State::stateResult_t OccludeeRenderer::doEnableState(FrameContext & context, Node * rootNode, const RenderParam & rp) {
if (rp.getFlag(SKIP_RENDERER)) {
return State::STATE_SKIPPED;
}
static PolygonModeState polygonMode;
polygonMode.changeParameters().setMode(Rendering::PolygonModeParameters::LINE);
occlusionCullingRenderer->setMode(OccRenderer::MODE_CULLING);
const State::stateResult_t resultCulling = occlusionCullingRenderer->enableState(context, rootNode, rp);
if(resultCulling != State::STATE_SKIP_RENDERING) {
WARN("Using the OccRenderer for culling failed.");
return resultCulling;
}
// Clear the depth buffer to be able to render the occluded geometry in front of the previously rendered geometry.
context.getRenderingContext().clearDepth(1.0f);
// Activate wireframe mode.
polygonMode.enableState(context, rootNode, rp);
occlusionCullingRenderer->setMode(OccRenderer::MODE_SHOW_CULLED);
RenderParam rpWorldMatrix = rp;
rpWorldMatrix.setFlag(USE_WORLD_MATRIX);
const State::stateResult_t resultShowCulled = occlusionCullingRenderer->enableState(context, rootNode, rpWorldMatrix);
if(resultShowCulled != State::STATE_SKIP_RENDERING) {
WARN("Using the OccRenderer for showing the culled geometry failed.");
return resultShowCulled;
}
// Deactivate wireframe mode.
polygonMode.disableState(context, rootNode, rp);
return State::STATE_SKIP_RENDERING;
}
void FakeInstanceNode::doDisplay(FrameContext & frameContext, const RenderParam & rp) {
if(fakePrototype.isNull()) {
Node::doDisplay(frameContext, rp);
return;
}
auto camera = static_cast<AbstractCameraNode*>(frameContext.getCamera()->clone());
const Geometry::Matrix4x4f & cameraMatrix = frameContext.getCamera()->getWorldTransformationMatrix();
camera->setRelTransformation( fakePrototype->getWorldTransformationMatrix()
* getWorldToLocalMatrix()
* cameraMatrix);
frameContext.pushAndSetCamera(camera);
frameContext.displayNode(fakePrototype.get(), rp);
frameContext.popCamera();
}
void OccRenderer::updateNodeInformation(FrameContext & context,Node * rootNode)const{
/***
** Vis ---|> NodeVisitor
***/
struct Vis:public NodeVisitor {
const OccRenderer & r;
AbstractCameraNode * camera;
const Node * rootNode;
int insideFrustum;
Geometry::Vec3 camPos;
Vis(const OccRenderer & _r, const Node * _rootNode, AbstractCameraNode * _camera) :
r(_r), camera(_camera), rootNode(_rootNode), insideFrustum(0), camPos(_camera->getWorldOrigin()) {}
virtual ~Vis() {}
// ---|> NodeVisitor
NodeVisitor::status enter(Node * node) override {
NodeInfo * info=r.getNodeInfo(node);
info->setActualSubtreeComplexity(0);
// the current subtree is completely inside the frustum, so we need not to test inside this subtree
if(insideFrustum>0){
info->setActualFrustumStatus(Geometry::Frustum::INSIDE);
insideFrustum++;
}else{
int i=camera->testBoxFrustumIntersection( node->getWorldBB());
info->setActualFrustumStatus(i);
if(i==Geometry::Frustum::OUTSIDE){
return NodeVisitor::BREAK_TRAVERSAL;
}else if(i==Geometry::Frustum::INSIDE){
insideFrustum++;
}
}
if(node->isClosed() && node!=rootNode){
unsigned int c = insideFrustum > 0 ? countTriangles(node) : countTrianglesInFrustum(node, camera->getFrustum());
info->increaseActualSubtreeComplexity( c );
return BREAK_TRAVERSAL;
}
return CONTINUE_TRAVERSAL;
}
// ---|> NodeVisitor
NodeVisitor::status leave(Node * node) override {
if(insideFrustum>0){
insideFrustum--;
}
unsigned int complexity=r.getNodeInfo(node)->getActualSubtreeComplexity();
if(complexity>0 && rootNode!=node && node->hasParent()){
NodeInfo * pinfo=r.getNodeInfo(node->getParent());
pinfo->increaseActualSubtreeComplexity(complexity);
}
return CONTINUE_TRAVERSAL;
}
} visitor(*this,rootNode,context.getCamera());
rootNode->traverse(visitor);
return;
}
//! (internal)
bool ColorCubeGenerator::prepareCamera(FrameContext& context, const Box& _box, Geometry::side_t side) {
Geometry::Box box(_box);
camera->resetRelTransformation();
camera->setRelOrigin(box.getCenter());
switch(side){
case Geometry::SIDE_X_POS:
camera->rotateRel(Geometry::Angle::deg(90.0f), Geometry::Vec3(0, 1, 0));
if(box.getExtentY() == 0 || box.getExtentZ() == 0) return false; // width or height equal zero
if(box.getExtentX() == 0) box.resizeAbs(0.1,0,0); // depth equal zero
box.resizeRel(1.01,1,1);
break;
case Geometry::SIDE_X_NEG:
camera->rotateRel(Geometry::Angle::deg(-90.0f), Geometry::Vec3(0, 1, 0));
if(box.getExtentY() == 0 || box.getExtentZ() == 0) return false; // width or height equal zero
if(box.getExtentX() == 0) box.resizeAbs(0.1,0,0); // depth equal zero
box.resizeRel(1.01,1,1);
break;
case Geometry::SIDE_Y_POS:
camera->rotateRel(Geometry::Angle::deg(-90.0f), Geometry::Vec3(1, 0, 0));
if(box.getExtentX() == 0 || box.getExtentZ() == 0) return false; // width or height equal zero
if(box.getExtentY() == 0) box.resizeAbs(0,0.1,0); // depth equal zero
box.resizeRel(1,1.01,1);
break;
case Geometry::SIDE_Y_NEG:
camera->rotateRel(Geometry::Angle::deg(90.0f), Geometry::Vec3(1, 0, 0));
if(box.getExtentX() == 0 || box.getExtentZ() == 0) return false; // width or height equal zero
if(box.getExtentY() == 0) box.resizeAbs(0,0.1,0); // depth equal zero
box.resizeRel(1,1.01,1);
break;
case Geometry::SIDE_Z_POS:
if(box.getExtentX() == 0 || box.getExtentY() == 0) return false; // width or height equal zero
if(box.getExtentZ() == 0) box.resizeAbs(0,0,0.1); // depth equal zero
box.resizeRel(1,1,1.01);
break;
case Geometry::SIDE_Z_NEG:
camera->rotateRel(Geometry::Angle::deg(180.0f), Geometry::Vec3(0, 1, 0));
if(box.getExtentX() == 0 || box.getExtentY() == 0) return false; // width or height equal zero
if(box.getExtentZ() == 0) box.resizeAbs(0,0,0.1); // depth equal zero
box.resizeRel(1,1,1.01);
break;
default:
throw std::logic_error("the roof is on fire");
}
//box.resizeRel(1.01);
Geometry::Frustum f = Geometry::calcEnclosingOrthoFrustum(box, camera->getWorldTransformationMatrix().inverse());
camera->setClippingPlanes(f.getLeft(), f.getRight(), f.getBottom(), f.getTop());
camera->setNearFar(f.getNear() , f.getFar());
camera->setViewport(Geometry::Rect_i(maxTexSize*static_cast<uint8_t>(side), 0, maxTexSize, maxTexSize), true);
context.setCamera(camera.get());
return true;
}
State::stateResult_t OccRenderer::showCulled(FrameContext & context,Node * rootNode, const RenderParam & rp){
std::deque<Node *> nodes;
nodes.push_back(rootNode);
while(!nodes.empty()){
Node * node=nodes.front();
nodes.pop_front();
NodeInfo * nInfo=getNodeInfo(node);
if(!conditionalFrustumTest(context.getCamera()->getFrustum(), node->getWorldBB(), rp))
continue;
else if(node->isClosed() ){
if(nInfo->getVisibleFrameNumber()!=frameNumber)
context.displayNode(node,rp);
}else {
const auto children = getChildNodes(node);
nodes.insert(nodes.end(), children.begin(), children.end());
}
}
return State::STATE_SKIP_RENDERING;
}
//! ---|> [State]
State::stateResult_t ShaderUniformState::doEnableState(FrameContext & context, Node *, const RenderParam & /*rp*/) {
priorValueStack.push( std::vector<Rendering::Uniform>() );
Rendering::Shader * shader = context.getRenderingContext().getActiveShader();
if(shader!=nullptr){
// assure that possible changes in the renderingContext are applied to the sg-uniforms before querying the uniforms
context.getRenderingContext().applyChanges();
for(const auto & uniformEntry : uMap) {
const Rendering::Uniform & uniform(uniformEntry.second);
const Rendering::Uniform & priorUniform(shader->getUniform(uniform.getNameId()));
if(priorUniform.isNull())
continue;
priorValueStack.top().push_back(priorUniform);
shader->setUniform(context.getRenderingContext(),uniform,true); // warn if unused--> should not happen
}
}
return State::STATE_OK;
}
State::stateResult_t SurfelRenderer::doEnableState(FrameContext & context, Node * node, const RenderParam & rp) {
State::stateResult_t result = NodeRendererState::doEnableState(context,node,rp);
if( result == State::STATE_OK ){
CameraNode* camera = dynamic_cast<CameraNode*>( context.getCamera() );
if(camera){ // else: an orthographic camera is used; just re-use the previous values.
cameraOrigin = camera->getWorldOrigin();
projectionScale = camera->getWidth() / (std::tan((camera->getRightAngle()-camera->getLeftAngle()).rad()*0.5f)*2.0f);
}
}
return result;
}
bool VisibilitySubdivisionRenderer::renderCellSubset(FrameContext & context, cell_ptr cell, uint32_t budgetBegin, uint32_t budgetEnd) {
try {
const auto & vv = getVV(cell);
std::vector<std::pair<float, object_ptr>> displayObjects;
const uint32_t maxIndex = vv.getIndexCount();
for(uint_fast32_t index = 0; index < maxIndex; ++index) {
if(vv.getBenefits(index) == 0) {
continue;
}
const VisibilityVector::costs_t costs = vv.getCosts(index);
const VisibilityVector::benefits_t benefits = vv.getBenefits(index);
const float score = static_cast<float>(costs) / static_cast<float>(benefits);
displayObjects.emplace_back(score, vv.getNode(index));
}
const Geometry::Frustum & frustum = context.getCamera()->getFrustum();
uint32_t renderedTriangles = 0;
std::sort(displayObjects.begin(), displayObjects.end());
for(const auto & objectRatioPair : displayObjects) {
object_ptr o = objectRatioPair.second;
Geometry::Frustum::intersection_t result = frustum.isBoxInFrustum(o->getWorldBB());
if (result == Geometry::Frustum::intersection_t::INSIDE || result == Geometry::Frustum::intersection_t::INTERSECT) {
if(renderedTriangles >= budgetBegin) {
context.displayNode(o, 0);
}
renderedTriangles += o->getTriangleCount();
}
if (budgetEnd != 0 && renderedTriangles >= budgetEnd) {
break;
}
}
} catch(...) {
// Invalid information. => Fall back to standard rendering.
return false;
}
return true;
}
//! Distribute the budget based on the projected size of the child nodes.
static void distributeProjectedSize(double value, const Util::StringIdentifier & attributeId, Node * node, FrameContext & context) {
const auto children = getChildNodes(node);
// A pair stores a node and its projected size.
std::vector<std::pair<Node *, float>> nodeProjSizePairs;
nodeProjSizePairs.reserve(children.size());
double projSizeSum = 0.0;
const Geometry::Rect_f screenRect(context.getRenderingContext().getWindowClientArea());
for(const auto & child : children) {
// Clip the projected rect to the screen.
auto projRect = context.getProjectedRect(child);
projRect.clipBy(screenRect);
const auto projSize = projRect.getArea();
projSizeSum += projSize;
nodeProjSizePairs.emplace_back(child, projSize);
}
for(const auto & nodeProjSizePair : nodeProjSizePairs) {
const double factor = nodeProjSizePair.second / projSizeSum;
setOrUpdateAttribute(nodeProjSizePair.first, attributeId, factor * value);
}
}
void VisibilitySubdivisionRenderer::debugDisplay(uint32_t & renderedTriangles, object_ptr object, FrameContext & context, const RenderParam & rp) {
const Util::Color4f specular(0.1f, 0.1f, 0.1f, 1.0f);
const float ratio = static_cast<float> (renderedTriangles) / static_cast<float> (maxRuntime);
// Gradient from light blue to red.
Util::Color4f color(ratio, 0.5f - 0.5f * ratio, 1.0f - ratio, 1.0f);
Rendering::MaterialParameters material;
material.setAmbient(color);
material.setDiffuse(color);
material.setSpecular(specular);
material.setShininess(64.0f);
context.getRenderingContext().pushAndSetMaterial(material);
context.displayNode(object, rp);
context.getRenderingContext().popMaterial();
renderedTriangles += object->getTriangleCount();
}
//! ---|> [State]
State::stateResult_t ShaderState::doEnableState(FrameContext & context, Node *, const RenderParam & /*rp*/) {
if( !shader )
return State::STATE_SKIPPED;
auto & rCtxt = context.getRenderingContext();
// push current shader to stack
rCtxt.pushAndSetShader(shader.get());
if( !rCtxt.isShaderEnabled(shader.get()) ){
rCtxt.popShader();
deactivate();
WARN("Enabling ShaderState failed. State has been deactivated!");
return State::STATE_SKIPPED;
}
for(const auto & uniformEntry : uMap)
shader->setUniform(rCtxt, uniformEntry.second);
return State::STATE_OK;
}
/**
* (internal)
*/
void OccRenderer::processNode(FrameContext & context,Node * node,NodeInfo * nodeInfo,NodeDistancePriorityQueue_F2B & distanceQueue,const RenderParam & rp){
if (!node->isActive())
return;
nodeInfo->setProcessedFrameNumber(frameNumber);
if(node->isClosed()){
context.displayNode(node, rp );
}else{
const auto children = getChildNodes(node);
for(auto & child : children){
NodeInfo * i=getNodeInfo(child);
if( rp.getFlag(FRUSTUM_CULLING) && i->getActualFrustumStatus()==Geometry::Frustum::OUTSIDE) //context.getCamera()->testBoxFrustumIntersection( (*it)->getWorldBB()) == Frustum::OUTSIDE )
continue;
if( i->getActualSubtreeComplexity() == 0){
continue;
}
distanceQueue.push(child);
}
}
}
void ParticlePointRenderer::operator()(ParticleSystemNode* psys, FrameContext & context, const RenderParam & rp /* = 0 */) {
if ( (rp.getFlag(NO_GEOMETRY)) )
return;
// render particles
std::vector<Particle> & particles = psys->getParticles();
uint32_t count = psys->getParticleCount();
Rendering::VertexDescription vertexDesc;
const Rendering::VertexAttribute & posAttrib = vertexDesc.appendPosition3D();
const Rendering::VertexAttribute & colorAttrib = vertexDesc.appendColorRGBAByte();
// The usage of a cache for the mesh has been tested. Reusing a preallocated mesh is not faster.
Util::Reference<Rendering::Mesh> mesh = new Rendering::Mesh(vertexDesc, count, count);
mesh->setDataStrategy(Rendering::SimpleMeshDataStrategy::getPureLocalStrategy());
mesh->setDrawMode(Rendering::Mesh::DRAW_POINTS);
// mesh->setUseIndexData(false);
Rendering::MeshIndexData & indexData = mesh->openIndexData();
Rendering::MeshVertexData & vertexData = mesh->openVertexData();
Util::Reference<Rendering::PositionAttributeAccessor> positionAccessor = Rendering::PositionAttributeAccessor::create(vertexData, posAttrib.getNameId());
Util::Reference<Rendering::ColorAttributeAccessor> colorAccessor = Rendering::ColorAttributeAccessor::create(vertexData, colorAttrib.getNameId());
uint32_t * indices = indexData.data();
for(uint_fast32_t index = 0; index < count; ++index) {
const Particle & p = particles[index];
colorAccessor->setColor(index, p.color);
positionAccessor->setPosition(index, p.position);
*indices++ = index;
}
indexData.markAsChanged();
indexData.updateIndexRange();
vertexData.markAsChanged();
vertexData.updateBoundingBox();
context.displayMesh(mesh.get());
}
//! ---|> [State]
State::stateResult_t EnvironmentState::doEnableState(FrameContext & context, Node * /*node*/, const RenderParam & rp) {
if (rp.getFlag(NO_GEOMETRY))
return State::STATE_SKIPPED;
if (!environment.isNull()) {
// extract rotation of the camera
Geometry::SRT camRotationSrt = context.getRenderingContext().getMatrix_worldToCamera()._toSRT();
camRotationSrt.setTranslation(Geometry::Vec3(0,0,0));
camRotationSrt.setScale(1.0);
// render the environment node as seen standing at the origin (0,0,0) but looking in the camera's direction.
context.getRenderingContext().pushMatrix_modelToCamera();
context.getRenderingContext().setMatrix_modelToCamera(Geometry::Matrix4x4(camRotationSrt));
context.getRenderingContext().multMatrix_modelToCamera(Geometry::Matrix4x4f(Geometry::SRT(Geometry::Vec3f(0,0,0), context.getWorldFrontVector(), context.getWorldUpVector())));
context.displayNode(environment.get(), rp);
context.getRenderingContext().popMatrix_modelToCamera();
}
return State::STATE_OK;
}
//! Distribute the budget based on the projected size and the primitive count of the child nodes in an iterative manner for correct distribution.
static void distributeProjectedSizeAndPrimitiveCountIterative(double value, const Util::StringIdentifier & attributeId, Node * node, FrameContext & context) {
static const Util::StringIdentifier primitiveCountId("PrimitiveCount");
struct PrimitiveCountAnnotationVisitor : public NodeVisitor {
const Util::StringIdentifier & m_primitiveCountId;
PrimitiveCountAnnotationVisitor(const Util::StringIdentifier & p_primitiveCountId) : m_primitiveCountId(p_primitiveCountId) {
}
virtual ~PrimitiveCountAnnotationVisitor() {
}
NodeVisitor::status leave(Node * _node) override {
auto geoNode = dynamic_cast<GeometryNode *>(_node);
uint32_t primitiveCount = 0;
if(geoNode != nullptr) {
const auto mesh = geoNode->getMesh();
primitiveCount = mesh == nullptr ? 0 : mesh->getPrimitiveCount();
} else {
const auto children = getChildNodes(_node);
for(const auto & child : children) {
primitiveCount += child->getAttribute(m_primitiveCountId)->toUnsignedInt();
}
}
_node->setAttribute(m_primitiveCountId, Util::GenericAttribute::createNumber(primitiveCount));
return CONTINUE_TRAVERSAL;
}
};
const auto children = getChildNodes(node);
// A pair stores the primitive count, the node and its projected size.
std::deque<std::tuple<uint32_t, Node *, float>> primitiveCountNodeProjSizeTuples;
double projSizeSum = 0.0;
const Geometry::Rect_f screenRect(context.getRenderingContext().getWindowClientArea());
for(const auto & child : children) {
if(!child->isAttributeSet(primitiveCountId)) {
PrimitiveCountAnnotationVisitor visitor(primitiveCountId);
child->traverse(visitor);
}
const auto primitiveCount = child->getAttribute(primitiveCountId)->toUnsignedInt();
// Clip the projected rect to the screen.
auto projRect = context.getProjectedRect(child);
projRect.clipBy(screenRect);
const auto projSize = projRect.getArea();
projSizeSum += projSize;
primitiveCountNodeProjSizeTuples.emplace_back(primitiveCount, child, projSize);
}
// Begin with the node with the lowest primitive count
std::sort(primitiveCountNodeProjSizeTuples.begin(), primitiveCountNodeProjSizeTuples.end());
/* Distribute budget until one node gets all budget it asked for.
* This means the previous distributions would receive more budget,
* thus remove that node from distribution (update value and projSizeSum)
* and start again.
