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Working on optimized point rendering.

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This commit is contained in:
Andrzej Kapolka 2014-07-18 12:27:51 -07:00
parent 1d6f4295c3
commit cda1a7f32a
2 changed files with 34 additions and 2 deletions
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31
interface/src/MetavoxelSystem.cpp
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@ -216,21 +216,48 @@ public:
BufferBuilder(const MetavoxelLOD& lod);
virtual int visit(MetavoxelInfo& info);
virtual bool postVisit(MetavoxelInfo& info);
private:
QVector<BufferPointVectorPair> _depthPoints;
};
BufferBuilder::BufferBuilder(const MetavoxelLOD& lod) :
MetavoxelVisitor(QVector<AttributePointer>() << AttributeRegistry::getInstance()->getColorAttribute() <<
AttributeRegistry::getInstance()->getNormalAttribute(), QVector<AttributePointer>(), lod) {
AttributeRegistry::getInstance()->getNormalAttribute(), QVector<AttributePointer>() <<
Application::getInstance()->getMetavoxels()->getPointBufferAttribute(), lod) {
}
const int ALPHA_RENDER_THRESHOLD = 0;
int BufferBuilder::visit(MetavoxelInfo& info) {
if (_depth >= _depthPoints.size()) {
_depthPoints.resize(_depth + 1);
}
QRgb color = info.inputValues.at(0).getInlineValue<QRgb>();
quint8 alpha = qAlpha(color);
if (alpha <= ALPHA_RENDER_THRESHOLD) {
return info.isLeaf ? STOP_RECURSION : DEFAULT_ORDER;
}
QRgb normal = info.inputValues.at(1).getInlineValue<QRgb>();
BufferPoint point = { glm::vec4(info.minimum + glm::vec3(info.size, info.size, info.size) * 0.5f, info.size),
{ quint8(qRed(color)), quint8(qGreen(color)), quint8(qBlue(color)) },
{ quint8(qRed(normal)), quint8(qGreen(normal)), quint8(qBlue(normal)) } };
if (info.isLeaf) {
_depthPoints[_depth].first.append(point);
return STOP_RECURSION;
}
_depthPoints[_depth].second.append(point);
return DEFAULT_ORDER;
}
const int BUFFER_LEAF_THRESHOLD = 1024;
bool BufferBuilder::postVisit(MetavoxelInfo& info) {
return false;
}
void MetavoxelSystemClient::dataChanged(const MetavoxelData& oldData) {
BufferBuilder builder(_remoteDataLOD);
_data.guideToDifferent(oldData, builder);

5
interface/src/MetavoxelSystem.h
View file

@ -32,6 +32,8 @@ public:
MetavoxelSystem();
const AttributePointer& getPointBufferAttribute() const { return _pointBufferAttribute; }
virtual void init();
virtual MetavoxelLOD getLOD() const;
@ -107,6 +109,9 @@ public:
quint8 normal[3];
};
typedef QVector<BufferPoint> BufferPointVector;
typedef QPair<BufferPointVector, BufferPointVector> BufferPointVectorPair;
/// Contains the information necessary to render a group of points at variable detail levels.
class PointBuffer {
public: