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splitting a video into separate textures


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hi! I was wondering if anyone had any advice here.. I have a large master video that contains a grid of smaller videos. I need to split this up into pieces and move them around individually.

My thought was to set up an off screen canvas element for each sub-video, then each frame drawImage the pixels into each canvas element. Then set up textures that read from the canvas elements, and add those to sprites.

I'm wondering if this is a bad idea, as I need to push the updated nPot canvas/textures to the GPU every frame.. Any other ideas for how to set this up?



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