void ShaderGenVisitor::update(osg::Drawable *drawable)
{
// update only geometry due to compatibility issues with user defined drawables
osg::Geometry *geometry = drawable->asGeometry();
#if 0
if (!geometry)
return;
#endif
StateEx *state = static_cast<StateEx *>(_state.get());
// skip nodes without state sets
if (state->getStateSetStackSize() == (_rootStateSet.valid() ? 1u : 0u))
return;
// skip state sets with already attached programs
if (state->getAttribute(osg::StateAttribute::PROGRAM))
return;
int stateMask = 0;
//if (state->getMode(GL_BLEND) & osg::StateAttribute::ON)
// stateMask |= ShaderGen::BLEND;
if (state->getMode(GL_LIGHTING) & osg::StateAttribute::ON)
stateMask |= ShaderGenCache::LIGHTING;
if (state->getMode(GL_FOG) & osg::StateAttribute::ON)
stateMask |= ShaderGenCache::FOG;
if (state->getTextureAttribute(0, osg::StateAttribute::TEXTURE))
stateMask |= ShaderGenCache::DIFFUSE_MAP;
if (state->getTextureAttribute(1, osg::StateAttribute::TEXTURE) && geometry!=0 &&
geometry->getVertexAttribArray(6)) //tangent
stateMask |= ShaderGenCache::NORMAL_MAP;
// Get program and uniforms for accumulated state.
osg::StateSet *progss = _stateCache->getOrCreateStateSet(stateMask);
// Set program and uniforms to the last state set.
osg::StateSet *ss = const_cast<osg::StateSet *>(state->getStateSetStack().back());
ss->setAttribute(progss->getAttribute(osg::StateAttribute::PROGRAM));
ss->setUniformList(progss->getUniformList());
// remove any modes that won't be appropriate when using shaders
if ((stateMask&ShaderGenCache::LIGHTING)!=0)
{
ss->removeMode(GL_LIGHTING);
ss->removeMode(GL_LIGHT0);
}
if ((stateMask&ShaderGenCache::FOG)!=0)
{
ss->removeMode(GL_FOG);
}
if ((stateMask&ShaderGenCache::DIFFUSE_MAP)!=0) ss->removeTextureMode(0, GL_TEXTURE_2D);
if ((stateMask&ShaderGenCache::NORMAL_MAP)!=0) ss->removeTextureMode(1, GL_TEXTURE_2D);
}
void GLES2ShaderGenVisitor::update(osg::Drawable *drawable)
{
// update only geometry due to compatibility issues with user defined drawables
osg::Geometry *geometry = drawable->asGeometry();
#if 1
if (!geometry)
return;
#endif
OSG_INFO << "Updating GEOMETRY 1" <<std::endl;
StateEx *state = static_cast<StateEx *>(_state.get());
// skip nodes without state sets
if (state->getStateSetStackSize() == (_rootStateSet.valid() ? 1u : 0u))
return;
OSG_INFO << "Updating GEOMETRY 2" <<std::endl;
// skip state sets with already attached programs
if (state->getAttribute(osg::StateAttribute::PROGRAM))
return;
OSG_INFO << "Updating GEOMETRY 3" <<std::endl;
int stateMask = 0;
//if (state->getMode(GL_BLEND) & osg::StateAttribute::ON)
// stateMask |= ShaderGen::BLEND;
if (state->getMode(GL_LIGHTING) & osg::StateAttribute::ON)
stateMask |= GLES2ShaderGenCache::LIGHTING;
if (state->getMode(GL_FOG) & osg::StateAttribute::ON)
stateMask |= GLES2ShaderGenCache::FOG;
if (state->getTextureAttribute(0, osg::StateAttribute::TEXTURE))
stateMask |= GLES2ShaderGenCache::DIFFUSE_MAP;
if (state->getTextureAttribute(1, osg::StateAttribute::TEXTURE) && geometry!=0 &&
geometry->getVertexAttribArray(6)) //tangent
stateMask |= GLES2ShaderGenCache::NORMAL_MAP;
// Get program and uniforms for accumulated state.
osg::StateSet *progss = _stateCache->getOrCreateStateSet(stateMask);
// Set program and uniforms to the last state set.
osg::StateSet *ss = const_cast<osg::StateSet *>(state->getStateSetStack().back());
ss->setAttribute(progss->getAttribute(osg::StateAttribute::PROGRAM));
ss->setUniformList(progss->getUniformList());
//Edit, for now we will pinch the Material colors and bind as uniforms for non fixed function to replace gl_Front Material
#ifndef OSG_GL_FIXED_FUNCTION_AVAILABLE
OSG_INFO << "Updating GEOMETRY material" <<std::endl;
osg::Material* mat = dynamic_cast<osg::Material*>(ss->getAttribute(osg::StateAttribute::MATERIAL));
if(mat){
ss->addUniform(new osg::Uniform("osg_Material.ambient", mat->getAmbient(osg::Material::FRONT_AND_BACK)));
ss->addUniform(new osg::Uniform("osg_Material.diffuse", mat->getDiffuse(osg::Material::FRONT_AND_BACK)));
ss->addUniform(new osg::Uniform("osg_Material.specular", mat->getSpecular(osg::Material::FRONT_AND_BACK)));
ss->addUniform(new osg::Uniform("osg_Material.shine", mat->getShininess(osg::Material::FRONT_AND_BACK)));
ss->removeAttribute(osg::StateAttribute::MATERIAL);
osg::notify(osg::NOTICE) << "----------- Generated material" << std::endl;
}else{
//if no material then setup some reasonable defaults
ss->addUniform(new osg::Uniform("osg_Material.ambient", osg::Vec4(0.2f,0.2f,0.2f,1.0f)));
ss->addUniform(new osg::Uniform("osg_Material.diffuse", osg::Vec4(0.8f,0.8f,0.8f,1.0f)));
ss->addUniform(new osg::Uniform("osg_Material.specular", osg::Vec4(1.0f,1.0f,1.0f,1.0f)));
ss->addUniform(new osg::Uniform("osg_Material.shine", 16.0f));
}
#endif
// remove any modes that won't be appropriate when using shaders
if ((stateMask & GLES2ShaderGenCache::LIGHTING)!=0)
{
ss->removeMode(GL_LIGHTING);
ss->removeMode(GL_LIGHT0);
}
if ((stateMask & GLES2ShaderGenCache::FOG)!=0)
{
ss->removeMode(GL_FOG);
}
if ((stateMask & GLES2ShaderGenCache::DIFFUSE_MAP)!=0) ss->removeTextureMode(0, GL_TEXTURE_2D);
if ((stateMask & GLES2ShaderGenCache::NORMAL_MAP)!=0) ss->removeTextureMode(1, GL_TEXTURE_2D);
}
