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phoenix-firestorm/indra/newview/llspatialpartition.cpp

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/**
* @file llspatialpartition.cpp
* @brief LLSpatialGroup class implementation and supporting functions
*
* Copyright (c) 2003-$CurrentYear$, Linden Research, Inc.
* $License$
*/
#include "llviewerprecompiledheaders.h"
#include "llspatialpartition.h"
#include "llviewerwindow.h"
#include "llviewerobjectlist.h"
#include "llvovolume.h"
#include "llviewercamera.h"
#include "llface.h"
#include "viewer.h"
#include "llagent.h"
#include "llviewerregion.h"
#include "llcamera.h"
#include "pipeline.h"
static GLuint sBoxList = 0;
const F32 SG_OCCLUSION_FUDGE = 1.01f;
//const S32 SG_LOD_PERIOD = 16;
#define SG_DISCARD_TOLERANCE 0.25f
#if LL_OCTREE_PARANOIA_CHECK
#define assert_octree_valid(x) x->validate()
#else
#define assert_octree_valid(x)
#endif
static U32 sZombieGroups = 0;
static F32 sLastMaxTexPriority = 1.f;
static F32 sCurMaxTexPriority = 1.f;
//static counter for frame to switch LOD on
void sg_assert(BOOL expr)
{
#if LL_OCTREE_PARANOIA_CHECK
if (!expr)
{
llerrs << "Octree invalid!" << llendl;
}
#endif
}
#if !LL_RELEASE_FOR_DOWNLOAD
void validate_drawable(LLDrawable* drawablep)
{
F64 rad = drawablep->getBinRadius();
const LLVector3* ext = drawablep->getSpatialExtents();
if (rad < 0 || rad > 4096 ||
(ext[1]-ext[0]).magVec() > 4096)
{
llwarns << "Invalid drawable found in octree." << llendl;
}
}
#else
#define validate_drawable(x)
#endif
BOOL earlyFail(LLCamera* camera, LLSpatialGroup* group);
BOOL LLLineSegmentAABB(const LLVector3& start, const LLVector3& end, const LLVector3& center, const LLVector3& size)
{
float fAWdU[3];
LLVector3 dir;
LLVector3 diff;
for (U32 i = 0; i < 3; i++)
{
dir.mV[i] = 0.5f * (end.mV[i] - start.mV[i]);
diff.mV[i] = (0.5f * (end.mV[i] + start.mV[i])) - center.mV[i];
fAWdU[i] = fabsf(dir.mV[i]);
if(fabsf(diff.mV[i])>size.mV[i] + fAWdU[i]) return false;
}
float f;
f = dir.mV[1] * diff.mV[2] - dir.mV[2] * diff.mV[1]; if(fabsf(f)>size.mV[1]*fAWdU[2] + size.mV[2]*fAWdU[1]) return false;
f = dir.mV[2] * diff.mV[0] - dir.mV[0] * diff.mV[2]; if(fabsf(f)>size.mV[0]*fAWdU[2] + size.mV[2]*fAWdU[0]) return false;
f = dir.mV[0] * diff.mV[1] - dir.mV[1] * diff.mV[0]; if(fabsf(f)>size.mV[0]*fAWdU[1] + size.mV[1]*fAWdU[0]) return false;
return true;
}
//returns:
// 0 if sphere and AABB are not intersecting
// 1 if they are
// 2 if AABB is entirely inside sphere
S32 LLSphereAABB(const LLVector3& center, const LLVector3& size, const LLVector3& pos, const F32 &rad)
{
S32 ret = 2;
LLVector3 min = center - size;
LLVector3 max = center + size;
for (U32 i = 0; i < 3; i++)
{
if (min.mV[i] > pos.mV[i] + rad ||
max.mV[i] < pos.mV[i] - rad)
{ //totally outside
return 0;
}
if (min.mV[i] < pos.mV[i] - rad ||
max.mV[i] > pos.mV[i] + rad)
{ //intersecting
ret = 1;
}
}
return ret;
}
LLSpatialGroup::~LLSpatialGroup()
{
if (isState(DEAD))
{
sZombieGroups--;
}
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
clearDrawMap();
}
void LLSpatialGroup::clearDrawMap()
{
for (LLSpatialGroup::draw_map_t::iterator i = mDrawMap.begin(); i != mDrawMap.end(); ++i)
{
std::for_each(i->second.begin(), i->second.end(), DeletePointer());
}
mDrawMap.clear();
}
class LLRelightPainter : public LLSpatialGroup::OctreeTraveler
{
public:
LLVector3 mOrigin, mDir;
F32 mRadius;
LLRelightPainter(LLVector3 origin, LLVector3 dir, F32 radius)
: mOrigin(origin), mDir(dir), mRadius(radius)
{ }
virtual void traverse(const LLSpatialGroup::TreeNode* n)
{
LLSpatialGroup::OctreeNode* node = (LLSpatialGroup::OctreeNode*) n;
LLSpatialGroup* group = (LLSpatialGroup*) node->getListener(0);
group->setState(LLSpatialGroup::RESHADOW);
for (U32 i = 0; i < node->getChildCount(); i++)
{
const LLSpatialGroup::OctreeNode* child = node->getChild(i);
LLSpatialGroup* group = (LLSpatialGroup*) child->getListener(0);
LLVector3 res;
LLVector3 center, size;
center = group->mBounds[0];
size = group->mBounds[1];
if (child->isInside(LLVector3d(mOrigin)) || LLRayAABB(center, size, mOrigin, mDir, res, mRadius))
{
traverse(child);
}
}
}
virtual void visit(const LLSpatialGroup::OctreeState* branch) { }
};
BOOL LLSpatialGroup::isVisible()
{
if (LLPipeline::sUseOcclusion)
{
return !isState(CULLED | OCCLUDED);
}
else
{
return !isState(CULLED);
}
}
void LLSpatialGroup::validate()
{
#if LL_OCTREE_PARANOIA_CHECK
sg_assert(!isState(DIRTY));
sg_assert(!isDead());
LLVector3 myMin = mBounds[0] - mBounds[1];
LLVector3 myMax = mBounds[0] + mBounds[1];
validateDrawMap();
for (element_iter i = getData().begin(); i != getData().end(); ++i)
{
LLDrawable* drawable = *i;
sg_assert(drawable->getSpatialGroup() == this);
if (drawable->getSpatialBridge())
{
sg_assert(drawable->getSpatialBridge() == mSpatialPartition->asBridge());
}
if (drawable->isSpatialBridge())
{
LLSpatialPartition* part = drawable->asPartition();
if (!part)
{
llerrs << "Drawable reports it is a spatial bridge but not a partition." << llendl;
}
LLSpatialGroup* group = (LLSpatialGroup*) part->mOctree->getListener(0);
group->validate();
}
}
for (U32 i = 0; i < mOctreeNode->getChildCount(); ++i)
{
LLSpatialGroup* group = (LLSpatialGroup*) mOctreeNode->getChild(i)->getListener(0);
group->validate();
//ensure all children are enclosed in this node
LLVector3 center = group->mBounds[0];
LLVector3 size = group->mBounds[1];
LLVector3 min = center - size;
LLVector3 max = center + size;
for (U32 j = 0; j < 3; j++)
{
sg_assert(min.mV[j] >= myMin.mV[j]-0.02f);
sg_assert(max.mV[j] <= myMax.mV[j]+0.02f);
}
}
#endif
}
void validate_draw_info(LLDrawInfo& params)
{
#if LL_OCTREE_PARANOIA_CHECK
if (params.mVertexBuffer.isNull())
{
llerrs << "Draw batch has no vertex buffer." << llendl;
}
//bad range
if (params.mStart >= params.mEnd)
{
llerrs << "Draw batch has invalid range." << llendl;
}
if (params.mEnd >= (U32) params.mVertexBuffer->getNumVerts())
{
llerrs << "Draw batch has buffer overrun error." << llendl;
}
if (params.mOffset + params.mCount > (U32) params.mVertexBuffer->getNumIndices())
{
llerrs << "Draw batch has index buffer ovverrun error." << llendl;
}
//bad indices
U32* indicesp = (U32*) params.mVertexBuffer->getIndicesPointer();
if (indicesp)
{
for (U32 i = params.mOffset; i < params.mOffset+params.mCount; i++)
{
if (indicesp[i] < params.mStart)
{
llerrs << "Draw batch has vertex buffer index out of range error (index too low)." << llendl;
}
if (indicesp[i] > params.mEnd)
{
llerrs << "Draw batch has vertex buffer index out of range error (index too high)." << llendl;
}
}
}
#endif
}
void LLSpatialGroup::validateDrawMap()
{
#if LL_OCTREE_PARANOIA_CHECK
for (draw_map_t::iterator i = mDrawMap.begin(); i != mDrawMap.end(); ++i)
{
std::vector<LLDrawInfo*>& draw_vec = i->second;
for (std::vector<LLDrawInfo*>::iterator j = draw_vec.begin(); j != draw_vec.end(); ++j)
{
LLDrawInfo& params = **j;
validate_draw_info(params);
}
}
#endif
}
void LLSpatialGroup::makeStatic()
{
#if !LL_DARWIN
if (isState(GEOM_DIRTY | ALPHA_DIRTY))
{
return;
}
if (mSpatialPartition->mRenderByGroup && mBufferUsage != GL_STATIC_DRAW_ARB)
{
mBufferUsage = GL_STATIC_DRAW_ARB;
if (mVertexBuffer.notNull())
{
mVertexBuffer->makeStatic();
}
for (buffer_map_t::iterator i = mBufferMap.begin(); i != mBufferMap.end(); ++i)
{
i->second->makeStatic();
}
mBuilt = 1.f;
}
#endif
}
BOOL LLSpatialGroup::updateInGroup(LLDrawable *drawablep, BOOL immediate)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
drawablep->updateSpatialExtents();
validate_drawable(drawablep);
OctreeNode* parent = mOctreeNode->getOctParent();
if (mOctreeNode->isInside(drawablep->getPositionGroup()) &&
(mOctreeNode->contains(drawablep) ||
(drawablep->getBinRadius() > mOctreeNode->getSize().mdV[0] &&
parent && parent->getElementCount() >= LL_OCTREE_MAX_CAPACITY)))
{
unbound();
setState(OBJECT_DIRTY);
setState(GEOM_DIRTY);
validate_drawable(drawablep);
return TRUE;
}
return FALSE;
}
BOOL LLSpatialGroup::addObject(LLDrawable *drawablep, BOOL add_all, BOOL from_octree)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
if (!from_octree)
{
mOctreeNode->insert(drawablep);
}
else
{
drawablep->setSpatialGroup(this);
validate_drawable(drawablep);
