Hi Larry/Bryan, I think it would be worth purchasing the Orange Book on OpenGL Shader Language, and also looking at online tutorials.
Also have a look through the OSG examples and source code to see how shaders are used. Robert. On 6/27/07, Wasileski, Bryan J. <[EMAIL PROTECTED]> wrote:
Hi All again, One more forwarded question. >>>>>>>>>>>>> I had a few questions about vertex shaders, fragment shaders, and textures. First, if I write my own vertex shader, am I required to also write a fragement shader? If the answer is no, then when I write the vertex shader, what functionality must I include to ensure that all of the information that the vertex shader passes by default is still being properly passed to the fragment shader? For example, do I have to set the varying outputs of the vertex shader since I am changing the vertex shader? With regards to textures, do I have to explicity define each texture that I am using as a uniform and add it to the fragment shader? Or when I add the texture to the stateset, is there a way to access in the fragment shader without using the uniform? Is there a limit to the number of textures that a vertex can have? Thanks for the help. Larry _______________________________________________ osg-users mailing list [email protected] http://openscenegraph.net/mailman/listinfo/osg-users http://www.openscenegraph.org/
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