HUGE merge from viewer-trunk. Many conflicts resolved.

1 files changed, 2854 insertions, 0 deletions

diff --git a/indra/newview/llagentcamera.cpp b/indra/newview/llagentcamera.cpp
new file mode 100644
index 0000000000..8ff55cafca
--- /dev/null
+++ b/indra/newview/llagentcamera.cpp
@@ -0,0 +1,2854 @@
+/** 
+ * @file llagentcamera.cpp
+ * @brief LLAgent class implementation
+ *
+ * $LicenseInfo:firstyear=2001&license=viewergpl$
+ * 
+ * Copyright (c) 2001-2009, Linden Research, Inc.
+ * 
+ * Second Life Viewer Source Code
+ * The source code in this file ("Source Code") is provided by Linden Lab
+ * to you under the terms of the GNU General Public License, version 2.0
+ * ("GPL"), unless you have obtained a separate licensing agreement
+ * ("Other License"), formally executed by you and Linden Lab.  Terms of
+ * the GPL can be found in doc/GPL-license.txt in this distribution, or
+ * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * 
+ * There are special exceptions to the terms and conditions of the GPL as
+ * it is applied to this Source Code. View the full text of the exception
+ * in the file doc/FLOSS-exception.txt in this software distribution, or
+ * online at
+ * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 
+ * By copying, modifying or distributing this software, you acknowledge
+ * that you have read and understood your obligations described above,
+ * and agree to abide by those obligations.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#include "llviewerprecompiledheaders.h"
+#include "llagentcamera.h" 
+
+#include "pipeline.h"
+
+#include "llagentlistener.h"
+#include "llagentwearables.h"
+#include "llagentui.h"
+#include "llanimationstates.h"
+#include "llbottomtray.h"
+#include "llcallingcard.h"
+#include "llchannelmanager.h"
+#include "llconsole.h"
+//#include "llfirstuse.h"
+#include "llfloatercamera.h"
+#include "llfloatercustomize.h"
+#include "llfloaterreg.h"
+#include "llfloatertools.h"
+#include "llgroupactions.h"
+#include "llgroupmgr.h"
+#include "llhomelocationresponder.h"
+#include "llhudmanager.h"
+#include "lljoystickbutton.h"
+#include "llmorphview.h"
+#include "llmoveview.h"
+#include "llnavigationbar.h" // to show/hide navigation bar when changing mouse look state
+#include "llnearbychatbar.h"
+#include "llnotificationsutil.h"
+#include "llparcel.h"
+#include "llsdutil.h"
+#include "llsidetray.h"
+#include "llsky.h"
+#include "llsmoothstep.h"
+#include "llstatusbar.h"
+#include "llteleportflags.h"
+#include "lltool.h"
+#include "lltoolmgr.h"
+#include "lltrans.h"
+#include "llviewercontrol.h"
+#include "llviewerdisplay.h"
+#include "llviewerjoystick.h"
+#include "llviewermediafocus.h"
+#include "llviewerobjectlist.h"
+#include "llviewerparcelmgr.h"
+#include "llviewerstats.h"
+#include "llvoavatarself.h"
+#include "llwindow.h"
+#include "llworld.h"
+#include "llworldmap.h"
+
+using namespace LLVOAvatarDefines;
+
+extern LLMenuBarGL* gMenuBarView;
+
+// Mousewheel camera zoom
+const F32 MIN_ZOOM_FRACTION = 0.25f;
+const F32 INITIAL_ZOOM_FRACTION = 1.f;
+const F32 MAX_ZOOM_FRACTION = 8.f;
+
+const F32 CAMERA_ZOOM_HALF_LIFE = 0.07f;	// seconds
+const F32 FOV_ZOOM_HALF_LIFE = 0.07f;	// seconds
+
+const F32 CAMERA_FOCUS_HALF_LIFE = 0.f;//0.02f;
+const F32 CAMERA_LAG_HALF_LIFE = 0.25f;
+const F32 MIN_CAMERA_LAG = 0.5f;
+const F32 MAX_CAMERA_LAG = 5.f;
+
+const F32 CAMERA_COLLIDE_EPSILON = 0.1f;
+const F32 MIN_CAMERA_DISTANCE = 0.1f;
+
+const F32 AVATAR_ZOOM_MIN_X_FACTOR = 0.55f;
+const F32 AVATAR_ZOOM_MIN_Y_FACTOR = 0.7f;
+const F32 AVATAR_ZOOM_MIN_Z_FACTOR = 1.15f;
+
+const F32 MAX_CAMERA_DISTANCE_FROM_AGENT = 50.f;
+
+const F32 MAX_CAMERA_SMOOTH_DISTANCE = 50.0f;
+
+const F32 HEAD_BUFFER_SIZE = 0.3f;
+
+const F32 CUSTOMIZE_AVATAR_CAMERA_ANIM_SLOP = 0.2f;
+
+const F32 LAND_MIN_ZOOM = 0.15f;
+
+const F32 AVATAR_MIN_ZOOM = 0.5f;
+const F32 OBJECT_MIN_ZOOM = 0.02f;
+
+const F32 APPEARANCE_MIN_ZOOM = 0.39f;
+const F32 APPEARANCE_MAX_ZOOM = 8.f;
+
+const F32 GROUND_TO_AIR_CAMERA_TRANSITION_TIME = 0.5f;
+const F32 GROUND_TO_AIR_CAMERA_TRANSITION_START_TIME = 0.5f;
+
+const F32 OBJECT_EXTENTS_PADDING = 0.5f;
+
+// The agent instance.
+LLAgentCamera gAgentCamera;
+
+//-----------------------------------------------------------------------------
+// LLAgentCamera()
+//-----------------------------------------------------------------------------
+LLAgentCamera::LLAgentCamera() :
+	mDrawDistance( DEFAULT_FAR_PLANE ),
+
+	mLookAt(NULL),
+	mPointAt(NULL),
+
+	mHUDTargetZoom(1.f),
+	mHUDCurZoom(1.f),
+
+	mForceMouselook(FALSE),
+
+	mCameraMode( CAMERA_MODE_THIRD_PERSON ),
+	mLastCameraMode( CAMERA_MODE_THIRD_PERSON ),
+
+	mCameraPreset(CAMERA_PRESET_REAR_VIEW),
+
+	mCameraAnimating( FALSE ),
+	mAnimationCameraStartGlobal(),
+	mAnimationFocusStartGlobal(),
+	mAnimationTimer(),
+	mAnimationDuration(0.33f),
+	
+	mCameraFOVZoomFactor(0.f),
+	mCameraCurrentFOVZoomFactor(0.f),
+	mCameraFocusOffset(),
+	mCameraFOVDefault(DEFAULT_FIELD_OF_VIEW),
+
+	mCameraCollidePlane(),
+
+	mCurrentCameraDistance(2.f),		// meters, set in init()
+	mTargetCameraDistance(2.f),
+	mCameraZoomFraction(1.f),			// deprecated
+	mThirdPersonHeadOffset(0.f, 0.f, 1.f),
+	mSitCameraEnabled(FALSE),
+	mCameraSmoothingLastPositionGlobal(),
+	mCameraSmoothingLastPositionAgent(),
+	mCameraSmoothingStop(FALSE),
+
+	mCameraUpVector(LLVector3::z_axis), // default is straight up
+
+	mFocusOnAvatar(TRUE),
+	mFocusGlobal(),
+	mFocusTargetGlobal(),
+	mFocusObject(NULL),
+	mFocusObjectDist(0.f),
+	mFocusObjectOffset(),
+	mFocusDotRadius( 0.1f ),			// meters
+	mTrackFocusObject(TRUE),
+	mUIOffset(0.f),
+
+	mOrbitLeftKey(0.f),
+	mOrbitRightKey(0.f),
+	mOrbitUpKey(0.f),
+	mOrbitDownKey(0.f),
+	mOrbitInKey(0.f),
+	mOrbitOutKey(0.f),
+
+	mPanUpKey(0.f),
+	mPanDownKey(0.f),
+	mPanLeftKey(0.f),
+	mPanRightKey(0.f),
+	mPanInKey(0.f),
+	mPanOutKey(0.f)
+{
+	mFollowCam.setMaxCameraDistantFromSubject( MAX_CAMERA_DISTANCE_FROM_AGENT );
+}
+
+// Requires gSavedSettings to be initialized.
+//-----------------------------------------------------------------------------
+// init()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::init()
+{
+	// *Note: this is where LLViewerCamera::getInstance() used to be constructed.
+
+	mDrawDistance = gSavedSettings.getF32("RenderFarClip");
+
+	LLViewerCamera::getInstance()->setView(DEFAULT_FIELD_OF_VIEW);
+	// Leave at 0.1 meters until we have real near clip management
+	LLViewerCamera::getInstance()->setNear(0.1f);
+	LLViewerCamera::getInstance()->setFar(mDrawDistance);			// if you want to change camera settings, do so in camera.h
+	LLViewerCamera::getInstance()->setAspect( gViewerWindow->getWorldViewAspectRatio() );		// default, overridden in LLViewerWindow::reshape
+	LLViewerCamera::getInstance()->setViewHeightInPixels(768);			// default, overridden in LLViewerWindow::reshape
+
+	mCameraFocusOffsetTarget = LLVector4(gSavedSettings.getVector3("CameraOffsetBuild"));
+	
+	mCameraPreset = (ECameraPreset) gSavedSettings.getU32("CameraPreset");
+
+	mCameraOffsetInitial[CAMERA_PRESET_REAR_VIEW] = gSavedSettings.getVector3("CameraOffsetRearView");
+	mCameraOffsetInitial[CAMERA_PRESET_FRONT_VIEW] = gSavedSettings.getVector3("CameraOffsetFrontView");
+	mCameraOffsetInitial[CAMERA_PRESET_GROUP_VIEW] = gSavedSettings.getVector3("CameraOffsetGroupView");
+
+	mFocusOffsetInitial[CAMERA_PRESET_REAR_VIEW] = gSavedSettings.getVector3d("FocusOffsetRearView");
+	mFocusOffsetInitial[CAMERA_PRESET_FRONT_VIEW] = gSavedSettings.getVector3d("FocusOffsetFrontView");
+	mFocusOffsetInitial[CAMERA_PRESET_GROUP_VIEW] = gSavedSettings.getVector3d("FocusOffsetGroupView");
+
+	mCameraCollidePlane.clearVec();
+	mCurrentCameraDistance = getCameraOffsetInitial().magVec() * gSavedSettings.getF32("CameraOffsetScale");
+	mTargetCameraDistance = mCurrentCameraDistance;
+	mCameraZoomFraction = 1.f;
+	mTrackFocusObject = gSavedSettings.getBOOL("TrackFocusObject");
+
+	mInitialized = TRUE;
+}
+
+//-----------------------------------------------------------------------------
+// cleanup()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::cleanup()
+{
+	setSitCamera(LLUUID::null);
+
+	if(mLookAt)
+	{
+		mLookAt->markDead() ;
+		mLookAt = NULL;
+	}
+	if(mPointAt)
+	{
+		mPointAt->markDead() ;
+		mPointAt = NULL;
+	}
+	setFocusObject(NULL);
+}
+
+void LLAgentCamera::setAvatarObject(LLVOAvatarSelf* avatar)
+{
+	if (!mLookAt)
+	{
+		mLookAt = (LLHUDEffectLookAt *)LLHUDManager::getInstance()->createViewerEffect(LLHUDObject::LL_HUD_EFFECT_LOOKAT);
+	}
+	if (!mPointAt)
+	{
+		mPointAt = (LLHUDEffectPointAt *)LLHUDManager::getInstance()->createViewerEffect(LLHUDObject::LL_HUD_EFFECT_POINTAT);
+	}
+	
+	if (!mLookAt.isNull())
+	{
+		mLookAt->setSourceObject(avatar);
+	}
+	if (!mPointAt.isNull())
+	{
+		mPointAt->setSourceObject(avatar);
+	}	
+}
+
+//-----------------------------------------------------------------------------
+// LLAgent()
+//-----------------------------------------------------------------------------
+LLAgentCamera::~LLAgentCamera()
+{
+	cleanup();
+
+	// *Note: this is where LLViewerCamera::getInstance() used to be deleted.
+}
+
+// Change camera back to third person, stop the autopilot,
+// deselect stuff, etc.
+//-----------------------------------------------------------------------------
+// resetView()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::resetView(BOOL reset_camera, BOOL change_camera)
+{
+	if (gAgent.getAutoPilot())
+	{
+		gAgent.stopAutoPilot(TRUE);
+	}
+
+	if (!gNoRender)
+	{
+		LLSelectMgr::getInstance()->unhighlightAll();
+
+		// By popular request, keep land selection while walking around. JC
+		// LLViewerParcelMgr::getInstance()->deselectLand();
+
+		// force deselect when walking and attachment is selected
+		// this is so people don't wig out when their avatar moves without animating
+		if (LLSelectMgr::getInstance()->getSelection()->isAttachment())
+		{
+			LLSelectMgr::getInstance()->deselectAll();
+		}
+
+		// Hide all popup menus
+		gMenuHolder->hideMenus();
+	}
+
+	if (change_camera && !gSavedSettings.getBOOL("FreezeTime"))
+	{
+		changeCameraToDefault();
+		
+		if (LLViewerJoystick::getInstance()->getOverrideCamera())
+		{
+			handle_toggle_flycam();
+		}
+
+		// reset avatar mode from eventual residual motion
+		if (LLToolMgr::getInstance()->inBuildMode())
+		{
+			LLViewerJoystick::getInstance()->moveAvatar(true);
+		}
+
+		//Camera Tool is needed for Free Camera Control Mode
+		if (!LLFloaterCamera::inFreeCameraMode())
+		{
+			LLFloaterReg::hideInstance("build");
+
+			// Switch back to basic toolset
+			LLToolMgr::getInstance()->setCurrentToolset(gBasicToolset);
+		}
+		
+		gViewerWindow->showCursor();
+	}
+
+
+	if (reset_camera && !gSavedSettings.getBOOL("FreezeTime"))
+	{
+		if (!gViewerWindow->getLeftMouseDown() && cameraThirdPerson())
+		{
+			// leaving mouse-steer mode
+			LLVector3 agent_at_axis = gAgent.getAtAxis();
+			agent_at_axis -= projected_vec(agent_at_axis, gAgent.getReferenceUpVector());
+			agent_at_axis.normalize();
+			gAgent.resetAxes(lerp(gAgent.getAtAxis(), agent_at_axis, LLCriticalDamp::getInterpolant(0.3f)));
+		}
+
+		setFocusOnAvatar(TRUE, ANIMATE);
+
+		mCameraFOVZoomFactor = 0.f;
+	}
+
+	mHUDTargetZoom = 1.f;
+}
+
+// Allow camera to be moved somewhere other than behind avatar.