setState(OBJECT_DIRTY | GEOM_DIRTY);
mLastAddTime = gFrameTimeSeconds;
if (drawablep->isSpatialBridge())
{
mBridgeList.push_back((LLSpatialBridge*) drawablep);
}
if (drawablep->getRadius() > 1.f)
{
setState(IMAGE_DIRTY);
}
}
return TRUE;
}
void LLSpatialGroup::rebuildGeom()
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
if (!isDead())
{
mSpatialPartition->rebuildGeom(this);
}
}
void LLSpatialPartition::rebuildGeom(LLSpatialGroup* group)
{
if (group->changeLOD())
{
group->mLastUpdateDistance = group->mDistance;
group->mLastUpdateViewAngle = group->mViewAngle;
}
if (group->isDead() || !group->isState(LLSpatialGroup::GEOM_DIRTY))
{
return;
}
LLFastTimer ftm(LLFastTimer::FTM_REBUILD_VBO);
group->clearDrawMap();
//get geometry count
group->mIndexCount = 0;
group->mVertexCount = 0;
addGeometryCount(group, group->mVertexCount, group->mIndexCount);
if (group->mVertexCount > 0 && group->mIndexCount > 0)
{ //create vertex buffer containing volume geometry for this node
group->mBuilt = 1.f;
if (group->mVertexBuffer.isNull() || (group->mBufferUsage != group->mVertexBuffer->getUsage() && LLVertexBuffer::sEnableVBOs))
{
//LLFastTimer ftm(LLFastTimer::FTM_REBUILD_NONE_VB);
group->mVertexBuffer = createVertexBuffer(mVertexDataMask, group->mBufferUsage);
group->mVertexBuffer->allocateBuffer(group->mVertexCount, group->mIndexCount, true);
stop_glerror();
}
else
{
//LLFastTimer ftm(LLFastTimer::FTM_REBUILD_NONE_VB);
group->mVertexBuffer->resizeBuffer(group->mVertexCount, group->mIndexCount);
stop_glerror();
}
{
LLFastTimer ftm((LLFastTimer::EFastTimerType) ((U32) LLFastTimer::FTM_REBUILD_VOLUME_VB + mPartitionType));
getGeometry(group);
}
}
else
{
group->mVertexBuffer = NULL;
group->mBufferMap.clear();
}
group->mLastUpdateTime = gFrameTimeSeconds;
group->clearState(LLSpatialGroup::GEOM_DIRTY | LLSpatialGroup::MATRIX_DIRTY);
}
BOOL LLSpatialGroup::boundObjects(BOOL empty, LLVector3& minOut, LLVector3& maxOut)
{
const OctreeState* node = mOctreeNode->getOctState();
if (node->getData().empty())
{ //don't do anything if there are no objects
if (empty && mOctreeNode->getParent())
{ //only root is allowed to be empty
OCT_ERRS << "Empty leaf found in octree." << llendl;
}
return FALSE;
}
LLVector3& newMin = mObjectExtents[0];
LLVector3& newMax = mObjectExtents[1];
if (isState(OBJECT_DIRTY))
{ //calculate new bounding box
clearState(OBJECT_DIRTY);
//initialize bounding box to first element
OctreeState::const_element_iter i = node->getData().begin();
LLDrawable* drawablep = *i;
const LLVector3* minMax = drawablep->getSpatialExtents();
newMin.setVec(minMax[0]);
newMax.setVec(minMax[1]);
for (++i; i != node->getData().end(); ++i)
{
drawablep = *i;
minMax = drawablep->getSpatialExtents();
//bin up the object
for (U32 i = 0; i < 3; i++)
{
if (minMax[0].mV[i] < newMin.mV[i])
{
newMin.mV[i] = minMax[0].mV[i];
}
if (minMax[1].mV[i] > newMax.mV[i])
{
newMax.mV[i] = minMax[1].mV[i];
}
}
}
mObjectBounds[0] = (newMin + newMax) * 0.5f;
mObjectBounds[1] = (newMax - newMin) * 0.5f;
}
if (empty)
{
minOut = newMin;
maxOut = newMax;
}
else
{
for (U32 i = 0; i < 3; i++)
{
if (newMin.mV[i] < minOut.mV[i])
{
minOut.mV[i] = newMin.mV[i];
}
if (newMax.mV[i] > maxOut.mV[i])
{
maxOut.mV[i] = newMax.mV[i];
}
}
}
return TRUE;
}
void LLSpatialGroup::unbound()
{
if (isState(DIRTY))
{
return;
}
setState(DIRTY);
//all the parent nodes need to rebound this child
if (mOctreeNode)
{
OctreeNode* parent = (OctreeNode*) mOctreeNode->getParent();
while (parent != NULL)
{
LLSpatialGroup* group = (LLSpatialGroup*) parent->getListener(0);
if (group->isState(DIRTY))
{
return;
}
group->setState(DIRTY);
parent = (OctreeNode*) parent->getParent();
}
}
}
LLSpatialGroup* LLSpatialGroup::getParent()
{
if (isDead())
{
return NULL;
}
OctreeNode* parent = mOctreeNode->getOctParent();
if (parent)
{
return (LLSpatialGroup*) parent->getListener(0);
}
return NULL;
}
BOOL LLSpatialGroup::removeObject(LLDrawable *drawablep, BOOL from_octree)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
unbound();
if (mOctreeNode && !from_octree)
{
if (!mOctreeNode->remove(drawablep))
{
OCT_ERRS << "Could not remove drawable from spatial group" << llendl;
}
}
else
{
drawablep->setSpatialGroup(NULL);
setState(GEOM_DIRTY);
if (drawablep->isSpatialBridge())
{
for (bridge_list_t::iterator i = mBridgeList.begin(); i != mBridgeList.end(); ++i)
{
if (*i == drawablep)
{
mBridgeList.erase(i);
break;
}
}
}
}
return TRUE;
}
void LLSpatialGroup::shift(const LLVector3 &offset)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
LLVector3d offsetd(offset);
mOctreeNode->setCenter(mOctreeNode->getCenter()+offsetd);
mOctreeNode->updateMinMax();
mBounds[0] += offset;
mExtents[0] += offset;
mExtents[1] += offset;
mObjectBounds[0] += offset;
mObjectExtents[0] += offset;
mObjectExtents[1] += offset;
setState(GEOM_DIRTY | MATRIX_DIRTY | OCCLUSION_DIRTY);
}
class LLSpatialSetState : public LLSpatialGroup::OctreeTraveler
{
public:
U32 mState;
LLSpatialSetState(U32 state) : mState(state) { }
virtual void visit(const LLSpatialGroup::OctreeState* branch) { ((LLSpatialGroup*) branch->getListener(0))->setState(mState); }
};
class LLSpatialSetStateDiff : public LLSpatialSetState
{
public:
LLSpatialSetStateDiff(U32 state) : LLSpatialSetState(state) { }
virtual void traverse(const LLSpatialGroup::TreeNode* n)
{
LLSpatialGroup* group = (LLSpatialGroup*) n->getListener(0);
if (!group->isState(mState))
{
LLSpatialGroup::OctreeTraveler::traverse(n);
}
}
};
void LLSpatialGroup::setState(U32 state, S32 mode)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
if (mode > STATE_MODE_SINGLE)
{
if (mode == STATE_MODE_DIFF)
{
LLSpatialSetStateDiff setter(state);
setter.traverse(mOctreeNode);
}
else
{
LLSpatialSetState setter(state);
setter.traverse(mOctreeNode);
}
}
else
{
mState |= state;
}
}
class LLSpatialClearState : public LLSpatialGroup::OctreeTraveler
{
public:
U32 mState;
LLSpatialClearState(U32 state) : mState(state) { }
virtual void visit(const LLSpatialGroup::OctreeState* branch) { ((LLSpatialGroup*) branch->getListener(0))->clearState(mState); }
};
class LLSpatialClearStateDiff : public LLSpatialClearState
{
public:
LLSpatialClearStateDiff(U32 state) : LLSpatialClearState(state) { }
virtual void traverse(const LLSpatialGroup::TreeNode* n)
{
LLSpatialGroup* group = (LLSpatialGroup*) n->getListener(0);
if (!group->isState(mState))
{
LLSpatialGroup::OctreeTraveler::traverse(n);
}
}
};
void LLSpatialGroup::clearState(U32 state, S32 mode)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
if (mode > STATE_MODE_SINGLE)
{
if (mode == STATE_MODE_DIFF)
{
LLSpatialClearStateDiff clearer(state);
clearer.traverse(mOctreeNode);
}
else
{
LLSpatialClearState clearer(state);
clearer.traverse(mOctreeNode);
}
}
else
{
mState &= ~state;
}
#if LL_OCTREE_PARANOIA_CHECK
if (state & LLSpatialGroup::ACTIVE_OCCLUSION)
{
LLSpatialPartition* part = mSpatialPartition;
for (U32 i = 0; i < part->mOccludedList.size(); i++)
{
if (part->mOccludedList[i] == this)
{
llerrs << "LLSpatialGroup state error: " << mState << llendl;
}
}
}
#endif
}
//======================================
// Octree Listener Implementation
//======================================
LLSpatialGroup::LLSpatialGroup(OctreeNode* node, LLSpatialPartition* part) :
mState(0),
mBuilt(0.f),
mOctreeNode(node),
mSpatialPartition(part),
mVertexBuffer(NULL),
mBufferUsage(GL_STATIC_DRAW_ARB),
mDistance(0.f),
mDepth(0.f),
mLastUpdateDistance(-1.f),
mLastUpdateTime(gFrameTimeSeconds),
mLastAddTime(gFrameTimeSeconds),
mLastRenderTime(gFrameTimeSeconds),
mViewAngle(0.f),
mLastUpdateViewAngle(-1.f)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
sg_assert(mOctreeNode->getListenerCount() == 0);
mOctreeNode->addListener(this);
setState(SG_INITIAL_STATE_MASK);
mBounds[0] = LLVector3(node->getCenter());
mBounds[1] = LLVector3(node->getSize());
part->mLODSeed = (part->mLODSeed+1)%part->mLODPeriod;
mLODHash = part->mLODSeed;
mRadius = 1;
mPixelArea = 1024.f;
}
void LLSpatialGroup::updateDistance(LLCamera &camera)
{
#if !LL_RELEASE_FOR_DOWNLOAD
if (isState(LLSpatialGroup::OBJECT_DIRTY))
{
llerrs << "Spatial group dirty on distance update." << llendl;
}
#endif
if (!getData().empty())
{