*/
std::deque<std::tuple<uint32_t, Node *, float>> tmpDeque(primitiveCountNodeProjSizeTuples); // TODO: fails to copy values correctly!!!
bool nodeRemoved;
double tmpValue;
double tmpProjSizeSum;
double remainingProjSizeSum = projSizeSum;
do{
nodeRemoved = false;
tmpValue = value;
tmpProjSizeSum = remainingProjSizeSum;
for(auto it=tmpDeque.begin(); it!=tmpDeque.end(); ++it) {
std::tuple<uint32_t, Node *, float> element = *it;
const auto primitiveCount = std::get<0>(element);
const auto projSize = std::get<2>(element);
const auto projSizeFactor = projSize / tmpProjSizeSum;
const auto primitiveAssignment = std::min(static_cast<uint32_t>(projSizeFactor * tmpValue), primitiveCount);
setOrUpdateAttribute(std::get<1>(element), attributeId, primitiveAssignment);
if(primitiveAssignment == primitiveCount){
nodeRemoved = true;
tmpDeque.erase(it);
value -= primitiveCount;
remainingProjSizeSum -= projSize;
break;
}
tmpValue -= primitiveAssignment;
tmpProjSizeSum -= projSize;
}
}while(nodeRemoved);
// distribute remaining part of value based on projected size only
if(tmpValue >= 1){
for(const auto & primitiveCountNodeProjSizeTuple : primitiveCountNodeProjSizeTuples) {
const auto projSize = std::get<2>(primitiveCountNodeProjSizeTuple);
const auto projSizeFactor = projSize / projSizeSum;
const auto attribute = dynamic_cast<Util::_NumberAttribute<double> *>(std::get<1>(primitiveCountNodeProjSizeTuple)->getAttribute(attributeId));
attribute->set(attribute->get() + projSizeFactor * tmpValue);
}
}
}
//! ---|> Evaluator
void OccOverheadEvaluator::measure(FrameContext & context,Node & node,const Geometry::Rect & /*r*/) {
//float currentRenderingTime=0;
//int numTests=0;
//int numVBO=0;
int numPoly=0;
Util::Color4f clearColor(0.5f, 0.5f, 0.9f, 1.0f);
{ // 1. normal render pass
// rc.clearScreen(0.5,0.5,0.9);
// context.getRenderingContext().finish();
// node.display(rc,renderingFlags);
context.getRenderingContext().clearScreen(clearColor);
node.display(context,renderingFlags|USE_WORLD_MATRIX);
context.getRenderingContext().clearScreen(clearColor);
context.getRenderingContext().finish();
context.getStatistics().beginFrame();
node.display(context,renderingFlags|USE_WORLD_MATRIX);
context.getRenderingContext().finish();
context.getStatistics().endFrame();
numPoly=static_cast<int>(context.getStatistics().getValueAsDouble(context.getStatistics().getTrianglesCounter()));
}
// 2. test all group nodes if their bb is visible and collect them
std::deque<GroupNode *> visibleGroupNodes;
{
// collect geometry nodes in frustum
const auto groupNodesInVFList = collectNodesInFrustum<GroupNode>(&node,context.getCamera()->getFrustum());
// setup occlusion queries
int numQueries=groupNodesInVFList.size();
if (numQueries==0) {
values->push_back(nullptr); // TODO!!!
return; // TODO??
}
auto queries = new Rendering::OcclusionQuery[numQueries];
// test bounding boxes
context.getRenderingContext().pushAndSetDepthBuffer(Rendering::DepthBufferParameters(true, true, Rendering::Comparison::LEQUAL));
int i=0;
// start queries
Rendering::OcclusionQuery::enableTestMode(context.getRenderingContext());
for(const auto & groupNode : groupNodesInVFList) {
queries[i].begin();
// queries[i].fastBoxTest((*it)->getWorldBB());
Rendering::drawAbsBox(context.getRenderingContext(), groupNode->getWorldBB() );
queries[i].end();
++i;
}
Rendering::OcclusionQuery::disableTestMode(context.getRenderingContext());
i=0;
// get results
for(const auto & groupNode : groupNodesInVFList) {
Geometry::Box extendedBox=groupNode->getWorldBB();
extendedBox.resizeAbs(context.getCamera()->getNearPlane());
if (queries[i].getResult() > 0 || extendedBox.contains(context.getCamera()->getWorldOrigin()) ) {
visibleGroupNodes.push_back(groupNode);
}
++i;
}
context.getRenderingContext().popDepthBuffer();
delete [] queries;
}
std::deque<GeometryNode *> geoNodesInVisibleGroupNodes;
// 3. collect all direct geometry-node children
{
struct GeoChildrenCollector:public NodeVisitor {
GeoChildrenCollector(std::deque<GeometryNode*> & _geoNodes,FrameContext & _context):
geoNodes(_geoNodes),firstNode(true),frameContext(_context) {}
virtual ~GeoChildrenCollector() {}
std::deque<GeometryNode*> & geoNodes;
bool firstNode;
FrameContext & frameContext;
// ---|> NodeVisitor
NodeVisitor::status enter(Node * _node) override {
// if this is the first call, continue...
if(firstNode) {
firstNode=false;
return CONTINUE_TRAVERSAL;
}
// else collect the geometry children and break the traversal.
GeometryNode * gn=dynamic_cast<GeometryNode *>(_node);
if(gn){
if(frameContext.getCamera()->testBoxFrustumIntersection( _node->getWorldBB()) != Geometry::Frustum::intersection_t::OUTSIDE)
geoNodes.push_back(gn);
}
return BREAK_TRAVERSAL;
}
};
for (auto & visibleGroupNode : visibleGroupNodes) {
GeoChildrenCollector vis(geoNodesInVisibleGroupNodes,context);
(visibleGroupNode)->traverse(vis);
}
}
// 4. clear screen and measure time drawing children
float perfectRenderingTime=0;
{
context.getRenderingContext().clearScreen(clearColor);
context.getRenderingContext().finish();
Util::Timer timer;
timer.reset();
for (auto & geoNodesInVisibleGroupNode : geoNodesInVisibleGroupNodes) {
context.displayNode((geoNodesInVisibleGroupNode),renderingFlags|USE_WORLD_MATRIX);
}
context.getRenderingContext().finish();
timer.stop();
perfectRenderingTime=timer.getMilliseconds();
}
// // Test-costs:
// float result=numTests!=0?(currentRenderingTime-perfectRenderingTime)/numTests:0;
// currentRenderingTime-perfRendering:
// float result=currentRenderingTime-perfectRenderingTime;
float result=numPoly>0?perfectRenderingTime*1000/numPoly:0;
// std::cout <<currentRenderingTime<<"-"<<perfectRenderingTime<<"="<<result<<"\t"<<numTests<<"\n";
// std::cout <<numVBO<<":"<<geoNodesInVisibleGroupNodes.size()<<"\n";
// float result=perfectRenderingTime;
// values.push_back(currentRenderingTime);
// values.push_back(perfectRenderingTime);
values->push_back(new Util::_NumberAttribute<float>(result));
// if(mode==SINGLE_VALUE){
// if(result>renderingTime || renderingTime==0)
// renderingTime=result;
// }else{
// values.push_back(result);
// }
// renderingTime=0;
}
void ParticleBillboardRenderer::operator()(ParticleSystemNode * psys, FrameContext & context, const RenderParam & rp) {
if(rp.getFlag(NO_GEOMETRY)) {
return;
}
const auto & worldToCamera = context.getRenderingContext().getMatrix_worldToCamera();
const auto cameraToWorld = worldToCamera.inverse();
const auto halfRight = cameraToWorld.transformDirection(context.getWorldRightVector() * 0.5f);
const auto halfUp = cameraToWorld.transformDirection(context.getWorldUpVector() * 0.5f);
// 2. just update position for each particle and render
// render particles
const uint32_t count = psys->getParticleCount();
Rendering::VertexDescription vertexDesc;
const Rendering::VertexAttribute & posAttrib = vertexDesc.appendPosition3D();
const Rendering::VertexAttribute & colorAttrib = vertexDesc.appendColorRGBAByte();
const Rendering::VertexAttribute & texCoordAttrib = vertexDesc.appendTexCoord();
// The usage of a cache for the mesh has been tested. Reusing a preallocated mesh is not faster.
Util::Reference<Rendering::Mesh> mesh = new Rendering::Mesh(vertexDesc, 4 * count, 6 * count);
mesh->setDataStrategy(Rendering::SimpleMeshDataStrategy::getPureLocalStrategy());
Rendering::MeshIndexData & indexData = mesh->openIndexData();
Rendering::MeshVertexData & vertexData = mesh->openVertexData();
Util::Reference<Rendering::PositionAttributeAccessor> positionAccessor = Rendering::PositionAttributeAccessor::create(vertexData, posAttrib.getNameId());
Util::Reference<Rendering::ColorAttributeAccessor> colorAccessor = Rendering::ColorAttributeAccessor::create(vertexData, colorAttrib.getNameId());
Util::Reference<Rendering::TexCoordAttributeAccessor> texCoordAccessor = Rendering::TexCoordAttributeAccessor::create(vertexData, texCoordAttrib.getNameId());
uint32_t * indices = indexData.data();
uint_fast32_t index = 0;
for(const auto & p : psys->getParticles()) {
const Geometry::Vec3f upOffset = halfUp * p.size.getHeight();
const Geometry::Vec3f rightOffset = halfRight * p.size.getWidth();
colorAccessor->setColor(index + 0, p.color);
texCoordAccessor->setCoordinate(index + 0, Geometry::Vec2f(0.0f, 0.0f));
positionAccessor->setPosition(index + 0, p.position + upOffset - rightOffset);
colorAccessor->setColor(index + 1, p.color);
texCoordAccessor->setCoordinate(index + 1, Geometry::Vec2f(0.0f, 1.0f));
positionAccessor->setPosition(index + 1, p.position - upOffset - rightOffset);
colorAccessor->setColor(index + 2, p.color);
texCoordAccessor->setCoordinate(index + 2, Geometry::Vec2f(1.0f, 1.0f));
positionAccessor->setPosition(index + 2, p.position - upOffset + rightOffset);
colorAccessor->setColor(index + 3, p.color);
texCoordAccessor->setCoordinate(index + 3, Geometry::Vec2f(1.0f, 0.0f));
positionAccessor->setPosition(index + 3, p.position + upOffset + rightOffset);
*indices++ = index + 0;
*indices++ = index + 1;
*indices++ = index + 3;
*indices++ = index + 1;
*indices++ = index + 2;
*indices++ = index + 3;
index += 4;
}
indexData.markAsChanged();
indexData.updateIndexRange();
vertexData.markAsChanged();
vertexData.updateBoundingBox();
context.displayMesh(mesh.get());
}
void VSThreadPool::runTasks(VSThreadPool *owner, std::atomic<bool> &stop) {
#ifdef VS_TARGET_CPU_X86
if (!vs_isMMXStateOk())
vsFatal("Bad MMX state detected after creating new thread");
#endif
#ifdef VS_TARGET_OS_WINDOWS
if (!vs_isFPUStateOk())
vsWarning("Bad FPU state detected after creating new thread");
if (!vs_isSSEStateOk())
vsFatal("Bad SSE state detected after creating new thread");
#endif
std::unique_lock<std::mutex> lock(owner->lock);
while (true) {
bool ranTask = false;
/////////////////////////////////////////////////////////////////////////////////////////////
// Go through all tasks from the top (oldest) and process the first one possible
for (std::list<PFrameContext>::iterator iter = owner->tasks.begin(); iter != owner->tasks.end(); ++iter) {
FrameContext *mainContext = iter->get();
FrameContext *leafContext = nullptr;
/////////////////////////////////////////////////////////////////////////////////////////////
// Handle the output tasks
if (mainContext->frameDone && mainContext->returnedFrame) {
PFrameContext mainContextRef(*iter);
owner->tasks.erase(iter);
owner->returnFrame(mainContextRef, mainContext->returnedFrame);
ranTask = true;
break;
}
if (mainContext->frameDone && mainContext->hasError()) {
PFrameContext mainContextRef(*iter);
owner->tasks.erase(iter);
owner->returnFrame(mainContextRef, mainContext->getErrorMessage());
ranTask = true;
break;
}
bool hasLeafContext = mainContext->returnedFrame || mainContext->hasError();
if (hasLeafContext)
{
leafContext = mainContext;
mainContext = mainContext->upstreamContext.get();
}
VSNode *clip = mainContext->clip;
int filterMode = clip->filterMode;
/////////////////////////////////////////////////////////////////////////////////////////////
// This part handles the locking for the different filter modes
bool parallelRequestsNeedsUnlock = false;
if (filterMode == fmUnordered) {
// already busy?