+//-----------------------------------------------------------------------------
+// unlockView()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::unlockView()
+{
+	if (getFocusOnAvatar())
+	{
+		if (isAgentAvatarValid())
+		{
+			setFocusGlobal(LLVector3d::zero, gAgentAvatarp->mID);
+		}
+		setFocusOnAvatar(FALSE, FALSE);	// no animation
+	}
+}
+
+//-----------------------------------------------------------------------------
+// slamLookAt()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::slamLookAt(const LLVector3 &look_at)
+{
+	LLVector3 look_at_norm = look_at;
+	look_at_norm.mV[VZ] = 0.f;
+	look_at_norm.normalize();
+	gAgent.resetAxes(look_at_norm);
+}
+
+//-----------------------------------------------------------------------------
+// calcFocusOffset()
+//-----------------------------------------------------------------------------
+LLVector3 LLAgentCamera::calcFocusOffset(LLViewerObject *object, LLVector3 original_focus_point, S32 x, S32 y)
+{
+	LLMatrix4 obj_matrix = object->getRenderMatrix();
+	LLQuaternion obj_rot = object->getRenderRotation();
+	LLVector3 obj_pos = object->getRenderPosition();
+
+	BOOL is_avatar = object->isAvatar();
+	// if is avatar - don't do any funk heuristics to position the focal point
+	// see DEV-30589
+	if (is_avatar)
+	{
+		return original_focus_point - obj_pos;
+	}
+
+	
+	LLQuaternion inv_obj_rot = ~obj_rot; // get inverse of rotation
+	LLVector3 object_extents = object->getScale();
+	// make sure they object extents are non-zero
+	object_extents.clamp(0.001f, F32_MAX);
+
+	// obj_to_cam_ray is unit vector pointing from object center to camera, in the coordinate frame of the object
+	LLVector3 obj_to_cam_ray = obj_pos - LLViewerCamera::getInstance()->getOrigin();
+	obj_to_cam_ray.rotVec(inv_obj_rot);
+	obj_to_cam_ray.normalize();
+
+	// obj_to_cam_ray_proportions are the (positive) ratios of 
+	// the obj_to_cam_ray x,y,z components with the x,y,z object dimensions.
+	LLVector3 obj_to_cam_ray_proportions;
+	obj_to_cam_ray_proportions.mV[VX] = llabs(obj_to_cam_ray.mV[VX] / object_extents.mV[VX]);
+	obj_to_cam_ray_proportions.mV[VY] = llabs(obj_to_cam_ray.mV[VY] / object_extents.mV[VY]);
+	obj_to_cam_ray_proportions.mV[VZ] = llabs(obj_to_cam_ray.mV[VZ] / object_extents.mV[VZ]);
+
+	// find the largest ratio stored in obj_to_cam_ray_proportions
+	// this corresponds to the object's local axial plane (XY, YZ, XZ) that is *most* facing the camera
+	LLVector3 longest_object_axis;
+	// is x-axis longest?
+	if (obj_to_cam_ray_proportions.mV[VX] > obj_to_cam_ray_proportions.mV[VY] 
+		&& obj_to_cam_ray_proportions.mV[VX] > obj_to_cam_ray_proportions.mV[VZ])
+	{
+		// then grab it
+		longest_object_axis.setVec(obj_matrix.getFwdRow4());
+	}
+	// is y-axis longest?
+	else if (obj_to_cam_ray_proportions.mV[VY] > obj_to_cam_ray_proportions.mV[VZ])
+	{
+		// then grab it
+		longest_object_axis.setVec(obj_matrix.getLeftRow4());
+	}
+	// otherwise, use z axis
+	else
+	{
+		longest_object_axis.setVec(obj_matrix.getUpRow4());
+	}
+
+	// Use this axis as the normal to project mouse click on to plane with that normal, at the object center.
+	// This generates a point behind the mouse cursor that is approximately in the middle of the object in
+	// terms of depth.  
+	// We do this to allow the camera rotation tool to "tumble" the object by rotating the camera.
+	// If the focus point were the object surface under the mouse, camera rotation would introduce an undesirable
+	// eccentricity to the object orientation
+	LLVector3 focus_plane_normal(longest_object_axis);
+	focus_plane_normal.normalize();
+
+	LLVector3d focus_pt_global;
+	gViewerWindow->mousePointOnPlaneGlobal(focus_pt_global, x, y, gAgent.getPosGlobalFromAgent(obj_pos), focus_plane_normal);
+	LLVector3 focus_pt = gAgent.getPosAgentFromGlobal(focus_pt_global);
+
+	// find vector from camera to focus point in object space
+	LLVector3 camera_to_focus_vec = focus_pt - LLViewerCamera::getInstance()->getOrigin();
+	camera_to_focus_vec.rotVec(inv_obj_rot);
+
+	// find vector from object origin to focus point in object coordinates
+	LLVector3 focus_offset_from_object_center = focus_pt - obj_pos;
+	// convert to object-local space
+	focus_offset_from_object_center.rotVec(inv_obj_rot);
+
+	// We need to project the focus point back into the bounding box of the focused object.
+	// Do this by calculating the XYZ scale factors needed to get focus offset back in bounds along the camera_focus axis
+	LLVector3 clip_fraction;
+
+	// for each axis...
+	for (U32 axis = VX; axis <= VZ; axis++)
+	{
+		//...calculate distance that focus offset sits outside of bounding box along that axis...
+		//NOTE: dist_out_of_bounds keeps the sign of focus_offset_from_object_center 
+		F32 dist_out_of_bounds;
+		if (focus_offset_from_object_center.mV[axis] > 0.f)
+		{
+			dist_out_of_bounds = llmax(0.f, focus_offset_from_object_center.mV[axis] - (object_extents.mV[axis] * 0.5f));
+		}
+		else
+		{
+			dist_out_of_bounds = llmin(0.f, focus_offset_from_object_center.mV[axis] + (object_extents.mV[axis] * 0.5f));
+		}
+
+		//...then calculate the scale factor needed to push camera_to_focus_vec back in bounds along current axis
+		if (llabs(camera_to_focus_vec.mV[axis]) < 0.0001f)
+		{
+			// don't divide by very small number
+			clip_fraction.mV[axis] = 0.f;
+		}
+		else
+		{
+			clip_fraction.mV[axis] = dist_out_of_bounds / camera_to_focus_vec.mV[axis];
+		}
+	}
+
+	LLVector3 abs_clip_fraction = clip_fraction;
+	abs_clip_fraction.abs();
+
+	// find axis of focus offset that is *most* outside the bounding box and use that to
+	// rescale focus offset to inside object extents
+	if (abs_clip_fraction.mV[VX] > abs_clip_fraction.mV[VY]
+		&& abs_clip_fraction.mV[VX] > abs_clip_fraction.mV[VZ])
+	{
+		focus_offset_from_object_center -= clip_fraction.mV[VX] * camera_to_focus_vec;
+	}
+	else if (abs_clip_fraction.mV[VY] > abs_clip_fraction.mV[VZ])
+	{
+		focus_offset_from_object_center -= clip_fraction.mV[VY] * camera_to_focus_vec;
+	}
+	else
+	{
+		focus_offset_from_object_center -= clip_fraction.mV[VZ] * camera_to_focus_vec;
+	}
+
+	// convert back to world space
+	focus_offset_from_object_center.rotVec(obj_rot);
+	
+	// now, based on distance of camera from object relative to object size
+	// push the focus point towards the near surface of the object when (relatively) close to the objcet
+	// or keep the focus point in the object middle when (relatively) far
+	// NOTE: leave focus point in middle of avatars, since the behavior you want when alt-zooming on avatars
+	// is almost always "tumble about middle" and not "spin around surface point"
+	if (!is_avatar) 
+	{
+		LLVector3 obj_rel = original_focus_point - object->getRenderPosition();
+		
+		//now that we have the object relative position, we should bias toward the center of the object 
+		//based on the distance of the camera to the focus point vs. the distance of the camera to the focus
+
+		F32 relDist = llabs(obj_rel * LLViewerCamera::getInstance()->getAtAxis());
+		F32 viewDist = dist_vec(obj_pos + obj_rel, LLViewerCamera::getInstance()->getOrigin());
+
+
+		LLBBox obj_bbox = object->getBoundingBoxAgent();
+		F32 bias = 0.f;
+
+		// virtual_camera_pos is the camera position we are simulating by backing the camera off
+		// and adjusting the FOV
+		LLVector3 virtual_camera_pos = gAgent.getPosAgentFromGlobal(mFocusTargetGlobal + (getCameraPositionGlobal() - mFocusTargetGlobal) / (1.f + mCameraFOVZoomFactor));
+
+		// if the camera is inside the object (large, hollow objects, for example)
+		// leave focus point all the way to destination depth, away from object center
+		if(!obj_bbox.containsPointAgent(virtual_camera_pos))
+		{
+			// perform magic number biasing of focus point towards surface vs. planar center
+			bias = clamp_rescale(relDist/viewDist, 0.1f, 0.7f, 0.0f, 1.0f);
+			obj_rel = lerp(focus_offset_from_object_center, obj_rel, bias);
+		}
+			
+		focus_offset_from_object_center = obj_rel;
+	}
+
+	return focus_offset_from_object_center;
+}
+
+//-----------------------------------------------------------------------------
+// calcCameraMinDistance()
+//-----------------------------------------------------------------------------
+BOOL LLAgentCamera::calcCameraMinDistance(F32 &obj_min_distance)
+{
+	BOOL soft_limit = FALSE; // is the bounding box to be treated literally (volumes) or as an approximation (avatars)
+
+	if (!mFocusObject || mFocusObject->isDead())
+	{
+		obj_min_distance = 0.f;
+		return TRUE;
+	}
+
+	if (mFocusObject->mDrawable.isNull())
+	{
+#ifdef LL_RELEASE_FOR_DOWNLOAD
+		llwarns << "Focus object with no drawable!" << llendl;
+#else
+		mFocusObject->dump();
+		llerrs << "Focus object with no drawable!" << llendl;
+#endif
+		obj_min_distance = 0.f;
+		return TRUE;
+	}
+	
+	LLQuaternion inv_object_rot = ~mFocusObject->getRenderRotation();
+	LLVector3 target_offset_origin = mFocusObjectOffset;
+	LLVector3 camera_offset_target(getCameraPositionAgent() - gAgent.getPosAgentFromGlobal(mFocusTargetGlobal));
+
+	// convert offsets into object local space
+	camera_offset_target.rotVec(inv_object_rot);
+	target_offset_origin.rotVec(inv_object_rot);
+
+	// push around object extents based on target offset
+	LLVector3 object_extents = mFocusObject->getScale();
+	if (mFocusObject->isAvatar())
+	{
+		// fudge factors that lets you zoom in on avatars a bit more (which don't do FOV zoom)
+		object_extents.mV[VX] *= AVATAR_ZOOM_MIN_X_FACTOR;
+		object_extents.mV[VY] *= AVATAR_ZOOM_MIN_Y_FACTOR;
+		object_extents.mV[VZ] *= AVATAR_ZOOM_MIN_Z_FACTOR;
+		soft_limit = TRUE;
+	}
+	LLVector3 abs_target_offset = target_offset_origin;
+	abs_target_offset.abs();
+
+	LLVector3 target_offset_dir = target_offset_origin;
+	F32 object_radius = mFocusObject->getVObjRadius();
+
+	BOOL target_outside_object_extents = FALSE;
+
+	for (U32 i = VX; i <= VZ; i++)
+	{
+		if (abs_target_offset.mV[i] * 2.f > object_extents.mV[i] + OBJECT_EXTENTS_PADDING)
+		{
+			target_outside_object_extents = TRUE;
+		}
+		if (camera_offset_target.mV[i] > 0.f)
+		{
+			object_extents.mV[i] -= target_offset_origin.mV[i] * 2.f;
+		}
+		else
+		{
+			object_extents.mV[i] += target_offset_origin.mV[i] * 2.f;
+		}
+	}
+
+	// don't shrink the object extents so far that the object inverts
+	object_extents.clamp(0.001f, F32_MAX);
+
+	// move into first octant
+	LLVector3 camera_offset_target_abs_norm = camera_offset_target;
+	camera_offset_target_abs_norm.abs();
+	// make sure offset is non-zero
+	camera_offset_target_abs_norm.clamp(0.001f, F32_MAX);
+	camera_offset_target_abs_norm.normalize();
+
+	// find camera position relative to normalized object extents
+	LLVector3 camera_offset_target_scaled = camera_offset_target_abs_norm;
+	camera_offset_target_scaled.mV[VX] /= object_extents.mV[VX];
+	camera_offset_target_scaled.mV[VY] /= object_extents.mV[VY];
+	camera_offset_target_scaled.mV[VZ] /= object_extents.mV[VZ];
+
+	if (camera_offset_target_scaled.mV[VX] > camera_offset_target_scaled.mV[VY] && 
+		camera_offset_target_scaled.mV[VX] > camera_offset_target_scaled.mV[VZ])
+	{
+		if (camera_offset_target_abs_norm.mV[VX] < 0.001f)
+		{
+			obj_min_distance = object_extents.mV[VX] * 0.5f;
+		}
+		else
+		{
+			obj_min_distance = object_extents.mV[VX] * 0.5f / camera_offset_target_abs_norm.mV[VX];
+		}
+	}
+	else if (camera_offset_target_scaled.mV[VY] > camera_offset_target_scaled.mV[VZ])
+	{
+		if (camera_offset_target_abs_norm.mV[VY] < 0.001f)
+		{
+			obj_min_distance = object_extents.mV[VY] * 0.5f;
+		}
+		else
+		{
+			obj_min_distance = object_extents.mV[VY] * 0.5f / camera_offset_target_abs_norm.mV[VY];
+		}
+	}
+	else
+	{
+		if (camera_offset_target_abs_norm.mV[VZ] < 0.001f)
+		{
+			obj_min_distance = object_extents.mV[VZ] * 0.5f;
+		}
+		else
+		{
+			obj_min_distance = object_extents.mV[VZ] * 0.5f / camera_offset_target_abs_norm.mV[VZ];
+		}
+	}
+
+	LLVector3 object_split_axis;
+	LLVector3 target_offset_scaled = target_offset_origin;
+	target_offset_scaled.abs();
+	target_offset_scaled.normalize();
+	target_offset_scaled.mV[VX] /= object_extents.mV[VX];
+	target_offset_scaled.mV[VY] /= object_extents.mV[VY];
+	target_offset_scaled.mV[VZ] /= object_extents.mV[VZ];
+
+	if (target_offset_scaled.mV[VX] > target_offset_scaled.mV[VY] && 
+		target_offset_scaled.mV[VX] > target_offset_scaled.mV[VZ])
+	{
+		object_split_axis = LLVector3::x_axis;
+	}
+	else if (target_offset_scaled.mV[VY] > target_offset_scaled.mV[VZ])
+	{
+		object_split_axis = LLVector3::y_axis;
+	}
+	else
+	{
+		object_split_axis = LLVector3::z_axis;
+	}
+
+	LLVector3 camera_offset_object(getCameraPositionAgent() - mFocusObject->getPositionAgent());
+
+	// length projected orthogonal to target offset
+	F32 camera_offset_dist = (camera_offset_object - target_offset_dir * (camera_offset_object * target_offset_dir)).magVec();
+
+	// calculate whether the target point would be "visible" if it were outside the bounding box
+	// on the opposite of the splitting plane defined by object_split_axis;
+	BOOL exterior_target_visible = FALSE;
+	if (camera_offset_dist > object_radius)
+	{
+		// target is visible from camera, so turn off fov zoom
+		exterior_target_visible = TRUE;
+	}
+
+	F32 camera_offset_clip = camera_offset_object * object_split_axis;
+	F32 target_offset_clip = target_offset_dir * object_split_axis;
+
+	// target has moved outside of object extents
+	// check to see if camera and target are on same side 
+	if (target_outside_object_extents)
+	{
+		if (camera_offset_clip > 0.f && target_offset_clip > 0.f)
+		{
+			return FALSE;
+		}
+		else if (camera_offset_clip < 0.f && target_offset_clip < 0.f)
+		{
+			return FALSE;
+		}
+	}
+
+	// clamp obj distance to diagonal of 10 by 10 cube
+	obj_min_distance = llmin(obj_min_distance, 10.f * F_SQRT3);
+
+	obj_min_distance += LLViewerCamera::getInstance()->getNear() + (soft_limit ? 0.1f : 0.2f);
+	
+	return TRUE;
+}
+
+F32 LLAgentCamera::getCameraZoomFraction()
+{
+	// 0.f -> camera zoomed all the way out
+	// 1.f -> camera zoomed all the way in
+	LLObjectSelectionHandle selection = LLSelectMgr::getInstance()->getSelection();
+	if (selection->getObjectCount() && selection->getSelectType() == SELECT_TYPE_HUD)
+	{
+		// already [0,1]
+		return mHUDTargetZoom;
+	}
+	else if (mFocusOnAvatar && cameraThirdPerson())
+	{
+		return clamp_rescale(mCameraZoomFraction, MIN_ZOOM_FRACTION, MAX_ZOOM_FRACTION, 1.f, 0.f);
+	}
+	else if (cameraCustomizeAvatar())
+	{
+		F32 distance = (F32)mCameraFocusOffsetTarget.magVec();
+		return clamp_rescale(distance, APPEARANCE_MIN_ZOOM, APPEARANCE_MAX_ZOOM, 1.f, 0.f );
+	}
+	else
+	{
+		F32 min_zoom;
+		const F32 DIST_FUDGE = 16.f; // meters
+		F32 max_zoom = llmin(mDrawDistance - DIST_FUDGE, 
+								LLWorld::getInstance()->getRegionWidthInMeters() - DIST_FUDGE,
+								MAX_CAMERA_DISTANCE_FROM_AGENT);
+
+		F32 distance = (F32)mCameraFocusOffsetTarget.magVec();
+		if (mFocusObject.notNull())
+		{
+			if (mFocusObject->isAvatar())
+			{
+				min_zoom = AVATAR_MIN_ZOOM;
+			}
+			else
+			{
+				min_zoom = OBJECT_MIN_ZOOM;
+			}
+		}
+		else
+		{
+			min_zoom = LAND_MIN_ZOOM;
+		}
+
+		return clamp_rescale(distance, min_zoom, max_zoom, 1.f, 0.f);
+	}
+}
+
+void LLAgentCamera::setCameraZoomFraction(F32 fraction)
+{
+	// 0.f -> camera zoomed all the way out
+	// 1.f -> camera zoomed all the way in
+	LLObjectSelectionHandle selection = LLSelectMgr::getInstance()->getSelection();
+
+	if (selection->getObjectCount() && selection->getSelectType() == SELECT_TYPE_HUD)
+	{
+		mHUDTargetZoom = fraction;
+	}
+	else if (mFocusOnAvatar && cameraThirdPerson())
+	{
+		mCameraZoomFraction = rescale(fraction, 0.f, 1.f, MAX_ZOOM_FRACTION, MIN_ZOOM_FRACTION);
+	}
+	else if (cameraCustomizeAvatar())
+	{
+		LLVector3d camera_offset_dir = mCameraFocusOffsetTarget;
+		camera_offset_dir.normalize();
+		mCameraFocusOffsetTarget = camera_offset_dir * rescale(fraction, 0.f, 1.f, APPEARANCE_MAX_ZOOM, APPEARANCE_MIN_ZOOM);
+	}
+	else
+	{
+		F32 min_zoom = LAND_MIN_ZOOM;
+		const F32 DIST_FUDGE = 16.f; // meters
+		F32 max_zoom = llmin(mDrawDistance - DIST_FUDGE, 
+								LLWorld::getInstance()->getRegionWidthInMeters() - DIST_FUDGE,
+								MAX_CAMERA_DISTANCE_FROM_AGENT);
+
+		if (mFocusObject.notNull())
+		{
+			if (mFocusObject.notNull())
+			{
+				if (mFocusObject->isAvatar())
+				{
+					min_zoom = AVATAR_MIN_ZOOM;
+				}
+				else
+				{
+					min_zoom = OBJECT_MIN_ZOOM;
+				}
+			}
+		}
+
+		LLVector3d camera_offset_dir = mCameraFocusOffsetTarget;
+		camera_offset_dir.normalize();
+		mCameraFocusOffsetTarget = camera_offset_dir * rescale(fraction, 0.f, 1.f, max_zoom, min_zoom);
+	}
+	startCameraAnimation();
+}
+
+
+//-----------------------------------------------------------------------------
+// cameraOrbitAround()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::cameraOrbitAround(const F32 radians)
+{
+	LLObjectSelectionHandle selection = LLSelectMgr::getInstance()->getSelection();
+	if (selection->getObjectCount() && selection->getSelectType() == SELECT_TYPE_HUD)
+	{
+		// do nothing for hud selection
+	}
+	else if (mFocusOnAvatar && (mCameraMode == CAMERA_MODE_THIRD_PERSON || mCameraMode == CAMERA_MODE_FOLLOW))
+	{
+		gAgent.yaw(radians);
+	}
+	else
+	{
+		mCameraFocusOffsetTarget.rotVec(radians, 0.f, 0.f, 1.f);
+		
+		cameraZoomIn(1.f);
+	}
+}
+
+
+//-----------------------------------------------------------------------------
+// cameraOrbitOver()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::cameraOrbitOver(const F32 angle)
+{
+	LLObjectSelectionHandle selection = LLSelectMgr::getInstance()->getSelection();
+	if (selection->getObjectCount() && selection->getSelectType() == SELECT_TYPE_HUD)
+	{
+		// do nothing for hud selection
+	}
+	else if (mFocusOnAvatar && mCameraMode == CAMERA_MODE_THIRD_PERSON)
+	{
+		gAgent.pitch(angle);
+	}
+	else
+	{
+		LLVector3 camera_offset_unit(mCameraFocusOffsetTarget);
+		camera_offset_unit.normalize();
+
+		F32 angle_from_up = acos( camera_offset_unit * gAgent.getReferenceUpVector() );
+
+		LLVector3d left_axis;
+		left_axis.setVec(LLViewerCamera::getInstance()->getLeftAxis());
+		F32 new_angle = llclamp(angle_from_up - angle, 1.f * DEG_TO_RAD, 179.f * DEG_TO_RAD);
+		mCameraFocusOffsetTarget.rotVec(angle_from_up - new_angle, left_axis);
+
+		cameraZoomIn(1.f);
+	}
+}
+
+//-----------------------------------------------------------------------------
+// cameraZoomIn()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::cameraZoomIn(const F32 fraction)
+{
+	if (gDisconnected)
+	{
+		return;
+	}
+
+	LLObjectSelectionHandle selection = LLSelectMgr::getInstance()->getSelection();
+	if (selection->getObjectCount() && selection->getSelectType() == SELECT_TYPE_HUD)
+	{
+		// just update hud zoom level
+		mHUDTargetZoom /= fraction;
+		return;
+	}
+
+
+	LLVector3d	camera_offset(mCameraFocusOffsetTarget);
+	LLVector3d	camera_offset_unit(mCameraFocusOffsetTarget);
+	F32 min_zoom = LAND_MIN_ZOOM;
+	F32 current_distance = (F32)camera_offset_unit.normalize();
+	F32 new_distance = current_distance * fraction;
+
+	// Don't move through focus point
+	if (mFocusObject)
+	{
+		LLVector3 camera_offset_dir((F32)camera_offset_unit.mdV[VX], (F32)camera_offset_unit.mdV[VY], (F32)camera_offset_unit.mdV[VZ]);
+
+		if (mFocusObject->isAvatar())
+		{
+			calcCameraMinDistance(min_zoom);
+		}
+		else
+		{
+			min_zoom = OBJECT_MIN_ZOOM;
+		}
+	}
+
+	new_distance = llmax(new_distance, min_zoom); 
+
+	// Don't zoom too far back
+	const F32 DIST_FUDGE = 16.f; // meters
+	F32 max_distance = llmin(mDrawDistance - DIST_FUDGE, 
+							 LLWorld::getInstance()->getRegionWidthInMeters() - DIST_FUDGE );
+
+	if (new_distance > max_distance)
+	{
+		new_distance = max_distance;
+
+		/*
+		// Unless camera is unlocked
+		if (!LLViewerCamera::sDisableCameraConstraints)
+		{
+			return;
+		}
+		*/
+	}
+
+	if( cameraCustomizeAvatar() )
+	{
+		new_distance = llclamp( new_distance, APPEARANCE_MIN_ZOOM, APPEARANCE_MAX_ZOOM );
+	}
+
+	mCameraFocusOffsetTarget = new_distance * camera_offset_unit;
+}
+
+//-----------------------------------------------------------------------------
+// cameraOrbitIn()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::cameraOrbitIn(const F32 meters)
+{
+	if (mFocusOnAvatar && mCameraMode == CAMERA_MODE_THIRD_PERSON)
+	{
+		F32 camera_offset_dist = llmax(0.001f, getCameraOffsetInitial().magVec() * gSavedSettings.getF32("CameraOffsetScale"));
+		
+		mCameraZoomFraction = (mTargetCameraDistance - meters) / camera_offset_dist;
+
+		if (!gSavedSettings.getBOOL("FreezeTime") && mCameraZoomFraction < MIN_ZOOM_FRACTION && meters > 0.f)
+		{
+			// No need to animate, camera is already there.
+			changeCameraToMouselook(FALSE);
+		}
+
+		mCameraZoomFraction = llclamp(mCameraZoomFraction, MIN_ZOOM_FRACTION, MAX_ZOOM_FRACTION);
+	}
+	else
+	{
+		LLVector3d	camera_offset(mCameraFocusOffsetTarget);
+		LLVector3d	camera_offset_unit(mCameraFocusOffsetTarget);
+		F32 current_distance = (F32)camera_offset_unit.normalize();
+		F32 new_distance = current_distance - meters;
+		F32 min_zoom = LAND_MIN_ZOOM;
+		
+		// Don't move through focus point
+		if (mFocusObject.notNull())
+		{
+			if (mFocusObject->isAvatar())
+			{
+				min_zoom = AVATAR_MIN_ZOOM;
+			}
+			else
+			{
+				min_zoom = OBJECT_MIN_ZOOM;
+			}
+		}
+
+		new_distance = llmax(new_distance, min_zoom);
+
+		// Don't zoom too far back
+		const F32 DIST_FUDGE = 16.f; // meters
+		F32 max_distance = llmin(mDrawDistance - DIST_FUDGE, 
+								 LLWorld::getInstance()->getRegionWidthInMeters() - DIST_FUDGE );
+
+		if (new_distance > max_distance)
+		{
+			// Unless camera is unlocked
+			if (!gSavedSettings.getBOOL("DisableCameraConstraints"))
+			{
+				return;
+			}
+		}
+
+		if( CAMERA_MODE_CUSTOMIZE_AVATAR == getCameraMode() )
+		{
+			new_distance = llclamp( new_distance, APPEARANCE_MIN_ZOOM, APPEARANCE_MAX_ZOOM );
+		}
+
+		// Compute new camera offset
+		mCameraFocusOffsetTarget = new_distance * camera_offset_unit;
+		cameraZoomIn(1.f);
+	}
+}
+
+
+//-----------------------------------------------------------------------------
+// cameraPanIn()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::cameraPanIn(F32 meters)
+{
+	LLVector3d at_axis;
+	at_axis.setVec(LLViewerCamera::getInstance()->getAtAxis());
+
+	mFocusTargetGlobal += meters * at_axis;
+	mFocusGlobal = mFocusTargetGlobal;
+	// don't enforce zoom constraints as this is the only way for users to get past them easily
+	updateFocusOffset();
+	// NOTE: panning movements expect the camera to move exactly with the focus target, not animated behind -Nyx
+	mCameraSmoothingLastPositionGlobal = calcCameraPositionTargetGlobal();
+}
+
+//-----------------------------------------------------------------------------
+// cameraPanLeft()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::cameraPanLeft(F32 meters)
+{
+	LLVector3d left_axis;
+	left_axis.setVec(LLViewerCamera::getInstance()->getLeftAxis());
+
+	mFocusTargetGlobal += meters * left_axis;
+	mFocusGlobal = mFocusTargetGlobal;
+
+	// disable smoothing for camera pan, which causes some residents unhappiness
+	mCameraSmoothingStop = TRUE;
+	
+	cameraZoomIn(1.f);
+	updateFocusOffset();
+	// NOTE: panning movements expect the camera to move exactly with the focus target, not animated behind - Nyx
+	mCameraSmoothingLastPositionGlobal = calcCameraPositionTargetGlobal();
+}
+
+//-----------------------------------------------------------------------------
+// cameraPanUp()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::cameraPanUp(F32 meters)
+{
+	LLVector3d up_axis;
+	up_axis.setVec(LLViewerCamera::getInstance()->getUpAxis());
+
+	mFocusTargetGlobal += meters * up_axis;
+	mFocusGlobal = mFocusTargetGlobal;
+
+	// disable smoothing for camera pan, which causes some residents unhappiness
+	mCameraSmoothingStop = TRUE;
+
+	cameraZoomIn(1.f);
+	updateFocusOffset();
+	// NOTE: panning movements expect the camera to move exactly with the focus target, not animated behind -Nyx
+	mCameraSmoothingLastPositionGlobal = calcCameraPositionTargetGlobal();
+}
+
+//-----------------------------------------------------------------------------
+// updateLookAt()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::updateLookAt(const S32 mouse_x, const S32 mouse_y)
+{
+	static LLVector3 last_at_axis;
+
+	if (!isAgentAvatarValid()) return;
+
+	LLQuaternion av_inv_rot = ~gAgentAvatarp->mRoot.getWorldRotation();
+	LLVector3 root_at = LLVector3::x_axis * gAgentAvatarp->mRoot.getWorldRotation();
+
+	if 	((gViewerWindow->getMouseVelocityStat()->getCurrent() < 0.01f) &&
+		 (root_at * last_at_axis > 0.95f))
+	{
+		LLVector3 vel = gAgentAvatarp->getVelocity();
+		if (vel.magVecSquared() > 4.f)
+		{
+			setLookAt(LOOKAT_TARGET_IDLE, gAgentAvatarp, vel * av_inv_rot);
+		}
+		else
+		{
+			// *FIX: rotate mframeagent by sit object's rotation?
