summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--indra/llmath/lloctree.h11
-rw-r--r--indra/newview/app_settings/settings.xml75
-rw-r--r--indra/newview/lldrawable.cpp9
-rw-r--r--indra/newview/lldrawable.h1
-rw-r--r--indra/newview/llspatialpartition.cpp42
-rw-r--r--indra/newview/llviewercontrol.cpp16
-rw-r--r--indra/newview/llviewerdisplay.cpp1
-rw-r--r--indra/newview/llviewerobjectlist.cpp18
-rw-r--r--indra/newview/llviewerobjectlist.h1
-rw-r--r--indra/newview/llvovolume.cpp48
-rw-r--r--indra/newview/pipeline.cpp28
-rw-r--r--indra/newview/pipeline.h7
12 files changed, 208 insertions, 49 deletions
diff --git a/indra/llmath/lloctree.h b/indra/llmath/lloctree.h
index fdfc24f8b7..e5ca47da69 100644
--- a/indra/llmath/lloctree.h
+++ b/indra/llmath/lloctree.h
@@ -35,12 +35,14 @@
#define OCT_ERRS LL_WARNS("OctreeErrors")
-#define LL_OCTREE_PARANOIA_CHECK 0
+
+extern U32 gOctreeMaxCapacity;
+/*#define LL_OCTREE_PARANOIA_CHECK 0
#if LL_DARWIN
#define LL_OCTREE_MAX_CAPACITY 32
#else
#define LL_OCTREE_MAX_CAPACITY 128
-#endif
+#endif*/
template <class T> class LLOctreeNode;
@@ -74,6 +76,7 @@ template <class T>
class LLOctreeNode : public LLTreeNode<T>
{
public:
+
typedef LLOctreeTraveler<T> oct_traveler;
typedef LLTreeTraveler<T> tree_traveler;
typedef typename std::set<LLPointer<T> > element_list;
@@ -294,8 +297,8 @@ public:
//is it here?
if (isInside(data->getPositionGroup()))
{
- if ((getElementCount() < LL_OCTREE_MAX_CAPACITY && contains(data->getBinRadius()) ||
- (data->getBinRadius() > getSize()[0] && parent && parent->getElementCount() >= LL_OCTREE_MAX_CAPACITY)))
+ if ((getElementCount() < gOctreeMaxCapacity && contains(data->getBinRadius()) ||
+ (data->getBinRadius() > getSize()[0] && parent && parent->getElementCount() >= gOctreeMaxCapacity)))
{ //it belongs here
#if LL_OCTREE_PARANOIA_CHECK
//if this is a redundant insertion, error out (should never happen)
diff --git a/indra/newview/app_settings/settings.xml b/indra/newview/app_settings/settings.xml
index 78db307d64..2c6d75e3c9 100644
--- a/indra/newview/app_settings/settings.xml
+++ b/indra/newview/app_settings/settings.xml
@@ -7091,7 +7091,76 @@
<key>Value</key>
<integer>1</integer>
</map>
- <key>RenderAnisotropic</key>
+
+ <key>OctreeMaxNodeCapacity</key>
+ <map>
+ <key>Comment</key>
+ <string>Maximum number of elements to store in a single octree node</string>
+ <key>Persist</key>
+ <integer>1</integer>
+ <key>Type</key>
+ <string>U32</string>
+ <key>Value</key>
+ <integer>128</integer>
+ </map>
+
+ <key>OctreeStaticObjectSizeFactor</key>
+ <map>
+ <key>Comment</key>
+ <string>Multiplier on static object size for determining octree node size </string>
+ <key>Persist</key>
+ <integer>1</integer>
+ <key>Type</key>
+ <string>S32</string>
+ <key>Value</key>
+ <integer>1</integer>
+ </map>
+
+ <key>OctreeAlphaDistanceFactor</key>
+ <map>
+ <key>Comment</key>
+ <string>Multiplier on alpha object distance for determining octree node size </string>
+ <key>Persist</key>
+ <integer>1</integer>
+ <key>Type</key>
+ <string>Vector3</string>
+ <key>Value</key>
+ <array>
+ <real>0.05</real>
