Reply To: isadora and syphon

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Sure, I have a beta of Isadora Core and have messed with it a bit. Because it can load Quarz Composer comps and Core Image units does not mean Isadora is using textures throughout the image processing pipeline. 20fps indicates to me not only is it not using textures all the time (or, in fact at all), its using less than adequate readback from GPU to CPU if even using the GPU for any intermediate processing.

Im not familiar enough with Isadora to make grand assumptions, but you should ask if Isadora uses the GPU throughout the image processing pipeline, and if not, what you should do in the patch to avoid any readback to the CPU.