+			LLQuaternion look_rotation = gAgentAvatarp->isSitting() ? gAgentAvatarp->getRenderRotation() : gAgent.getFrameAgent().getQuaternion(); // use camera's current rotation
+			LLVector3 look_offset = LLVector3(2.f, 0.f, 0.f) * look_rotation * av_inv_rot;
+			setLookAt(LOOKAT_TARGET_IDLE, gAgentAvatarp, look_offset);
+		}
+		last_at_axis = root_at;
+		return;
+	}
+
+	last_at_axis = root_at;
+	
+	if (CAMERA_MODE_CUSTOMIZE_AVATAR == getCameraMode())
+	{
+		setLookAt(LOOKAT_TARGET_NONE, gAgentAvatarp, LLVector3(-2.f, 0.f, 0.f));	
+	}
+	else
+	{
+		// Move head based on cursor position
+		ELookAtType lookAtType = LOOKAT_TARGET_NONE;
+		LLVector3 headLookAxis;
+		LLCoordFrame frameCamera = *((LLCoordFrame*)LLViewerCamera::getInstance());
+
+		if (cameraMouselook())
+		{
+			lookAtType = LOOKAT_TARGET_MOUSELOOK;
+		}
+		else if (cameraThirdPerson())
+		{
+			// range from -.5 to .5
+			F32 x_from_center = 
+				((F32) mouse_x / (F32) gViewerWindow->getWindowWidthScaled() ) - 0.5f;
+			F32 y_from_center = 
+				((F32) mouse_y / (F32) gViewerWindow->getWindowHeightScaled() ) - 0.5f;
+
+			frameCamera.yaw( - x_from_center * gSavedSettings.getF32("YawFromMousePosition") * DEG_TO_RAD);
+			frameCamera.pitch( - y_from_center * gSavedSettings.getF32("PitchFromMousePosition") * DEG_TO_RAD);
+			lookAtType = LOOKAT_TARGET_FREELOOK;
+		}
+
+		headLookAxis = frameCamera.getAtAxis();
+		// RN: we use world-space offset for mouselook and freelook
+		//headLookAxis = headLookAxis * av_inv_rot;
+		setLookAt(lookAtType, gAgentAvatarp, headLookAxis);
+	}
+}
+
+//-----------------------------------------------------------------------------
+// updateCamera()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::updateCamera()
+{
+	static LLFastTimer::DeclareTimer ftm("Camera");
+	LLFastTimer t(ftm);
+
+	//Ventrella - changed camera_skyward to the new global "mCameraUpVector"
+	mCameraUpVector = LLVector3::z_axis;
+	//LLVector3	camera_skyward(0.f, 0.f, 1.f);
+	//end Ventrella
+
+	U32 camera_mode = mCameraAnimating ? mLastCameraMode : mCameraMode;
+
+	validateFocusObject();
+
+	if (isAgentAvatarValid() && 
+		gAgentAvatarp->isSitting() &&
+		camera_mode == CAMERA_MODE_MOUSELOOK)
+	{
+		//Ventrella
+		//changed camera_skyward to the new global "mCameraUpVector"
+		mCameraUpVector = mCameraUpVector * gAgentAvatarp->getRenderRotation();
+		//end Ventrella
+	}
+
+	if (cameraThirdPerson() && mFocusOnAvatar && LLFollowCamMgr::getActiveFollowCamParams())
+	{
+		changeCameraToFollow();
+	}
+
+	//Ventrella
+	//NOTE - this needs to be integrated into a general upVector system here within llAgent. 
+	if ( camera_mode == CAMERA_MODE_FOLLOW && mFocusOnAvatar )
+	{
+		mCameraUpVector = mFollowCam.getUpVector();
+	}
+	//end Ventrella
+
+	if (mSitCameraEnabled)
+	{
+		if (mSitCameraReferenceObject->isDead())
+		{
+			setSitCamera(LLUUID::null);
+		}
+	}
+
+	// Update UI with our camera inputs
+	LLFloaterCamera* camera_floater = LLFloaterReg::findTypedInstance<LLFloaterCamera>("camera");
+	if (camera_floater)
+	{
+		camera_floater->mRotate->setToggleState(
+		mOrbitRightKey > 0.f,	// left
+		mOrbitUpKey > 0.f,		// top
+		mOrbitLeftKey > 0.f,	// right
+		mOrbitDownKey > 0.f);	// bottom
+
+		camera_floater->mTrack->setToggleState(
+		mPanLeftKey > 0.f,		// left
+		mPanUpKey > 0.f,		// top
+		mPanRightKey > 0.f,		// right
+		mPanDownKey > 0.f);		// bottom
+	}
+
+	// Handle camera movement based on keyboard.
+	const F32 ORBIT_OVER_RATE = 90.f * DEG_TO_RAD;			// radians per second
+	const F32 ORBIT_AROUND_RATE = 90.f * DEG_TO_RAD;		// radians per second
+	const F32 PAN_RATE = 5.f;								// meters per second
+
+	if( mOrbitUpKey || mOrbitDownKey )
+	{
+		F32 input_rate = mOrbitUpKey - mOrbitDownKey;
+		cameraOrbitOver( input_rate * ORBIT_OVER_RATE / gFPSClamped );
+	}
+
+	if( mOrbitLeftKey || mOrbitRightKey)
+	{
+		F32 input_rate = mOrbitLeftKey - mOrbitRightKey;
+		cameraOrbitAround( input_rate * ORBIT_AROUND_RATE / gFPSClamped );
+	}
+
+	if( mOrbitInKey || mOrbitOutKey )
+	{
+		F32 input_rate = mOrbitInKey - mOrbitOutKey;
+		
+		LLVector3d to_focus = gAgent.getPosGlobalFromAgent(LLViewerCamera::getInstance()->getOrigin()) - calcFocusPositionTargetGlobal();
+		F32 distance_to_focus = (F32)to_focus.magVec();
+		// Move at distance (in meters) meters per second
+		cameraOrbitIn( input_rate * distance_to_focus / gFPSClamped );
+	}
+
+	if( mPanInKey || mPanOutKey )
+	{
+		F32 input_rate = mPanInKey - mPanOutKey;
+		cameraPanIn( input_rate * PAN_RATE / gFPSClamped );
+	}
+
+	if( mPanRightKey || mPanLeftKey )
+	{
+		F32 input_rate = mPanRightKey - mPanLeftKey;
+		cameraPanLeft( input_rate * -PAN_RATE / gFPSClamped );
+	}
+
+	if( mPanUpKey || mPanDownKey )
+	{
+		F32 input_rate = mPanUpKey - mPanDownKey;
+		cameraPanUp( input_rate * PAN_RATE / gFPSClamped );
+	}
+
+	// Clear camera keyboard keys.
+	mOrbitLeftKey		= 0.f;
+	mOrbitRightKey		= 0.f;
+	mOrbitUpKey			= 0.f;
+	mOrbitDownKey		= 0.f;
+	mOrbitInKey			= 0.f;
+	mOrbitOutKey		= 0.f;
+
+	mPanRightKey		= 0.f;
+	mPanLeftKey			= 0.f;
+	mPanUpKey			= 0.f;
+	mPanDownKey			= 0.f;
+	mPanInKey			= 0.f;
+	mPanOutKey			= 0.f;
+
+	// lerp camera focus offset
+	mCameraFocusOffset = lerp(mCameraFocusOffset, mCameraFocusOffsetTarget, LLCriticalDamp::getInterpolant(CAMERA_FOCUS_HALF_LIFE));
+
+	//Ventrella
+	if ( mCameraMode == CAMERA_MODE_FOLLOW )
+	{
+		if (isAgentAvatarValid())
+		{
+			//--------------------------------------------------------------------------------
+			// this is where the avatar's position and rotation are given to followCam, and 
+			// where it is updated. All three of its attributes are updated: (1) position, 
+			// (2) focus, and (3) upvector. They can then be queried elsewhere in llAgent.
+			//--------------------------------------------------------------------------------
+			// *TODO: use combined rotation of frameagent and sit object
+			LLQuaternion avatarRotationForFollowCam = gAgentAvatarp->isSitting() ? gAgentAvatarp->getRenderRotation() : gAgent.getFrameAgent().getQuaternion();
+
+			LLFollowCamParams* current_cam = LLFollowCamMgr::getActiveFollowCamParams();
+			if (current_cam)
+			{
+				mFollowCam.copyParams(*current_cam);
+				mFollowCam.setSubjectPositionAndRotation( gAgentAvatarp->getRenderPosition(), avatarRotationForFollowCam );
+				mFollowCam.update();
+				LLViewerJoystick::getInstance()->setCameraNeedsUpdate(true);
+			}
+			else
+			{
+				changeCameraToThirdPerson(TRUE);
+			}
+		}
+	}
+	// end Ventrella
+
+	BOOL hit_limit;
+	LLVector3d camera_pos_global;
+	LLVector3d camera_target_global = calcCameraPositionTargetGlobal(&hit_limit);
+	mCameraVirtualPositionAgent = gAgent.getPosAgentFromGlobal(camera_target_global);
+	LLVector3d focus_target_global = calcFocusPositionTargetGlobal();
+
+	// perform field of view correction
+	mCameraFOVZoomFactor = calcCameraFOVZoomFactor();
+	camera_target_global = focus_target_global + (camera_target_global - focus_target_global) * (1.f + mCameraFOVZoomFactor);
+
+	gAgent.setShowAvatar(TRUE); // can see avatar by default
+
+	// Adjust position for animation
+	if (mCameraAnimating)
+	{
+		F32 time = mAnimationTimer.getElapsedTimeF32();
+
+		// yet another instance of critically damped motion, hooray!
+		// F32 fraction_of_animation = 1.f - pow(2.f, -time / CAMERA_ZOOM_HALF_LIFE);
+
+		// linear interpolation
+		F32 fraction_of_animation = time / mAnimationDuration;
+
+		BOOL isfirstPerson = mCameraMode == CAMERA_MODE_MOUSELOOK;
+		BOOL wasfirstPerson = mLastCameraMode == CAMERA_MODE_MOUSELOOK;
+		F32 fraction_animation_to_skip;
+
+		if (mAnimationCameraStartGlobal == camera_target_global)
+		{
+			fraction_animation_to_skip = 0.f;
+		}
+		else
+		{
+			LLVector3d cam_delta = mAnimationCameraStartGlobal - camera_target_global;
+			fraction_animation_to_skip = HEAD_BUFFER_SIZE / (F32)cam_delta.magVec();
+		}
+		F32 animation_start_fraction = (wasfirstPerson) ? fraction_animation_to_skip : 0.f;
+		F32 animation_finish_fraction =  (isfirstPerson) ? (1.f - fraction_animation_to_skip) : 1.f;
+	
+		if (fraction_of_animation < animation_finish_fraction)
+		{
+			if (fraction_of_animation < animation_start_fraction || fraction_of_animation > animation_finish_fraction )
+			{
+				gAgent.setShowAvatar(FALSE);
+			}
+
+			// ...adjust position for animation
+			F32 smooth_fraction_of_animation = llsmoothstep(0.0f, 1.0f, fraction_of_animation);
+			camera_pos_global = lerp(mAnimationCameraStartGlobal, camera_target_global, smooth_fraction_of_animation);
+			mFocusGlobal = lerp(mAnimationFocusStartGlobal, focus_target_global, smooth_fraction_of_animation);
+		}
+		else
+		{
+			// ...animation complete
+			mCameraAnimating = FALSE;
+
+			camera_pos_global = camera_target_global;
+			mFocusGlobal = focus_target_global;
+
+			gAgent.endAnimationUpdateUI();
+			gAgent.setShowAvatar(TRUE);
+		}
+
+		if (isAgentAvatarValid() && (mCameraMode != CAMERA_MODE_MOUSELOOK))
+		{
+			gAgentAvatarp->updateAttachmentVisibility(mCameraMode);
+		}
+	}
+	else 
+	{
+		camera_pos_global = camera_target_global;
+		mFocusGlobal = focus_target_global;
+		gAgent.setShowAvatar(TRUE);
+	}
+
+	// smoothing
+	if (TRUE)
+	{
+		LLVector3d agent_pos = gAgent.getPositionGlobal();
+		LLVector3d camera_pos_agent = camera_pos_global - agent_pos;
+		// Sitting on what you're manipulating can cause camera jitter with smoothing. 
