Hey, I just found a Technical Note (https://developer.apple.com/library/mac/#technotes/tn2143/_index.html#//apple_ref/doc/uid/DTS10003731) which says "Do not wrap CGImageRefs, CVImageBuffers, raw pixels data or OpenGL textures into CIImages to pass them to Quartz Composer as this will lead to a performance hit."
This surprised me, because in my app actually I rendering to texture using FBOs and passing them with CIImage imageFromTexture method. Did anybody compared the speed of the recommended way and FBO rendering actually? Thanks, Tamas
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