if (!clip->serialMutex.try_lock())
continue;
} else if (filterMode == fmSerial) {
// already busy?
if (!clip->serialMutex.try_lock())
continue;
// no frame in progress?
if (clip->serialFrame == -1) {
clip->serialFrame = mainContext->n;
//
} else if (clip->serialFrame != mainContext->n) {
clip->serialMutex.unlock();
continue;
}
// continue processing the already started frame
} else if (filterMode == fmParallel) {
std::lock_guard<std::mutex> lock(clip->concurrentFramesMutex);
// is the filter already processing another call for this frame? if so move along
if (clip->concurrentFrames.count(mainContext->n)) {
continue;
} else {
clip->concurrentFrames.insert(mainContext->n);
}
} else if (filterMode == fmParallelRequests) {
std::lock_guard<std::mutex> lock(clip->concurrentFramesMutex);
// is the filter already processing another call for this frame? if so move along
if (clip->concurrentFrames.count(mainContext->n)) {
continue;
} else {
// do we need the serial lock since all frames will be ready this time?
// check if we're in the arAllFramesReady state so we need additional locking
if (mainContext->numFrameRequests == 1) {
if (!clip->serialMutex.try_lock())
continue;
parallelRequestsNeedsUnlock = true;
clip->concurrentFrames.insert(mainContext->n);
}
}
}
/////////////////////////////////////////////////////////////////////////////////////////////
// Remove the context from the task list
PFrameContext mainContextRef;
PFrameContext leafContextRef;
if (hasLeafContext) {
leafContextRef = *iter;
mainContextRef = leafContextRef->upstreamContext;
} else {
mainContextRef = *iter;
}
owner->tasks.erase(iter);
/////////////////////////////////////////////////////////////////////////////////////////////
// Figure out the activation reason
VSActivationReason ar = arInitial;
bool skipCall = false; // Used to avoid multiple error calls for the same frame request going into a filter
if ((hasLeafContext && leafContext->hasError()) || mainContext->hasError()) {
ar = arError;
skipCall = mainContext->setError(leafContext->getErrorMessage());
--mainContext->numFrameRequests;
} else if (hasLeafContext && leafContext->returnedFrame) {
if (--mainContext->numFrameRequests > 0)
ar = arFrameReady;
else
ar = arAllFramesReady;
mainContext->availableFrames.insert(std::make_pair(NodeOutputKey(leafContext->clip, leafContext->n, leafContext->index), leafContext->returnedFrame));
mainContext->lastCompletedN = leafContext->n;
mainContext->lastCompletedNode = leafContext->node;
}
assert(mainContext->numFrameRequests >= 0);
bool hasExistingRequests = !!mainContext->numFrameRequests;
/////////////////////////////////////////////////////////////////////////////////////////////
// Do the actual processing
lock.unlock();
VSFrameContext externalFrameCtx(mainContextRef);
assert(ar == arError || !mainContext->hasError());
PVideoFrame f;
if (!skipCall)
f = clip->getFrameInternal(mainContext->n, ar, externalFrameCtx);
ranTask = true;
bool frameProcessingDone = f || mainContext->hasError();
if (mainContext->hasError() && f)
vsFatal("A frame was returned by %s but an error was also set, this is not allowed", clip->name.c_str());
/////////////////////////////////////////////////////////////////////////////////////////////
// Unlock so the next job can run on the context
if (filterMode == fmUnordered) {
clip->serialMutex.unlock();
} else if (filterMode == fmSerial) {
if (frameProcessingDone)
clip->serialFrame = -1;
clip->serialMutex.unlock();
} else if (filterMode == fmParallel) {
std::lock_guard<std::mutex> lock(clip->concurrentFramesMutex);
clip->concurrentFrames.erase(mainContext->n);
} else if (filterMode == fmParallelRequests) {
std::lock_guard<std::mutex> lock(clip->concurrentFramesMutex);
clip->concurrentFrames.erase(mainContext->n);
if (parallelRequestsNeedsUnlock)
clip->serialMutex.unlock();
}
/////////////////////////////////////////////////////////////////////////////////////////////
// Handle frames that were requested
bool requestedFrames = !externalFrameCtx.reqList.empty() && !frameProcessingDone;
lock.lock();
if (requestedFrames) {
for (auto &reqIter : externalFrameCtx.reqList)
owner->startInternal(reqIter);
externalFrameCtx.reqList.clear();
}
if (frameProcessingDone)
owner->allContexts.erase(NodeOutputKey(mainContext->clip, mainContext->n, mainContext->index));
/////////////////////////////////////////////////////////////////////////////////////////////
// Propagate status to other linked contexts
// CHANGES mainContextRef!!!
if (mainContext->hasError() && !hasExistingRequests && !requestedFrames) {
PFrameContext n;
do {
n = mainContextRef->notificationChain;
if (n) {
mainContextRef->notificationChain.reset();
n->setError(mainContextRef->getErrorMessage());
}
if (mainContextRef->upstreamContext) {
owner->startInternal(mainContextRef);
}
if (mainContextRef->frameDone) {
owner->returnFrame(mainContextRef, mainContextRef->getErrorMessage());
}
} while ((mainContextRef = n));
} else if (f) {
if (hasExistingRequests || requestedFrames)
vsFatal("A frame was returned at the end of processing by %s but there are still outstanding requests", clip->name.c_str());
PFrameContext n;
do {
n = mainContextRef->notificationChain;
if (n)
mainContextRef->notificationChain.reset();
if (mainContextRef->upstreamContext) {
mainContextRef->returnedFrame = f;
owner->startInternal(mainContextRef);
}
if (mainContextRef->frameDone)
owner->returnFrame(mainContextRef, f);
} while ((mainContextRef = n));
} else if (hasExistingRequests || requestedFrames) {
// already scheduled, do nothing
} else {
vsFatal("No frame returned at the end of processing by %s", clip->name.c_str());
}
break;
}
if (!ranTask || owner->activeThreadCount() > owner->threadCount()) {
--owner->activeThreads;
if (stop) {
lock.unlock();
break;
}
++owner->idleThreads;
owner->newWork.wait(lock);
--owner->idleThreads;
++owner->activeThreads;
}
}
}
State::stateResult_t TwinPartitionsRenderer::doEnableState(FrameContext & context, Node *, const RenderParam & rp) {
if (rp.getFlag(SKIP_RENDERER)) {
return State::STATE_SKIPPED;
}
if (data == nullptr) {
// Invalid information. => Fall back to standard rendering.
return State::STATE_SKIPPED;
}
const Geometry::Vec3f pos = context.getCamera()->getWorldOrigin();
// Check if cached cell can be used.
if (currentCell == INVALID_CELL || !data->cells[currentCell].bounds.contains(pos)) {
// Search the cell that contains the camera position.
bool cellFound = false;
const uint32_t cellCount = data->cells.size();
for (uint_fast32_t cell = 0; cell < cellCount; ++cell) {
if (data->cells[cell].bounds.contains(pos)) {
// #ifdef MINSG_EXT_OUTOFCORE
// // Set new priorities if the current cell changes.
// if (currentCell != cell) {
// // Low priority for old depth mesh.
// if (currentCell != INVALID_CELL) {
// for(std::vector<uint32_t>::const_iterator it = data->cells[currentCell].surroundingIds.begin(); it != data->cells[currentCell].surroundingIds.end(); ++it) {
// Rendering::Mesh * depthMesh = data->depthMeshes[*it].get();
// OutOfCore::getCacheManager().setUserPriority(depthMesh, 0);
// }
// }
// // High priority for new depth mesh.
// {
// for(std::vector<uint32_t>::const_iterator it = data->cells[cell].surroundingIds.begin(); it != data->cells[cell].surroundingIds.end(); ++it) {
// Rendering::Mesh * depthMesh = data->depthMeshes[*it].get();
// OutOfCore::getCacheManager().setUserPriority(depthMesh, 20);
// }
// }
// // Low priority for meshes visible from the old cell.
// if (currentCell != INVALID_CELL) {
// const uint32_t oldVisibleSetIndex = data->cells[currentCell].visibleSetId;
// const PartitionsData::visible_set_t & oldVisibleSet = data->visibleSets[oldVisibleSetIndex];
// for (PartitionsData::visible_set_t::const_iterator it = oldVisibleSet.begin(); it != oldVisibleSet.end(); ++it) {
// Rendering::Mesh * mesh = data->objects[it->second].get();
// OutOfCore::getCacheManager().setUserPriority(mesh, 0);
// }
// }
// // High priority for meshes visible from the new cell.