+		// This turns off smoothing while editing. -MG
+		mCameraSmoothingStop |= (BOOL)LLToolMgr::getInstance()->inBuildMode();
+		
+		if (cameraThirdPerson() && !mCameraSmoothingStop)
+		{
+			const F32 SMOOTHING_HALF_LIFE = 0.02f;
+			
+			F32 smoothing = LLCriticalDamp::getInterpolant(gSavedSettings.getF32("CameraPositionSmoothing") * SMOOTHING_HALF_LIFE, FALSE);
+					
+			if (!mFocusObject)  // we differentiate on avatar mode 
+			{
+				// for avatar-relative focus, we smooth in avatar space -
+				// the avatar moves too jerkily w/r/t global space to smooth there.
+
+				LLVector3d delta = camera_pos_agent - mCameraSmoothingLastPositionAgent;
+				if (delta.magVec() < MAX_CAMERA_SMOOTH_DISTANCE)  // only smooth over short distances please
+				{
+					camera_pos_agent = lerp(mCameraSmoothingLastPositionAgent, camera_pos_agent, smoothing);
+					camera_pos_global = camera_pos_agent + agent_pos;
+				}
+			}
+			else
+			{
+				LLVector3d delta = camera_pos_global - mCameraSmoothingLastPositionGlobal;
+				if (delta.magVec() < MAX_CAMERA_SMOOTH_DISTANCE) // only smooth over short distances please
+				{
+					camera_pos_global = lerp(mCameraSmoothingLastPositionGlobal, camera_pos_global, smoothing);
+				}
+			}
+		}
+								 
+		mCameraSmoothingLastPositionGlobal = camera_pos_global;
+		mCameraSmoothingLastPositionAgent = camera_pos_agent;
+		mCameraSmoothingStop = FALSE;
+	}
+
+	
+	mCameraCurrentFOVZoomFactor = lerp(mCameraCurrentFOVZoomFactor, mCameraFOVZoomFactor, LLCriticalDamp::getInterpolant(FOV_ZOOM_HALF_LIFE));
+
+//	llinfos << "Current FOV Zoom: " << mCameraCurrentFOVZoomFactor << " Target FOV Zoom: " << mCameraFOVZoomFactor << " Object penetration: " << mFocusObjectDist << llendl;
+
+	F32 ui_offset = 0.f;
+	if( CAMERA_MODE_CUSTOMIZE_AVATAR == mCameraMode ) 
+	{
+		ui_offset = calcCustomizeAvatarUIOffset( camera_pos_global );
+	}
+
+
+	LLVector3 focus_agent = gAgent.getPosAgentFromGlobal(mFocusGlobal);
+	
+	mCameraPositionAgent = gAgent.getPosAgentFromGlobal(camera_pos_global);
+
+	// Move the camera
+
+	//Ventrella
+	LLViewerCamera::getInstance()->updateCameraLocation(mCameraPositionAgent, mCameraUpVector, focus_agent);
+	//LLViewerCamera::getInstance()->updateCameraLocation(mCameraPositionAgent, camera_skyward, focus_agent);
+	//end Ventrella
+
+	//RN: translate UI offset after camera is oriented properly
+	LLViewerCamera::getInstance()->translate(LLViewerCamera::getInstance()->getLeftAxis() * ui_offset);
+	
+	// Change FOV
+	LLViewerCamera::getInstance()->setView(LLViewerCamera::getInstance()->getDefaultFOV() / (1.f + mCameraCurrentFOVZoomFactor));
+
+	// follow camera when in customize mode
+	if (cameraCustomizeAvatar())	
+	{
+		setLookAt(LOOKAT_TARGET_FOCUS, NULL, mCameraPositionAgent);
+	}
+
+	// update the travel distance stat
+	// this isn't directly related to the camera
+	// but this seemed like the best place to do this
+	LLVector3d global_pos = gAgent.getPositionGlobal(); 
+	if (!gAgent.getLastPositionGlobal().isExactlyZero())
+	{
+		LLVector3d delta = global_pos - gAgent.getLastPositionGlobal();
+		gAgent.setDistanceTraveled(gAgent.getDistanceTraveled() + delta.magVec());
+	}
+	gAgent.setLastPositionGlobal(global_pos);
+	
+	if (LLVOAvatar::sVisibleInFirstPerson && isAgentAvatarValid() && !gAgentAvatarp->isSitting() && cameraMouselook())
+	{
+		LLVector3 head_pos = gAgentAvatarp->mHeadp->getWorldPosition() + 
+			LLVector3(0.08f, 0.f, 0.05f) * gAgentAvatarp->mHeadp->getWorldRotation() + 
+			LLVector3(0.1f, 0.f, 0.f) * gAgentAvatarp->mPelvisp->getWorldRotation();
+		LLVector3 diff = mCameraPositionAgent - head_pos;
+		diff = diff * ~gAgentAvatarp->mRoot.getWorldRotation();
+
+		LLJoint* torso_joint = gAgentAvatarp->mTorsop;
+		LLJoint* chest_joint = gAgentAvatarp->mChestp;
+		LLVector3 torso_scale = torso_joint->getScale();
+		LLVector3 chest_scale = chest_joint->getScale();
+
+		// shorten avatar skeleton to avoid foot interpenetration
+		if (!gAgentAvatarp->mInAir)
+		{
+			LLVector3 chest_offset = LLVector3(0.f, 0.f, chest_joint->getPosition().mV[VZ]) * torso_joint->getWorldRotation();
+			F32 z_compensate = llclamp(-diff.mV[VZ], -0.2f, 1.f);
+			F32 scale_factor = llclamp(1.f - ((z_compensate * 0.5f) / chest_offset.mV[VZ]), 0.5f, 1.2f);
+			torso_joint->setScale(LLVector3(1.f, 1.f, scale_factor));
+
+			LLJoint* neck_joint = gAgentAvatarp->mNeckp;
+			LLVector3 neck_offset = LLVector3(0.f, 0.f, neck_joint->getPosition().mV[VZ]) * chest_joint->getWorldRotation();
+			scale_factor = llclamp(1.f - ((z_compensate * 0.5f) / neck_offset.mV[VZ]), 0.5f, 1.2f);
+			chest_joint->setScale(LLVector3(1.f, 1.f, scale_factor));
+			diff.mV[VZ] = 0.f;
+		}
+
+		gAgentAvatarp->mPelvisp->setPosition(gAgentAvatarp->mPelvisp->getPosition() + diff);
+
+		gAgentAvatarp->mRoot.updateWorldMatrixChildren();
+
+		for (LLVOAvatar::attachment_map_t::iterator iter = gAgentAvatarp->mAttachmentPoints.begin(); 
+			 iter != gAgentAvatarp->mAttachmentPoints.end(); )
+		{
+			LLVOAvatar::attachment_map_t::iterator curiter = iter++;
+			LLViewerJointAttachment* attachment = curiter->second;
+			for (LLViewerJointAttachment::attachedobjs_vec_t::iterator attachment_iter = attachment->mAttachedObjects.begin();
+				 attachment_iter != attachment->mAttachedObjects.end();
+				 ++attachment_iter)
+			{
+				LLViewerObject *attached_object = (*attachment_iter);
+				if (attached_object && !attached_object->isDead() && attached_object->mDrawable.notNull())
+				{
+					// clear any existing "early" movements of attachment
+					attached_object->mDrawable->clearState(LLDrawable::EARLY_MOVE);
+					gPipeline.updateMoveNormalAsync(attached_object->mDrawable);
+					attached_object->updateText();
+				}
+			}
+		}
+
+		torso_joint->setScale(torso_scale);
+		chest_joint->setScale(chest_scale);
+	}
+}
+
+void LLAgentCamera::updateLastCamera()
+{
+	mLastCameraMode = mCameraMode;
+}
+
+void LLAgentCamera::updateFocusOffset()
+{
+	validateFocusObject();
+	if (mFocusObject.notNull())
+	{
+		LLVector3d obj_pos = gAgent.getPosGlobalFromAgent(mFocusObject->getRenderPosition());
+		mFocusObjectOffset.setVec(mFocusTargetGlobal - obj_pos);
+	}
+}
+
+void LLAgentCamera::validateFocusObject()
+{
+	if (mFocusObject.notNull() && 
+		mFocusObject->isDead())
+	{
+		mFocusObjectOffset.clearVec();
+		clearFocusObject();
+		mCameraFOVZoomFactor = 0.f;
+	}
+}
+
+//-----------------------------------------------------------------------------
+// calcCustomizeAvatarUIOffset()
+//-----------------------------------------------------------------------------
+F32 LLAgentCamera::calcCustomizeAvatarUIOffset(const LLVector3d& camera_pos_global)
+{
+	F32 ui_offset = 0.f;
+
+	if (gFloaterCustomize)
+	{
+		const LLRect& rect = gFloaterCustomize->getRect();
+
+		// Move the camera so that the avatar isn't covered up by this floater.
+		F32 fraction_of_fov = 0.5f - (0.5f * (1.f - llmin(1.f, ((F32)rect.getWidth() / (F32)gViewerWindow->getWindowWidthScaled()))));
+		F32 apparent_angle = fraction_of_fov * LLViewerCamera::getInstance()->getView() * LLViewerCamera::getInstance()->getAspect();  // radians
+		F32 offset = tan(apparent_angle);
+
+		if( rect.mLeft < (gViewerWindow->getWindowWidthScaled() - rect.mRight) )
+		{
+			// Move the avatar to the right (camera to the left)
+			ui_offset = offset;
+		}
+		else
+		{
+			// Move the avatar to the left (camera to the right)
+			ui_offset = -offset;
+		}
+	}
+	F32 range = (F32)dist_vec(camera_pos_global, getFocusGlobal());
+	mUIOffset = lerp(mUIOffset, ui_offset, LLCriticalDamp::getInterpolant(0.05f));
+	return mUIOffset * range;
+}
+
+//-----------------------------------------------------------------------------
+// calcFocusPositionTargetGlobal()
+//-----------------------------------------------------------------------------
+LLVector3d LLAgentCamera::calcFocusPositionTargetGlobal()
+{
+	if (mFocusObject.notNull() && mFocusObject->isDead())
+	{
+		clearFocusObject();
+	}
+
+	// Ventrella
+	if (mCameraMode == CAMERA_MODE_FOLLOW && mFocusOnAvatar)
+	{
+		mFocusTargetGlobal = gAgent.getPosGlobalFromAgent(mFollowCam.getSimulatedFocus());
+		return mFocusTargetGlobal;
+	}// End Ventrella 
+	else if (mCameraMode == CAMERA_MODE_MOUSELOOK)
+	{
+		LLVector3d at_axis(1.0, 0.0, 0.0);
+		LLQuaternion agent_rot = gAgent.getFrameAgent().getQuaternion();
+		if (isAgentAvatarValid() && gAgentAvatarp->getParent())
+		{
+			LLViewerObject* root_object = (LLViewerObject*)gAgentAvatarp->getRoot();
+			if (!root_object->flagCameraDecoupled())
+			{
+				agent_rot *= ((LLViewerObject*)(gAgentAvatarp->getParent()))->getRenderRotation();
+			}
+		}
+		at_axis = at_axis * agent_rot;
+		mFocusTargetGlobal = calcCameraPositionTargetGlobal() + at_axis;
+		return mFocusTargetGlobal;
+	}
+	else if (mCameraMode == CAMERA_MODE_CUSTOMIZE_AVATAR)
+	{
+		return mFocusTargetGlobal;
+	}
+	else if (!mFocusOnAvatar)
+	{
+		if (mFocusObject.notNull() && !mFocusObject->isDead() && mFocusObject->mDrawable.notNull())
+		{
+			LLDrawable* drawablep = mFocusObject->mDrawable;
+			
+			if (mTrackFocusObject &&
+				drawablep && 
+				drawablep->isActive())
+			{
+				if (!mFocusObject->isAvatar())
+				{
+					if (mFocusObject->isSelected())
+					{
+						gPipeline.updateMoveNormalAsync(drawablep);
+					}
+					else
+					{
+						if (drawablep->isState(LLDrawable::MOVE_UNDAMPED))
+						{
+							gPipeline.updateMoveNormalAsync(drawablep);
+						}
+						else
+						{
+							gPipeline.updateMoveDampedAsync(drawablep);
+						}
+					}
+				}
+			}
+			// if not tracking object, update offset based on new object position
+			else
+			{
+				updateFocusOffset();
+			}
+			LLVector3 focus_agent = mFocusObject->getRenderPosition() + mFocusObjectOffset;
+			mFocusTargetGlobal.setVec(gAgent.getPosGlobalFromAgent(focus_agent));
+		}
+		return mFocusTargetGlobal;
+	}
+	else if (mSitCameraEnabled && isAgentAvatarValid() && gAgentAvatarp->isSitting() && mSitCameraReferenceObject.notNull())
+	{
+		// sit camera
+		LLVector3 object_pos = mSitCameraReferenceObject->getRenderPosition();
+		LLQuaternion object_rot = mSitCameraReferenceObject->getRenderRotation();
+
+		LLVector3 target_pos = object_pos + (mSitCameraFocus * object_rot);
+		return gAgent.getPosGlobalFromAgent(target_pos);
+	}
+	else
+	{
+		return gAgent.getPositionGlobal() + calcThirdPersonFocusOffset();
+	}
+}
+
+LLVector3d LLAgentCamera::calcThirdPersonFocusOffset()
+{
+	// ...offset from avatar
+	LLVector3d focus_offset;
+	LLQuaternion agent_rot = gAgent.getFrameAgent().getQuaternion();
+	if (isAgentAvatarValid() && gAgentAvatarp->getParent())
+	{
+		agent_rot *= ((LLViewerObject*)(gAgentAvatarp->getParent()))->getRenderRotation();
+	}
+
+	focus_offset = mFocusOffsetInitial[mCameraPreset] * agent_rot;
+	return focus_offset;
+}
+
+void LLAgentCamera::setupSitCamera()
+{
+	// agent frame entering this function is in world coordinates
+	if (isAgentAvatarValid() && gAgentAvatarp->getParent())
+	{
+		LLQuaternion parent_rot = ((LLViewerObject*)gAgentAvatarp->getParent())->getRenderRotation();
+		// slam agent coordinate frame to proper parent local version
+		LLVector3 at_axis = gAgent.getFrameAgent().getAtAxis();
+		at_axis.mV[VZ] = 0.f;
+		at_axis.normalize();
+		gAgent.resetAxes(at_axis * ~parent_rot);
+	}
+}
+
+//-----------------------------------------------------------------------------
+// getCameraPositionAgent()
+//-----------------------------------------------------------------------------
+const LLVector3 &LLAgentCamera::getCameraPositionAgent() const
+{
+	return LLViewerCamera::getInstance()->getOrigin();
+}
+
+//-----------------------------------------------------------------------------
+// getCameraPositionGlobal()
+//-----------------------------------------------------------------------------
+LLVector3d LLAgentCamera::getCameraPositionGlobal() const
+{
+	return gAgent.getPosGlobalFromAgent(LLViewerCamera::getInstance()->getOrigin());
+}
+
+//-----------------------------------------------------------------------------
+// calcCameraFOVZoomFactor()
+//-----------------------------------------------------------------------------
+F32	LLAgentCamera::calcCameraFOVZoomFactor()
+{
+	LLVector3 camera_offset_dir;
+	camera_offset_dir.setVec(mCameraFocusOffset);
+
+	if (mCameraMode == CAMERA_MODE_MOUSELOOK)
+	{
+		return 0.f;
+	}
+	else if (mFocusObject.notNull() && !mFocusObject->isAvatar() && !mFocusOnAvatar)
+	{
+		// don't FOV zoom on mostly transparent objects
+		LLVector3 focus_offset = mFocusObjectOffset;
+		F32 obj_min_dist = 0.f;
+		calcCameraMinDistance(obj_min_dist);
+		F32 current_distance = llmax(0.001f, camera_offset_dir.magVec());
+
+		mFocusObjectDist = obj_min_dist - current_distance;
+
+		F32 new_fov_zoom = llclamp(mFocusObjectDist / current_distance, 0.f, 1000.f);
+		return new_fov_zoom;
+	}
+	else // focusing on land or avatar
+	{
+		// keep old field of view until user changes focus explicitly
+		return mCameraFOVZoomFactor;
+		//return 0.f;
+	}
+}
+
+//-----------------------------------------------------------------------------
+// calcCameraPositionTargetGlobal()
+//-----------------------------------------------------------------------------
+LLVector3d LLAgentCamera::calcCameraPositionTargetGlobal(BOOL *hit_limit)
+{
+	// Compute base camera position and look-at points.
