Mirrors/overte
3
0
Fork 0
mirror of https://github.com/overte-org/overte.git synced 2025-04-25 20:36:38 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions

Basic rendering working again.

Browse source
This commit is contained in:
Andrzej Kapolka 2014-07-25 18:19:50 -07:00
parent 57ca606491
commit 4f5448f529
2 changed files with 145 additions and 325 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

442
interface/src/MetavoxelSystem.cpp
View file

@ -31,20 +31,9 @@ REGISTER_META_OBJECT(StaticModelRenderer)
static int bufferPointVectorMetaTypeId = qRegisterMetaType<BufferPointVector>();
ProgramObject MetavoxelSystem::_program;
int MetavoxelSystem::_pointScaleLocation;
void MetavoxelSystem::init() {
MetavoxelClientManager::init();
if (!_program.isLinked()) {
_program.addShaderFromSourceFile(QGLShader::Vertex, Application::resourcesPath() + "shaders/metavoxel_point.vert");
_program.link();
_program.bind();
_pointScaleLocation = _program.uniformLocation("pointScale");
_program.release();
}
PointMetavoxelRendererImplementation::init();
_pointBufferAttribute = AttributeRegistry::getInstance()->registerAttribute(new PointBufferAttribute());
}
@ -91,35 +80,6 @@ void MetavoxelSystem::simulate(float deltaTime) {
guide(spannerSimulateVisitor);
}
class PointBufferRenderVisitor : public MetavoxelVisitor {
public:
PointBufferRenderVisitor();
virtual int visit(MetavoxelInfo& info);
private:
int _order;
};
PointBufferRenderVisitor::PointBufferRenderVisitor() :
MetavoxelVisitor(QVector<AttributePointer>() << Application::getInstance()->getMetavoxels()->getPointBufferAttribute(),
QVector<AttributePointer>(), Application::getInstance()->getMetavoxels()->getLOD()),
_order(encodeOrder(Application::getInstance()->getViewFrustum()->getDirection())) {
}
int PointBufferRenderVisitor::visit(MetavoxelInfo& info) {
PointBufferPointer buffer = info.inputValues.at(0).getInlineValue<PointBufferPointer>();
if (buffer) {
buffer->render(1000);
}
if (info.isLeaf) {
return STOP_RECURSION;
}
return _order;
}
class SpannerRenderVisitor : public SpannerVisitor {
public:
@ -166,63 +126,10 @@ void MetavoxelSystem::render() {
RenderVisitor renderVisitor(getLOD());
guideToAugmented(renderVisitor);
int viewport[4];
glGetIntegerv(GL_VIEWPORT, viewport);
const int VIEWPORT_WIDTH_INDEX = 2;
const int VIEWPORT_HEIGHT_INDEX = 3;
float viewportWidth = viewport[VIEWPORT_WIDTH_INDEX];
float viewportHeight = viewport[VIEWPORT_HEIGHT_INDEX];
float viewportDiagonal = sqrtf(viewportWidth*viewportWidth + viewportHeight*viewportHeight);
float worldDiagonal = glm::distance(Application::getInstance()->getViewFrustum()->getNearBottomLeft(),
Application::getInstance()->getViewFrustum()->getNearTopRight());
_program.bind();
_program.setUniformValue(_pointScaleLocation, viewportDiagonal *
Application::getInstance()->getViewFrustum()->getNearClip() / worldDiagonal);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
glEnable(GL_VERTEX_PROGRAM_POINT_SIZE_ARB);
glDisable(GL_BLEND);
//PointBufferRenderVisitor pointBufferRenderVisitor;
//guide(pointBufferRenderVisitor);
foreach (const SharedNodePointer& node, NodeList::getInstance()->getNodeHash()) {
if (node->getType() == NodeType::MetavoxelServer) {
QMutexLocker locker(&node->getMutex());
MetavoxelSystemClient* client = static_cast<MetavoxelSystemClient*>(node->getLinkedData());
if (client) {
client->render();
}
}
}
glEnable(GL_BLEND);
glDisable(GL_VERTEX_PROGRAM_POINT_SIZE_ARB);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
_program.release();
SpannerRenderVisitor spannerRenderVisitor;
guide(spannerRenderVisitor);
}
void MetavoxelSystem::setClientPoints(const SharedNodePointer& node, const BufferPointVector& points) {
QMutexLocker locker(&node->getMutex());
MetavoxelSystemClient* client = static_cast<MetavoxelSystemClient*>(node->getLinkedData());
if (client) {
client->setPoints(points);
}
}
MetavoxelClient* MetavoxelSystem::createClient(const SharedNodePointer& node) {
return new MetavoxelSystemClient(node, _updater);
}
@ -240,35 +147,7 @@ void MetavoxelSystem::guideToAugmented(MetavoxelVisitor& visitor) {
}
