mirror/openmw
1
0
Fork 0
mirror of https://github.com/OpenMW/openmw.git synced 2025-01-30 09:15:38 +00:00
Code Issues Releases Wiki Activity

terrainclusterculling

Browse source
This commit is contained in:
bzzt 2019-08-10 13:37:00 +00:00
parent 2fa4aa9f3f
commit 480302d634
3 changed files with 41 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
components/terrain/chunkmanager.cpp
View file

@ -3,6 +3,7 @@
#include <sstream>
#include <osg/Texture2D>
#include <osg/ClusterCullingCallback>
#include <osgUtil/IncrementalCompileOperation>
@ -198,6 +199,8 @@ osg::ref_ptr<osg::Node> ChunkManager::createChunk(float chunkSize, const osg::Ve
for (unsigned int i=0; i<numUvSets; ++i)
geometry->setTexCoordArray(i, mBufferCache.getUVBuffer(numVerts));
geometry->createClusterCullingCallback();
if (useCompositeMap)
{
osg::ref_ptr<CompositeMap> compositeMap = new CompositeMap;

30
components/terrain/terraindrawable.cpp
View file

@ -1,5 +1,6 @@
#include "terraindrawable.hpp"
#include <osg/ClusterCullingCallback>
#include <osgUtil/CullVisitor>
#include <components/sceneutil/lightmanager.hpp>
@ -36,6 +37,23 @@ inline float distance(const osg::Vec3& coord,const osg::Matrix& matrix)
return -((float)coord[0]*(float)matrix(0,2)+(float)coord[1]*(float)matrix(1,2)+(float)coord[2]*(float)matrix(2,2)+matrix(3,2));
}
//canot use ClusterCullingCallback::cull: viewpoint != eyepoint
// !osgfixpotential!
bool clusterCull(osg::ClusterCullingCallback* cb, const osg::Vec3f& eyePoint, bool shadowcam)
{
float _deviation = cb->getDeviation();
const osg::Vec3& _controlPoint = cb->getControlPoint();
osg::Vec3 _normal = cb->getNormal();
if (shadowcam) _normal = _normal * -1; //inverting for shadowcam frontfaceculing
float _radius = cb->getRadius();
if (_deviation<=-1.0f) return false;
osg::Vec3 eye_cp = eyePoint - _controlPoint;
float radius = eye_cp.length();
if (radius<_radius) return false;
float deviation = (eye_cp * _normal)/radius;
return deviation < _deviation;
}
void TerrainDrawable::cull(osgUtil::CullVisitor *cv)
{
const osg::BoundingBox& bb = getBoundingBox();
@ -43,6 +61,11 @@ void TerrainDrawable::cull(osgUtil::CullVisitor *cv)
if (_cullingActive && cv->isCulled(getBoundingBox()))
return;
bool shadowcam = cv->getCurrentCamera()->getName() == "ShadowCamera";
if (cv->getCullingMode() & osg::CullStack::CLUSTER_CULLING && clusterCull(mClusterCullingCallback, cv->getEyePoint(), shadowcam))
return;
osg::RefMatrix& matrix = *cv->getModelViewMatrix();
if (cv->getComputeNearFarMode() && bb.valid())
@ -55,7 +78,7 @@ void TerrainDrawable::cull(osgUtil::CullVisitor *cv)
if (osg::isNaN(depth))
return;
if (cv->getCurrentCamera()->getName() == "ShadowCamera")
if (shadowcam)
{
cv->addDrawableAndDepth(this, &matrix, depth);
return;
@ -80,6 +103,11 @@ void TerrainDrawable::cull(osgUtil::CullVisitor *cv)
cv->popStateSet();
}
void TerrainDrawable::createClusterCullingCallback()
{
mClusterCullingCallback = new osg::ClusterCullingCallback(this);
}
void TerrainDrawable::setPasses(const TerrainDrawable::PassVector &passes)
{
mPasses = passes;

9
components/terrain/terraindrawable.hpp
View file

@ -3,6 +3,11 @@
#include <osg/Geometry>
namespace osg
{
class ClusterCullingCallback;
}
namespace osgUtil
{
class CullVisitor;
@ -43,6 +48,8 @@ namespace Terrain
void setLightListCallback(SceneUtil::LightListCallback* lightListCallback);
void createClusterCullingCallback();
virtual void compileGLObjects(osg::RenderInfo& renderInfo) const;
void setCompositeMap(CompositeMap* map) { mCompositeMap = map; }
@ -51,6 +58,8 @@ namespace Terrain
private:
PassVector mPasses;
osg::ref_ptr<osg::ClusterCullingCallback> mClusterCullingCallback;
osg::ref_ptr<SceneUtil::LightListCallback> mLightListCallback;
osg::ref_ptr<CompositeMap> mCompositeMap;
osg::ref_ptr<CompositeMapRenderer> mCompositeMapRenderer;