+	F32			camera_land_height;
+	LLVector3d	frame_center_global = !isAgentAvatarValid() ? 
+		gAgent.getPositionGlobal() :
+		gAgent.getPosGlobalFromAgent(gAgentAvatarp->mRoot.getWorldPosition());
+	
+	BOOL		isConstrained = FALSE;
+	LLVector3d	head_offset;
+	head_offset.setVec(mThirdPersonHeadOffset);
+
+	LLVector3d camera_position_global;
+
+	// Ventrella 
+	if (mCameraMode == CAMERA_MODE_FOLLOW && mFocusOnAvatar)
+	{
+		camera_position_global = gAgent.getPosGlobalFromAgent(mFollowCam.getSimulatedPosition());
+	}// End Ventrella
+	else if (mCameraMode == CAMERA_MODE_MOUSELOOK)
+	{
+		if (!isAgentAvatarValid() || gAgentAvatarp->mDrawable.isNull())
+		{
+			llwarns << "Null avatar drawable!" << llendl;
+			return LLVector3d::zero;
+		}
+		head_offset.clearVec();
+		if (gAgentAvatarp->isSitting() && gAgentAvatarp->getParent())
+		{
+			gAgentAvatarp->updateHeadOffset();
+			head_offset.mdV[VX] = gAgentAvatarp->mHeadOffset.mV[VX];
+			head_offset.mdV[VY] = gAgentAvatarp->mHeadOffset.mV[VY];
+			head_offset.mdV[VZ] = gAgentAvatarp->mHeadOffset.mV[VZ] + 0.1f;
+			const LLMatrix4& mat = ((LLViewerObject*) gAgentAvatarp->getParent())->getRenderMatrix();
+			camera_position_global = gAgent.getPosGlobalFromAgent
+								((gAgentAvatarp->getPosition()+
+								 LLVector3(head_offset)*gAgentAvatarp->getRotation()) * mat);
+		}
+		else
+		{
+			head_offset.mdV[VZ] = gAgentAvatarp->mHeadOffset.mV[VZ];
+			if (gAgentAvatarp->isSitting())
+			{
+				head_offset.mdV[VZ] += 0.1;
+			}
+			camera_position_global = gAgent.getPosGlobalFromAgent(gAgentAvatarp->getRenderPosition());//frame_center_global;
+			head_offset = head_offset * gAgentAvatarp->getRenderRotation();
+			camera_position_global = camera_position_global + head_offset;
+		}
+	}
+	else if (mCameraMode == CAMERA_MODE_THIRD_PERSON && mFocusOnAvatar)
+	{
+		LLVector3 local_camera_offset;
+		F32 camera_distance = 0.f;
+
+		if (mSitCameraEnabled 
+			&& isAgentAvatarValid() 
+			&& gAgentAvatarp->isSitting() 
+			&& mSitCameraReferenceObject.notNull())
+		{
+			// sit camera
+			LLVector3 object_pos = mSitCameraReferenceObject->getRenderPosition();
+			LLQuaternion object_rot = mSitCameraReferenceObject->getRenderRotation();
+
+			LLVector3 target_pos = object_pos + (mSitCameraPos * object_rot);
+
+			camera_position_global = gAgent.getPosGlobalFromAgent(target_pos);
+		}
+		else
+		{
+			local_camera_offset = mCameraZoomFraction * getCameraOffsetInitial() * gSavedSettings.getF32("CameraOffsetScale");
+			
+			// are we sitting down?
+			if (isAgentAvatarValid() && gAgentAvatarp->getParent())
+			{
+				LLQuaternion parent_rot = ((LLViewerObject*)gAgentAvatarp->getParent())->getRenderRotation();
+				// slam agent coordinate frame to proper parent local version
+				LLVector3 at_axis = gAgent.getFrameAgent().getAtAxis() * parent_rot;
+				at_axis.mV[VZ] = 0.f;
+				at_axis.normalize();
+				gAgent.resetAxes(at_axis * ~parent_rot);
+
+				local_camera_offset = local_camera_offset * gAgent.getFrameAgent().getQuaternion() * parent_rot;
+			}
+			else
+			{
+				local_camera_offset = gAgent.getFrameAgent().rotateToAbsolute( local_camera_offset );
+			}
+
+			if (!mCameraCollidePlane.isExactlyZero() && (!isAgentAvatarValid() || !gAgentAvatarp->isSitting()))
+			{
+				LLVector3 plane_normal;
+				plane_normal.setVec(mCameraCollidePlane.mV);
+
+				F32 offset_dot_norm = local_camera_offset * plane_normal;
+				if (llabs(offset_dot_norm) < 0.001f)
+				{
+					offset_dot_norm = 0.001f;
+				}
+				
+				camera_distance = local_camera_offset.normalize();
+
+				F32 pos_dot_norm = gAgent.getPosAgentFromGlobal(frame_center_global + head_offset) * plane_normal;
+				
+				// if agent is outside the colliding half-plane
+				if (pos_dot_norm > mCameraCollidePlane.mV[VW])
+				{
+					// check to see if camera is on the opposite side (inside) the half-plane
+					if (offset_dot_norm + pos_dot_norm < mCameraCollidePlane.mV[VW])
+					{
+						// diminish offset by factor to push it back outside the half-plane
+						camera_distance *= (pos_dot_norm - mCameraCollidePlane.mV[VW] - CAMERA_COLLIDE_EPSILON) / -offset_dot_norm;
+					}
+				}
+				else
+				{
+					if (offset_dot_norm + pos_dot_norm > mCameraCollidePlane.mV[VW])
+					{
+						camera_distance *= (mCameraCollidePlane.mV[VW] - pos_dot_norm - CAMERA_COLLIDE_EPSILON) / offset_dot_norm;
+					}
+				}
+			}
+			else
+			{
+				camera_distance = local_camera_offset.normalize();
+			}
+
+			mTargetCameraDistance = llmax(camera_distance, MIN_CAMERA_DISTANCE);
+
+			if (mTargetCameraDistance != mCurrentCameraDistance)
+			{
+				F32 camera_lerp_amt = LLCriticalDamp::getInterpolant(CAMERA_ZOOM_HALF_LIFE);
+
+				mCurrentCameraDistance = lerp(mCurrentCameraDistance, mTargetCameraDistance, camera_lerp_amt);
+			}
+
+			// Make the camera distance current
+			local_camera_offset *= mCurrentCameraDistance;
+
+			// set the global camera position
+			LLVector3d camera_offset;
+			
+			LLVector3 av_pos = !isAgentAvatarValid() ? LLVector3::zero : gAgentAvatarp->getRenderPosition();
+			camera_offset.setVec( local_camera_offset );
+			camera_position_global = frame_center_global + head_offset + camera_offset;
+
+			if (isAgentAvatarValid())
+			{
+				LLVector3d camera_lag_d;
+				F32 lag_interp = LLCriticalDamp::getInterpolant(CAMERA_LAG_HALF_LIFE);
+				LLVector3 target_lag;
+				LLVector3 vel = gAgent.getVelocity();
+
+				// lag by appropriate amount for flying
+				F32 time_in_air = gAgentAvatarp->mTimeInAir.getElapsedTimeF32();
+				if(!mCameraAnimating && gAgentAvatarp->mInAir && time_in_air > GROUND_TO_AIR_CAMERA_TRANSITION_START_TIME)
+				{
+					LLVector3 frame_at_axis = gAgent.getFrameAgent().getAtAxis();
+					frame_at_axis -= projected_vec(frame_at_axis, gAgent.getReferenceUpVector());
+					frame_at_axis.normalize();
+
+					//transition smoothly in air mode, to avoid camera pop
+					F32 u = (time_in_air - GROUND_TO_AIR_CAMERA_TRANSITION_START_TIME) / GROUND_TO_AIR_CAMERA_TRANSITION_TIME;
+					u = llclamp(u, 0.f, 1.f);
+
+					lag_interp *= u;
+
+					if (gViewerWindow->getLeftMouseDown() && gViewerWindow->getLastPick().mObjectID == gAgentAvatarp->getID())
+					{
+						// disable camera lag when using mouse-directed steering
+						target_lag.clearVec();
+					}
+					else
+					{
+						target_lag = vel * gSavedSettings.getF32("DynamicCameraStrength") / 30.f;
+					}
+
+					mCameraLag = lerp(mCameraLag, target_lag, lag_interp);
+
+					F32 lag_dist = mCameraLag.magVec();
+					if (lag_dist > MAX_CAMERA_LAG)
+					{
+						mCameraLag = mCameraLag * MAX_CAMERA_LAG / lag_dist;
+					}
+
+					// clamp camera lag so that avatar is always in front
+					F32 dot = (mCameraLag - (frame_at_axis * (MIN_CAMERA_LAG * u))) * frame_at_axis;
+					if (dot < -(MIN_CAMERA_LAG * u))
+					{
+						mCameraLag -= (dot + (MIN_CAMERA_LAG * u)) * frame_at_axis;
+					}
+				}
+				else
+				{
+					mCameraLag = lerp(mCameraLag, LLVector3::zero, LLCriticalDamp::getInterpolant(0.15f));
+				}
+
+				camera_lag_d.setVec(mCameraLag);
+				camera_position_global = camera_position_global - camera_lag_d;
+			}
+		}
+	}
+	else
+	{
+		LLVector3d focusPosGlobal = calcFocusPositionTargetGlobal();
+		// camera gets pushed out later wrt mCameraFOVZoomFactor...this is "raw" value
+		camera_position_global = focusPosGlobal + mCameraFocusOffset;
+	}
+
+	if (!gSavedSettings.getBOOL("DisableCameraConstraints") && !gAgent.isGodlike())
+	{
+		LLViewerRegion* regionp = LLWorld::getInstance()->getRegionFromPosGlobal(camera_position_global);
+		bool constrain = true;
+		if(regionp && regionp->canManageEstate())
+		{
+			constrain = false;
+		}
+		if(constrain)
+		{
+			F32 max_dist = (CAMERA_MODE_CUSTOMIZE_AVATAR == mCameraMode) ? APPEARANCE_MAX_ZOOM : mDrawDistance;
+
+			LLVector3d camera_offset = camera_position_global - gAgent.getPositionGlobal();
+			F32 camera_distance = (F32)camera_offset.magVec();
+
+			if(camera_distance > max_dist)
+			{
+				camera_position_global = gAgent.getPositionGlobal() + (max_dist/camera_distance)*camera_offset;
+				isConstrained = TRUE;
+			}
+		}
+
+// JC - Could constrain camera based on parcel stuff here.
