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by wolfspider 2959 days ago
Always love your work! Going to check this one out right away. Yeah GLES and readpixel aren’t friends like for instance GPUImage uses the hardware backbuffer to store it as a workaround: https://stackoverflow.com/questions/12813442/cvopenglestextu...

So it’s device specific to implement the same thing I believe GPUImage uses a stub for this to apply the same shaders you have in mind.