mRadius = mSpatialPartition->mRenderByGroup ? mObjectBounds[1].magVec() :
(F32) mOctreeNode->getSize().magVec();
mDistance = mSpatialPartition->calcDistance(this, camera);
mPixelArea = mSpatialPartition->calcPixelArea(this, camera);
}
}
F32 LLSpatialPartition::calcDistance(LLSpatialGroup* group, LLCamera& camera)
{
LLVector3 eye = group->mObjectBounds[0] - camera.getOrigin();
F32 dist = 0.f;
if (group->mDrawMap.find(LLRenderPass::PASS_ALPHA) != group->mDrawMap.end())
{
LLVector3 v = eye;
dist = eye.normVec();
if (!group->isState(LLSpatialGroup::ALPHA_DIRTY))
{
LLVector3 view_angle = LLVector3(eye * LLVector3(1,0,0),
eye * LLVector3(0,1,0),
eye * LLVector3(0,0,1));
if ((view_angle-group->mLastUpdateViewAngle).magVec() > 0.64f)
{
group->mViewAngle = view_angle;
group->mLastUpdateViewAngle = view_angle;
//for occasional alpha sorting within the group
//NOTE: If there is a trivial way to detect that alpha sorting here would not change the render order,
//not setting this node to dirty would be a very good thing
group->setState(LLSpatialGroup::ALPHA_DIRTY);
}
}
//calculate depth of node for alpha sorting
LLVector3 at = camera.getAtAxis();
//front of bounding box
for (U32 i = 0; i < 3; i++)
{
v.mV[i] -= group->mObjectBounds[1].mV[i]*0.25f * at.mV[i];
}
group->mDepth = v * at;
F32 water_height = gAgent.getRegion()->getWaterHeight();
//figure out if this node is above or below water
if (group->mObjectBounds[0].mV[2] < water_height)
{
group->setState(LLSpatialGroup::BELOW_WATER);
}
else
{
group->clearState(LLSpatialGroup::BELOW_WATER);
}
}
else
{
dist = eye.magVec();
}
if (dist < 16.f)
{
dist /= 16.f;
dist *= dist;
dist *= 16.f;
}
return dist;
}
F32 LLSpatialPartition::calcPixelArea(LLSpatialGroup* group, LLCamera& camera)
{
return LLPipeline::calcPixelArea(group->mObjectBounds[0], group->mObjectBounds[1], camera);
}
BOOL LLSpatialGroup::changeLOD()
{
if (isState(ALPHA_DIRTY))
{ ///an alpha sort is going to happen, update distance and LOD
return TRUE;
}
if (mSpatialPartition->mSlopRatio > 0.f)
{
F32 ratio = (mDistance - mLastUpdateDistance)/(llmax(mLastUpdateDistance, mRadius));
if (fabsf(ratio) >= mSpatialPartition->mSlopRatio)
{
return TRUE;
}
if (mDistance > mRadius)
{
return FALSE;
}
}
if (LLDrawable::getCurrentFrame()%mSpatialPartition->mLODPeriod == mLODHash)
{
return TRUE;
}
return FALSE;
}
void LLSpatialGroup::handleInsertion(const TreeNode* node, LLDrawable* drawablep)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
addObject(drawablep, FALSE, TRUE);
unbound();
setState(OBJECT_DIRTY);
}
void LLSpatialGroup::handleRemoval(const TreeNode* node, LLDrawable* drawable)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
removeObject(drawable, TRUE);
setState(OBJECT_DIRTY);
}
void LLSpatialGroup::handleDestruction(const TreeNode* node)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
setState(DEAD);
for (element_iter i = getData().begin(); i != getData().end(); ++i)
{
LLDrawable* drawable = *i;
if (drawable->getSpatialGroup() == this)
{
drawable->setSpatialGroup(NULL);
}
}
clearDrawMap();
mOcclusionVerts = NULL;
mVertexBuffer = NULL;
mBufferMap.clear();
sZombieGroups++;
mOctreeNode = NULL;
}
void LLSpatialGroup::handleStateChange(const TreeNode* node)
{
//drop bounding box upon state change
if (mOctreeNode != node)
{
mOctreeNode = (OctreeNode*) node;
}
unbound();
}
void LLSpatialGroup::handleChildAddition(const OctreeNode* parent, OctreeNode* child)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
if (child->getListenerCount() == 0)
{
LLSpatialGroup* group = new LLSpatialGroup(child, mSpatialPartition);
group->setState(mState & SG_STATE_INHERIT_MASK);
}
else
{
OCT_ERRS << "LLSpatialGroup redundancy detected." << llendl;
}
unbound();
}
void LLSpatialGroup::handleChildRemoval(const OctreeNode* parent, const OctreeNode* child)
{
unbound();
}
void LLSpatialGroup::destroyGL()
{
setState(LLSpatialGroup::GEOM_DIRTY |
LLSpatialGroup::OCCLUSION_DIRTY |
LLSpatialGroup::IMAGE_DIRTY);
mLastUpdateTime = gFrameTimeSeconds;
mVertexBuffer = NULL;
mBufferMap.clear();
mOcclusionVerts = NULL;
mReflectionMap = NULL;
clearDrawMap();
for (LLSpatialGroup::element_iter i = getData().begin(); i != getData().end(); ++i)
{
LLDrawable* drawable = *i;
for (S32 j = 0; j < drawable->getNumFaces(); j++)
{
LLFace* facep = drawable->getFace(j);
facep->mVertexBuffer = NULL;
facep->mLastVertexBuffer = NULL;
}
}
}
BOOL LLSpatialGroup::rebound()
{
if (!isState(DIRTY))
{ //return TRUE if we're not empty
return TRUE;
}
LLVector3 oldBounds[2];
if (mSpatialPartition->isVolatile() && isState(QUERY_OUT))
{ //a query has been issued, if our bounding box changes significantly
//we need to discard the issued query
oldBounds[0] = mBounds[0];
oldBounds[1] = mBounds[1];
}
if (mOctreeNode->getChildCount() == 1 && mOctreeNode->getElementCount() == 0)
{
LLSpatialGroup* group = (LLSpatialGroup*) mOctreeNode->getChild(0)->getListener(0);
group->rebound();
//copy single child's bounding box
mBounds[0] = group->mBounds[0];
mBounds[1] = group->mBounds[1];
mExtents[0] = group->mExtents[0];
mExtents[1] = group->mExtents[1];
group->setState(SKIP_FRUSTUM_CHECK);
}
else if (mOctreeNode->hasLeafState())
{ //copy object bounding box if this is a leaf
boundObjects(TRUE, mExtents[0], mExtents[1]);
mBounds[0] = mObjectBounds[0];
mBounds[1] = mObjectBounds[1];
}
else
{
LLVector3& newMin = mExtents[0];
LLVector3& newMax = mExtents[1];
LLSpatialGroup* group = (LLSpatialGroup*) mOctreeNode->getChild(0)->getListener(0);
group->clearState(SKIP_FRUSTUM_CHECK);
group->rebound();
//initialize to first child
newMin = group->mExtents[0];
newMax = group->mExtents[1];
//first, rebound children
for (U32 i = 1; i < mOctreeNode->getChildCount(); i++)
{
group = (LLSpatialGroup*) mOctreeNode->getChild(i)->getListener(0);
group->clearState(SKIP_FRUSTUM_CHECK);
group->rebound();
const LLVector3& max = group->mExtents[1];
const LLVector3& min = group->mExtents[0];
for (U32 j = 0; j < 3; j++)
{
if (max.mV[j] > newMax.mV[j])
{
newMax.mV[j] = max.mV[j];
}
if (min.mV[j] < newMin.mV[j])
{
newMin.mV[j] = min.mV[j];
}
}
}
boundObjects(FALSE, newMin, newMax);
mBounds[0] = (newMin + newMax)*0.5f;
mBounds[1] = (newMax - newMin)*0.5f;
}
if (mSpatialPartition->isVolatile() && isState(QUERY_OUT))
{
for (U32 i = 0; i < 3 && !isState(DISCARD_QUERY); i++)
{
if (fabsf(mBounds[0].mV[i]-oldBounds[0].mV[i]) > SG_DISCARD_TOLERANCE ||
fabsf(mBounds[1].mV[i]-oldBounds[1].mV[i]) > SG_DISCARD_TOLERANCE)
{ //bounding box changed significantly, discard last issued
//occlusion query
setState(DISCARD_QUERY);
}
}
}
setState(OCCLUSION_DIRTY);
clearState(DIRTY);
return TRUE;
}
//==============================================
LLSpatialPartition::LLSpatialPartition(U32 data_mask, BOOL is_volatile, U32 buffer_usage)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
mDrawableType = 0;
mPartitionType = LLPipeline::PARTITION_NONE;
mVolatile = is_volatile;
mLODSeed = 0;
mLODPeriod = 1;
mVertexDataMask = data_mask;
mBufferUsage = buffer_usage;
mDepthMask = FALSE;
mSlopRatio = 0.25f;
mRenderByGroup = TRUE;
mImageEnabled = FALSE;
mOctree = new LLSpatialGroup::OctreeNode(LLVector3d(0,0,0),
LLVector3d(1,1,1),
new LLSpatialGroup::OctreeRoot(), NULL);
new LLSpatialGroup(mOctree, this);
}
LLSpatialPartition::~LLSpatialPartition()
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
for (U32 i = 0; i < mOcclusionQueries.size(); i++)
{
glDeleteQueriesARB(1, (GLuint*)(&(mOcclusionQueries[i])));
}
delete mOctree;
mOctree = NULL;
}
LLSpatialGroup *LLSpatialPartition::put(LLDrawable *drawablep, BOOL was_visible)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
const F32 MAX_MAG = 1000000.f*1000000.f; // 1 million
if (drawablep->getPositionGroup().magVecSquared() > MAX_MAG)
{
#if 0 //ndef LL_RELEASE_FOR_DOWNLOAD
llwarns << "LLSpatialPartition::put Object out of range!" << llendl;
llinfos << drawablep->getPositionGroup() << llendl;
if (drawablep->getVObj())
{
llwarns << "Dumping debugging info: " << llendl;
drawablep->getVObj()->dump();
}
#endif
return NULL;
}
drawablep->updateSpatialExtents();
validate_drawable(drawablep);
//keep drawable from being garbage collected
LLPointer<LLDrawable> ptr = drawablep;
assert_octree_valid(mOctree);