+//			LLViewerRegion *regionp = LLWorld::getInstance()->getRegionFromPosGlobal(camera_position_global);
+//			
+//			if (regionp && !regionp->mParcelOverlay->isBuildCameraAllowed(regionp->getPosRegionFromGlobal(camera_position_global)))
+//			{
+//				camera_position_global = last_position_global;
+//
+//				isConstrained = TRUE;
+//			}
+	}
+
+	// Don't let camera go underground
+	F32 camera_min_off_ground = getCameraMinOffGround();
+
+	camera_land_height = LLWorld::getInstance()->resolveLandHeightGlobal(camera_position_global);
+
+	if (camera_position_global.mdV[VZ] < camera_land_height + camera_min_off_ground)
+	{
+		camera_position_global.mdV[VZ] = camera_land_height + camera_min_off_ground;
+		isConstrained = TRUE;
+	}
+
+
+	if (hit_limit)
+	{
+		*hit_limit = isConstrained;
+	}
+
+	return camera_position_global;
+}
+
+
+LLVector3 LLAgentCamera::getCameraOffsetInitial()
+{
+	return mCameraOffsetInitial[mCameraPreset];
+}
+
+
+//-----------------------------------------------------------------------------
+// handleScrollWheel()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::handleScrollWheel(S32 clicks)
+{
+	if (mCameraMode == CAMERA_MODE_FOLLOW && getFocusOnAvatar())
+	{
+		if (!mFollowCam.getPositionLocked()) // not if the followCam position is locked in place
+		{
+			mFollowCam.zoom(clicks); 
+			if (mFollowCam.isZoomedToMinimumDistance())
+			{
+				changeCameraToMouselook(FALSE);
+			}
+		}
+	}
+	else
+	{
+		LLObjectSelectionHandle selection = LLSelectMgr::getInstance()->getSelection();
+		const F32 ROOT_ROOT_TWO = sqrt(F_SQRT2);
+
+		// Block if camera is animating
+		if (mCameraAnimating)
+		{
+			return;
+		}
+
+		if (selection->getObjectCount() && selection->getSelectType() == SELECT_TYPE_HUD)
+		{
+			F32 zoom_factor = (F32)pow(0.8, -clicks);
+			cameraZoomIn(zoom_factor);
+		}
+		else if (mFocusOnAvatar && (mCameraMode == CAMERA_MODE_THIRD_PERSON))
+		{
+			F32 camera_offset_initial_mag = getCameraOffsetInitial().magVec();
+			
+			F32 current_zoom_fraction = mTargetCameraDistance / (camera_offset_initial_mag * gSavedSettings.getF32("CameraOffsetScale"));
+			current_zoom_fraction *= 1.f - pow(ROOT_ROOT_TWO, clicks);
+			
+			cameraOrbitIn(current_zoom_fraction * camera_offset_initial_mag * gSavedSettings.getF32("CameraOffsetScale"));
+		}
+		else
+		{
+			F32 current_zoom_fraction = (F32)mCameraFocusOffsetTarget.magVec();
+			cameraOrbitIn(current_zoom_fraction * (1.f - pow(ROOT_ROOT_TWO, clicks)));
+		}
+	}
+}
+
+
+//-----------------------------------------------------------------------------
+// getCameraMinOffGround()
+//-----------------------------------------------------------------------------
+F32 LLAgentCamera::getCameraMinOffGround()
+{
+	if (mCameraMode == CAMERA_MODE_MOUSELOOK)
+	{
+		return 0.f;
+	}
+	else
+	{
+		if (gSavedSettings.getBOOL("DisableCameraConstraints"))
+		{
+			return -1000.f;
+		}
+		else
+		{
+			return 0.5f;
+		}
+	}
+}
+
+
+//-----------------------------------------------------------------------------
+// resetCamera()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::resetCamera()
+{
+	// Remove any pitch from the avatar
+	LLVector3 at = gAgent.getFrameAgent().getAtAxis();
+	at.mV[VZ] = 0.f;
+	at.normalize();
+	gAgent.resetAxes(at);
+	// have to explicitly clear field of view zoom now
+	mCameraFOVZoomFactor = 0.f;
+
+	updateCamera();
+}
+
+//-----------------------------------------------------------------------------
+// changeCameraToMouselook()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::changeCameraToMouselook(BOOL animate)
+{
+	if (LLViewerJoystick::getInstance()->getOverrideCamera())
+	{
+		return;
+	}
+
+	// visibility changes at end of animation
+	gViewerWindow->getWindow()->resetBusyCount();
+
+	// unpause avatar animation
+	gAgent.unpauseAnimation();
+
+	LLToolMgr::getInstance()->setCurrentToolset(gMouselookToolset);
+
+	if (isAgentAvatarValid())
+	{
+		gAgentAvatarp->stopMotion(ANIM_AGENT_BODY_NOISE);
+		gAgentAvatarp->stopMotion(ANIM_AGENT_BREATHE_ROT);
+	}
+
+	//gViewerWindow->stopGrab();
+	LLSelectMgr::getInstance()->deselectAll();
+	gViewerWindow->hideCursor();
+	gViewerWindow->moveCursorToCenter();
+
+	if (mCameraMode != CAMERA_MODE_MOUSELOOK)
+	{
+		gFocusMgr.setKeyboardFocus(NULL);
+		
+		updateLastCamera();
+		mCameraMode = CAMERA_MODE_MOUSELOOK;
+		const U32 old_flags = gAgent.getControlFlags();
+		gAgent.setControlFlags(AGENT_CONTROL_MOUSELOOK);
+		if (old_flags != gAgent.getControlFlags())
+		{
+			gAgent.setFlagsDirty();
+		}
+
+		if (animate)
+		{
+			startCameraAnimation();
+		}
+		else
+		{
+			mCameraAnimating = FALSE;
+			gAgent.endAnimationUpdateUI();
+		}
+	}
+}
+
+
+//-----------------------------------------------------------------------------
+// changeCameraToDefault()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::changeCameraToDefault()
+{
+	if (LLViewerJoystick::getInstance()->getOverrideCamera())
+	{
+		return;
+	}
+
+	if (LLFollowCamMgr::getActiveFollowCamParams())
+	{
+		changeCameraToFollow();
+	}
+	else
+	{
+		changeCameraToThirdPerson();
+	}
+}
+
+
+// Ventrella
+//-----------------------------------------------------------------------------
+// changeCameraToFollow()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::changeCameraToFollow(BOOL animate)
+{
+	if (LLViewerJoystick::getInstance()->getOverrideCamera())
+	{
+		return;
+	}
+
+	if(mCameraMode != CAMERA_MODE_FOLLOW)
+	{
+		if (mCameraMode == CAMERA_MODE_MOUSELOOK)
+		{
+			animate = FALSE;
+		}
+		startCameraAnimation();
+
+		updateLastCamera();
+		mCameraMode = CAMERA_MODE_FOLLOW;
+
+		// bang-in the current focus, position, and up vector of the follow cam
+		mFollowCam.reset(mCameraPositionAgent, LLViewerCamera::getInstance()->getPointOfInterest(), LLVector3::z_axis);
+		
+		if (gBasicToolset)
+		{
+			LLToolMgr::getInstance()->setCurrentToolset(gBasicToolset);
+		}
+
+		if (isAgentAvatarValid())
+		{
+			gAgentAvatarp->mPelvisp->setPosition(LLVector3::zero);
+			gAgentAvatarp->startMotion( ANIM_AGENT_BODY_NOISE );
+			gAgentAvatarp->startMotion( ANIM_AGENT_BREATHE_ROT );
+		}
+
+		// unpause avatar animation
+		gAgent.unpauseAnimation();
+
+		const U32 old_flags = gAgent.getControlFlags();
+		gAgent.clearControlFlags(AGENT_CONTROL_MOUSELOOK);
+		if (old_flags != gAgent.getControlFlags())
+		{
+			gAgent.setFlagsDirty();
+		}
+
+		if (animate)
+		{
+			startCameraAnimation();
+		}
+		else
+		{
+			mCameraAnimating = FALSE;
+			gAgent.endAnimationUpdateUI();
+		}
+	}
+}
+
+//-----------------------------------------------------------------------------
+// changeCameraToThirdPerson()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::changeCameraToThirdPerson(BOOL animate)
+{
+	if (LLViewerJoystick::getInstance()->getOverrideCamera())
+	{
+		return;
+	}
+
+	gViewerWindow->getWindow()->resetBusyCount();
+
+	mCameraZoomFraction = INITIAL_ZOOM_FRACTION;
+
+	if (isAgentAvatarValid())
+	{
+		if (!gAgentAvatarp->isSitting())
+		{
+			gAgentAvatarp->mPelvisp->setPosition(LLVector3::zero);
+		}
+		gAgentAvatarp->startMotion(ANIM_AGENT_BODY_NOISE);
+		gAgentAvatarp->startMotion(ANIM_AGENT_BREATHE_ROT);
+	}
+
+	LLVector3 at_axis;
+
+	// unpause avatar animation
+	gAgent.unpauseAnimation();
+
+	if (mCameraMode != CAMERA_MODE_THIRD_PERSON)
+	{
+		if (gBasicToolset)
+		{
+			LLToolMgr::getInstance()->setCurrentToolset(gBasicToolset);
+		}
+
+		mCameraLag.clearVec();
+		if (mCameraMode == CAMERA_MODE_MOUSELOOK)
+		{
+			mCurrentCameraDistance = MIN_CAMERA_DISTANCE;
+			mTargetCameraDistance = MIN_CAMERA_DISTANCE;
+			animate = FALSE;
+		}
+		updateLastCamera();
+		mCameraMode = CAMERA_MODE_THIRD_PERSON;
+		const U32 old_flags = gAgent.getControlFlags();
+		gAgent.clearControlFlags(AGENT_CONTROL_MOUSELOOK);
+		if (old_flags != gAgent.getControlFlags())
+		{
+			gAgent.setFlagsDirty();
+		}
+
+	}
+
+	// Remove any pitch from the avatar
+	if (isAgentAvatarValid() && gAgentAvatarp->getParent())
+	{
+		LLQuaternion obj_rot = ((LLViewerObject*)gAgentAvatarp->getParent())->getRenderRotation();
+		at_axis = LLViewerCamera::getInstance()->getAtAxis();
+		at_axis.mV[VZ] = 0.f;
+		at_axis.normalize();
+		gAgent.resetAxes(at_axis * ~obj_rot);
+	}
+	else
+	{
+		at_axis = gAgent.getFrameAgent().getAtAxis();
+		at_axis.mV[VZ] = 0.f;
+		at_axis.normalize();
+		gAgent.resetAxes(at_axis);
+	}
+
+
+	if (animate)
+	{
+		startCameraAnimation();
+	}
+	else
+	{
+		mCameraAnimating = FALSE;
+		gAgent.endAnimationUpdateUI();
+	}
+}
+
+//-----------------------------------------------------------------------------
+// changeCameraToCustomizeAvatar()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::changeCameraToCustomizeAvatar(BOOL avatar_animate, BOOL camera_animate)
+{
+	if (LLViewerJoystick::getInstance()->getOverrideCamera())
+	{
+		return;
+	}
+
+	gAgent.standUp(); // force stand up
+	gViewerWindow->getWindow()->resetBusyCount();
+
+	if (gFaceEditToolset)
+	{
+		LLToolMgr::getInstance()->setCurrentToolset(gFaceEditToolset);
+	}
+
+	if (camera_animate)
+	{
+		startCameraAnimation();
+	}
+
+	// Remove any pitch from the avatar
+	//LLVector3 at = gAgent.getFrameAgent().getAtAxis();
+	//at.mV[VZ] = 0.f;
+	//at.normalize();
+	//gAgent.resetAxes(at);
+
+	if (mCameraMode != CAMERA_MODE_CUSTOMIZE_AVATAR)
+	{
+		updateLastCamera();
+		mCameraMode = CAMERA_MODE_CUSTOMIZE_AVATAR;
+		const U32 old_flags = gAgent.getControlFlags();
+		gAgent.clearControlFlags(AGENT_CONTROL_MOUSELOOK);
+		if (old_flags != gAgent.getControlFlags())
+		{
+			gAgent.setFlagsDirty();
+		}
+
+		gFocusMgr.setKeyboardFocus( NULL );
+		gFocusMgr.setMouseCapture( NULL );
+
+		LLVOAvatarSelf::onCustomizeStart();
+	}
+
+	if (isAgentAvatarValid())
+	{
+		if(avatar_animate)
+		{
+			// Remove any pitch from the avatar
+			LLVector3 at = gAgent.getFrameAgent().getAtAxis();
+			at.mV[VZ] = 0.f;
+			at.normalize();
+			gAgent.resetAxes(at);
+
+			gAgent.sendAnimationRequest(ANIM_AGENT_CUSTOMIZE, ANIM_REQUEST_START);
+			gAgent.setCustomAnim(TRUE);
+			gAgentAvatarp->startMotion(ANIM_AGENT_CUSTOMIZE);
+			LLMotion* turn_motion = gAgentAvatarp->findMotion(ANIM_AGENT_CUSTOMIZE);
+
+			if (turn_motion)
+			{
+				mAnimationDuration = turn_motion->getDuration() + CUSTOMIZE_AVATAR_CAMERA_ANIM_SLOP;
+
+			}
+			else
+			{
+				mAnimationDuration = gSavedSettings.getF32("ZoomTime");
+			}
+		}
+		setFocusGlobal(LLVector3d::zero);
+	}
+	else
+	{
+		mCameraAnimating = FALSE;
+		gAgent.endAnimationUpdateUI();
+	}
+}
+
+
+void LLAgentCamera::switchCameraPreset(ECameraPreset preset)
+{
+	//zoom is supposed to be reset for the front and group views
+	mCameraZoomFraction = 1.f;
+
+	//focusing on avatar in that case means following him on movements
+	mFocusOnAvatar = TRUE;
+
+	mCameraPreset = preset;
+
+	gSavedSettings.setU32("CameraPreset", mCameraPreset);
+}
+
+
+//
+// Focus point management
+//
+
+//-----------------------------------------------------------------------------
+// startCameraAnimation()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::startCameraAnimation()
+{
+	mAnimationCameraStartGlobal = getCameraPositionGlobal();
+	mAnimationFocusStartGlobal = mFocusGlobal;
+	mAnimationTimer.reset();
+	mCameraAnimating = TRUE;
+	mAnimationDuration = gSavedSettings.getF32("ZoomTime");
+}
+
+//-----------------------------------------------------------------------------
+// stopCameraAnimation()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::stopCameraAnimation()
+{
+	mCameraAnimating = FALSE;
+}
+
+void LLAgentCamera::clearFocusObject()
+{
+	if (mFocusObject.notNull())
+	{
+		startCameraAnimation();
+
+		setFocusObject(NULL);
+		mFocusObjectOffset.clearVec();
+	}
+}
+
+void LLAgentCamera::setFocusObject(LLViewerObject* object)
+{
+	mFocusObject = object;
+}
+
+// Focus on a point, but try to keep camera position stable.
