diff options
author | Dave Parks <davep@lindenlab.com> | 2023-03-24 14:33:41 -0500 |
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committer | Dave Parks <davep@lindenlab.com> | 2023-03-24 14:33:41 -0500 |
commit | 5882215a6d53f5a20779be78805392f4e38c3669 (patch) | |
tree | bdc89e2b0ccdcb336a61c915399324cde6b83e60 /indra/llmath/llcamera.cpp | |
parent | df9d2b6e9613d15d39e3e870fc09686e41b6c37f (diff) |
SL-19321 Optimization pass -- Remove another shadow split from probe render, incidental decruft.
Diffstat (limited to 'indra/llmath/llcamera.cpp')
-rw-r--r-- | indra/llmath/llcamera.cpp | 222 |
1 files changed, 0 insertions, 222 deletions
diff --git a/indra/llmath/llcamera.cpp b/indra/llmath/llcamera.cpp index 9034182072..18d704dd0f 100644 --- a/indra/llmath/llcamera.cpp +++ b/indra/llmath/llcamera.cpp @@ -311,104 +311,6 @@ int LLCamera::sphereInFrustumQuick(const LLVector3 &sphere_center, const F32 rad return 0; } -// HACK: This version is still around because the version below doesn't work -// unless the agent planes are initialized. -// Return 1 if sphere is in frustum, 2 if fully in frustum, otherwise 0. -// NOTE: 'center' is in absolute frame. -int LLCamera::sphereInFrustumOld(const LLVector3 &sphere_center, const F32 radius) const -{ - // Returns 1 if sphere is in frustum, 0 if not. - // modified so that default view frust is along X with Z vertical - F32 x, y, z, rightDist, leftDist, topDist, bottomDist; - - // Subtract the view position - //LLVector3 relative_center; - //relative_center = sphere_center - getOrigin(); - LLVector3 rel_center(sphere_center); - rel_center -= mOrigin; - - bool all_in = TRUE; - - // Transform relative_center.x to camera frame - x = mXAxis * rel_center; - if (x < MIN_NEAR_PLANE - radius) - { - return 0; - } - else if (x < MIN_NEAR_PLANE + radius) - { - all_in = FALSE; - } - - if (x > mFarPlane + radius) - { - return 0; - } - else if (x > mFarPlane - radius) - { - all_in = FALSE; - } - - // Transform relative_center.y to camera frame - y = mYAxis * rel_center; - - // distance to plane is the dot product of (x, y, 0) * plane_normal - rightDist = x * mLocalPlanes[PLANE_RIGHT][VX] + y * mLocalPlanes[PLANE_RIGHT][VY]; - if (rightDist < -radius) - { - return 0; - } - else if (rightDist < radius) - { - all_in = FALSE; - } - - leftDist = x * mLocalPlanes[PLANE_LEFT][VX] + y * mLocalPlanes[PLANE_LEFT][VY]; - if (leftDist < -radius) - { - return 0; - } - else if (leftDist < radius) - { - all_in = FALSE; - } - - // Transform relative_center.y to camera frame - z = mZAxis * rel_center; - - topDist = x * mLocalPlanes[PLANE_TOP][VX] + z * mLocalPlanes[PLANE_TOP][VZ]; - if (topDist < -radius) - { - return 0; - } - else if (topDist < radius) - { - all_in = FALSE; - } - - bottomDist = x * mLocalPlanes[PLANE_BOTTOM][VX] + z * mLocalPlanes[PLANE_BOTTOM][VZ]; - if (bottomDist < -radius) - { - return 0; - } - else if (bottomDist < radius) - { - all_in = FALSE; - } - - if (all_in) - { - return 2; - } - - return 1; -} - - -// HACK: This (presumably faster) version only currently works if you set up the -// frustum planes using GL. At some point we should get those planes through another -// mechanism, and then we can get rid of the "old" version above. - // Return 1 if sphere is in frustum, 2 if fully in frustum, otherwise 0. // NOTE: 'center' is in absolute frame. int LLCamera::sphereInFrustum(const LLVector3 &sphere_center, const F32 radius) const @@ -463,65 +365,6 @@ F32 LLCamera::heightInPixels(const LLVector3 ¢er, F32 radius ) const } } -// If pos is visible, return the distance from pos to the camera. -// Use fudge distance to scale rad against top/bot/left/right planes -// Otherwise, return -distance -F32 LLCamera::visibleDistance(const LLVector3 &pos, F32 rad, F32 fudgedist, U32 planemask) const -{ - if (mFixedDistance > 0) - { - return mFixedDistance; - } - LLVector3 dvec = pos - mOrigin; - // Check visibility - F32 dist = dvec.magVec(); - if (dist > rad) - { - F32 dp,tdist; - dp = dvec * mXAxis; - if (dp < -rad) - return -dist; - - rad *= fudgedist; - LLVector3 tvec(pos); - for (int p=0; p<PLANE_NUM; p++) - { - if (!