+ <real>0.0</real>
+ <real>0.0</real>
+ </array>
+ </map>
+
+ <key>OctreeAttachmentSizeFactor</key>
+ <map>
+ <key>Comment</key>
+ <string>Multiplier on attachment size for determining octree node size </string>
+ <key>Persist</key>
+ <integer>1</integer>
+ <key>Type</key>
+ <string>S32</string>
+ <key>Value</key>
+ <integer>4</integer>
+ </map>
+
+ <key>OctreeDistanceFactor</key>
+ <map>
+ <key>Comment</key>
+ <string>Multiplier on distance for determining octree node size </string>
+ <key>Persist</key>
+ <integer>1</integer>
+ <key>Type</key>
+ <string>Vector3</string>
+ <key>Value</key>
+ <array>
+ <real>0.05</real>
+ <real>0.0</real>
+ <real>0.0</real>
+ </array>
+ </map>
+
+ <key>RenderAnisotropic</key>
<map>
<key>Comment</key>
<string>Render textures using anisotropic filtering</string>
@@ -7188,7 +7257,7 @@
<key>Type</key>
<string>F32</string>
<key>Value</key>
- <integer>1.0</integer>
+ <real>1.0</real>
</map>
<key>RenderAvatarVP</key>
<map>
@@ -8589,7 +8658,7 @@
<key>Type</key>
<string>S32</string>
<key>Value</key>
- <integer>8192</integer>
+ <integer>65536</integer>
</map>
<key>RenderMaxVBOSize</key>
<map>
diff --git a/indra/newview/lldrawable.cpp b/indra/newview/lldrawable.cpp
index 7db13868d6..ad3710843c 100644
--- a/indra/newview/lldrawable.cpp
+++ b/indra/newview/lldrawable.cpp
@@ -94,7 +94,9 @@ void LLDrawable::init()
mRenderType = 0;
mCurrentScale = LLVector3(1,1,1);
mDistanceWRTCamera = 0.0f;
-
+ mPositionGroup.clear();
+ mExtents[0].clear();
+ mExtents[1].clear();
mQuietCount = 0;
mState = 0;
@@ -587,7 +589,10 @@ void LLDrawable::setRadius(F32 radius)
void LLDrawable::moveUpdatePipeline(BOOL moved)
{
- makeActive();
+ if (moved)
+ {
+ makeActive();
+ }
// Update the face centers.
for (S32 i = 0; i < getNumFaces(); i++)
diff --git a/indra/newview/lldrawable.h b/indra/newview/lldrawable.h
index 9ebe1a45b4..e268640a21 100644
--- a/indra/newview/lldrawable.h
+++ b/indra/newview/lldrawable.h
@@ -276,6 +276,7 @@ public:
REBUILD_SHADOW = 0x02000000,
HAS_ALPHA = 0x04000000,
RIGGED = 0x08000000,
+ PARTITION_MOVE = 0x10000000,
} EDrawableFlags;
private: //aligned members
diff --git a/indra/newview/llspatialpartition.cpp b/indra/newview/llspatialpartition.cpp
index a812ba4e03..8143d6a41f 100644
--- a/indra/newview/llspatialpartition.cpp
+++ b/indra/newview/llspatialpartition.cpp
@@ -69,6 +69,7 @@ U32 LLSpatialGroup::sNodeCount = 0;
std::set<GLuint> LLSpatialGroup::sPendingQueries;
+U32 gOctreeMaxCapacity;
BOOL LLSpatialGroup::sNoDelete = FALSE;
@@ -630,7 +631,7 @@ BOOL LLSpatialGroup::updateInGroup(LLDrawable *drawablep, BOOL immediate)
if (mOctreeNode->isInside(drawablep->getPositionGroup()) &&
(mOctreeNode->contains(drawablep) ||
(drawablep->getBinRadius() > mOctreeNode->getSize()[0] &&
- parent && parent->getElementCount() >= LL_OCTREE_MAX_CAPACITY)))
+ parent && parent->getElementCount() >= gOctreeMaxCapacity)))
{
unbound();
setState(OBJECT_DIRTY);
@@ -2515,7 +2516,7 @@ void renderOctree(LLSpatialGroup* group)
//coded by buffer usage and activity
gGL.setSceneBlendType(LLRender::BT_ADD_WITH_ALPHA);
LLVector4 col;