MetavoxelSystemClient::MetavoxelSystemClient(const SharedNodePointer& node, MetavoxelUpdater* updater) :
MetavoxelClient(node, updater),
_pointCount(0) {
_buffer.setUsagePattern(QOpenGLBuffer::StaticDraw);
_buffer.create();
}
void MetavoxelSystemClient::render() {
_buffer.bind();
BufferPoint* point = 0;
glVertexPointer(4, GL_FLOAT, sizeof(BufferPoint), &point->vertex);
glColorPointer(3, GL_UNSIGNED_BYTE, sizeof(BufferPoint), &point->color);
glNormalPointer(GL_BYTE, sizeof(BufferPoint), &point->normal);
glDrawArrays(GL_POINTS, 0, _pointCount);
_buffer.release();
}
void MetavoxelSystemClient::setPoints(const BufferPointVector& points) {
qint64 now = QDateTime::currentMSecsSinceEpoch();
_buffer.bind();
_buffer.allocate(points.constData(), points.size() * sizeof(BufferPoint));
_buffer.release();
_pointCount = points.size();
qDebug() << "upload" << (QDateTime::currentMSecsSinceEpoch() - now);
qDebug() << _pointCount;
MetavoxelClient(node, updater) {
}
void MetavoxelSystemClient::setAugmentedData(const MetavoxelData& data) {
@ -288,166 +167,6 @@ int MetavoxelSystemClient::parseData(const QByteArray& packet) {
return packet.size();
}
class BufferBuilder : public MetavoxelVisitor {
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() <<
Application::getInstance()->getMetavoxels()->getPointBufferAttribute(), QVector<AttributePointer>() <<
Application::getInstance()->getMetavoxels()->getPointBufferAttribute(), lod) {
}
const int ALPHA_RENDER_THRESHOLD = 0;
const int BUFFER_LEVELS = 5;
const int LAST_BUFFER_LEVEL = BUFFER_LEVELS - 1;
int BufferBuilder::visit(MetavoxelInfo& info) {
if (info.inputValues.at(2).getInlineValue<PointBufferPointer>()) {
info.outputValues[0] = AttributeValue(_outputs.at(0));
}
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 | ((_depth % BUFFER_LEVELS) == LAST_BUFFER_LEVEL ? 0 : ALL_NODES);
}
bool BufferBuilder::postVisit(MetavoxelInfo& info) {
if (_depth % BUFFER_LEVELS != 0) {
return false;
}
QVector<int> offsets;
offsets.append(0);
int leafCount = 0;
int totalPoints = 0;
int lastDepth = qMin(_depth + BUFFER_LEVELS, _depthPoints.size());
for (int i = _depth; i < lastDepth; i++) {
const BufferPointVectorPair& pair = _depthPoints.at(i);
offsets.append(totalPoints += ((leafCount += pair.first.size()) + pair.second.size()));
}
QOpenGLBuffer buffer;
buffer.setUsagePattern(QOpenGLBuffer::StaticDraw);
buffer.create();
buffer.bind();
buffer.allocate(totalPoints * sizeof(BufferPoint));
int offset = 0;
for (int i = _depth; i < lastDepth; i++) {
// write the internal nodes from the current level
BufferPointVector& internal = _depthPoints[i].second;
int length = internal.size() * sizeof(BufferPoint);
buffer.write(offset, internal.constData(), length);
offset += length;
internal.clear();
// and the leaves from the top down
for (int j = _depth; j <= i; j++) {
const BufferPointVector& leaves = _depthPoints.at(j).first;
length = leaves.size() * sizeof(BufferPoint);
buffer.write(offset, leaves.constData(), length);
offset += length;
}
}
// clear the leaves now that we're done with them
for (int i = _depth; i < lastDepth; i++) {
_depthPoints[i].first.clear();
}
buffer.release();
info.outputValues[0] = AttributeValue(_outputs.at(0), encodeInline(PointBufferPointer(
new PointBuffer(buffer, offsets, leafCount))));
return true;
}
class PointCollector : public MetavoxelVisitor {
public:
QVector<BufferPoint> points;
PointCollector(const MetavoxelLOD& lod);
virtual int visit(MetavoxelInfo& info);
};
PointCollector::PointCollector(const MetavoxelLOD& lod) :
MetavoxelVisitor(QVector<AttributePointer>() << AttributeRegistry::getInstance()->getColorAttribute() <<
AttributeRegistry::getInstance()->getNormalAttribute(), QVector<AttributePointer>(), lod) {
}
int PointCollector::visit(MetavoxelInfo& info) {
if (!info.isLeaf) {
return DEFAULT_ORDER;
}
QRgb color = info.inputValues.at(0).getInlineValue<QRgb>();
quint8 alpha = qAlpha(color);
if (alpha <= ALPHA_RENDER_THRESHOLD) {
return STOP_RECURSION;
}
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)) } };
points.append(point);
return STOP_RECURSION;
}
/// Builds a point buffer.