mOctree->insert(drawablep);
assert_octree_valid(mOctree);
LLSpatialGroup::OctreeNode* node = mOctree->getNodeAt(drawablep);
LLSpatialGroup* group = (LLSpatialGroup*) node->getListener(0);
if (was_visible && group->isState(LLSpatialGroup::QUERY_OUT))
{
group->setState(LLSpatialGroup::DISCARD_QUERY);
}
return group;
}
BOOL LLSpatialPartition::remove(LLDrawable *drawablep, LLSpatialGroup *curp)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
drawablep->setSpatialGroup(NULL);
if (!curp->removeObject(drawablep))
{
OCT_ERRS << "Failed to remove drawable from octree!" << llendl;
}
assert_octree_valid(mOctree);
return TRUE;
}
void LLSpatialPartition::move(LLDrawable *drawablep, LLSpatialGroup *curp, BOOL immediate)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
LLFastTimer t(LLFastTimer::FTM_UPDATE_MOVE);
// sanity check submitted by open source user bushing Spatula
// who was seeing crashing here. (See VWR-424 reported by Bunny Mayne)
if (!drawablep) {
OCT_ERRS << "LLSpatialPartition::move was passed a bad drawable." << llendl;
return;
}
BOOL was_visible = curp ? curp->isVisible() : FALSE;
if (curp && curp->mSpatialPartition != this)
{
//keep drawable from being garbage collected
LLPointer<LLDrawable> ptr = drawablep;
if (curp->mSpatialPartition->remove(drawablep, curp))
{
put(drawablep, was_visible);
return;
}
else
{
OCT_ERRS << "Drawable lost between spatial partitions on outbound transition." << llendl;
}
}
if (curp && curp->updateInGroup(drawablep, immediate))
{
// Already updated, don't need to do anything
assert_octree_valid(mOctree);
return;
}
//keep drawable from being garbage collected
LLPointer<LLDrawable> ptr = drawablep;
if (curp && !remove(drawablep, curp))
{
OCT_ERRS << "Move couldn't find existing spatial group!" << llendl;
}
put(drawablep, was_visible);
}
class LLSpatialShift : public LLSpatialGroup::OctreeTraveler
{
public:
LLSpatialShift(LLVector3 offset) : mOffset(offset) { }
virtual void visit(const LLSpatialGroup::OctreeState* branch)
{
((LLSpatialGroup*) branch->getListener(0))->shift(mOffset);
}
LLVector3 mOffset;
};
void LLSpatialPartition::shift(const LLVector3 &offset)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
llinfos << "Shifting octree: " << offset << llendl;
LLSpatialShift shifter(offset);
shifter.traverse(mOctree);
}
BOOL LLSpatialPartition::checkOcclusion(LLSpatialGroup* group, LLCamera* camera)
{
if (LLPipeline::sUseOcclusion &&
!group->isState(LLSpatialGroup::ACTIVE_OCCLUSION | LLSpatialGroup::OCCLUDED) &&
(!camera || !earlyFail(camera, group)))
{
group->setState(LLSpatialGroup::ACTIVE_OCCLUSION);
mQueryQueue.push(group);
return TRUE;
}
return FALSE;
}
class LLOctreeCull : public LLSpatialGroup::OctreeTraveler
{
public:
LLOctreeCull(LLCamera* camera)
: mCamera(camera), mRes(0) { }
virtual bool earlyFail(const LLSpatialGroup* group)
{
if (group->mOctreeNode->getParent() && //never occlusion cull the root node
LLPipeline::sUseOcclusion && //never occlusion cull selection
group->isState(LLSpatialGroup::OCCLUDED))
{
return true;
}
return false;
}
virtual void traverse(const LLSpatialGroup::TreeNode* n)
{
LLSpatialGroup* group = (LLSpatialGroup*) n->getListener(0);
if (earlyFail(group))
{
return;
}
if (mRes == 2 ||
(mRes && group->isState(LLSpatialGroup::SKIP_FRUSTUM_CHECK)))
{ //fully in, just add everything
LLSpatialGroup::OctreeTraveler::traverse(n);
}
else
{
mRes = mCamera->AABBInFrustum(group->mBounds[0], group->mBounds[1]);
if (mRes)
{ //at least partially in, run on down
LLSpatialGroup::OctreeTraveler::traverse(n);
}
else
{
lateFail(group);
}
mRes = 0;
}
}
virtual void lateFail(LLSpatialGroup* group)
{
if (!group->isState(LLSpatialGroup::CULLED))
{ //totally culled, so are all its children
group->setState(LLSpatialGroup::CULLED, LLSpatialGroup::STATE_MODE_DIFF);
}
}
virtual bool checkObjects(const LLSpatialGroup::OctreeState* branch, const LLSpatialGroup* group)
{
if (branch->getElementCount() == 0) //no elements
{
return false;
}
else if (branch->getChildCount() == 0) //leaf state, already checked tightest bounding box
{
return true;
}
else if (mRes == 1 && !mCamera->AABBInFrustum(group->mObjectBounds[0], group->mObjectBounds[1])) //no objects in frustum
{
return false;
}
return true;
}
virtual void preprocess(LLSpatialGroup* group)
{
if (group->isState(LLSpatialGroup::CULLED))
{ //this is the first frame this node is visible
group->clearState(LLSpatialGroup::CULLED);
if (group->mOctreeNode->hasLeafState())
{ //if it's a leaf, force it onto the active occlusion list to prevent
//massive frame stutters
group->mSpatialPartition->checkOcclusion(group, mCamera);
}
}
if (LLPipeline::sDynamicReflections &&
group->mOctreeNode->getSize().mdV[0] == 16.0 &&
group->mDistance < 64.f &&
group->mLastAddTime < gFrameTimeSeconds - 2.f)
{
group->mSpatialPartition->markReimage(group);
}
}
virtual void processGroup(LLSpatialGroup* group)
{
gPipeline.markNotCulled(group, *mCamera);
}
virtual void visit(const LLSpatialGroup::OctreeState* branch)
{
LLSpatialGroup* group = (LLSpatialGroup*) branch->getListener(0);
preprocess(group);
if (checkObjects(branch, group))
{
processGroup(group);
}
}
LLCamera *mCamera;
S32 mRes;
};
class LLOctreeSelect : public LLOctreeCull
{
public:
LLOctreeSelect(LLCamera* camera, std::vector<LLDrawable*>* results)
: LLOctreeCull(camera), mResults(results) { }
virtual bool earlyFail(const LLSpatialGroup* group) { return false; }
virtual void lateFail(LLSpatialGroup* group) { }
virtual void preprocess(LLSpatialGroup* group) { }
virtual void processGroup(LLSpatialGroup* group)
{
LLSpatialGroup::OctreeState* branch = group->mOctreeNode->getOctState();
for (LLSpatialGroup::OctreeState::const_element_iter i = branch->getData().begin(); i != branch->getData().end(); ++i)
{
LLDrawable* drawable = *i;
if (!drawable->isDead())
{
if (drawable->isSpatialBridge())
{
drawable->setVisible(*mCamera, mResults, TRUE);
}
else
{
mResults->push_back(drawable);
}
}
}
}
std::vector<LLDrawable*>* mResults;
};
void genBoxList()
{
if (sBoxList != 0)
{
return;
}
sBoxList = glGenLists(1);
glNewList(sBoxList, GL_COMPILE);
LLVector3 c,r;
c = LLVector3(0,0,0);
r = LLVector3(1,1,1);
glBegin(GL_TRIANGLE_STRIP);
//left front
glVertex3fv((c+r.scaledVec(LLVector3(-1,1,-1))).mV);
glVertex3fv((c+r.scaledVec(LLVector3(-1,1,1))).mV);
//right front
glVertex3fv((c+r.scaledVec(LLVector3(1,1,-1))).mV);
glVertex3fv((c+r.scaledVec(LLVector3(1,1,1))).mV);
//right back
glVertex3fv((c+r.scaledVec(LLVector3(1,-1,-1))).mV);
glVertex3fv((c+r.scaledVec(LLVector3(1,-1,1))).mV);
//left back
glVertex3fv((c+r.scaledVec(LLVector3(-1,-1,-1))).mV);
glVertex3fv((c+r.scaledVec(LLVector3(-1,-1,1))).mV);
//left front
glVertex3fv((c+r.scaledVec(LLVector3(-1,1,-1))).mV);
glVertex3fv((c+r.scaledVec(LLVector3(-1,1,1))).mV);
glEnd();
//bottom
glBegin(GL_TRIANGLE_STRIP);
glVertex3fv((c+r.scaledVec(LLVector3(1,1,-1))).mV);
glVertex3fv((c+r.scaledVec(LLVector3(1,-1,-1))).mV);
glVertex3fv((c+r.scaledVec(LLVector3(-1,1,-1))).mV);
glVertex3fv((c+r.scaledVec(LLVector3(-1,-1,-1))).mV);
glEnd();
//top
glBegin(GL_TRIANGLE_STRIP);
glVertex3fv((c+r.scaledVec(LLVector3(1,1,1))).mV);
glVertex3fv((c+r.scaledVec(LLVector3(-1,1,1))).mV);
glVertex3fv((c+r.scaledVec(LLVector3(1,-1,1))).mV);
glVertex3fv((c+r.scaledVec(LLVector3(-1,-1,1))).mV);
glEnd();
glEndList();
}
void drawBox(const LLVector3& c, const LLVector3& r)
{
genBoxList();
glPushMatrix();
glTranslatef(c.mV[0], c.mV[1], c.mV[2]);
glScalef(r.mV[0], r.mV[1], r.mV[2]);
glCallList(sBoxList);
glPopMatrix();
}
void drawBoxOutline(const LLVector3& pos, const LLVector3& size)
{
LLVector3 v1 = size.scaledVec(LLVector3( 1, 1,1));
LLVector3 v2 = size.scaledVec(LLVector3(-1, 1,1));
LLVector3 v3 = size.scaledVec(LLVector3(-1,-1,1));
LLVector3 v4 = size.scaledVec(LLVector3( 1,-1,1));
glBegin(GL_LINE_LOOP); //top
glVertex3fv((pos+v1).mV);
glVertex3fv((pos+v2).mV);
glVertex3fv((pos+v3).mV);
glVertex3fv((pos+v4).mV);
glEnd();
glBegin(GL_LINE_LOOP); //bottom
glVertex3fv((pos-v1).mV);
glVertex3fv((pos-v2).mV);
glVertex3fv((pos-v3).mV);
glVertex3fv((pos-v4).mV);
glEnd();
glBegin(GL_LINES);
//right
glVertex3fv((pos+v1).mV);
glVertex3fv((pos-v3).mV);
glVertex3fv((pos+v4).mV);
glVertex3fv((pos-v2).mV);
