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Set the shader on the node containing the StateSet

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This commit is contained in:
scrawl 2017-08-31 21:39:21 +00:00
parent d749b7f2a7
commit b9931fb71c
2 changed files with 16 additions and 12 deletions
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21
components/shader/shadervisitor.cpp
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@ -26,6 +26,7 @@ namespace Shader
, mMaterialOverridden(false)
, mNormalHeight(false)
, mTexStageRequiringTangents(-1)
, mNode(NULL)
{
}
@ -69,7 +70,7 @@ namespace Shader
{
if (node.getStateSet())
{
pushRequirements();
pushRequirements(node);
applyStateSet(node.getStateSet(), node);
traverse(node);
popRequirements();
@ -234,9 +235,10 @@ namespace Shader
}
}
void ShaderVisitor::pushRequirements()
void ShaderVisitor::pushRequirements(osg::Node& node)
{
mRequirements.push_back(mRequirements.back());
mRequirements.back().mNode = &node;
}
void ShaderVisitor::popRequirements()
@ -244,8 +246,9 @@ namespace Shader
mRequirements.pop_back();
}
void ShaderVisitor::createProgram(const ShaderRequirements &reqs, osg::Node& node)
void ShaderVisitor::createProgram(const ShaderRequirements &reqs)
{
osg::Node& node = *reqs.mNode;
osg::StateSet* writableStateSet = NULL;
if (mAllowedToModifyStateSets)
writableStateSet = node.getOrCreateStateSet();
@ -305,9 +308,9 @@ namespace Shader
void ShaderVisitor::apply(osg::Geometry& geometry)
{
bool needPop = (geometry.getStateSet() != NULL);
if (geometry.getStateSet())
if (geometry.getStateSet()) // TODO: check if stateset affects shader permutation before pushing it
{
pushRequirements();
pushRequirements(geometry);
applyStateSet(geometry.getStateSet(), geometry);
}
@ -350,9 +353,8 @@ namespace Shader
rig->setSourceGeometry(sourceGeometry);
}
// TODO: find a better place for the stateset
if (useShader)
createProgram(reqs, geometry);
createProgram(reqs);
}
if (needPop)
@ -366,16 +368,15 @@ namespace Shader
if (drawable.getStateSet())
{
pushRequirements();
pushRequirements(drawable);
applyStateSet(drawable.getStateSet(), drawable);
}
if (!mRequirements.empty())
{
const ShaderRequirements& reqs = mRequirements.back();
// TODO: find a better place for the stateset
if (reqs.mShaderRequired || mForceShaders)
createProgram(reqs, drawable);
createProgram(reqs);
}
if (needPop)

7
components/shader/shadervisitor.hpp
View file

@ -52,7 +52,7 @@ namespace Shader
void applyStateSet(osg::ref_ptr<osg::StateSet> stateset, osg::Node& node);
void pushRequirements();
void pushRequirements(osg::Node& node);
void popRequirements();
private:
@ -89,13 +89,16 @@ namespace Shader
// -1 == no tangents required
int mTexStageRequiringTangents;
// the Node that requested these requirements
osg::Node* mNode;
};
std::vector<ShaderRequirements> mRequirements;
std::string mDefaultVsTemplate;
std::string mDefaultFsTemplate;
void createProgram(const ShaderRequirements& reqs, osg::Node& node);
void createProgram(const ShaderRequirements& reqs);
};
}