hey, I was working on shaders recently and put some stuff online http://www.parasitaere-kapazitaeten.net/Pd/4shaders shader #3 is the most advanced, uses a normal map texture. but I am still running into problems when using multiple shaders. the problem (again) is, that gl_MultiTexCoords1 does not get the correct values passed from GEM. so the 4th shader should use two images of different sizes, but I only got it working very rudimentary. If anyone can help me with this, it would solve a very big problem! (chris?) Thanks to vade so far for his support! marius.