class PointBufferBuilder : public QRunnable {
public:
PointBufferBuilder(const SharedNodePointer& node, const MetavoxelData& data, const MetavoxelLOD& lod);
virtual void run();
private:
QWeakPointer<Node> _node;
MetavoxelData _data;
MetavoxelLOD _lod;
};
PointBufferBuilder::PointBufferBuilder(const SharedNodePointer& node, const MetavoxelData& data, const MetavoxelLOD& lod) :
_node(node),
_data(data),
_lod(lod) {
}
void PointBufferBuilder::run() {
SharedNodePointer node = _node;
if (!node) {
return;
}
qint64 now = QDateTime::currentMSecsSinceEpoch();
PointCollector collector(_lod);
_data.guide(collector);
QMetaObject::invokeMethod(Application::getInstance()->getMetavoxels(), "setClientPoints",
Q_ARG(const SharedNodePointer&, node), Q_ARG(const BufferPointVector&, collector.points));
qDebug() << "collect" << (QDateTime::currentMSecsSinceEpoch() - now);
}
class AugmentVisitor : public MetavoxelVisitor {
public:
@ -506,26 +225,12 @@ void Augmenter::run() {
}
AugmentVisitor visitor(_lod, _previousData);
_data.guide(visitor);
QMetaObject::invokeMethod(node.data(), "setAugmentedData", Q_ARG(const MetavoxelData&, _data));
QMutexLocker locker(&node->getMutex());
QMetaObject::invokeMethod(node->getLinkedData(), "setAugmentedData", Q_ARG(const MetavoxelData&, _data));
}
void MetavoxelSystemClient::dataChanged(const MetavoxelData& oldData) {
MetavoxelClient::dataChanged(oldData);
/* BufferBuilder builder(_remoteDataLOD);
const AttributePointer& pointBufferAttribute = Application::getInstance()->getMetavoxels()->getPointBufferAttribute();
MetavoxelNode* oldRoot = oldData.getRoot(pointBufferAttribute);
if (oldRoot && oldData.getSize() == _data.getSize()) {
oldRoot->incrementReferenceCount();
_data.setRoot(pointBufferAttribute, oldRoot);
_data.guideToDifferent(oldData, builder);
} else {
_data.clear(pointBufferAttribute);
_data.guide(builder);
} */
QThreadPool::globalInstance()->start(new PointBufferBuilder(_node, _data, _remoteDataLOD));
QThreadPool::globalInstance()->start(new Augmenter(_node, _data, getAugmentedData(), _remoteDataLOD));
}
@ -534,13 +239,42 @@ void MetavoxelSystemClient::sendDatagram(const QByteArray& data) {
Application::getInstance()->getBandwidthMeter()->outputStream(BandwidthMeter::METAVOXELS).updateValue(data.size());
}
PointBuffer::PointBuffer(const QOpenGLBuffer& buffer, const QVector<int>& offsets, int lastLeafCount) :
_buffer(buffer),
_offsets(offsets),
_lastLeafCount(lastLeafCount) {
PointBuffer::PointBuffer(const QVector<BufferPointVectorPair>& levelPoints) :
_levelPoints(levelPoints) {
}
void PointBuffer::render(int level) {
// initalize buffer, etc. on first render
if (!_buffer.isCreated()) {
_offsets.append(0);
_lastLeafCount = 0;
int totalPoints = 0;
foreach (const BufferPointVectorPair& pair, _levelPoints) {
_offsets.append(totalPoints += ((_lastLeafCount += pair.first.size()) + pair.second.size()));
}
_buffer.setUsagePattern(QOpenGLBuffer::StaticDraw);
_buffer.create();
_buffer.bind();
_buffer.allocate(totalPoints * sizeof(BufferPoint));
int offset = 0;
for (int i = 0; i < _levelPoints.size(); i++) {
// write the internal nodes from the current level
const BufferPointVector& internal = _levelPoints.at(i).second;
int length = internal.size() * sizeof(BufferPoint);
_buffer.write(offset, internal.constData(), length);
offset += length;
// and the leaves from the top down