//left
glVertex3fv((pos+v2).mV);
glVertex3fv((pos-v4).mV);
glVertex3fv((pos+v3).mV);
glVertex3fv((pos-v1).mV);
glEnd();
}
class LLOctreeDirty : public LLOctreeTraveler<LLDrawable>
{
public:
virtual void visit(const LLOctreeState<LLDrawable>* state)
{
LLSpatialGroup* group = (LLSpatialGroup*) state->getListener(0);
group->destroyGL();
for (LLSpatialGroup::element_iter i = group->getData().begin(); i != group->getData().end(); ++i)
{
LLDrawable* drawable = *i;
if (drawable->getVObj() && !group->mSpatialPartition->mRenderByGroup)
{
gPipeline.markRebuild(drawable, LLDrawable::REBUILD_ALL, TRUE);
}
}
for (LLSpatialGroup::bridge_list_t::iterator i = group->mBridgeList.begin(); i != group->mBridgeList.end(); ++i)
{
LLSpatialBridge* bridge = *i;
traverse(bridge->mOctree);
}
}
};
void LLSpatialPartition::restoreGL()
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
mOcclusionQueries.clear();
sBoxList = 0;
//generate query ids
while (mOcclusionQueries.size() < mOccludedList.size())
{
GLuint id;
glGenQueriesARB(1, &id);
mOcclusionQueries.push_back(id);
}
for (U32 i = 0; i < mOccludedList.size(); i++)
{ //previously issued queries are now invalid
mOccludedList[i]->setState(LLSpatialGroup::DISCARD_QUERY);
}
genBoxList();
}
void LLSpatialPartition::resetVertexBuffers()
{
LLOctreeDirty dirty;
dirty.traverse(mOctree);
mOcclusionIndices = NULL;
}
S32 LLSpatialPartition::cull(LLCamera &camera, std::vector<LLDrawable *>* results, BOOL for_select)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
{
LLFastTimer ftm(LLFastTimer::FTM_CULL_REBOUND);
LLSpatialGroup* group = (LLSpatialGroup*) mOctree->getListener(0);
group->rebound();
}
if (for_select)
{
LLOctreeSelect selecter(&camera, results);
selecter.traverse(mOctree);
}
else
{
LLFastTimer ftm(LLFastTimer::FTM_FRUSTUM_CULL);
LLOctreeCull culler(&camera);
culler.traverse(mOctree);
}
return 0;
}
class LLOctreeClearOccludedNotActive : public LLSpatialGroup::OctreeTraveler
{
public:
LLOctreeClearOccludedNotActive() { }
virtual void traverse(const LLSpatialGroup::TreeNode* n)
{
LLSpatialGroup* group = (LLSpatialGroup*) n->getListener(0);
if ((!group->isState(LLSpatialGroup::ACTIVE_OCCLUSION)) //|| group->isState(LLSpatialGroup::QUERY_PENDING)
|| group->isState(LLSpatialGroup::DEACTIVATE_OCCLUSION))
{ //the children are all occluded or culled as well
group->clearState(LLSpatialGroup::OCCLUDED);
for (U32 i = 0; i < group->mOctreeNode->getChildCount(); i++)
{
traverse(group->mOctreeNode->getChild(i));
}
}
}
virtual void visit(const LLSpatialGroup::OctreeState* branch) { }
};
class LLQueueNonCulled : public LLSpatialGroup::OctreeTraveler
{
public:
std::queue<LLSpatialGroup*>* mQueue;
LLQueueNonCulled(std::queue<LLSpatialGroup*> *queue) : mQueue(queue) { }
virtual void traverse(const LLSpatialGroup::TreeNode* n)
{
LLSpatialGroup* group = (LLSpatialGroup*) n->getListener(0);
if (group->isState(LLSpatialGroup::OCCLUDED | LLSpatialGroup::CULLED))
{ //the children are all occluded or culled as well
return;
}
if (!group->isState(LLSpatialGroup::IN_QUEUE))
{
group->setState(LLSpatialGroup::IN_QUEUE);
mQueue->push(group);
}
LLSpatialGroup::OctreeTraveler::traverse(n);
}
virtual void visit(const LLSpatialGroup::OctreeState* branch) { }
};
BOOL earlyFail(LLCamera* camera, LLSpatialGroup* group)
{
LLVector3 c = group->mBounds[0];
LLVector3 r = group->mBounds[1]*SG_OCCLUSION_FUDGE + LLVector3(0.2f,0.2f,0.2f);
//if (group->isState(LLSpatialGroup::CULLED)) // ||
if (!camera->AABBInFrustum(c, r))
{
return TRUE;
}
LLVector3 e = camera->getOrigin();
LLVector3 min = c - r;
LLVector3 max = c + r;
for (U32 j = 0; j < 3; j++)
{
if (e.mV[j] < min.mV[j] || e.mV[j] > max.mV[j])
{
return FALSE;
}
}
return TRUE;
}
void LLSpatialPartition::markReimage(LLSpatialGroup* group)
{
if (mImageEnabled && group->isState(LLSpatialGroup::IMAGE_DIRTY))
{
if (!group->isState(LLSpatialGroup::IN_IMAGE_QUEUE))
{
group->setState(LLSpatialGroup::IN_IMAGE_QUEUE);
mImageQueue.push(group);
}
}
}
void LLSpatialPartition::processImagery(LLCamera* camera)
{
if (!mImageEnabled)
{
return;
}
U32 process_count = 1;
while (process_count > 0 && !mImageQueue.empty())
{
LLPointer<LLSpatialGroup> group = mImageQueue.front();
mImageQueue.pop();
group->clearState(LLSpatialGroup::IN_IMAGE_QUEUE);
if (group->isDead())
{
continue;
}
if (LLPipeline::sDynamicReflections)
{
process_count--;
LLVector3 origin = group->mBounds[0];
LLCamera cube_cam;
cube_cam.setOrigin(origin);
cube_cam.setFar(64.f);
LLPointer<LLCubeMap> cube_map = group->mReflectionMap;
group->mReflectionMap = NULL;
if (cube_map.isNull())
{
cube_map = new LLCubeMap();
cube_map->initGL();
}
if (gPipeline.mCubeBuffer == NULL)
{
gPipeline.mCubeBuffer = new LLCubeMap();
gPipeline.mCubeBuffer->initGL();
}
S32 res = gSavedSettings.getS32("RenderReflectionRes");
gPipeline.generateReflectionMap(gPipeline.mCubeBuffer, cube_cam, 128);
gPipeline.blurReflectionMap(gPipeline.mCubeBuffer, cube_map, res);
group->mReflectionMap = cube_map;
group->setState(LLSpatialGroup::GEOM_DIRTY);
}
group->clearState(LLSpatialGroup::IMAGE_DIRTY);
}
}
void validate_occlusion_list(std::vector<LLPointer<LLSpatialGroup> >& occluded_list)
{
#if !LL_RELEASE_FOR_DOWNLOAD
for (U32 i = 0; i < occluded_list.size(); i++)
{
LLSpatialGroup* group = occluded_list[i];
for (U32 j = i+1; j < occluded_list.size(); j++)
{
if (occluded_list[i] == occluded_list[j])
{
llerrs << "Duplicate node in occlusion list." << llendl;
}
}
LLSpatialGroup::OctreeNode* parent = group->mOctreeNode->getOctParent();
while (parent)
{
LLSpatialGroup* parent_group = (LLSpatialGroup*) parent->getListener(0);
if (parent_group->isState(LLSpatialGroup::OCCLUDED))
{
llerrs << "Child node of occluded node in occlusion list (redundant query)." << llendl;
}
parent = parent->getOctParent();
}
}
#endif
}
void LLSpatialPartition::processOcclusion(LLCamera* camera)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
LLSpatialGroup* rootGroup = (LLSpatialGroup*) mOctree->getListener(0);
{
LLFastTimer ftm(LLFastTimer::FTM_CULL_REBOUND);
rootGroup->rebound();
}
//update potentials
if (!rootGroup->isState(LLSpatialGroup::IN_QUEUE))
{
rootGroup->setState(LLSpatialGroup::IN_QUEUE);
mOcclusionQueue.push(rootGroup);
}
const U32 MAX_PULLED = 32;
const U32 MAX_PUSHED = mOcclusionQueue.size();
U32 count = 0;
U32 pcount = 0;
while (pcount < MAX_PUSHED && count < MAX_PULLED && !mOcclusionQueue.empty())
{
LLFastTimer t(LLFastTimer::FTM_OCCLUSION);
LLPointer<LLSpatialGroup> group = mOcclusionQueue.front();
if (!group->isState(LLSpatialGroup::IN_QUEUE))
{
OCT_ERRS << "Spatial Group State Error. Group in queue not tagged as such." << llendl;
}
mOcclusionQueue.pop();
group->clearState(LLSpatialGroup::IN_QUEUE);
if (group->isDead())
{
continue;
}
if (group->isState(LLSpatialGroup::CULLED | LLSpatialGroup::OCCLUDED))
{ //already culled, skip it
continue;
}
//before we process, enqueue this group's children
for (U32 i = 0; i < group->mOctreeNode->getChildCount(); i++)
{
LLSpatialGroup* child = (LLSpatialGroup*) group->mOctreeNode->getChild(i)->getListener(0);
//if (!child->isState(LLSpatialGroup::OCCLUDED | LLSpatialGroup::CULLED)
if (!child->isState(LLSpatialGroup::IN_QUEUE | LLSpatialGroup::ACTIVE_OCCLUSION))
{
child->setState(LLSpatialGroup::IN_QUEUE);
mOcclusionQueue.push(child);
}
}
if (earlyFail(camera, group))
{
sg_assert(!group->isState(LLSpatialGroup::OCCLUDED));
group->setState(LLSpatialGroup::IN_QUEUE);
mOcclusionQueue.push(group);
pcount++;
continue;
}
//add to pending queue
if (!group->isState(LLSpatialGroup::ACTIVE_OCCLUSION))
{
#if LL_OCTREE_PARANOIA_CHECK
for (U32 i = 0; i < mOccludedList.size(); ++i)
{
sg_assert(mOccludedList[i] != group);
}
#endif
group->setState(LLSpatialGroup::ACTIVE_OCCLUSION);
mQueryQueue.push(group);
count++;
}
}
//read back results from last frame
for (U32 i = 0; i < mOccludedList.size(); i++)
{
LLFastTimer t(LLFastTimer::FTM_OCCLUSION_READBACK);
if (mOccludedList[i]->isDead() || mOccludedList[i]->isState(LLSpatialGroup::DEACTIVATE_OCCLUSION))
{
continue;
}
GLuint res = 0;
if (mOccludedList[i]->isState(LLSpatialGroup::EARLY_FAIL | LLSpatialGroup::DISCARD_QUERY) ||
!mOccludedList[i]->isState(LLSpatialGroup::QUERY_OUT))
{
