I am trying to experiment with GLSL shaders using Quartz Composer. I think that I am missing something in setting up the project. I can get the sample shaders to work, but I can't replicate these with a new blank composition.
How do you specify the surface that you want to render on for the shader? I can take the code from a working shader (e.g. GLSL - TorusMorph) and put it in a new composition and it doesn't show anything. I also noticed that GLSL - Lattice is rendered on the teapot, but I did not see any reference to the teapot in the composition. I am sure I am missing something obvious, but I have explored the menus and can't figure out how to specify what surface to render the shader on. BTW, I am just learning shaders and OpenGL and was hoping that Quartz Composer would be a good way to do this. My goal is to experiment with imaging algorithms using GLSL so I just need a rectangular surface to render onto. Regards, Dean Pulsifer -------------------- Believe in yourself, say what you mean, do what you say
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