- if (group->mBuilt > 0.f)
+ /*if (group->mBuilt > 0.f)
{
group->mBuilt -= 2.f * gFrameIntervalSeconds;
if (group->mBufferUsage == GL_STATIC_DRAW_ARB)
@@ -2584,7 +2585,7 @@ void renderOctree(LLSpatialGroup* group)
gGL.color4f(1,1,1,1);
}
}
- else
+ else*/
{
if (group->mBufferUsage == GL_STATIC_DRAW_ARB && !group->getData().empty()
&& group->mSpatialPartition->mRenderByGroup)
@@ -2604,33 +2605,24 @@ void renderOctree(LLSpatialGroup* group)
size.mul(1.01f);
size.add(fudge);
- {
- LLGLDepthTest depth(GL_TRUE, GL_FALSE);
- drawBox(group->mObjectBounds[0], fudge);
- }
+ //{
+ // LLGLDepthTest depth(GL_TRUE, GL_FALSE);
+ // drawBox(group->mObjectBounds[0], fudge);
+ //}
gGL.setSceneBlendType(LLRender::BT_ALPHA);
- if (group->mBuilt <= 0.f)
+ //if (group->mBuilt <= 0.f)
{
//draw opaque outline
- gGL.color4f(col.mV[0], col.mV[1], col.mV[2], 1.f);
- drawBoxOutline(group->mObjectBounds[0], group->mObjectBounds[1]);
+ //gGL.color4f(col.mV[0], col.mV[1], col.mV[2], 1.f);
+ //drawBoxOutline(group->mObjectBounds[0], group->mObjectBounds[1]);
- if (group->mOctreeNode->isLeaf())
- {
- gGL.color4f(1,1,1,1);
- }
- else
- {
- gGL.color4f(0,1,1,1);
- }
-
+ gGL.color4f(0,1,1,1);
drawBoxOutline(group->mBounds[0],group->mBounds[1]);
-
-
+
//draw bounding box for draw info
- if (group->mSpatialPartition->mRenderByGroup)
+ /*if (group->mSpatialPartition->mRenderByGroup)
{
gGL.color4f(1.0f, 0.75f, 0.25f, 0.6f);
for (LLSpatialGroup::draw_map_t::iterator i = group->mDrawMap.begin(); i != group->mDrawMap.end(); ++i)
@@ -2647,7 +2639,7 @@ void renderOctree(LLSpatialGroup* group)
drawBoxOutline(center, size);
}
}
- }
+ }*/
}
// LLSpatialGroup::OctreeNode* node = group->mOctreeNode;
@@ -2690,7 +2682,7 @@ void renderVisibility(LLSpatialGroup* group, LLCamera* camera)
gGL.color4f(0.f, 0.75f, 0.f, 0.5f);
pushBufferVerts(group, LLVertexBuffer::MAP_VERTEX);
}
- else if (camera && group->mOcclusionVerts.notNull())
+ /*else if (camera && group->mOcclusionVerts.notNull())
{
LLVertexBuffer::unbind();
group->mOcclusionVerts->setBuffer(LLVertexBuffer::MAP_VERTEX);
@@ -2702,7 +2694,7 @@ void renderVisibility(LLSpatialGroup* group, LLCamera* camera)
glColor4f(1.0f, 1.f, 1.f, 1.0f);
group->mOcclusionVerts->drawRange(LLRender::TRIANGLE_FAN, 0, 7, 8, get_box_fan_indices(camera, group->mBounds[0]));
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
- }
+ }*/
}
}
diff --git a/indra/newview/llviewercontrol.cpp b/indra/newview/llviewercontrol.cpp
index 00a0b87d93..61200db2b9 100644
--- a/indra/newview/llviewercontrol.cpp
+++ b/indra/newview/llviewercontrol.cpp
@@ -57,6 +57,7 @@
#include "llworld.h"
#include "pipeline.h"
#include "llviewerjoystick.h"
+#include "llviewerobjectlist.h"
#include "llviewerparcelmgr.h"
#include "llparcel.h"
#include "llkeyboard.h"
@@ -372,6 +373,16 @@ static bool handleResetVertexBuffersChanged(const LLSD&)
return true;
}
+static bool handleRepartition(const LLSD&)
+{
+ if (gPipeline.isInit())
+ {
+ gOctreeMaxCapacity = gSavedSettings.getU32("OctreeMaxNodeCapacity");
+ gObjectList.repartitionObjects();
+ }
+ return true;
+}
+
static bool handleRenderDynamicLODChanged(const LLSD& newvalue)