mOccludedList[i]->clearState(LLSpatialGroup::EARLY_FAIL);
mOccludedList[i]->clearState(LLSpatialGroup::DISCARD_QUERY);
res = 1;
}
else
{
glGetQueryObjectuivARB(mOcclusionQueries[i], GL_QUERY_RESULT_ARB, &res);
stop_glerror();
}
if (res) //NOT OCCLUDED
{
if (mOccludedList[i]->isState(LLSpatialGroup::OCCLUDED))
{ //this node was occluded last frame
LLSpatialGroup::OctreeNode* node = mOccludedList[i]->mOctreeNode;
//add any immediate children to the queue that are not already there
for (U32 j = 0; j < node->getChildCount(); j++)
{
LLSpatialGroup* group = (LLSpatialGroup*) node->getChild(j)->getListener(0);
checkOcclusion(group, camera);
}
}
//clear occlusion status for everything not on the active list
LLOctreeClearOccludedNotActive clear_occluded;
mOccludedList[i]->setState(LLSpatialGroup::DEACTIVATE_OCCLUSION);
mOccludedList[i]->clearState(LLSpatialGroup::OCCLUDED);
mOccludedList[i]->clearState(LLSpatialGroup::OCCLUDING);
clear_occluded.traverse(mOccludedList[i]->mOctreeNode);
}
else
{ //OCCLUDED
if (mOccludedList[i]->isState(LLSpatialGroup::OCCLUDING))
{
if (!mOccludedList[i]->isState(LLSpatialGroup::OCCLUDED))
{
LLSpatialGroup::OctreeNode* oct_parent = (LLSpatialGroup::OctreeNode*) mOccludedList[i]->mOctreeNode->getParent();
if (oct_parent)
{
LLSpatialGroup* parent = (LLSpatialGroup*) oct_parent->getListener(0);
if (checkOcclusion(parent, camera))
{ //force a guess on the parent and siblings
for (U32 i = 0; i < parent->mOctreeNode->getChildCount(); i++)
{
LLSpatialGroup* child = (LLSpatialGroup*) parent->mOctreeNode->getChild(i)->getListener(0);
checkOcclusion(child, camera);
}
}
}
//take children off the active list
mOccludedList[i]->setState(LLSpatialGroup::DEACTIVATE_OCCLUSION, LLSpatialGroup::STATE_MODE_BRANCH);
mOccludedList[i]->clearState(LLSpatialGroup::DEACTIVATE_OCCLUSION);
}
mOccludedList[i]->setState(LLSpatialGroup::OCCLUDED, LLSpatialGroup::STATE_MODE_DIFF);
}
else
{
//take children off the active list
mOccludedList[i]->setState(LLSpatialGroup::DEACTIVATE_OCCLUSION, LLSpatialGroup::STATE_MODE_BRANCH);
//keep this node on the active list
mOccludedList[i]->clearState(LLSpatialGroup::DEACTIVATE_OCCLUSION);
//this node is a top level occluder
mOccludedList[i]->setState(LLSpatialGroup::OCCLUDING);
}
}
mOccludedList[i]->clearState(LLSpatialGroup::QUERY_OUT);
}
//remove non-occluded groups from occluded list
for (U32 i = 0; i < mOccludedList.size(); )
{
if (mOccludedList[i]->isDead() || //needs to be deleted
!mOccludedList[i]->isState(LLSpatialGroup::OCCLUDING) || //is not occluding
mOccludedList[i]->isState(LLSpatialGroup::DEACTIVATE_OCCLUSION)) //parent is occluded
{
LLSpatialGroup* groupp = mOccludedList[i];
if (!groupp->isDead())
{
groupp->clearState(LLSpatialGroup::ACTIVE_OCCLUSION);
groupp->clearState(LLSpatialGroup::DEACTIVATE_OCCLUSION);
groupp->clearState(LLSpatialGroup::OCCLUDING);
}
mOccludedList.erase(mOccludedList.begin()+i);
}
else
{
i++;
}
}
validate_occlusion_list(mOccludedList);
//pump some non-culled items onto the occlusion list
//count = MAX_PULLED;
while (!mQueryQueue.empty())
{
LLPointer<LLSpatialGroup> group = mQueryQueue.front();
mQueryQueue.pop();
//group->clearState(LLSpatialGroup::QUERY_PENDING);
mOccludedList.push_back(group);
}
//generate query ids
while (mOcclusionQueries.size() < mOccludedList.size())
{
GLuint id;
glGenQueriesARB(1, &id);
mOcclusionQueries.push_back(id);
}
}
class LLOcclusionIndexBuffer : public LLVertexBuffer
{
public:
LLOcclusionIndexBuffer(U32 size)
: LLVertexBuffer(0, GL_STREAM_DRAW_ARB)
{
allocateBuffer(0, size, TRUE);
LLStrider<U32> idx;
getIndexStrider(idx);
//12 triangles' indices
idx[0] = 1; idx[1] = 0; idx[2] = 2; //front
idx[3] = 3; idx[4] = 2; idx[5] = 0;
idx[6] = 4; idx[7] = 5; idx[8] = 1; //top
idx[9] = 0; idx[10] = 1; idx[11] = 5;
idx[12] = 5; idx[13] = 4; idx[14] = 6; //back
idx[15] = 7; idx[16] = 6; idx[17] = 4;
idx[18] = 6; idx[19] = 7; idx[20] = 3; //bottom
idx[21] = 2; idx[22] = 3; idx[23] = 7;
idx[24] = 0; idx[25] = 5; idx[26] = 3; //left
idx[27] = 6; idx[28] = 3; idx[29] = 5;
idx[30] = 4; idx[31] = 1; idx[32] = 7; //right
idx[33] = 2; idx[34] = 7; idx[35] = 1;
}
//virtual BOOL useVBOs() const { return FALSE; }
void setBuffer(U32 data_mask)
{
if (useVBOs())
{
glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, mGLIndices);
sIBOActive = TRUE;
unmapBuffer();
}
else if (sIBOActive)
{
glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, 0);
sIBOActive = FALSE;
}
sGLRenderIndices = mGLIndices;
}
};
class LLOcclusionVertexBuffer : public LLVertexBuffer
{
public:
LLOcclusionVertexBuffer(S32 usage)
: LLVertexBuffer(MAP_VERTEX, usage)
{
allocateBuffer(8, 0, TRUE);
}
//virtual BOOL useVBOs() const { return FALSE; }
void setBuffer(U32 data_mask)
{
if (useVBOs())
{
glBindBufferARB(GL_ARRAY_BUFFER_ARB, mGLBuffer);
sVBOActive = TRUE;
unmapBuffer();
}
else if (sVBOActive)
{
glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
sVBOActive = FALSE;
}
if (data_mask)
{
glVertexPointer(3,GL_FLOAT, 0, useVBOs() ? 0 : mMappedData);
}
sGLRenderBuffer = mGLBuffer;
}
};
void LLSpatialPartition::buildOcclusion()
{
if (mOccludedList.empty())
{
return;
}
BOOL reset_all = FALSE;
if (mOcclusionIndices.isNull())
{
mOcclusionIndices = new LLOcclusionIndexBuffer(36);
reset_all = TRUE;
}
//fill occlusion vertex buffers
for (U32 i = 0; i < mOccludedList.size(); i++)
{
LLSpatialGroup* group = mOccludedList[i];
if (group->isState(LLSpatialGroup::OCCLUSION_DIRTY) || reset_all)
{
LLFastTimer ftm(LLFastTimer::FTM_REBUILD_OCCLUSION_VB);
if (group->mOcclusionVerts.isNull())
{
group->mOcclusionVerts = new LLOcclusionVertexBuffer(GL_STREAM_DRAW_ARB);
}
group->clearState(LLSpatialGroup::OCCLUSION_DIRTY);
LLStrider<LLVector3> vert;
group->mOcclusionVerts->getVertexStrider(vert);
LLVector3 r = group->mBounds[1]*SG_OCCLUSION_FUDGE + LLVector3(0.1f,0.1f,0.1f);
for (U32 k = 0; k < 3; k++)
{
r.mV[k] = llmin(group->mBounds[1].mV[k]+0.25f, r.mV[k]);
}
*vert++ = group->mBounds[0] + r.scaledVec(LLVector3(-1,1,1)); // 0 - left top front
*vert++ = group->mBounds[0] + r.scaledVec(LLVector3(1,1,1)); // 1 - right top front
*vert++ = group->mBounds[0] + r.scaledVec(LLVector3(1,-1,1)); // 2 - right bottom front
*vert++ = group->mBounds[0] + r.scaledVec(LLVector3(-1,-1,1)); // 3 - left bottom front
*vert++ = group->mBounds[0] + r.scaledVec(LLVector3(1,1,-1)); // 4 - left top back
*vert++ = group->mBounds[0] + r.scaledVec(LLVector3(-1,1,-1)); // 5 - right top back
*vert++ = group->mBounds[0] + r.scaledVec(LLVector3(-1,-1,-1)); // 6 - right bottom back
*vert++ = group->mBounds[0] + r.scaledVec(LLVector3(1,-1,-1)); // 7 -left bottom back
}
}
/* for (U32 i = 0; i < mOccludedList.size(); i++)
{
LLSpatialGroup* group = mOccludedList[i];
if (!group->mOcclusionVerts.isNull() && group->mOcclusionVerts->isLocked())
{
LLFastTimer ftm(LLFastTimer::FTM_REBUILD_OCCLUSION_VB);
group->mOcclusionVerts->setBuffer(0);
}
}*/
}
void LLSpatialPartition::doOcclusion(LLCamera* camera)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
LLFastTimer t(LLFastTimer::FTM_RENDER_OCCLUSION);
#if LL_OCTREE_PARANOIA_CHECK
LLSpatialGroup* check = (LLSpatialGroup*) mOctree->getListener(0);
check->validate();
#endif
stop_glerror();
U32 num_verts = mOccludedList.size() * 8;
if (num_verts == 0)
{
return;
}
//actually perform the occlusion queries
LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
LLGLDisable(GL_TEXTURE_2D);
gPipeline.disableLights();
LLGLEnable cull_face(GL_CULL_FACE);
LLGLDisable blend(GL_BLEND);
LLGLDisable alpha_test(GL_ALPHA_TEST);
LLGLDisable fog(GL_FOG);
glColorMask(GL_FALSE, GL_FALSE, GL_FALSE, GL_FALSE);
glColor4f(1,1,1,1);
mOcclusionIndices->setBuffer(0);
U32* indicesp = (U32*) mOcclusionIndices->getIndicesPointer();
glDisableClientState(GL_NORMAL_ARRAY);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
#if !LL_RELEASE_FOR_DOWNLOAD
LLGLState::checkClientArrays(LLVertexBuffer::MAP_VERTEX);
#endif
for (U32 i = 0; i < mOccludedList.size(); i++)
{
#if LL_OCTREE_PARANOIA_CHECK
for (U32 j = i+1; j < mOccludedList.size(); j++)
{
sg_assert(mOccludedList[i] != mOccludedList[j]);
}
#endif
LLSpatialGroup* group = mOccludedList[i];
if (group->isDead())
{
continue;
}
if (earlyFail(camera, group))
{
