Hi all, I'm using vertex colors on my models to save on memory in a CAD-style application, as one color per geometry is more than sufficient for my needs.
However, is it possible to have specular highlights when using vertex colors? For instance, I'm adding a color as follows /////////////////////// osg::Geometry * coneBodyGeometry = new osg::Geometry(); ... // Set the Colour to the entire object osg::ref_ptr<osg::Vec4Array> colourArray = new osg::Vec4Array(); colourArray->push_back(osg::Vec4(1.0f, 0.5f, 0.5f, 1.0f)); coneBodyGeometry->setColorArray(colourArray.get()); coneBodyGeometry->setColorBinding(osg::Geometry::BIND_OVERALL); /////////////////////// However so far I can see the only way to add specular is via a StateSet. I previously had one stateset per object, but this consumed too much memory, so now have a shared stateset /////////////////////// sharedState = new osg::StateSet(); // Create a material osg::ref_ptr<osg::Material> mat = new osg::Material(); // Set specular attribute mat->setDiffuse(osg::Material::Face::FRONT_AND_BACK, osg::Vec4(0,0,0,0)); mat->setSpecular(osg::Material::FRONT, osg::Vec4f(1.0f, 1.0f, 1.0f, 1.0f)); mat->setShininess(osg::Material::FRONT, 12.0f); mat->setColorMode(osg::Material::ColorMode::SPECULAR); sharedState->setAttribute(mat.get(), osg::StateAttribute::Values::ON); sharedState->setMode(GL_COLOR_MATERIAL, osg::StateAttribute::ON); /////////////////////// Of course, the material then mixes its color with the vertex color, despite the fact that its transparent. Does anyone know a way to have specular on objects but either sharing stateset, or without a stateset? Thanks,
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