// {
// const uint32_t visibleSetIndex = data->cells[cell].visibleSetId;
// const PartitionsData::visible_set_t & visibleSet = data->visibleSets[visibleSetIndex];
// for (PartitionsData::visible_set_t::const_iterator it = visibleSet.begin(); it != visibleSet.end(); ++it) {
// Rendering::Mesh * mesh = data->objects[it->second].get();
// OutOfCore::getCacheManager().setUserPriority(mesh, 10);
// }
// }
// }
// #endif /* MINSG_EXT_OUTOFCORE */
// Load new textures.
textures.clear();
if(drawTexturedDepthMeshes) {
textures.reserve(6);
for(auto & elem : data->cells[cell].surroundingIds) {
const std::string & textureFile = data->textureFiles[elem];
Util::Reference<Rendering::Texture> texture = Rendering::Serialization::loadTexture(Util::FileName(textureFile));
if(texture == nullptr) {
WARN("Failed to load texture for depth mesh.");
} else {
textures.push_back(texture);
}
}
}
currentCell = cell;
cellFound = true;
break;
}
}
if (!cellFound) {
// Camera outside view space.
currentCell = INVALID_CELL;
return State::STATE_SKIPPED;
}
}
uint32_t renderedTriangles = 0;
const uint32_t visibleSetIndex = data->cells[currentCell].visibleSetId;
const PartitionsData::visible_set_t & visibleSet = data->visibleSets[visibleSetIndex];
if(drawTexturedDepthMeshes) {
for(auto & elem : data->cells[currentCell].surroundingIds) {
Rendering::Mesh * depthMesh = data->depthMeshes[elem].get();
// Count the depth meshes here already.
renderedTriangles += depthMesh->getPrimitiveCount();
}
}
const Geometry::Frustum & frustum = context.getCamera()->getFrustum();
/*float minDist = 9999999.0f;
float maxDist = 0.0f;
float prioSum = 0.0f;
uint_fast32_t objectCounter = 0;
for (PartitionsData::visible_set_t::const_iterator it = visibleSet.begin(); it != visibleSet.end(); ++it) {
Rendering::Mesh * mesh = data->objects[it->second].get();
float dist = mesh->getBoundingBox().getDistance(pos);
minDist = std::min(dist, minDist);
maxDist = std::max(dist, maxDist);
if(objectCounter < 10) {
prioSum += it->first;
++objectCounter;
}
}
std::ofstream output("twinOutput.tsv", ios_base::out | ios_base::app);
output << currentCell << '\t' << data->cells[currentCell].bounds.getDiameter() << '\t' << (data->cells[currentCell].bounds.getCenter() - pos).length() << '\t'
<< visibleSet.begin()->first << '\t'
<< visibleSet.rbegin()->first << '\t'
<< minDist << '\t' << maxDist << '\t' << prioSum << '\t';
for(std::vector<uint32_t>::const_iterator it = data->cells[currentCell].surroundingIds.begin(); it != data->cells[currentCell].surroundingIds.end(); ++it) {
Rendering::Mesh * depthMesh = data->depthMeshes[*it].get();
const Geometry::Box & depthMeshBB = depthMesh->getBoundingBox();
const Geometry::Vec3f originalDirection = (depthMeshBB.getCenter() - data->cells[currentCell].bounds.getCenter()).normalize();
const Geometry::Vec3f currentDirection = (depthMeshBB.getCenter() - pos).normalize();
const float angle = currentDirection.dot(originalDirection);
const bool visible = (frustum.isBoxInFrustum(depthMeshBB) != Frustum::OUTSIDE);
output << '\t';
if(visible) {
output << angle ;
} else {
output << "NA";
}
}
for(uint_fast32_t i = data->cells[currentCell].surroundingIds.size(); i < 6; ++i) {
output << "\tNA";
}
output << std::endl;
output.close();*/
for (auto & elem : visibleSet) {
Rendering::Mesh * mesh = data->objects[elem.second].get();
if (conditionalFrustumTest(frustum, mesh->getBoundingBox(), rp)) {
context.displayMesh(mesh);
renderedTriangles += mesh->getPrimitiveCount();
}
if(rp.getFlag(BOUNDING_BOXES)) {
Rendering::drawWireframeBox(context.getRenderingContext(), mesh->getBoundingBox(), Util::ColorLibrary::RED);
}
if (maxRuntime != 0 && renderedTriangles >= maxRuntime) {
break;
}
}
// Draw the textured depth meshes at the end.
if(drawTexturedDepthMeshes) {
context.getRenderingContext().pushAndSetPolygonOffset(Rendering::PolygonOffsetParameters(polygonOffsetFactor, polygonOffsetUnits));
context.getRenderingContext().pushAndSetShader(getTDMShader());
context.getRenderingContext().pushTexture(0);
auto texIt = textures.begin();
for(auto & elem : data->cells[currentCell].surroundingIds) {
Rendering::Mesh * depthMesh = data->depthMeshes[elem].get();
Rendering::Texture * texture = texIt->get();
context.getRenderingContext().setTexture(0, texture);
if (conditionalFrustumTest(frustum, depthMesh->getBoundingBox(), rp)) {
context.displayMesh(depthMesh);
}
++texIt;
}
context.getRenderingContext().popTexture(0);
context.getRenderingContext().popShader();
context.getRenderingContext().popPolygonOffset();
}
return State::STATE_SKIP_RENDERING;
}
void ShaderState::setUniform(FrameContext & context, const Rendering::Uniform & value) {
setUniform(value);
shader->setUniform(context.getRenderingContext(),value,true,true); // warn if uniform is not defined in shader and force at least one try on applying the uniform
}
State::stateResult_t VisibilitySubdivisionRenderer::doEnableState(
FrameContext & context,
Node *,
const RenderParam & rp) {
if (rp.getFlag(SKIP_RENDERER)) {
return State::STATE_SKIPPED;
}
if (viSu == nullptr) {
// Invalid information. => Fall back to standard rendering.
return State::STATE_SKIPPED;
}
// [AccumRendering]
if(accumRenderingEnabled){
// camera moved? -> start new frame
const Geometry::Matrix4x4 & newCamMat=context.getCamera()->getWorldTransformationMatrix();
if(newCamMat!=lastCamMatrix){
lastCamMatrix = newCamMat;
startRuntime=0;
}
}else{
startRuntime=0;
}
// ----
uint32_t renderedTriangles = 0;
if (hold) {
for (const auto & object : holdObjects) {
if (debugOutput) {
debugDisplay(renderedTriangles, object, context, rp);
} else {
context.displayNode(object, rp);
}
}
return State::STATE_SKIP_RENDERING;
}
Geometry::Vec3 pos = context.getCamera()->getWorldOrigin();
bool refreshCache = false;
// Check if cached cell can be used.
if (currentCell == nullptr || !currentCell->getBB().contains(pos)) {
currentCell = viSu->getNodeAtPosition(pos);
refreshCache = true;
}
if (currentCell == nullptr || !currentCell->isLeaf()) {
// Invalid information. => Fall back to standard rendering.
return State::STATE_SKIPPED;
}
if (refreshCache) {
try {
const auto & vv = getVV(currentCell);
const uint32_t maxIndex = vv.getIndexCount();
objects.clear();
objects.reserve(maxIndex);
for(uint_fast32_t index = 0; index < maxIndex; ++index) {
if(vv.getBenefits(index) == 0) {
continue;
}
const VisibilityVector::costs_t costs = vv.getCosts(index);
const VisibilityVector::benefits_t benefits = vv.getBenefits(index);
const float score = static_cast<float>(costs) / static_cast<float>(benefits);
objects.emplace_back(score, vv.getNode(index));
}
} catch(...) {
// Invalid information. => Fall back to standard rendering.
return State::STATE_SKIPPED;
}
if (displayTexturedDepthMeshes) {
#ifdef MINSG_EXT_OUTOFCORE
for (const auto & depthMesh : depthMeshes) {
OutOfCore::getCacheManager().setUserPriority(depthMesh.get(), 0);
}
#endif /* MINSG_EXT_OUTOFCORE */
depthMeshes.clear();
depthMeshes.reserve(6);
textures.clear();
textures.reserve(6);
const std::string dmDirectionStrings[6] = { "-dir_x1_y0_z0", "-dir_x-1_y0_z0",
"-dir_x0_y1_z0", "-dir_x0_y-1_z0",
"-dir_x0_y0_z1", "-dir_x0_y0_z-1" };
for (auto & dmDirectionString : dmDirectionStrings) {
Util::GenericAttribute * attrib = currentCell->getAttribute("DepthMesh" + dmDirectionString);
if (attrib == nullptr) {
continue;
}
Util::FileName dmMeshPath(attrib->toString());
Util::Reference<Rendering::Mesh> dmMesh;
#ifdef MINSG_EXT_OUTOFCORE
Util::GenericAttribute * bbAttrib = currentCell->getAttribute("DepthMesh" + dmDirectionString + "-bounds");
if (bbAttrib == nullptr) {
WARN("Found depth mesh with no bounding box.");
continue;
}
std::vector<float> bbValues = Util::StringUtils::toFloats(bbAttrib->toString());
FAIL_IF(bbValues.size() != 6);
const Geometry::Box meshBB(Geometry::Vec3(bbValues[0], bbValues[1], bbValues[2]), bbValues[3], bbValues[4], bbValues[5]);
dmMesh = OutOfCore::addMesh(dmMeshPath, meshBB);
#else /* MINSG_EXT_OUTOFCORE */
dmMesh = Rendering::Serialization::loadMesh(dmMeshPath);
#endif /* MINSG_EXT_OUTOFCORE */
depthMeshes.emplace_back(dmMesh);
// Count the depth mesh here already.
renderedTriangles += dmMesh->getPrimitiveCount();
Util::GenericAttribute * texAttrib = currentCell->getAttribute("Texture" + dmDirectionString);
if (texAttrib == nullptr) {
continue;
}
Util::FileName texturePath(texAttrib->toString());
Util::Reference<Rendering::Texture> texture = Rendering::Serialization::loadTexture(texturePath);
if (texture.isNull()) {
WARN("Loading texture for depth mesh failed.");
continue;
}
textures.emplace_back(texture);
}
}
}
const Geometry::Frustum & frustum = context.getCamera()->getFrustum();
holdObjects.clear();
holdObjects.reserve(objects.size());
std::sort(objects.begin(), objects.end());
for(const auto & ratioObjectPair : objects) {
object_ptr o = ratioObjectPair.second;
#ifdef MINSG_EXT_OUTOFCORE
OutOfCore::getCacheManager().setUserPriority(o->getMesh(), 5);
#endif /* MINSG_EXT_OUTOFCORE */
if (conditionalFrustumTest(frustum, o->getWorldBB(), rp)) {
// [AccumRendering]
// skip geometry rendered in the last frame
if(renderedTriangles<startRuntime){
renderedTriangles += o->getTriangleCount();
continue;
}
// ----
if (debugOutput) {
debugDisplay(renderedTriangles, o, context, rp);
} else {
context.displayNode(o, rp);
renderedTriangles += o->getTriangleCount();
}
holdObjects.push_back(o);
}
if (maxRuntime != 0 && renderedTriangles >= startRuntime+maxRuntime) {
break;
}
}
// Draw the textured depth meshes at the end.
