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add LOD support for model and particle rendering

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This commit is contained in:
ZappoMan 2014-05-05 14:26:51 -07:00
parent ccadf3be57
commit b10d9e3903
5 changed files with 24 additions and 5 deletions
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11
interface/src/models/ModelTreeRenderer.cpp
View file

@ -12,7 +12,7 @@
#include <glm/gtx/quaternion.hpp>
#include "InterfaceConfig.h"
#include "Menu.h"
#include "ModelTreeRenderer.h"
ModelTreeRenderer::ModelTreeRenderer() :
@ -118,6 +118,15 @@ void ModelTreeRenderer::renderElement(OctreeElement* element, RenderArgs* args)
}
}
float ModelTreeRenderer::getSizeScale() const {
return Menu::getInstance()->getVoxelSizeScale();
}
int ModelTreeRenderer::getBoundaryLevelAdjust() const {
return Menu::getInstance()->getBoundaryLevelAdjust();
}
void ModelTreeRenderer::processEraseMessage(const QByteArray& dataByteArray, const SharedNodePointer& sourceNode) {
static_cast<ModelTree*>(_tree)->processEraseMessage(dataByteArray, sourceNode);
}

2
interface/src/models/ModelTreeRenderer.h
View file

@ -36,6 +36,8 @@ public:
virtual PacketType getMyQueryMessageType() const { return PacketTypeModelQuery; }
virtual PacketType getExpectedPacketType() const { return PacketTypeModelData; }
virtual void renderElement(OctreeElement* element, RenderArgs* args);
virtual float getSizeScale() const;
virtual int getBoundaryLevelAdjust() const;
void update();

1
libraries/octree/src/OctreeElement.cpp
View file

@ -1208,6 +1208,7 @@ ViewFrustum::location OctreeElement::inFrustum(const ViewFrustum& viewFrustum) c
// By doing this, we don't need to test each child voxel's position vs the LOD boundary
bool OctreeElement::calculateShouldRender(const ViewFrustum* viewFrustum, float voxelScaleSize, int boundaryLevelAdjust) const {
bool shouldRender = false;
if (hasContent()) {
float furthestDistance = furthestDistanceToCamera(*viewFrustum);
float childBoundary = boundaryDistanceForRenderLevel(getLevel() + 1 + boundaryLevelAdjust, voxelScaleSize);

11
libraries/octree/src/OctreeRenderer.cpp
View file

@ -140,19 +140,22 @@ void OctreeRenderer::processDatagram(const QByteArray& dataByteArray, const Shar
bool OctreeRenderer::renderOperation(OctreeElement* element, void* extraData) {
RenderArgs* args = static_cast<RenderArgs*>(extraData);
//if (true || element->isInView(*args->_viewFrustum)) {
if (element->isInView(*args->_viewFrustum)) {
if (element->hasContent()) {
args->_renderer->renderElement(element, args);
if (element->calculateShouldRender(args->_viewFrustum, args->_sizeScale, args->_boundaryLevelAdjust)) {
args->_renderer->renderElement(element, args);
} else {
return false; // if we shouldn't render, then we also should stop recursing.
}
}
return true;
return true; // continue recursing
}
// if not in view stop recursing
return false;
}
void OctreeRenderer::render() {
RenderArgs args = { 0, this, _viewFrustum };
RenderArgs args = { 0, this, _viewFrustum, getSizeScale(), getBoundaryLevelAdjust() };
if (_tree) {
_tree->lockForRead();
_tree->recurseTreeWithOperation(renderOperation, &args);

4
libraries/octree/src/OctreeRenderer.h
View file

@ -31,6 +31,8 @@ public:
int _renderedItems;
OctreeRenderer* _renderer;
ViewFrustum* _viewFrustum;
float _sizeScale;
int _boundaryLevelAdjust;
};
@ -46,6 +48,8 @@ public:
virtual PacketType getMyQueryMessageType() const = 0;
virtual PacketType getExpectedPacketType() const = 0;
virtual void renderElement(OctreeElement* element, RenderArgs* args) = 0;
virtual float getSizeScale() const { return DEFAULT_OCTREE_SIZE_SCALE; }
virtual int getBoundaryLevelAdjust() const { return 0; }
virtual void setTree(Octree* newTree);