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Can IR be calculated in reverse frame?


redhafauzi
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Can IR be calculated in reverse frame? like, instead of going from frame 0 to 10, we go from 10 - 0.

 

This question came across my mind when i'm doing a sequence of a camera dolly in, so it become closer to an object in the scene. If I set the IR as incremental add to current map, and start the calculation from frame 0, that means every time the camera gets closer to an object, the object's surface got bigger (according to screen size) then new samples have to be calculated. Instead, if I can reverse the frame starting from the point where its closer to the object, it will start to calculate more samples, and as it gets further away, there's no need to do any new samples unless if there's any object unseen from closer angle. This sort of uncertain 'theory' can help in reducing the pre-pass time, i guess. correct me if i'm wrong.

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