group->setState(LLSpatialGroup::EARLY_FAIL);
}
else
{ //early rejection criteria passed, send some geometry to the query
group->mOcclusionVerts->setBuffer(LLVertexBuffer::MAP_VERTEX);
glBeginQueryARB(GL_SAMPLES_PASSED_ARB, mOcclusionQueries[i]);
glDrawRangeElements(GL_TRIANGLES, 0, 7, 36,
GL_UNSIGNED_INT, indicesp);
glEndQueryARB(GL_SAMPLES_PASSED_ARB);
group->setState(LLSpatialGroup::QUERY_OUT);
group->clearState(LLSpatialGroup::DISCARD_QUERY);
}
}
stop_glerror();
gPipeline.mTrianglesDrawn += mOccludedList.size()*12;
glFlush();
glColorMask(GL_TRUE, GL_TRUE, GL_TRUE, GL_FALSE);
}
class LLOctreeGet : public LLSpatialGroup::OctreeTraveler
{
public:
LLOctreeGet(LLVector3 pos, F32 rad, LLDrawable::drawable_set_t* results, BOOL lights)
: mPosition(pos), mRad(rad), mResults(results), mLights(lights), mRes(0)
{
}
virtual void traverse(const LLSpatialGroup::TreeNode* n)
{
LLSpatialGroup* group = (LLSpatialGroup*) n->getListener(0);
if (mRes == 2)
{ //fully in, just add everything
LLSpatialGroup::OctreeTraveler::traverse(n);
}
else
{
LLVector3 center, size;
center = group->mBounds[0];
size = group->mBounds[1];
mRes = LLSphereAABB(center, size, mPosition, mRad);
if (mRes > 0)
{
LLSpatialGroup::OctreeTraveler::traverse(n);
}
mRes = 0;
}
}
static BOOL skip(LLDrawable* drawable, BOOL get_lights)
{
if (get_lights != drawable->isLight())
{
return TRUE;
}
if (get_lights && drawable->getVObj()->isHUDAttachment())
{
return TRUE; // no lighting from HUD objects
}
if (get_lights && drawable->isState(LLDrawable::ACTIVE))
{
return TRUE; // ignore active lights
}
return FALSE;
}
virtual void visit(const LLSpatialGroup::OctreeState* branch)
{
for (LLSpatialGroup::OctreeState::const_element_iter i = branch->getData().begin(); i != branch->getData().end(); ++i)
{
LLDrawable* drawable = *i;
if (!skip(drawable, mLights))
{
if (mRes == 2)
{
mResults->insert(drawable);
}
else
{
LLVector3 v = LLVector3(drawable->getPositionGroup())-mPosition;
float dsq = v.magVecSquared();
float maxd = mRad + drawable->getVisibilityRadius();
if (dsq <= maxd*maxd)
{
mResults->insert(drawable);
}
}
}
}
}
LLVector3 mPosition;
F32 mRad;
LLDrawable::drawable_set_t* mResults;
BOOL mLights;
U32 mRes;
};
S32 LLSpatialPartition::getDrawables(const LLVector3& pos, F32 rad,
LLDrawable::drawable_set_t &results,
BOOL get_lights)
{
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
LLOctreeGet getter(pos, rad, &results, get_lights);
getter.traverse(mOctree);
return results.size();
}
S32 LLSpatialPartition::getObjects(const LLVector3& pos, F32 rad, LLDrawable::drawable_set_t &results)
{
LLSpatialGroup* group = (LLSpatialGroup*) mOctree->getListener(0);
group->rebound();
return getDrawables(pos, rad, results, FALSE);
}
S32 LLSpatialPartition::getLights(const LLVector3& pos, F32 rad, LLDrawable::drawable_set_t &results)
{
return getDrawables(pos, rad, results, TRUE);
}
void pushVerts(LLDrawInfo* params, U32 mask)
{
params->mVertexBuffer->setBuffer(mask);
U32* indicesp = (U32*) params->mVertexBuffer->getIndicesPointer();
glDrawRangeElements(params->mParticle ? GL_POINTS : GL_TRIANGLES, params->mStart, params->mEnd, params->mCount,
GL_UNSIGNED_INT, indicesp+params->mOffset);
}
void pushVerts(LLSpatialGroup* group, U32 mask)
{
LLDrawInfo* params = NULL;
for (LLSpatialGroup::draw_map_t::iterator i = group->mDrawMap.begin(); i != group->mDrawMap.end(); ++i)
{
for (std::vector<LLDrawInfo*>::iterator j = i->second.begin(); j != i->second.end(); ++j)
{
params = *j;
pushVerts(params, mask);
}
}
}
void pushVertsColorCoded(LLSpatialGroup* group, U32 mask)
{
LLDrawInfo* params = NULL;
LLColor4 colors[] = {
LLColor4::green,
LLColor4::green1,
LLColor4::green2,
LLColor4::green3,
LLColor4::green4,
LLColor4::green5,
LLColor4::green6
};
static const U32 col_count = sizeof(colors)/sizeof(LLColor4);
U32 col = 0;
for (LLSpatialGroup::draw_map_t::iterator i = group->mDrawMap.begin(); i != group->mDrawMap.end(); ++i)
{
for (std::vector<LLDrawInfo*>::iterator j = i->second.begin(); j != i->second.end(); ++j)
{
params = *j;
glColor4f(colors[col].mV[0], colors[col].mV[1], colors[col].mV[2], 0.5f);
params->mVertexBuffer->setBuffer(mask);
U32* indicesp = (U32*) params->mVertexBuffer->getIndicesPointer();
glDrawRangeElements(params->mParticle ? GL_POINTS : GL_TRIANGLES, params->mStart, params->mEnd, params->mCount,
GL_UNSIGNED_INT, indicesp+params->mOffset);
col = (col+1)%col_count;
}
}
}
void renderOctree(LLSpatialGroup* group)
{
//render solid object bounding box, color
//coded by buffer usage and activity
LLGLDepthTest depth(GL_TRUE, GL_FALSE);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
LLVector4 col;
if (group->mBuilt > 0.f)
{
group->mBuilt -= 2.f * gFrameIntervalSeconds;
if (group->mBufferUsage == GL_STATIC_DRAW_ARB)
{
col.setVec(1.0f, 0, 0, group->mBuilt*0.5f);
}
else
{
col.setVec(0.1f,0.1f,1,0.1f);
//col.setVec(1.0f, 1.0f, 0, sinf(group->mBuilt*3.14159f)*0.5f);
}
if (group->mBufferUsage != GL_STATIC_DRAW_ARB)
{
if (group->mBufferUsage == GL_DYNAMIC_DRAW_ARB)
{
glColor4f(1,0,0,group->mBuilt);
}
else
{
glColor4f(1,1,0,group->mBuilt);
}
LLGLDepthTest gl_depth(FALSE, FALSE);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
for (LLSpatialGroup::element_iter i = group->getData().begin(); i != group->getData().end(); ++i)
{
LLDrawable* drawable = *i;
for (S32 j = 0; j < drawable->getNumFaces(); j++)
{
LLFace* face = drawable->getFace(j);
if (gFrameTimeSeconds - face->mLastUpdateTime < 0.5f && face->mVertexBuffer.notNull())
{
face->mVertexBuffer->setBuffer(LLVertexBuffer::MAP_VERTEX);
//drawBox((face->mExtents[0] + face->mExtents[1])*0.5f,
// (face->mExtents[1]-face->mExtents[0])*0.5f);
glDrawElements(GL_TRIANGLES, face->getIndicesCount(), GL_UNSIGNED_INT,
((U32*) face->mVertexBuffer->getIndicesPointer())+face->getIndicesStart());
}
}
}
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
}
}
else
{
if (group->mBufferUsage == GL_STATIC_DRAW_ARB && !group->getData().empty()
&& group->mSpatialPartition->mRenderByGroup)
{
col.setVec(0.8f, 0.4f, 0.1f, 0.1f);
}
else
{
col.setVec(0.1f, 0.1f, 1.f, 0.1f);
}
}
glColor4fv(col.mV);
drawBox(group->mObjectBounds[0], group->mObjectBounds[1]*1.01f+LLVector3(0.001f, 0.001f, 0.001f));
glDepthMask(GL_TRUE);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
//draw opaque outline
glColor4f(col.mV[0], col.mV[1], col.mV[2], 1.f);
drawBoxOutline(group->mObjectBounds[0], group->mObjectBounds[1]);
if (group->mOctreeNode->hasLeafState())
{
glColor4f(1,1,1,1);
}
else
{
glColor4f(0,1,1,1);
}
drawBoxOutline(group->mBounds[0],group->mBounds[1]);
// LLSpatialGroup::OctreeNode* node = group->mOctreeNode;
// glColor4f(0,1,0,1);
// drawBoxOutline(LLVector3(node->getCenter()), LLVector3(node->getSize()));
}
void renderVisibility(LLSpatialGroup* group)
{
LLGLEnable blend(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
LLGLEnable cull(GL_CULL_FACE);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
{
LLGLDepthTest depth_under(GL_TRUE, GL_FALSE, GL_GREATER);
glColor4f(0, 0.5f, 0, 0.5f);
pushVerts(group, LLVertexBuffer::MAP_VERTEX);
}
{
LLGLDepthTest depth_over(GL_TRUE, GL_FALSE, GL_LEQUAL);
pushVertsColorCoded(group, LLVertexBuffer::MAP_VERTEX);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
pushVertsColorCoded(group, LLVertexBuffer::MAP_VERTEX);
}
}
void renderBoundingBox(LLDrawable* drawable)
{
if (drawable->isSpatialBridge())
{
glColor4f(1,0.5f,0,1);
}
else if (drawable->getVOVolume())
{
if (drawable->isRoot())
{
glColor4f(1,1,0,1);
}
else
{
glColor4f(0,1,0,1);
}
}
else if (drawable->getVObj())
{
switch (drawable->getVObj()->getPCode())
{
case LLViewerObject::LL_VO_SURFACE_PATCH:
glColor4f(0,1,1,1);
break;
case LLViewerObject::LL_VO_CLOUDS:
glColor4f(0.5f,0.5f,0.5f,1.0f);
break;
case LLViewerObject::LL_VO_PART_GROUP:
glColor4f(0,0,1,1);
break;
case LLViewerObject::LL_VO_WATER:
glColor4f(0,0.5f,1,1);
break;
case LL_PCODE_LEGACY_TREE:
glColor4f(0,0.5f,0,1);
default:
glColor4f(1,0,1,1);
break;
}
}
else
{
glColor4f(1,0,0,1);
}
const LLVector3* ext;
LLVector3 pos, size;
//render face bounding boxes
for (S32 i = 0; i < drawable->getNumFaces(); i++)
{
LLFace* facep = drawable->getFace(i);
ext = facep->mExtents;
if (ext[0].isExactlyZero() && ext[1].isExactlyZero())
{
continue;
}
pos = (ext[0] + ext[1]) * 0.5f;
size = (ext[1] - ext[0]) * 0.5f;
drawBoxOutline(pos,size);
}
//render drawable bounding box
ext = drawable->getSpatialExtents();
pos = (ext[0] + ext[1]) * 0.5f;
size = (ext[1] - ext[0]) * 0.5f;
drawBoxOutline(pos,size);
}
void renderTexturePriority(LLDrawable* drawable)
{
for (int face=0; face<drawable->getNumFaces(); ++face)
{
LLFace *facep = drawable->getFace(face);
LLVector4 cold(0,0,0.25f);
LLVector4 hot(1,0.25f,0.25f);
LLVector4 boost_cold(0,0,0,0);
LLVector4 boost_hot(0,1,0,1);
LLGLDisable blend(GL_BLEND);
//LLViewerImage* imagep = facep->getTexture();
//if (imagep)
{
//F32 vsize = LLVOVolume::getTextureVirtualSize(facep);
//F32 vsize = imagep->mMaxVirtualSize;
F32 vsize = facep->getPixelArea();
if (vsize > sCurMaxTexPriority)
{
sCurMaxTexPriority = vsize;
}
F32 t = vsize/sLastMaxTexPriority;
LLVector4 col = lerp(cold, hot, t);
glColor4fv(col.mV);
}
//else
//{
// glColor4f(1,0,1,1);
//}
LLVector3 center = (facep->mExtents[1]+facep->mExtents[0])*0.5f;
LLVector3 size = (facep->mExtents[1]-facep->mExtents[0])*0.5f + LLVector3(0.01f, 0.01f, 0.01f);
drawBox(center, size);
/*S32 boost = imagep->getBoostLevel();
if (boost)
{
F32 t = (F32) boost / (F32) (LLViewerImage::BOOST_MAX_LEVEL-1);
LLVector4 col = lerp(boost_cold, boost_hot, t);
LLGLEnable blend_on(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
glColor4fv(col.mV);
drawBox(center, size);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}*/
}
}
void renderPoints(LLDrawable* drawablep)
{
LLGLDepthTest depth(GL_FALSE, GL_FALSE);
glBegin(GL_POINTS);
glColor3f(1,1,1);
LLVector3 center(drawablep->getPositionGroup());
for (S32 i = 0; i < drawablep->getNumFaces(); i++)
{
glVertex3fv(drawablep->getFace(i)->mCenterLocal.mV);
}
glEnd();
}
void renderTextureAnim(LLDrawInfo* params)
{
if (!params->mTextureMatrix)
{
return;
}
LLGLEnable blend(GL_BLEND);
glColor4f(1,1,0,0.5f);
pushVerts(params, LLVertexBuffer::MAP_VERTEX);
}
class LLOctreeRenderNonOccluded : public LLOctreeTraveler<LLDrawable>
{
public:
LLOctreeRenderNonOccluded() {}
virtual void traverse(const LLSpatialGroup::OctreeNode* node)
{
const LLSpatialGroup::OctreeState* state = node->getOctState();
LLSpatialGroup* group = (LLSpatialGroup*) node->getListener(0);
if ((!gPipeline.sUseOcclusion || !group->isState(LLSpatialGroup::OCCLUDED)) &&
!group->isState(LLSpatialGroup::CULLED))
{
state->accept(this);
for (U32 i = 0; i < state->getChildCount(); i++)
{
traverse(state->getChild(i));
}
//draw tight fit bounding boxes for spatial group
if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_OCTREE))
{
renderOctree(group);
}
//render visibility wireframe
if (group->mSpatialPartition->mRenderByGroup &&
gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_OCCLUSION) &&
!group->isState(LLSpatialGroup::GEOM_DIRTY))
{
renderVisibility(group);
}
}
}
virtual void visit(const LLSpatialGroup::OctreeState* branch)
{
LLSpatialGroup* group = (LLSpatialGroup*) branch->getListener(0);
if (group->isState(LLSpatialGroup::CULLED | LLSpatialGroup::OCCLUDED))
{
return;
}
LLVector3 nodeCenter = group->mBounds[0];
LLVector3 octCenter = LLVector3(group->mOctreeNode->getCenter());
for (LLSpatialGroup::OctreeState::const_element_iter i = branch->getData().begin(); i != branch->getData().end(); ++i)
{
LLDrawable* drawable = *i;
if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_BBOXES))
{
renderBoundingBox(drawable);
}
if (drawable->getVOVolume() && gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_TEXTURE_PRIORITY))
{
renderTexturePriority(drawable);
}
if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_POINTS))
{
renderPoints(drawable);
}
}
for (LLSpatialGroup::draw_map_t::iterator i = group->mDrawMap.begin(); i != group->mDrawMap.end(); ++i)
{
std::vector<LLDrawInfo*>& draw_vec = i->second;
for (std::vector<LLDrawInfo*>::iterator j = draw_vec.begin(); j != draw_vec.end(); ++j)
{
LLDrawInfo* draw_info = *j;
if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_TEXTURE_ANIM))
{
renderTextureAnim(draw_info);
}
}
}
}
};
void LLSpatialPartition::renderDebug()
{
if (!gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_OCTREE |
LLPipeline::RENDER_DEBUG_OCCLUSION |
LLPipeline::RENDER_DEBUG_BBOXES |
LLPipeline::RENDER_DEBUG_POINTS |
LLPipeline::RENDER_DEBUG_TEXTURE_PRIORITY |
LLPipeline::RENDER_DEBUG_TEXTURE_ANIM))
{
return;
}
if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_TEXTURE_PRIORITY))
{
//sLastMaxTexPriority = lerp(sLastMaxTexPriority, sCurMaxTexPriority, gFrameIntervalSeconds);
sLastMaxTexPriority = (F32) gCamera->getScreenPixelArea();
sCurMaxTexPriority = 0.f;
}
LLMemType mt(LLMemType::MTYPE_SPACE_PARTITION);
LLGLDisable cullface(GL_CULL_FACE);
LLGLEnable blend(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
LLGLDisable tex(GL_TEXTURE_2D);
gPipeline.disableLights();
LLOctreeRenderNonOccluded render_debug;
render_debug.traverse(mOctree);
LLGLDisable cull_face(GL_CULL_FACE);
if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_OCCLUSION) && !mOccludedList.empty() &&
mOcclusionIndices.notNull())
{
LLGLDisable fog(GL_FOG);
LLGLDepthTest gls_depth(GL_FALSE);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
mOcclusionIndices->setBuffer(0);
U32* indicesp = (U32*) mOcclusionIndices->getIndicesPointer();
LLGLEnable blend(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
LLGLEnable cull(GL_CULL_FACE);
glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);
for (U32 i = 0; i < mOccludedList.size(); i++)
{ //draw occluded nodes
LLSpatialGroup* node = mOccludedList[i];
if (node->isDead() ||
!node->isState(LLSpatialGroup::OCCLUDED) ||
node->mOcclusionVerts.isNull())
{
continue;
}
node->mOcclusionVerts->setBuffer(LLVertexBuffer::MAP_VERTEX);
{
LLGLDepthTest depth_under(GL_TRUE, GL_FALSE, GL_GREATER);
glColor4f(0.5, 0.5f, 0, 0.25f);
glDrawRangeElements(GL_TRIANGLES, 0, 7, 36,
GL_UNSIGNED_INT, indicesp);
}
{
LLGLDepthTest depth_over(GL_TRUE, GL_FALSE, GL_LEQUAL);
glColor4f(0.0,1.0f,1.0f,1.0f);
glDrawRangeElements(GL_TRIANGLES, 0, 7, 36,
GL_UNSIGNED_INT, indicesp);
}
}
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
}
}
BOOL LLSpatialPartition::isVisible(const LLVector3& v)
{
if (!gCamera->sphereInFrustum(v, 4.0f))
{
return FALSE;
}
return TRUE;
}
class LLOctreePick : public LLSpatialGroup::OctreeTraveler
{
public:
LLVector3 mStart;
LLVector3 mEnd;
LLDrawable* mRet;
LLOctreePick(LLVector3 start, LLVector3 end)
: mStart(start), mEnd(end)
{
mRet = NULL;
}
virtual LLDrawable* check(const LLSpatialGroup::OctreeNode* node)
{
const LLSpatialGroup::OctreeState* state = node->getOctState();
state->accept(this);
for (U32 i = 0; i < node->getChildCount(); i++)
{
const LLSpatialGroup::OctreeNode* child = node->getChild(i);
LLVector3 res;
LLSpatialGroup* group = (LLSpatialGroup*) child->getListener(0);
LLVector3 size;
LLVector3 center;
size = group->mBounds[1];
center = group->mBounds[0];
if (LLLineSegmentAABB(mStart, mEnd, center, size))
{
check(child);
}
}
return mRet;
}
virtual void visit(const LLSpatialGroup::OctreeState* branch)
{
for (LLSpatialGroup::OctreeState::const_element_iter i = branch->getData().begin(); i != branch->getData().end(); ++i)
{
check(*i);
}
}
virtual bool check(LLDrawable* drawable)
{
LLViewerObject* vobj = drawable->getVObj();
if (vobj->lineSegmentIntersect(mStart, mEnd))
{
mRet = vobj->mDrawable;
}
return false;
}
};
LLDrawable* LLSpatialPartition::pickDrawable(const LLVector3& start, const LLVector3& end, LLVector3& collision)
{
LLOctreePick pick(start, end);
LLDrawable* ret = pick.check(mOctree);
collision.setVec(pick.mEnd);
return ret;
}
LLDrawInfo::LLDrawInfo(U32 start, U32 end, U32 count, U32 offset,
LLViewerImage* texture, LLVertexBuffer* buffer,
BOOL fullbright, U8 bump, BOOL particle, F32 part_size)
:
mVertexBuffer(buffer),
mTexture(texture),
mTextureMatrix(NULL),
mStart(start),
mEnd(end),
mCount(count),
mOffset(offset),
mFullbright(fullbright),
mBump(bump),
mParticle(particle),
mPartSize(part_size),
mVSize(0.f)
{
}
LLVertexBuffer* LLGeometryManager::createVertexBuffer(U32 type_mask, U32 usage)
{
return new LLVertexBuffer(type_mask, usage);
}
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