if (displayTexturedDepthMeshes) {
context.getRenderingContext().pushAndSetPolygonOffset(Rendering::PolygonOffsetParameters(polygonOffsetFactor, polygonOffsetUnits));
auto texIt = textures.cbegin();
for (const auto & depthMesh : depthMeshes) {
context.getRenderingContext().pushAndSetShader(getTDMShader());
context.getRenderingContext().pushAndSetTexture(0,texIt->get());
if (conditionalFrustumTest(frustum, depthMesh->getBoundingBox(), rp)) {
context.displayMesh(depthMesh.get());
}
context.getRenderingContext().popTexture(0);
context.getRenderingContext().popShader();
#ifdef MINSG_EXT_OUTOFCORE
OutOfCore::getCacheManager().setUserPriority(depthMesh.get(), 2);
#endif /* MINSG_EXT_OUTOFCORE */
++texIt;
}
context.getRenderingContext().popPolygonOffset();
}
// [AccumRendering]
startRuntime=renderedTriangles;
// ----
return State::STATE_SKIP_RENDERING;
}
State::stateResult_t PhotonRenderer::doEnableState(FrameContext & context, Node * node, const RenderParam & rp){
#ifdef MINSG_THESISSTANISLAW_GATHER_STATISTICS
Rendering::RenderingContext::finish();
_timer.reset();
#endif // MINSG_THESISSTANISLAW_GATHER_STATISTICS
if(!_photonSampler){
WARN("No PhotonSampler present in PhotonRenderer!");
return State::stateResult_t::STATE_SKIPPED;
}
if(!_approxScene){
WARN("No approximated Scene present in PhotonRenderer!");
return State::stateResult_t::STATE_SKIPPED;
}
auto& rc = context.getRenderingContext();
rc.setImmediateMode(true);
rc.applyChanges();
if(_fboChanged){
if(!initializeFBO(rc)){
WARN("Could not initialize FBO for PhotonRenderer!");
return State::stateResult_t::STATE_SKIPPED;
}
_fboChanged = false;
}
RenderParam newRp;
rc.pushAndSetFBO(_fbo.get());
rc.clearDepth(1.0f);
rc.applyChanges();
for(int32_t i = 0; i < _photonSampler->getPhotonNumber(); i++){
_fbo->setDrawBuffers(2);
rc.pushAndSetShader(_indirectLightShader.get());
_lightPatchRenderer->bindTBO(rc, true, false);
_photonSampler->bindPhotonBuffer(1);
context.pushAndSetCamera(_photonCamera.get());
_indirectLightShader->setUniform(rc, Rendering::Uniform("photonID", i));
rc.clearDepth(1.0f);
rc.clearColor(Util::Color4f(0.f, 0.f, 0.f, 0.f));
_approxScene->display(context, newRp);
context.popCamera();
_photonSampler->unbindPhotonBuffer(1);
_lightPatchRenderer->unbindTBO(rc);
rc.popShader();
// Accumulate all pixel values in one photon
_fbo->setDrawBuffers(0);
rc.pushAndSetShader(_accumulationShader.get());
_accumulationShader->setUniform(rc, Rendering::Uniform("photonID", i));
_accumulationShader->setUniform(rc, Rendering::Uniform("samplingWidth", static_cast<int>(_samplingWidth)));
_accumulationShader->setUniform(rc, Rendering::Uniform("samplingHeight", static_cast<int>(_samplingHeight)));
_photonSampler->bindPhotonBuffer(1);
rc.clearDepth(1.0f);
Rendering::TextureUtils::drawTextureToScreen(rc, Geometry::Rect_i(0, 0, _samplingWidth, _samplingHeight), *_indirectLightTexture.get(), Geometry::Rect_f(0.0f, 0.0f, 1.0f, 1.0f));
_photonSampler->unbindPhotonBuffer(1);
rc.popShader();
}
rc.popFBO();
rc.setImmediateMode(false);
// rc.pushAndSetShader(nullptr);
// Rendering::TextureUtils::drawTextureToScreen(rc, Geometry::Rect_i(0, 0, _samplingWidth, _samplingHeight), *(_indirectLightTexture.get()), Geometry::Rect_f(0.0f, 0.0f, 1.0f, 1.0f));
// rc.popShader();
// return State::stateResult_t::STATE_SKIP_RENDERING;
#ifdef MINSG_THESISSTANISLAW_GATHER_STATISTICS
Rendering::RenderingContext::finish();
_timer.stop();
auto& stats = context.getStatistics();
Statistics::instance(stats).addPhotonRendererTime(stats, _timer.getMilliseconds());
#endif // MINSG_THESISSTANISLAW_GATHER_STATISTICS
return State::stateResult_t::STATE_OK;
}
//! ---|> [State]
State::stateResult_t CHCRenderer::doEnableState(FrameContext & context,Node * rootNode, const RenderParam & rp){
if(rp.getFlag(SKIP_RENDERER))
return State::STATE_SKIPPED;
if(debugShowVisible){
std::deque<Node *> nodes;
{
const auto children = getChildNodes(rootNode);
nodes.insert(nodes.end(), children.begin(), children.end());
}
while(!nodes.empty()){
Node& node = *nodes.front();
nodes.pop_front();
auto& nodeInfo = getNodeInfo(node);
if(nodeInfo.frameNr == frameNr && nodeInfo.visible){
if(node.isClosed())
context.displayNode(&node,rp);
else {
const auto children = getChildNodes(&node);
nodes.insert(nodes.end(), children.begin(), children.end());
}
}
}
}else{
++frameNr;
// used for statistics
unsigned int stat_numTests = 0;
unsigned int stat_numTestsInvisible = 0;
unsigned int stat_numTestsVisible = 0;
Statistics & statistics = context.getStatistics();
RenderParam childParam = rp + USE_WORLD_MATRIX;
const auto& camera = *context.getCamera();
const Geometry::Vec3 camPos = camera.getWorldOrigin();
const float bbEnlargement = camera.getNearPlane();
NodeDistancePriorityQueue_F2B distanceQueue(camPos);
std::queue<std::pair<Rendering::OcclusionQuery, Node*>> queryQueue;
const auto traverseNode = [&](Node& node){
if( node.isClosed() ){ // leaf node
context.displayNode(&node, childParam );
}else{
for(auto & child : getChildNodes(&node))
distanceQueue.push(child);
}
};
const auto pullUpVisibility = [&](Node& node){
for(Node* n=&node; n&&n!=rootNode; n = n->getParent()){
auto& nodeInfo = getNodeInfo(*n);
if(nodeInfo.frameNr == frameNr && nodeInfo.visible)
break;
nodeInfo.visible = true;
nodeInfo.frameNr = frameNr;
};
};
const auto startQuery = [&](Node& node,const Geometry::Box& worldBoundingBox){
Rendering::OcclusionQuery query;
Rendering::OcclusionQuery::enableTestMode(context.getRenderingContext());
query.begin();
Rendering::drawAbsBox(context.getRenderingContext(), worldBoundingBox );
query.end();
Rendering::OcclusionQuery::disableTestMode(context.getRenderingContext());
return std::make_pair(std::move(query),&node);
};
traverseNode(*rootNode);
while(!distanceQueue.empty() || !queryQueue.empty()){
// ---- PART 1: process finished occlusion queries
while( !queryQueue.empty() && (distanceQueue.empty() || queryQueue.front().first.isResultAvailable()) ){
if( queryQueue.front().first.getResult()>0 ){
++stat_numTestsVisible;
statistics.pushEvent( Statistics::EVENT_TYPE_END_TEST_VISIBLE, 1);
Node& node = *queryQueue.front().second;
pullUpVisibility(node);
auto& nodeInfo = getNodeInfo( node );
if( !nodeInfo.wasVisible )
traverseNode(node);
}else{
++stat_numTestsInvisible;
statistics.pushEvent( Statistics::EVENT_TYPE_END_TEST_INVISIBLE, 1);
}
queryQueue.pop();
}
// ---- PART 2: tree traversal
if( !distanceQueue.empty() ){
Node& node = *distanceQueue.top();
distanceQueue.pop();
const Geometry::Box worldBoundingBox = node.getWorldBB();
if (camera.testBoxFrustumIntersection( node.getWorldBB()) == Geometry::Frustum::intersection_t::OUTSIDE) {
continue;
}
Geometry::Box enlargedBox = worldBoundingBox;
enlargedBox.resizeAbs( bbEnlargement );
if( enlargedBox.contains(camPos) ){
pullUpVisibility(node);
traverseNode(node);
continue;
}
auto& nodeInfo = getNodeInfo( node );
// identify previously visible nodes
const bool wasVisible = nodeInfo.frameNr == frameNr-1 && nodeInfo.visible;
nodeInfo.wasVisible = wasVisible;
// reset node's visibility flag
nodeInfo.visible = false;
// update node's visited flag
nodeInfo.frameNr = frameNr;
// test leafs and previously invisible nodes
if( node.isClosed() || !wasVisible){ // on testing front
// start test
++stat_numTests;
statistics.pushEvent(Statistics::EVENT_TYPE_START_TEST, 1);
queryQueue.push( std::move(startQuery(node,worldBoundingBox)) );
}
// traverse a node unless it was invisible
if( wasVisible )
traverseNode( node );
}
}
statistics.addValue(OcclusionCullingStatistics::instance(statistics).getOccTestVisibleCounter(), stat_numTestsVisible);
statistics.addValue(OcclusionCullingStatistics::instance(statistics).getOccTestInvisibleCounter(), stat_numTestsInvisible);
statistics.addValue(OcclusionCullingStatistics::instance(statistics).getOccTestCounter(), stat_numTests);
}
// std::cout << std::endl;
return State::STATE_SKIP_RENDERING;
}
//! ---|> [State]
void ShaderState::doDisableState(FrameContext & context, Node *, const RenderParam & /*rp*/) {
// restore old shader
context.getRenderingContext().popShader();
}
State::stateResult_t SkyboxState::doEnableState(FrameContext & context, Node *, const RenderParam & rp) {
if (rp.getFlag(NO_GEOMETRY)) {
return State::STATE_SKIPPED;
}
Vec3 pos = context.getCamera()->getWorldOrigin();
Geometry::Matrix4x4 matrix;
matrix.translate(pos);
context.getRenderingContext().pushMatrix_modelToCamera();
context.getRenderingContext().multMatrix_modelToCamera(matrix);
context.getRenderingContext().pushTexture(0);
context.getRenderingContext().pushAndSetDepthBuffer(Rendering::DepthBufferParameters(true, false, Rendering::Comparison::LESS));
context.getRenderingContext().pushAndSetLighting(Rendering::LightingParameters(false));
Geometry::Box box(Geometry::Vec3(0.0f, 0.0f, 0.0f), sideLength);
for (uint_fast8_t side = 0; side < 6; ++side) {
if (!textures[side].isNull()) {
context.getRenderingContext().setTexture(0,textures[side].get());
const Geometry::corner_t * corners = Geometry::Helper::getCornerIndices(static_cast<Geometry::side_t> (side));
// Reverse the corner order because we need the inner surface.
