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Quartz Composer 4.5Lion GLSL - Initial Black Empty Space Render?I am finding that GLSL shaders are sometimes cropping up as black prior to rendering properly upon being stopped and restarted in QC 4.5 in Lion. Anyone else? Find attached one GLSL shader that has done this. Doubtless it is fine and dandy as GLSL goes, so I guess the problem lies elsewhere, outside of the shader code. That said , most of the examples that I could throw into the example thread are like, or pretty much like, the one posted here, which is pretty generic in its code, being simply the default shader accompanied by some stock patches
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