{
LLPipeline::sDynamicLOD = newvalue.asBoolean();
@@ -575,6 +586,11 @@ void settings_setup_listeners()
gSavedSettings.getControl("FirstPersonAvatarVisible")->getSignal()->connect(boost::bind(&handleRenderAvatarMouselookChanged, _2));
gSavedSettings.getControl("RenderFarClip")->getSignal()->connect(boost::bind(&handleRenderFarClipChanged, _2));
gSavedSettings.getControl("RenderTerrainDetail")->getSignal()->connect(boost::bind(&handleTerrainDetailChanged, _2));
+ gSavedSettings.getControl("OctreeStaticObjectSizeFactor")->getSignal()->connect(boost::bind(&handleRepartition, _2));
+ gSavedSettings.getControl("OctreeDistanceFactor")->getSignal()->connect(boost::bind(&handleRepartition, _2));
+ gSavedSettings.getControl("OctreeMaxNodeCapacity")->getSignal()->connect(boost::bind(&handleRepartition, _2));
+ gSavedSettings.getControl("OctreeAlphaDistanceFactor")->getSignal()->connect(boost::bind(&handleRepartition, _2));
+ gSavedSettings.getControl("OctreeAttachmentSizeFactor")->getSignal()->connect(boost::bind(&handleRepartition, _2));
gSavedSettings.getControl("RenderUseTriStrips")->getSignal()->connect(boost::bind(&handleResetVertexBuffersChanged, _2));
gSavedSettings.getControl("RenderAnimateTrees")->getSignal()->connect(boost::bind(&handleResetVertexBuffersChanged, _2));
gSavedSettings.getControl("RenderAvatarVP")->getSignal()->connect(boost::bind(&handleSetShaderChanged, _2));
diff --git a/indra/newview/llviewerdisplay.cpp b/indra/newview/llviewerdisplay.cpp
index 10e96525ce..5dadd2c33b 100644
--- a/indra/newview/llviewerdisplay.cpp
+++ b/indra/newview/llviewerdisplay.cpp
@@ -582,6 +582,7 @@ void display(BOOL rebuild, F32 zoom_factor, int subfield, BOOL for_snapshot)
LLMemType mt_ug(LLMemType::MTYPE_DISPLAY_UPDATE_GEOM);
const F32 max_geom_update_time = 0.005f*10.f*gFrameIntervalSeconds; // 50 ms/second update time
gPipeline.createObjects(max_geom_update_time);
+ gPipeline.processPartitionQ();
gPipeline.updateGeom(max_geom_update_time);
stop_glerror();
}
diff --git a/indra/newview/llviewerobjectlist.cpp b/indra/newview/llviewerobjectlist.cpp
index 78b06b0764..45c6777ae8 100644
--- a/indra/newview/llviewerobjectlist.cpp
+++ b/indra/newview/llviewerobjectlist.cpp
@@ -1497,6 +1497,24 @@ void LLViewerObjectList::shiftObjects(const LLVector3 &offset)
LLWorld::getInstance()->shiftRegions(offset);
}
+void LLViewerObjectList::repartitionObjects()
+{
+ for (vobj_list_t::iterator iter = mObjects.begin(); iter != mObjects.end(); ++iter)
+ {
+ LLViewerObject* objectp = *iter;
+ if (!objectp->isDead())
+ {
+ LLDrawable* drawable = objectp->mDrawable;
+ if (drawable && !drawable->isDead())
+ {
+ drawable->updateBinRadius();
+ drawable->updateSpatialExtents();
+ drawable->movePartition();
+ }
+ }
+ }
+}
+
//debug code
bool LLViewerObjectList::hasMapObjectInRegion(LLViewerRegion* regionp)
{
diff --git a/indra/newview/llviewerobjectlist.h b/indra/newview/llviewerobjectlist.h
index 6f0d285f5d..9d1b5cb56f 100644
--- a/indra/newview/llviewerobjectlist.h
+++ b/indra/newview/llviewerobjectlist.h
@@ -105,6 +105,7 @@ public:
void updateQuota( const LLUUID& objectId, const SelectionQuota& costs );
void shiftObjects(const LLVector3 &offset);
+ void repartitionObjects();
bool hasMapObjectInRegion(LLViewerRegion* regionp) ;
void clearAllMapObjectsInRegion(LLViewerRegion* regionp) ;
diff --git a/indra/newview/llvovolume.cpp b/indra/newview/llvovolume.cpp
index 943de669f6..cc443d32fb 100644
--- a/indra/newview/llvovolume.cpp
+++ b/indra/newview/llvovolume.cpp
@@ -1245,7 +1245,19 @@ BOOL LLVOVolume::calcLOD()
if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_LOD_INFO))
{
- setDebugText(llformat("%.2f:%.2f, %d", debug_distance, radius, cur_detail));
+ //setDebugText(llformat("%.2f:%.2f, %d", debug_distance, radius, cur_detail));
+
+ F32 bin_radius = getBinRadius();
+ F32 node_size = 0.f;
+
+ LLSpatialGroup* group = mDrawable->getSpatialGroup();
+ if (group)
+ {
+ LLSpatialGroup::OctreeNode* node = group->mOctreeNode;
+ node_size = node->getSize()[0];
+ }
+
+ setDebugText(llformat("%.2f:%.2f", bin_radius, node_size));
}
if (cur_detail != mLOD)
@@ -1274,6 +1286,15 @@ BOOL LLVOVolume::updateLOD()
gPipeline.markRebuild(mDrawable, LLDrawable::REBUILD_VOLUME, FALSE);
mLODChanged = TRUE;
}
+ else
+ {
+ F32 new_radius = getBinRadius();
+ F32 old_radius = mDrawable->getBinRadius();
+ if (new_radius < old_radius * 0.9f || new_radius > old_radius*1.1f)
+ {
+ gPipeline.markPartitionMove(mDrawable);
+ }
+ }
lod_changed = lod_changed || LLViewerObject::updateLOD();
@@ -3187,6 +3208,10 @@ F32 LLVOVolume::getBinRadius()
F32 scale = 1.f;
+ S32 size_factor = llmax(gSavedSettings.getS32("OctreeStaticObjectSizeFactor"), 1);
+ S32 attachment_size_factor = llmax(gSavedSettings.getS32("OctreeAttachmentSizeFactor"), 1);
+ LLVector3 distance_factor = gSavedSettings.getVector3("OctreeDistanceFactor");
+ LLVector3 alpha_distance_factor = gSavedSettings.getVector3("OctreeAlphaDistanceFactor");
const LLVector4a* ext = mDrawable->getSpatialExtents();
BOOL shrink_wrap = mDrawable->isAnimating();
@@ -3216,6 +3241,8 @@ F32 LLVOVolume::getBinRadius()
radius = llmin(bounds.mV[1], bounds.mV[2]);
radius = llmin(radius, bounds.mV[0]);
radius *= 0.5f;
+ radius *= 1.f+mDrawable->mDistanceWRTCamera*alpha_distance_factor[1];
+ radius += mDrawable->mDistanceWRTCamera*alpha_distance_factor[0];
}
else if (shrink_wrap)
{
@@ -3226,24 +3253,19 @@ F32 LLVOVolume::getBinRadius()
}
else if (mDrawable->isStatic())
{
- /*if (mDrawable->getRadius() < 2.0f)
- {
- radius = 16.f;
- }
- else
- {
- radius = llmax(mDrawable->getRadius(), 32.f);
- }*/
-
- radius = (((S32) mDrawable->getRadius())/2+1)*8;
+ radius = llmax((S32) mDrawable->getRadius(), 1)*size_factor;
+ radius *= 1.f + mDrawable->mDistanceWRTCamera * distance_factor[1];
+ radius += mDrawable->mDistanceWRTCamera * distance_factor[0];
}
else if (mDrawable->getVObj()->isAttachment())
{
- radius = (((S32) (mDrawable->getRadius()*4)+1))*2;
+ radius = llmax((S32) mDrawable->getRadius(),1)*attachment_size_factor;
}
else
{
- radius = 8.f;
+ radius = mDrawable->getRadius();
+ radius *= 1.f + mDrawable->mDistanceWRTCamera * distance_factor[1];
