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Unconditionally disable alpha testing when shaders are used

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This commit is contained in:
AnyOldName3 2020-12-24 00:32:15 +00:00
parent 11b4af49ce
commit 8c3a786e54
1 changed files with 23 additions and 22 deletions
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45
components/shader/shadervisitor.cpp
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@ -374,39 +374,40 @@ namespace Shader
writableStateSet->addUniform(new osg::Uniform("colorMode", reqs.mColorMode));
defineMap["alphaFunc"] = std::to_string(reqs.mAlphaFunc);
// back up removed state in case recreateShaders gets rid of the shader later
osg::ref_ptr<osg::StateSet> removedState;
if ((removedState = getRemovedState(*writableStateSet)) && !mAllowedToModifyStateSets)
removedState = new osg::StateSet(*removedState, osg::CopyOp::SHALLOW_COPY);
if (!removedState)
removedState = new osg::StateSet();
if (reqs.mAlphaFunc != osg::AlphaFunc::ALWAYS)
{
writableStateSet->addUniform(new osg::Uniform("alphaRef", reqs.mAlphaRef));
// back up removed state in case recreateShaders gets rid of the shader later
osg::ref_ptr<osg::StateSet> removedState;
if ((removedState = getRemovedState(*writableStateSet)) && !mAllowedToModifyStateSets)
removedState = new osg::StateSet(*removedState, osg::CopyOp::SHALLOW_COPY);
if (!removedState)
removedState = new osg::StateSet();
if (writableStateSet->getMode(GL_ALPHA_TEST) != osg::StateAttribute::INHERIT)
removedState->setMode(GL_ALPHA_TEST, writableStateSet->getMode(GL_ALPHA_TEST));
// This disables the deprecated fixed-function alpha test
writableStateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::OFF | osg::StateAttribute::PROTECTED);
const auto* alphaFunc = writableStateSet->getAttributePair(osg::StateAttribute::ALPHAFUNC);
if (alphaFunc)
removedState->setAttribute(alphaFunc->first, alphaFunc->second);
// This prevents redundant glAlphaFunc calls while letting the shadows bin still see the test
writableStateSet->setAttribute(RemovedAlphaFunc::getInstance(reqs.mAlphaFunc), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE);
}
if (!removedState->getModeList().empty() || !removedState->getAttributeList().empty())
{
// user data is normally shallow copied so shared with the original stateset
osg::ref_ptr<osg::UserDataContainer> writableUserData;
if (mAllowedToModifyStateSets)
writableUserData = writableStateSet->getOrCreateUserDataContainer();
else
writableUserData = getWritableUserDataContainer(*writableStateSet);
if (writableStateSet->getMode(GL_ALPHA_TEST) != osg::StateAttribute::INHERIT)
removedState->setMode(GL_ALPHA_TEST, writableStateSet->getMode(GL_ALPHA_TEST));
// This disables the deprecated fixed-function alpha test
writableStateSet->setMode(GL_ALPHA_TEST, osg::StateAttribute::OFF | osg::StateAttribute::PROTECTED);
updateRemovedState(*writableUserData, removedState);
}
if (!removedState->getModeList().empty() || !removedState->getAttributeList().empty())
{
// user data is normally shallow copied so shared with the original stateset
osg::ref_ptr<osg::UserDataContainer> writableUserData;
if (mAllowedToModifyStateSets)
writableUserData = writableStateSet->getOrCreateUserDataContainer();
else
writableUserData = getWritableUserDataContainer(*writableStateSet);
updateRemovedState(*writableUserData, removedState);
}
osg::ref_ptr<osg::Shader> vertexShader (mShaderManager.getShader(mDefaultVsTemplate, defineMap, osg::Shader::VERTEX));