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initial reverse-z depth implementation

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This commit is contained in:
glassmancody.info 2021-06-01 12:15:25 -07:00
parent 10d100f205
commit 70fac33940
46 changed files with 614 additions and 92 deletions
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18
components/terrain/material.cpp
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@ -7,7 +7,9 @@
#include <osg/TexMat>
#include <osg/BlendFunc>
#include <components/resource/scenemanager.hpp>
#include <components/shader/shadermanager.hpp>
#include <components/sceneutil/util.hpp>
#include <mutex>
@ -95,19 +97,18 @@ namespace
class LequalDepth
{
public:
static const osg::ref_ptr<osg::Depth>& value()
static const osg::ref_ptr<osg::Depth>& value(bool reverseZ)
{
static LequalDepth instance;
static LequalDepth instance(reverseZ);
return instance.mValue;
}
private:
osg::ref_ptr<osg::Depth> mValue;
LequalDepth()
: mValue(new osg::Depth)
LequalDepth(bool reverseZ)
: mValue(SceneUtil::createDepth(reverseZ))
{
mValue->setFunction(osg::Depth::LEQUAL);
}
};
@ -170,9 +171,10 @@ namespace
namespace Terrain
{
std::vector<osg::ref_ptr<osg::StateSet> > createPasses(bool useShaders, Shader::ShaderManager* shaderManager, const std::vector<TextureLayer> &layers,
std::vector<osg::ref_ptr<osg::StateSet> > createPasses(bool useShaders, Resource::SceneManager* sceneManager, const std::vector<TextureLayer> &layers,
const std::vector<osg::ref_ptr<osg::Texture2D> > &blendmaps, int blendmapScale, float layerTileSize)
{
Shader::ShaderManager* shaderManager = &sceneManager->getShaderManager();
std::vector<osg::ref_ptr<osg::StateSet> > passes;
unsigned int blendmapIndex = 0;
@ -195,7 +197,7 @@ namespace Terrain
else
{
stateset->setAttributeAndModes(BlendFuncFirst::value(), osg::StateAttribute::ON);
stateset->setAttributeAndModes(LequalDepth::value(), osg::StateAttribute::ON);
stateset->setAttributeAndModes(LequalDepth::value(sceneManager->getReverseZ()), osg::StateAttribute::ON);
}
}
@ -238,7 +240,7 @@ namespace Terrain
if (!vertexShader || !fragmentShader)
{
// Try again without shader. Error already logged by above
return createPasses(false, shaderManager, layers, blendmaps, blendmapScale, layerTileSize);
return createPasses(false, sceneManager, layers, blendmaps, blendmapScale, layerTileSize);
}
stateset->setAttributeAndModes(shaderManager->getProgram(vertexShader, fragmentShader));