+//-----------------------------------------------------------------------------
+// setFocusGlobal()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::setFocusGlobal(const LLPickInfo& pick)
+{
+	LLViewerObject* objectp = gObjectList.findObject(pick.mObjectID);
+
+	if (objectp)
+	{
+		// focus on object plus designated offset
+		// which may or may not be same as pick.mPosGlobal
+		setFocusGlobal(objectp->getPositionGlobal() + LLVector3d(pick.mObjectOffset), pick.mObjectID);
+	}
+	else
+	{
+		// focus directly on point where user clicked
+		setFocusGlobal(pick.mPosGlobal, pick.mObjectID);
+	}
+}
+
+
+void LLAgentCamera::setFocusGlobal(const LLVector3d& focus, const LLUUID &object_id)
+{
+	setFocusObject(gObjectList.findObject(object_id));
+	LLVector3d old_focus = mFocusTargetGlobal;
+	LLViewerObject *focus_obj = mFocusObject;
+
+	// if focus has changed
+	if (old_focus != focus)
+	{
+		if (focus.isExactlyZero())
+		{
+			if (isAgentAvatarValid())
+			{
+				mFocusTargetGlobal = gAgent.getPosGlobalFromAgent(gAgentAvatarp->mHeadp->getWorldPosition());
+			}
+			else
+			{
+				mFocusTargetGlobal = gAgent.getPositionGlobal();
+			}
+			mCameraFocusOffsetTarget = getCameraPositionGlobal() - mFocusTargetGlobal;
+			mCameraFocusOffset = mCameraFocusOffsetTarget;
+			setLookAt(LOOKAT_TARGET_CLEAR);
+		}
+		else
+		{
+			mFocusTargetGlobal = focus;
+			if (!focus_obj)
+			{
+				mCameraFOVZoomFactor = 0.f;
+			}
+
+			mCameraFocusOffsetTarget = gAgent.getPosGlobalFromAgent(mCameraVirtualPositionAgent) - mFocusTargetGlobal;
+
+			startCameraAnimation();
+
+			if (focus_obj)
+			{
+				if (focus_obj->isAvatar())
+				{
+					setLookAt(LOOKAT_TARGET_FOCUS, focus_obj);
+				}
+				else
+				{
+					setLookAt(LOOKAT_TARGET_FOCUS, focus_obj, (gAgent.getPosAgentFromGlobal(focus) - focus_obj->getRenderPosition()) * ~focus_obj->getRenderRotation());
+				}
+			}
+			else
+			{
+				setLookAt(LOOKAT_TARGET_FOCUS, NULL, gAgent.getPosAgentFromGlobal(mFocusTargetGlobal));
+			}
+		}
+	}
+	else // focus == mFocusTargetGlobal
+	{
+		if (focus.isExactlyZero())
+		{
+			if (isAgentAvatarValid())
+			{
+				mFocusTargetGlobal = gAgent.getPosGlobalFromAgent(gAgentAvatarp->mHeadp->getWorldPosition());
+			}
+			else
+			{
+				mFocusTargetGlobal = gAgent.getPositionGlobal();
+			}
+		}
+		mCameraFocusOffsetTarget = (getCameraPositionGlobal() - mFocusTargetGlobal) / (1.f + mCameraFOVZoomFactor);;
+		mCameraFocusOffset = mCameraFocusOffsetTarget;
+	}
+
+	if (mFocusObject.notNull())
+	{
+		// for attachments, make offset relative to avatar, not the attachment
+		if (mFocusObject->isAttachment())
+		{
+			while (mFocusObject.notNull() && !mFocusObject->isAvatar())
+			{
+				mFocusObject = (LLViewerObject*) mFocusObject->getParent();
+			}
+			setFocusObject((LLViewerObject*)mFocusObject);
+		}
+		updateFocusOffset();
+	}
+}
+
+// Used for avatar customization
+//-----------------------------------------------------------------------------
+// setCameraPosAndFocusGlobal()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::setCameraPosAndFocusGlobal(const LLVector3d& camera_pos, const LLVector3d& focus, const LLUUID &object_id)
+{
+	LLVector3d old_focus = mFocusTargetGlobal;
+
+	F64 focus_delta_squared = (old_focus - focus).magVecSquared();
+	const F64 ANIM_EPSILON_SQUARED = 0.0001;
+	if (focus_delta_squared > ANIM_EPSILON_SQUARED)
+	{
+		startCameraAnimation();
+
+		if (CAMERA_MODE_CUSTOMIZE_AVATAR == mCameraMode) 
+		{
+			// Compensate for the fact that the camera has already been offset to make room for LLFloaterCustomize.
+			mAnimationCameraStartGlobal -= LLVector3d(LLViewerCamera::getInstance()->getLeftAxis() * calcCustomizeAvatarUIOffset( mAnimationCameraStartGlobal ));
+		}
+	}
+	
+	//LLViewerCamera::getInstance()->setOrigin( gAgent.getPosAgentFromGlobal( camera_pos ) );
+	setFocusObject(gObjectList.findObject(object_id));
+	mFocusTargetGlobal = focus;
+	mCameraFocusOffsetTarget = camera_pos - focus;
+	mCameraFocusOffset = mCameraFocusOffsetTarget;
+
+	if (mFocusObject)
+	{
+		if (mFocusObject->isAvatar())
+		{
+			setLookAt(LOOKAT_TARGET_FOCUS, mFocusObject);
+		}
+		else
+		{
+			setLookAt(LOOKAT_TARGET_FOCUS, mFocusObject, (gAgent.getPosAgentFromGlobal(focus) - mFocusObject->getRenderPosition()) * ~mFocusObject->getRenderRotation());
+		}
+	}
+	else
+	{
+		setLookAt(LOOKAT_TARGET_FOCUS, NULL, gAgent.getPosAgentFromGlobal(mFocusTargetGlobal));
+	}
+
+	if (mCameraAnimating)
+	{
+		const F64 ANIM_METERS_PER_SECOND = 10.0;
+		const F64 MIN_ANIM_SECONDS = 0.5;
+		const F64 MAX_ANIM_SECONDS = 10.0;
+		F64 anim_duration = llmax( MIN_ANIM_SECONDS, sqrt(focus_delta_squared) / ANIM_METERS_PER_SECOND );
+		anim_duration = llmin( anim_duration, MAX_ANIM_SECONDS );
+		setAnimationDuration( (F32)anim_duration );
+	}
+
+	updateFocusOffset();
+}
+
+//-----------------------------------------------------------------------------
+// setSitCamera()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::setSitCamera(const LLUUID &object_id, const LLVector3 &camera_pos, const LLVector3 &camera_focus)
+{
+	BOOL camera_enabled = !object_id.isNull();
+
+	if (camera_enabled)
+	{
+		LLViewerObject *reference_object = gObjectList.findObject(object_id);
+		if (reference_object)
+		{
+			//convert to root object relative?
+			mSitCameraPos = camera_pos;
+			mSitCameraFocus = camera_focus;
+			mSitCameraReferenceObject = reference_object;
+			mSitCameraEnabled = TRUE;
+		}
+	}
+	else
+	{
+		mSitCameraPos.clearVec();
+		mSitCameraFocus.clearVec();
+		mSitCameraReferenceObject = NULL;
+		mSitCameraEnabled = FALSE;
+	}
+}
+
+//-----------------------------------------------------------------------------
+// setFocusOnAvatar()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::setFocusOnAvatar(BOOL focus_on_avatar, BOOL animate)
+{
+	if (focus_on_avatar != mFocusOnAvatar)
+	{
+		if (animate)
+		{
+			startCameraAnimation();
+		}
+		else
+		{
+			stopCameraAnimation();
+		}
+	}
+	
+	//RN: when focused on the avatar, we're not "looking" at it
+	// looking implies intent while focusing on avatar means
+	// you're just walking around with a camera on you...eesh.
+	if (!mFocusOnAvatar && focus_on_avatar)
+	{
+		setFocusGlobal(LLVector3d::zero);
+		mCameraFOVZoomFactor = 0.f;
+		if (mCameraMode == CAMERA_MODE_THIRD_PERSON)
+		{
+			LLVector3 at_axis;
+			if (isAgentAvatarValid() && gAgentAvatarp->getParent())
+			{
+				LLQuaternion obj_rot = ((LLViewerObject*)gAgentAvatarp->getParent())->getRenderRotation();
+				at_axis = LLViewerCamera::getInstance()->getAtAxis();
+				at_axis.mV[VZ] = 0.f;
+				at_axis.normalize();
+				gAgent.resetAxes(at_axis * ~obj_rot);
+			}
+			else
+			{
+				at_axis = LLViewerCamera::getInstance()->getAtAxis();
+				at_axis.mV[VZ] = 0.f;
+				at_axis.normalize();
+				gAgent.resetAxes(at_axis);
+			}
+		}
+	}
+	// unlocking camera from avatar
+	else if (mFocusOnAvatar && !focus_on_avatar)
+	{
+		// keep camera focus point consistent, even though it is now unlocked
+		setFocusGlobal(gAgent.getPositionGlobal() + calcThirdPersonFocusOffset(), gAgent.getID());
+	}
+	
+	mFocusOnAvatar = focus_on_avatar;
+}
+
+
+BOOL LLAgentCamera::setLookAt(ELookAtType target_type, LLViewerObject *object, LLVector3 position)
+{
+	if(object && object->isAttachment())
+	{
+		LLViewerObject* parent = object;
+		while(parent)
+		{
+			if (parent == gAgentAvatarp)
+			{
+				// looking at an attachment on ourselves, which we don't want to do
+				object = gAgentAvatarp;
+				position.clearVec();
+			}
+			parent = (LLViewerObject*)parent->getParent();
+		}
+	}
+	if(!mLookAt || mLookAt->isDead())
+	{
+		mLookAt = (LLHUDEffectLookAt *)LLHUDManager::getInstance()->createViewerEffect(LLHUDObject::LL_HUD_EFFECT_LOOKAT);
+		mLookAt->setSourceObject(gAgentAvatarp);
+	}
+
+	return mLookAt->setLookAt(target_type, object, position);
+}
+
+//-----------------------------------------------------------------------------
+// lookAtLastChat()
+//-----------------------------------------------------------------------------
+void LLAgentCamera::lookAtLastChat()
+{
+	// Block if camera is animating or not in normal third person camera mode
+	if (mCameraAnimating || !cameraThirdPerson())
+	{
+		return;
+	}
+
+	LLViewerObject *chatter = gObjectList.findObject(gAgent.getLastChatter());
+	if (!chatter)
+	{
+		return;
+	}
+
+	LLVector3 delta_pos;
+	if (chatter->isAvatar())
+	{
+		LLVOAvatar *chatter_av = (LLVOAvatar*)chatter;
+		if (isAgentAvatarValid() && chatter_av->mHeadp)
+		{
+			delta_pos = chatter_av->mHeadp->getWorldPosition() - gAgentAvatarp->mHeadp->getWorldPosition();
+		}
+		else
+		{
+			delta_pos = chatter->getPositionAgent() - gAgent.getPositionAgent();
+		}
+		delta_pos.normalize();
+
+		gAgent.setControlFlags(AGENT_CONTROL_STOP);
+
+		changeCameraToThirdPerson();
+
+		LLVector3 new_camera_pos = gAgentAvatarp->mHeadp->getWorldPosition();
+		LLVector3 left = delta_pos % LLVector3::z_axis;
+		left.normalize();
+		LLVector3 up = left % delta_pos;
+		up.normalize();
+		new_camera_pos -= delta_pos * 0.4f;
+		new_camera_pos += left * 0.3f;
+		new_camera_pos += up * 0.2f;
+		if (chatter_av->mHeadp)
+		{
+			setFocusGlobal(gAgent.getPosGlobalFromAgent(chatter_av->mHeadp->getWorldPosition()), gAgent.getLastChatter());
+			mCameraFocusOffsetTarget = gAgent.getPosGlobalFromAgent(new_camera_pos) - gAgent.getPosGlobalFromAgent(chatter_av->mHeadp->getWorldPosition());
+		}
+		else
+		{
+			setFocusGlobal(chatter->getPositionGlobal(), gAgent.getLastChatter());
+			mCameraFocusOffsetTarget = gAgent.getPosGlobalFromAgent(new_camera_pos) - chatter->getPositionGlobal();
+		}
+		setFocusOnAvatar(FALSE, TRUE);
+	}
+	else
+	{
+		delta_pos = chatter->getRenderPosition() - gAgent.getPositionAgent();
+		delta_pos.normalize();
+
+		gAgent.setControlFlags(AGENT_CONTROL_STOP);
+
+		changeCameraToThirdPerson();
+
+		LLVector3 new_camera_pos = gAgentAvatarp->mHeadp->getWorldPosition();
+		LLVector3 left = delta_pos % LLVector3::z_axis;
+		left.normalize();
+		LLVector3 up = left % delta_pos;
+		up.normalize();
+		new_camera_pos -= delta_pos * 0.4f;
+		new_camera_pos += left * 0.3f;
+		new_camera_pos += up * 0.2f;
+
+		setFocusGlobal(chatter->getPositionGlobal(), gAgent.getLastChatter());
+		mCameraFocusOffsetTarget = gAgent.getPosGlobalFromAgent(new_camera_pos) - chatter->getPositionGlobal();
+		setFocusOnAvatar(FALSE, TRUE);
+	}
+}
+
+BOOL LLAgentCamera::setPointAt(EPointAtType target_type, LLViewerObject *object, LLVector3 position)
+{
+	// disallow pointing at attachments and avatars
+	if (object && (object->isAttachment() || object->isAvatar()))
+	{
+		return FALSE;
+	}
+	if (!mPointAt || mPointAt->isDead())
+	{
+		mPointAt = (LLHUDEffectPointAt *)LLHUDManager::getInstance()->createViewerEffect(LLHUDObject::LL_HUD_EFFECT_POINTAT);
+		mPointAt->setSourceObject(gAgentAvatarp);
+	}
+	return mPointAt->setPointAt(target_type, object, position);
+}
+
+ELookAtType LLAgentCamera::getLookAtType()
+{
+	if (mLookAt) 
+	{
+		return mLookAt->getLookAtType();
+	}
+	return LOOKAT_TARGET_NONE;
+}
+
+EPointAtType LLAgentCamera::getPointAtType()
+{ 
+	if (mPointAt) 
+	{
+		return mPointAt->getPointAtType();
+	}
+	return POINTAT_TARGET_NONE;
+}
+
+// EOF
+