for (int j = 0; j <= i; j++) {
const BufferPointVector& leaves = _levelPoints.at(j).first;
length = leaves.size() * sizeof(BufferPoint);
_buffer.write(offset, leaves.constData(), length);
offset += length;
}
}
_levelPoints.clear();
_buffer.release();
}
int first, count;
int nextLevel = level + 1;
if (nextLevel >= _offsets.size()) {
@ -587,6 +321,17 @@ AttributeValue PointBufferAttribute::inherit(const AttributeValue& parentValue)
return AttributeValue(parentValue.getAttribute());
}
void PointMetavoxelRendererImplementation::init() {
if (!_program.isLinked()) {
_program.addShaderFromSourceFile(QGLShader::Vertex, Application::resourcesPath() + "shaders/metavoxel_point.vert");
_program.link();
_program.bind();
_pointScaleLocation = _program.uniformLocation("pointScale");
_program.release();
}
}
PointMetavoxelRendererImplementation::PointMetavoxelRendererImplementation() {
}
@ -596,6 +341,11 @@ public:
PointAugmentVisitor(const MetavoxelLOD& lod);
virtual int visit(MetavoxelInfo& info);
virtual bool postVisit(MetavoxelInfo& info);
private:
QVector<BufferPointVectorPair> _depthPoints;
};
PointAugmentVisitor::PointAugmentVisitor(const MetavoxelLOD& lod) :
@ -604,11 +354,44 @@ PointAugmentVisitor::PointAugmentVisitor(const MetavoxelLOD& lod) :
Application::getInstance()->getMetavoxels()->getPointBufferAttribute(), lod) {
}
const int ALPHA_RENDER_THRESHOLD = 0;
int PointAugmentVisitor::visit(MetavoxelInfo& info) {
if (!info.isLeaf) {
return DEFAULT_ORDER;
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 | ALL_NODES);
}
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 | ALL_NODES;
}
bool PointAugmentVisitor::postVisit(MetavoxelInfo& info) {
if (_depth != 0) {
return false;
}
int lastDepth = _depthPoints.size();
QVector<BufferPointVectorPair> levelPoints(lastDepth - _depth);
for (int i = 0; i < levelPoints.size(); i++) {
BufferPointVectorPair& levelPair = levelPoints[i];
BufferPointVectorPair& depthPair = _depthPoints[_depth + i];
levelPair.first.swap(depthPair.first);
levelPair.second.swap(depthPair.second);
}
info.outputValues[0] = AttributeValue(_outputs.at(0), encodeInline(PointBufferPointer(
new PointBuffer(levelPoints))));
return true;
}
void PointMetavoxelRendererImplementation::augment(MetavoxelData& data, const MetavoxelData& previous,
@ -623,25 +406,66 @@ public:
PointRenderVisitor(const MetavoxelLOD& lod);
virtual int visit(MetavoxelInfo& info);
private:
int _order;
};
PointRenderVisitor::PointRenderVisitor(const MetavoxelLOD& lod) :
MetavoxelVisitor(QVector<AttributePointer>() << Application::getInstance()->getMetavoxels()->getPointBufferAttribute(),
QVector<AttributePointer>(), lod) {
QVector<AttributePointer>(), lod),
_order(encodeOrder(Application::getInstance()->getViewFrustum()->getDirection())) {
}
int PointRenderVisitor::visit(MetavoxelInfo& info) {
if (!info.isLeaf) {
return DEFAULT_ORDER;
PointBufferPointer buffer = info.inputValues.at(0).getInlineValue<PointBufferPointer>();
if (buffer) {
buffer->render(1000);
}
return STOP_RECURSION;
return info.isLeaf ? STOP_RECURSION : _order;
}
void PointMetavoxelRendererImplementation::render(MetavoxelData& data, MetavoxelInfo& info, const MetavoxelLOD& lod) {
int viewport[4];
glGetIntegerv(GL_VIEWPORT, viewport);
const int VIEWPORT_WIDTH_INDEX = 2;
const int VIEWPORT_HEIGHT_INDEX = 3;
float viewportWidth = viewport[VIEWPORT_WIDTH_INDEX];