Rendering::drawQuad(context.getRenderingContext(), box.getCorner(corners[1]), box.getCorner(corners[0]), box.getCorner(corners[3]), box.getCorner(corners[2]),Util::ColorLibrary::WHITE);
}
}
context.getRenderingContext().popLighting();
context.getRenderingContext().popDepthBuffer();
context.getRenderingContext().popTexture(0);
context.getRenderingContext().popMatrix_modelToCamera();
return State::STATE_OK;
}
//! (internal) Main culling method
State::stateResult_t OccRenderer::performCulling(FrameContext & context,Node * rootNode, const RenderParam & rp){
if(mode==MODE_UNCONDITIONED){ // destroy temporal coherence
frameNumber++;
}
frameNumber++;
updateNodeInformation(context,rootNode); // ???
// used for statistics
unsigned int tests=0;
int testsVisible=0;
int testsInvisible=0;
int occludedGeometryNodes=0;
Statistics & statistics = context.getStatistics();
RenderParam childParam = rp + USE_WORLD_MATRIX;
const Geometry::Vec3 camPos=context.getCamera()->getWorldOrigin();
// NodeDistancePriorityQueue_F2B distanceQueue(camPos);
NodeDistancePriorityQueue_F2B distanceQueue(camPos);
{ // add root node's children
const auto children = getChildNodes(rootNode);
for(auto & child : children) {
distanceQueue.push(child);
}
}
std::queue<std::pair<Rendering::OcclusionQuery, Node *>> queryQueue;
// bool wasIdle=true;
int idleCount=0;
while ( (!distanceQueue.empty()) || (!queryQueue.empty() ) ) {
bool idle=true;
while ( !queryQueue.empty() && queryQueue.front().first.isResultAvailable() ) {
idle=false;
const OcclusionQuery & currentQuery = queryQueue.front().first;
unsigned int result = currentQuery.getResult();
Node * node = queryQueue.front().second;
queryQueue.pop();
NodeInfo * nodeInfo = getNodeInfo(node);
// Node is visible?
if (result>0 ) {
statistics.pushEvent(Statistics::EVENT_TYPE_END_TEST_VISIBLE,nodeInfo->getActualSubtreeComplexity());
testsVisible++;
if (node->isClosed()) {
// mark parents as visible
Node * n=node;
NodeInfo * ni=nodeInfo;
while( ni->getVisibleFrameNumber()!=frameNumber){
ni->setVisibleFrameNumber(frameNumber);
n=n->getParent();
if(n==nullptr || n==rootNode) break;
ni=getNodeInfo(n);
}
}
nodeInfo->setVisibleFrameNumber(frameNumber);
// haben wir schon bearbeitet? -> Weiter...
if (nodeInfo->getProcessedFrameNumber()==frameNumber)
continue;
//// if(node->visibleFrameNumber != (frameNumber-1)){ ????
// Process node
processNode(context,node,nodeInfo,distanceQueue,childParam);
//// }
}// Node is fully occluded?
else {
testsInvisible++;
statistics.pushEvent(Statistics::EVENT_TYPE_END_TEST_INVISIBLE, nodeInfo->getActualSubtreeComplexity());
// not processed yet?
if (nodeInfo->getProcessedFrameNumber()!=frameNumber) {
// TODO: Store and propagate in tree.
occludedGeometryNodes+=collectNodesInFrustum<GeometryNode>(node,context.getCamera()->getFrustum()).size();
// mark the node as processed
nodeInfo->setProcessedFrameNumber(frameNumber);
}
// In diesem Frame verdeckt worden? (dann haben wir nicht mit der Bearbeitung gewartet und
// die Kinder liegen bereits in der distanceQueue; die sollten jetzt �bersprungen werden)
if ( nodeInfo->getVisibleFrameNumber() == (frameNumber-1) ) {
if (!node->isClosed()) {
const auto children = getChildNodes(node);
for(auto & child : children) {
getNodeInfo(child)->setProcessedFrameNumber(frameNumber);
// TODO: Check if ancestors have to be removed too.
}
}
}
}
}
// ...
if ( ! distanceQueue.empty()) {
idle=false;
Node * node=distanceQueue.top();
NodeInfo * nodeInfo=getNodeInfo(node);
distanceQueue.pop();
// If the current node has already been processed, then continue.
if (nodeInfo->getProcessedFrameNumber()==frameNumber ) continue; // ||node->isEmpty()
// // skip empty subtrees // does never happen (checked in processNode)
// if( nodeInfo->getActualSubtreeComplexity() == 0){
// nullBoxes++;
// continue;
// }
// Kamera innerhalb der (um die nearplane vergroesserte) Box? -> immer sichtbar
// [2008-01-04_CJ] Bugfix: added nearplane addition; could result in dissapearing scene-parts.
Geometry::Box extendedBox=node->getWorldBB(); //node->getGeometryBB();
extendedBox.resizeAbs(context.getCamera()->getNearPlane());
if (extendedBox.contains(camPos)) {
nodeInfo->setVisibleFrameNumber(frameNumber);
// Process node
processNode(context,node,nodeInfo,distanceQueue,childParam);
continue;
}
// !IS_INSIDE_FRUSTUM(node)
if ( nodeInfo->getActualFrustumStatus()== Geometry::Frustum::OUTSIDE)
continue;
// [MODE_OPT_CULLING] For optimal culling, skip all unnecessary tests
if(mode==MODE_OPT_CULLING && nodeInfo->getVisibleFrameNumber() == (frameNumber-1)){
nodeInfo->setVisibleFrameNumber(frameNumber);
// Process node
processNode(context,node,nodeInfo,distanceQueue,childParam);
continue;
}
// if query reasonable
// TODO: Something missing here?
{ // start occlusion test for the current node
Rendering::OcclusionQuery query;
Rendering::OcclusionQuery::enableTestMode(context.getRenderingContext());
query.begin();
Rendering::drawFastAbsBox(context.getRenderingContext(), node->getWorldBB());
query.end();
Rendering::OcclusionQuery::disableTestMode(context.getRenderingContext());
tests++;
queryQueue.emplace(std::move(query), node);
statistics.pushEvent(Statistics::EVENT_TYPE_START_TEST, nodeInfo->getActualSubtreeComplexity());
}
// if the current node was visible in the last frame,
// then assume that it is also visible in this frame and process it.
if (nodeInfo->getVisibleFrameNumber() == (frameNumber-1) ) {
// Process node
processNode(context,node,nodeInfo,distanceQueue,childParam);
}
}
// else{
// waiting
// }
if (idle) {
statistics.pushEvent(Statistics::EVENT_TYPE_IDLE, idleCount++);
} else {
idleCount = 0;
}
}
statistics.addValue(OcclusionCullingStatistics::instance(statistics).getOccTestCounter(), tests);
statistics.addValue(OcclusionCullingStatistics::instance(statistics).getOccTestVisibleCounter(), testsVisible);
statistics.addValue(OcclusionCullingStatistics::instance(statistics).getOccTestInvisibleCounter(), testsInvisible);
statistics.addValue(OcclusionCullingStatistics::instance(statistics).getCulledGeometryNodeCounter(), occludedGeometryNodes);
statistics.pushEvent(Statistics::EVENT_TYPE_FRAME_END,0.3);
return State::STATE_SKIP_RENDERING;
}
//! Distribute the budget based on the projected size and the primitive count of the child nodes.
static void distributeProjectedSizeAndPrimitiveCount(double value, const Util::StringIdentifier & attributeId, Node * node, FrameContext & context) {
static const Util::StringIdentifier primitiveCountId("PrimitiveCount");
struct PrimitiveCountAnnotationVisitor : public NodeVisitor {
const Util::StringIdentifier & m_primitiveCountId;
PrimitiveCountAnnotationVisitor(const Util::StringIdentifier & p_primitiveCountId) : m_primitiveCountId(p_primitiveCountId) {
}
virtual ~PrimitiveCountAnnotationVisitor() {
}
NodeVisitor::status leave(Node * _node) override {
auto geoNode = dynamic_cast<GeometryNode *>(_node);
uint32_t primitiveCount = 0;
if(geoNode != nullptr) {
const auto mesh = geoNode->getMesh();
primitiveCount = mesh == nullptr ? 0 : mesh->getPrimitiveCount();
} else {
const auto children = getChildNodes(_node);
for(const auto & child : children) {
primitiveCount += child->getAttribute(m_primitiveCountId)->toUnsignedInt();
}
}
_node->setAttribute(m_primitiveCountId, Util::GenericAttribute::createNumber(primitiveCount));
return CONTINUE_TRAVERSAL;
}
};
const auto children = getChildNodes(node);
// A tuple stores the primitive count, the node and its projected size.
std::vector<std::tuple<uint32_t, Node *, float>> primitiveCountNodeProjSizeTuples;
primitiveCountNodeProjSizeTuples.reserve(children.size());
double projSizeSum = 0.0;
const Geometry::Rect_f screenRect(context.getRenderingContext().getWindowClientArea());
for(const auto & child : children) {
if(!child->isAttributeSet(primitiveCountId)) {
PrimitiveCountAnnotationVisitor visitor(primitiveCountId);
child->traverse(visitor);
}
const auto primitiveCount = child->getAttribute(primitiveCountId)->toUnsignedInt();
// Clip the projected rect to the screen.
auto projRect = context.getProjectedRect(child);
projRect.clipBy(screenRect);
const auto projSize = projRect.getArea();
projSizeSum += projSize;
primitiveCountNodeProjSizeTuples.emplace_back(primitiveCount, child, projSize);
}
// Begin with the node with the lowest primitive count
std::sort(primitiveCountNodeProjSizeTuples.begin(), primitiveCountNodeProjSizeTuples.end());
for(const auto & primitiveCountNodeProjSizeTuple : primitiveCountNodeProjSizeTuples) {
const auto primitiveCount = std::get<0>(primitiveCountNodeProjSizeTuple);
const auto projSize = std::get<2>(primitiveCountNodeProjSizeTuple);
const auto projSizeFactor = projSize / projSizeSum;
const auto primitiveAssignment = std::min(static_cast<uint32_t>(projSizeFactor * value), primitiveCount);
setOrUpdateAttribute(std::get<1>(primitiveCountNodeProjSizeTuple), attributeId, primitiveAssignment);
value -= primitiveAssignment;
projSizeSum -= projSize;
}
}
//! ---|> Evaluator
void VisibilityEvaluator::measure(FrameContext & context,Node & node,const Geometry::Rect & /*r*/) {
// first pass - fill depth buffer.