(planemask & (1<<p))) - continue; - tdist = -(mWorldPlanes[p].dist(tvec)); - if (tdist > rad) - return -dist; - } - } - return dist; -} - -// Like visibleDistance, except uses mHorizPlanes[], which are left and right -// planes perpindicular to (0,0,1) in world space -F32 LLCamera::visibleHorizDistance(const LLVector3 &pos, F32 rad, F32 fudgedist, U32 planemask) const -{ - if (mFixedDistance > 0) - { - return mFixedDistance; - } - LLVector3 dvec = pos - mOrigin; - // Check visibility - F32 dist = dvec.magVec(); - if (dist > rad) - { - rad *= fudgedist; - LLVector3 tvec(pos); - for (int p=0; p<HORIZ_PLANE_NUM; p++) - { - if (!(planemask & (1<<p))) - continue; - F32 tdist = -(mHorizPlanes[p].dist(tvec)); - if (tdist > rad) - return -dist; - } - } - return dist; -} // ---------------- friends and operators ---------------- @@ -536,18 +379,6 @@ std::ostream& operator<<(std::ostream &s, const LLCamera &C) s << " Aspect = " << C.getAspect() << "\n"; s << " NearPlane = " << C.mNearPlane << "\n"; s << " FarPlane = " << C.mFarPlane << "\n"; - s << " TopPlane = " << C.mLocalPlanes[LLCamera::PLANE_TOP][VX] << " " - << C.mLocalPlanes[LLCamera::PLANE_TOP][VY] << " " - << C.mLocalPlanes[LLCamera::PLANE_TOP][VZ] << "\n"; - s << " BottomPlane = " << C.mLocalPlanes[LLCamera::PLANE_BOTTOM][VX] << " " - << C.mLocalPlanes[LLCamera::PLANE_BOTTOM][VY] << " " - << C.mLocalPlanes[LLCamera::PLANE_BOTTOM][VZ] << "\n"; - s << " LeftPlane = " << C.mLocalPlanes[LLCamera::PLANE_LEFT][VX] << " " - << C.mLocalPlanes[LLCamera::PLANE_LEFT][VY] << " " - << C.mLocalPlanes[LLCamera::PLANE_LEFT][VZ] << "\n"; - s << " RightPlane = " << C.mLocalPlanes[LLCamera::PLANE_RIGHT][VX] << " " - << C.mLocalPlanes[LLCamera::PLANE_RIGHT][VY] << " " - << C.mLocalPlanes[LLCamera::PLANE_RIGHT][VZ] << "\n"; s << "}"; return s; } @@ -675,26 +506,6 @@ void LLCamera::calcRegionFrustumPlanes(const LLVector3& shift, F32 far_clip_dist void LLCamera::calculateFrustumPlanes(F32 left, F32 right, F32 top, F32 bottom) { - LLVector3 a, b, c; - - // For each plane we need to define 3 points (LLVector3's) in camera view space. - // The order in which we pass the points to planeFromPoints() matters, because the - // plane normal has a degeneracy of 2; we want it pointing _into_ the frustum. - - a.setVec(0.0f, 0.0f, 0.0f); - b.setVec(mFarPlane, right, top); - c.setVec(mFarPlane, right, bottom); - mLocalPlanes[PLANE_RIGHT].setVec(a, b, c); - - c.setVec(mFarPlane, left, top); - mLocalPlanes[PLANE_TOP].setVec(a, c, b); - - b.setVec(mFarPlane, left, bottom); - mLocalPlanes[PLANE_LEFT].setVec(a, b, c); - - c.setVec(mFarPlane, right, bottom); - mLocalPlanes[PLANE_BOTTOM].setVec( a, c, b); - //calculate center and radius squared of frustum in world absolute coordinates static LLVector3 const X_AXIS(1.f, 0.f, 0.f); mFrustCenter = X_AXIS*mFarPlane*0.5f; @@ -718,39 +529,6 @@ void LLCamera::calculateFrustumPlanesFromWindow(F32 x1, F32 y1, F32 x2, F32 y2) calculateFrustumPlanes(left, right, top, bottom); } -void LLCamera::calculateWorldFrustumPlanes() -{ - F32 d; - LLVector3 center = mOrigin - mXAxis*mNearPlane; - mWorldPlanePos = center; - LLVector3 pnorm; - for (int p = 0; p < PLANE_NUM; p++) - { - mLocalPlanes[p].getVector3(pnorm); - LLVector3 norm = rotateToAbsolute(pnorm); - norm.normVec(); - d = -(center * norm); - mWorldPlanes[p] = LLPlane(norm, d); - } - // horizontal planes, perpindicular to (0,0,1); - LLVector3 zaxis(0, 0, 1.0f); - F32 yaw = getYaw(); - { - LLVector3 tnorm; - mLocalPlanes[PLANE_LEFT].getVector3(tnorm); - tnorm.rotVec(yaw, zaxis); - d = -(mOrigin * tnorm); - mHorizPlanes[HORIZ_PLANE_LEFT] = LLPlane(tnorm, d); - } - { - LLVector3 tnorm; - mLocalPlanes[PLANE_RIGHT].getVector3(tnorm); - tnorm.rotVec(yaw, zaxis); - d = -(mOrigin * tnorm); - mHorizPlanes[HORIZ_PLANE_RIGHT] = LLPlane(tnorm, d); - } -} - // NOTE: this is the OpenGL matrix that will transform the default OpenGL view // (-Z=at, Y=up) to the default view of the LLCamera class (X=at, Z=up): // |