+ radius += mDrawable->mDistanceWRTCamera * distance_factor[0];
}
return llclamp(radius*scale, 0.5f, 256.f);
diff --git a/indra/newview/pipeline.cpp b/indra/newview/pipeline.cpp
index 1214d1b545..fadae7c71e 100644
--- a/indra/newview/pipeline.cpp
+++ b/indra/newview/pipeline.cpp
@@ -392,6 +392,7 @@ void LLPipeline::init()
{
LLMemType mt(LLMemType::MTYPE_PIPELINE_INIT);
+ gOctreeMaxCapacity = gSavedSettings.getU32("OctreeMaxNodeCapacity");
sDynamicLOD = gSavedSettings.getBOOL("RenderDynamicLOD");
sRenderBump = gSavedSettings.getBOOL("RenderObjectBump");
sUseTriStrips = gSavedSettings.getBOOL("RenderUseTriStrips");
@@ -2519,6 +2520,32 @@ void LLPipeline::markGLRebuild(LLGLUpdate* glu)
}
}
+void LLPipeline::markPartitionMove(LLDrawable* drawable)
+{
+ if (!drawable->isState(LLDrawable::PARTITION_MOVE) &&
+ !drawable->getPositionGroup().equals3(LLVector4a::getZero()))
+ {
+ drawable->setState(LLDrawable::PARTITION_MOVE);
+ mPartitionQ.push_back(drawable);
+ }
+}
+
+void LLPipeline::processPartitionQ()
+{
+ for (LLDrawable::drawable_list_t::iterator iter = mPartitionQ.begin(); iter != mPartitionQ.end(); ++iter)
+ {
+ LLDrawable* drawable = *iter;
+ if (!drawable->isDead())
+ {
+ drawable->updateBinRadius();
+ drawable->movePartition();
+ }
+ drawable->clearState(LLDrawable::PARTITION_MOVE);
+ }
+
+ mPartitionQ.clear();
+}
+
void LLPipeline::markRebuild(LLSpatialGroup* group, BOOL priority)
{
LLMemType mt(LLMemType::MTYPE_PIPELINE);
@@ -5888,7 +5915,6 @@ LLSpatialPartition* LLPipeline::getSpatialPartition(LLViewerObject* vobj)
return NULL;
}
-
void LLPipeline::resetVertexBuffers(LLDrawable* drawable)
{
if (!drawable || drawable->isDead())
diff --git a/indra/newview/pipeline.h b/indra/newview/pipeline.h
index ed4a803e7e..e967b8c31e 100644
--- a/indra/newview/pipeline.h
+++ b/indra/newview/pipeline.h
@@ -157,7 +157,8 @@ public:
void markGLRebuild(LLGLUpdate* glu);
void markRebuild(LLSpatialGroup* group, BOOL priority = FALSE);
void markRebuild(LLDrawable *drawablep, LLDrawable::EDrawableFlags flag = LLDrawable::REBUILD_ALL, BOOL priority = FALSE);
-
+ void markPartitionMove(LLDrawable* drawablep);
+
//get the object between start and end that's closest to start.
LLViewerObject* lineSegmentIntersectInWorld(const LLVector3& start, const LLVector3& end,
BOOL pick_transparent,
@@ -211,6 +212,7 @@ public:
void updateCull(LLCamera& camera, LLCullResult& result, S32 water_clip = 0, LLPlane* plane = NULL); //if water_clip is 0, ignore water plane, 1, cull to above plane, -1, cull to below plane
void createObjects(F32 max_dtime);
void createObject(LLViewerObject* vobj);
+ void processPartitionQ();
void updateGeom(F32 max_dtime);
void updateGL();
void rebuildPriorityGroups();
@@ -636,6 +638,9 @@ protected:
LLDrawable::drawable_list_t mBuildQ2; // non-priority
LLSpatialGroup::sg_vector_t mGroupQ1; //priority
LLSpatialGroup::sg_vector_t mGroupQ2; // non-priority
+
+ LLDrawable::drawable_list_t mPartitionQ; //drawables that need to update their spatial partition radius
+
bool mGroupQ2Locked;
bool mGroupQ1Locked;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 03:51:38 +0000