context.getRenderingContext().clearScreen(Util::Color4f(0.9f, 0.9f, 0.9f, 1.0f));
node.display(context,USE_WORLD_MATRIX|FRUSTUM_CULLING);
if (getMaxValue()->toInt() == 0.0) {
setMaxValue_i(collectNodes<GeometryNode>(&node).size());
}
if (mode==SINGLE_VALUE) {
// collect geometry nodes in frustum
auto objectsInVFList = collectNodesInFrustum<GeometryNode>(&node, context.getCamera()->getFrustum());
for(const auto & geoNode : objectsInVFList) {
objectsInVF[reinterpret_cast<uintptr_t>(geoNode)] = geoNode;
}
// setup occlusion queries
int numQueries=objectsInVFList.size();
if (numQueries==0) return;
auto queries = new Rendering::OcclusionQuery[numQueries];
{ // optional second pass: test bounding boxes
context.getRenderingContext().pushAndSetDepthBuffer(Rendering::DepthBufferParameters(true, true, Rendering::Comparison::LEQUAL));
context.getRenderingContext().pushAndSetPolygonOffset(Rendering::PolygonOffsetParameters(0.0f, -1.0f));
int i=0;
// start queries
Rendering::OcclusionQuery::enableTestMode(context.getRenderingContext());
for(const auto & geoNode : objectsInVFList) {
queries[i].begin();
Rendering::drawAbsBox(context.getRenderingContext(), geoNode->getWorldBB() );
queries[i].end();
++i;
}
Rendering::OcclusionQuery::disableTestMode(context.getRenderingContext());
i=0;
// get results
for(auto & geoNode : objectsInVFList) {
if (queries[i].getResult() == 0 && !geoNode->getWorldBB().contains(context.getCamera()->getWorldOrigin()) ) {
geoNode=nullptr;
}
++i;
}
context.getRenderingContext().popPolygonOffset();
context.getRenderingContext().popDepthBuffer();
}
{ // third pass: test if nodes are exactly visible
context.getRenderingContext().pushAndSetDepthBuffer(Rendering::DepthBufferParameters(true, true, Rendering::Comparison::EQUAL));
int i=0;
// start queries
for(const auto & geoNode : objectsInVFList) {
if (!geoNode)
continue;
queries[i].begin();
// render object i
context.displayNode(geoNode, USE_WORLD_MATRIX);
queries[i].end();
++i;
}
i=0;
// get results
for(const auto & geoNode : objectsInVFList) {
if (!geoNode)
continue;
if (queries[i].getResult() > 0) {
visibleObjects[reinterpret_cast<uintptr_t>(geoNode)] = geoNode;
}
++i;
}
context.getRenderingContext().popDepthBuffer();
}
delete [] queries;
} else {//mode == DIRECTION_VALUES
const auto nodes = collectVisibleNodes(&node, context);
if(doesCountPolygons()){
uint32_t numPolys=0;
for(const auto & n : nodes) {
numPolys += n->getTriangleCount();
}
values->push_back(new Util::_NumberAttribute<float>(numPolys));
}else{
values->push_back(new Util::_NumberAttribute<float>(nodes.size()));
}
}
}
void ColorVisibilityEvaluator::measure(FrameContext & context, Node & node, const Geometry::Rect & rect) {
Rendering::RenderingContext & rCtxt = context.getRenderingContext();
// ### Set up textures for the framebuffer object. ###
const uint32_t width = static_cast<uint32_t> (rect.getWidth());
const uint32_t height = static_cast<uint32_t> (rect.getHeight());
if (colorTexture == nullptr || width != static_cast<uint32_t> (colorTexture->getWidth()) || height != static_cast<uint32_t> (colorTexture->getHeight())) {
// (Re-)Create textures with correct dimension.
rCtxt.pushAndSetFBO(fbo.get());
fbo->detachColorTexture(context.getRenderingContext());
fbo->detachDepthTexture(context.getRenderingContext());
rCtxt.popFBO();
colorTexture = Rendering::TextureUtils::createStdTexture(width, height, true);
depthTexture = Rendering::TextureUtils::createDepthTexture(width, height);
// Bind textures to FBO.
rCtxt.pushAndSetFBO(fbo.get());
fbo->attachColorTexture(context.getRenderingContext(),colorTexture.get());
fbo->attachDepthTexture(context.getRenderingContext(),depthTexture.get());
rCtxt.popFBO();
}
// ### Render the scene into a framebuffer object. ###
rCtxt.pushAndSetFBO(fbo.get());
rCtxt.pushAndSetShader(getShader());
rCtxt.clearScreen(Util::Color4f(0.0f, 0.0f, 0.0f, 0.0f));
// Color counter for assignment of unique colors to triangles.
// Background is black (color 0).
int32_t currentColor = 1;
// Collect potentially visible geometry nodes.
const auto geoNodes = collectNodesInFrustum<GeometryNode>(&node, context.getCamera()->getFrustum());
for(const auto & geoNode : geoNodes) {
getShader()->setUniform(rCtxt, Rendering::Uniform("colorOffset", currentColor));
context.displayNode(geoNode, USE_WORLD_MATRIX | NO_STATES);
currentColor += geoNode->getTriangleCount();
}
rCtxt.popShader();
rCtxt.popFBO();
// ### Read texture and analyze colors. ###
// Map from colors to number of occurrences.
std::map<uint32_t, uint32_t> colorUsage;
// Current color is compared with the previous color. If they match, the local count variable is used as cache before insertion into map is performed.
uint32_t lastColor = 0;
uint32_t lastCount = 0;
colorTexture->downloadGLTexture(rCtxt);
const uint32_t * texData = reinterpret_cast<const uint32_t *> (colorTexture->openLocalData(rCtxt));
const uint32_t numPixels = width * height;
for (uint_fast32_t p = 0; p < numPixels; ++p) {
const uint32_t & color = texData[p];
if (color == 0) {
// Ignore background.
continue;
}
if (color == lastColor) {
++lastCount;
continue;
} else {
// Insert previous color.
if (lastColor != 0) {
increaseColorUsage(lastColor, lastCount, colorUsage);
}
lastColor = color;
lastCount = 1;
}
}
if (lastColor != 0) {
increaseColorUsage(lastColor, lastCount, colorUsage);
}
if (mode == SINGLE_VALUE) {
numTrianglesVisible += colorUsage.size();
} else {
values->push_back(Util::GenericAttribute::createNumber(colorUsage.size()));
}
}
int test_large_scene(Util::UI::Window * window, Util::UI::EventContext & eventContext) {
// texture registry
std::map<std::string, Util::Reference<Rendering::Texture> > textures;
std::cout << "Create FrameContext...\n";
FrameContext fc;
unsigned int renderingFlags = /*BOUNDING_BOXES|SHOW_META_OBJECTS|*/FRUSTUM_CULLING/*|SHOW_COORD_SYSTEM*/;//|SHOW_COORD_SYSTEM;
std::cout << "Create scene graph...\n";
Util::Reference<GroupNode> root = new MinSG::ListNode();
/// Skybox
SkyboxState * sb = SkyboxState::createSkybox("Data/texture/?.bmp");
root->addState(sb);
/// Some shperes...
{
std::default_random_engine engine;
std::uniform_real_distribution<float> coordinateDist(0.0f, 200.0f);
std::vector<Util::Reference<Rendering::Mesh> > spheres;
Util::Reference<Rendering::Mesh> icosahedron = Rendering::MeshUtils::PlatonicSolids::createIcosahedron();
for(int i=0;i<6;++i)
spheres.push_back(Rendering::MeshUtils::PlatonicSolids::createEdgeSubdivisionSphere(icosahedron.get(), i)); // 6... 81920 triangles each
for (int i = 0; i < 1000; i++) {
// create a real clone inclusive internal data!
MinSG::GeometryNode * gn = new GeometryNode(spheres[std::uniform_int_distribution<std::size_t>(0, spheres.size() - 1)(engine)]->clone());
gn->moveRel(Geometry::Vec3(coordinateDist(engine), coordinateDist(engine), coordinateDist(engine)));
root->addChild(gn);
gn->scale(0.1 + std::uniform_real_distribution<float>(0.0f, 1000.0f)(engine) / 400.0);
}
}
/// Camera
Node * schwein = loadModel(Util::FileName("Data/model/Schwein.low.t.ply"), MESH_AUTO_CENTER | MESH_AUTO_SCALE);
ListNode * camera = new ListNode();
CameraNode * camNode = new CameraNode();
camNode->setViewport(Geometry::Rect_i(0, 0, 1024, 768));
camNode->setNearFar(0.1, 2000);
camNode->applyVerticalAngle(80);
camNode->moveRel(Geometry::Vec3(0, 4, 10));
camera->addChild(camNode);
camera->addChild(schwein);
schwein->moveRel(Geometry::Vec3(0, 0, 0));
schwein->rotateLocal_deg(180, Geometry::Vec3(0, 1, 0));
LightNode * myHeadLight = LightNode::createPointLight();
myHeadLight->scale(1);
myHeadLight->moveRel(Geometry::Vec3(0, 0, 0));
camera->addChild(myHeadLight);
LightingState * lightState = new LightingState;
lightState->setLight(myHeadLight);
root->addState(lightState);
root->addChild(camera);
/// Eventhandler
MoveNodeHandler * eh = new MoveNodeHandler();
MoveNodeHandler::initClaudius(eh, camera);
// ---------------------------------------------------------------------------------------------
Rendering::RenderingContext::clearScreen(Util::Color4f(0.5f, 0.5f, 0.5f, 0.5f));
// ----
GET_GL_ERROR();
uint32_t fpsFrameCounter = 0;
Util::Timer fpsTimer;
std::cout << "\nEntering main loop...\n";
// program main loop
bool done = false;
while (!done) {
++fpsFrameCounter;
double seconds = fpsTimer.getSeconds();
if (seconds > 1.0) {
double fps = static_cast<double> (fpsFrameCounter) / seconds;
std::cout << "\r " << fps << " fps ";
std::cout.flush();
fpsTimer.reset();
fpsFrameCounter = 0;
}
// message processing loop
eventContext.getEventQueue().process();
while (eventContext.getEventQueue().getNumEventsAvailable() > 0) {
Util::UI::Event event = eventContext.getEventQueue().popEvent();
// check for messages
switch (event.type) {
// exit if the window is closed
case Util::UI::EVENT_QUIT:
done = true;
break;
// check for keypresses
case Util::UI::EVENT_KEYBOARD: {
if(event.keyboard.pressed && event.keyboard.key == Util::UI::KEY_ESCAPE) {
done = true;
}
break;
}
} // end switch
} // end of message processing
// apply translation
eh->execute();
// clear screen
Rendering::RenderingContext::clearScreen(Util::Color4f(0.0f, 0.0f, 0.0f, 1.0f));
// enable Camera
fc.setCamera(camNode);
// render Scene
root->display(fc, renderingFlags);
window->swapBuffers();
GET_GL_ERROR();
} // end main loop
// destroy scene graph
MinSG::destroy(root.get());
root = nullptr;
// all is well ;)
std::cout << "Exited cleanly\n";
//system("pause");
return EXIT_SUCCESS;
}