I have a geode that loads a shader. It loads up a texture that is meant
to be a default texture. That geode then has many children drawables
under it. The plan is that each child will have a different texture
associated with it, but will otherwise be using the same shader and
StateSet as the parent geode. If the child does not have a texture
associated with it, it should use the one from the parent geode. If I
put the shader in the geode, all geometry is drawn correctly. But if I
try to load a different texture in the child drawable, the geode's
texture is used instead. Please help me figure out what I am missing.
I'm starting to go bleary eyed!
Here is the code that sets up the texture and shader in the geode (and
this works, the texture loaded here shows up):
stateSet = new osg::StateSet
texSampler = new osg::Uniform("texture", 0);
stateSet->addUniform(texSampler);
stateSet->setTextureAttributeAndModes(0, texture,
osg::StateAttribute::ON);
osg::ref_ptr<osg::Program> program = new osg::Program;
osg::ref_ptr<osg::Shader> vertShader = new
osg::Shader(osg::Shader::VERTEX);
vertShader->loadShaderSourceFromFile("shaders/testVert.glsl");
program->addShader(vertShader);
osg::ref_ptr<osg::Shader> fragShader = new
osg::Shader(osg::Shader::FRAGMENT);
fragShader->loadShaderSourceFromFile("shaders/testFrag.glsl");
program->addShader(fragShader);
stateSet->setAttribute(program);
stateSet->setAttributesAndModes(program.get(), osg::StateAttribute::ON);
this->setStateSet(stateSet);
I then attempt to load a different texture in the drawable that is
attached to the above geode. Here is the code I am attempting to use:
stateSet = new osg::StateSet;
stateSet->setTextureAttributeAndModes(0, texture,
osg::StateAttribute::ON | osg::StateAttribute::PROTECTED);
this->setStateSet(stateSet);
I am obviously missing something. I tried switching which texture was on
the geode and the drawable just to make sure it wasn't a problem with
the texture itself. There was no issue in switching it.
Thank you for looking at this.
Karl
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