float viewportHeight = viewport[VIEWPORT_HEIGHT_INDEX];
float viewportDiagonal = sqrtf(viewportWidth * viewportWidth + viewportHeight * viewportHeight);
float worldDiagonal = glm::distance(Application::getInstance()->getViewFrustum()->getNearBottomLeft(),
Application::getInstance()->getViewFrustum()->getNearTopRight());
_program.bind();
_program.setUniformValue(_pointScaleLocation, viewportDiagonal *
Application::getInstance()->getViewFrustum()->getNearClip() / worldDiagonal);
glEnableClientState(GL_VERTEX_ARRAY);
glEnableClientState(GL_COLOR_ARRAY);
glEnableClientState(GL_NORMAL_ARRAY);
glEnable(GL_VERTEX_PROGRAM_POINT_SIZE_ARB);
glDisable(GL_BLEND);
PointRenderVisitor visitor(lod);
data.guide(visitor, &info);
glEnable(GL_BLEND);
glDisable(GL_VERTEX_PROGRAM_POINT_SIZE_ARB);
glDisableClientState(GL_VERTEX_ARRAY);
glDisableClientState(GL_COLOR_ARRAY);
glDisableClientState(GL_NORMAL_ARRAY);
_program.release();
}
ProgramObject PointMetavoxelRendererImplementation::_program;
int PointMetavoxelRendererImplementation::_pointScaleLocation;
static void enableClipPlane(GLenum plane, float x, float y, float z, float w) {
GLdouble coefficients[] = { x, y, z, w };
glClipPlane(plane, coefficients);

26
interface/src/MetavoxelSystem.h
View file

@ -35,17 +35,15 @@ class MetavoxelSystem : public MetavoxelClientManager {
public:
const AttributePointer& getPointBufferAttribute() const { return _pointBufferAttribute; }
virtual void init();
virtual MetavoxelLOD getLOD();
const AttributePointer& getPointBufferAttribute() { return _pointBufferAttribute; }
void simulate(float deltaTime);
void render();
Q_INVOKABLE void setClientPoints(const SharedNodePointer& node, const BufferPointVector& points);
protected:
virtual MetavoxelClient* createClient(const SharedNodePointer& node);
@ -54,9 +52,6 @@ private:
void guideToAugmented(MetavoxelVisitor& visitor);
static ProgramObject _program;
static int _pointScaleLocation;
AttributePointer _pointBufferAttribute;
MetavoxelLOD _lod;
@ -81,10 +76,6 @@ public:
MetavoxelSystemClient(const SharedNodePointer& node, MetavoxelUpdater* updater);
void render();
void setPoints(const BufferPointVector& points);
Q_INVOKABLE void setAugmentedData(const MetavoxelData& data);
/// Returns a copy of the augmented data. This function is thread-safe.
@ -99,9 +90,6 @@ protected:
private:
QOpenGLBuffer _buffer;
int _pointCount;
MetavoxelData _augmentedData;
QReadWriteLock _augmentedDataLock;
};
@ -110,12 +98,13 @@ private:
class PointBuffer : public QSharedData {
public:
PointBuffer(const QOpenGLBuffer& buffer, const QVector<int>& offsets, int lastLeafCount);
PointBuffer(const QVector<BufferPointVectorPair>& levelPoints);
void render(int level);
private:
QVector<BufferPointVectorPair> _levelPoints;
QOpenGLBuffer _buffer;
QVector<int> _offsets;
int _lastLeafCount;
@ -142,10 +131,17 @@ class PointMetavoxelRendererImplementation : public MetavoxelRendererImplementat
public:
static void init();
Q_INVOKABLE PointMetavoxelRendererImplementation();
virtual void augment(MetavoxelData& data, const MetavoxelData& previous, MetavoxelInfo& info, const MetavoxelLOD& lod);
virtual void render(MetavoxelData& data, MetavoxelInfo& info, const MetavoxelLOD& lod);
private:
static ProgramObject _program;
static int _pointScaleLocation;
};
/// Base class for spanner renderers; provides clipping.