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File: slope blur.jpg (223 KB, 1442x1017)
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Hey, i'm trying to figure out the underlying algrorithm behind the "Slope Blur" effect in Substance Designer.

I think it gets the main input and blurs it in an arbitrary direction for each pixel based on the other input. For example, black values blur in angle 0, and white values blur in angle 360.
That doesn't explain however, how some parts are blurred for a longer distance than others.

Another hypothesis is that the image is blurred in all directions, like a gaussian blur, but the range of the blur is modulated by the other input.

I hope someone can help me out.
Thanks
>>
File: slope.png (80 KB, 913x651)
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>>515008
Did you have a look at the reference graph? (right click -> open reference)

don't know if this helps



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