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+--- Thread: Blur with better control over the curve? (/Thread-Blur-with-better-control-over-the-curve)
Blur with better control over the curve? - Asterra - 12-17-2021
Not sure what terminology to use. The Gaussian blur by default is applying a gentle bell curve to the blur, so that it tapers off more and more gradually as the value approaches 0% (or 100%). In the end, the blur winds up extending extremely far—much further than the actual limit suggested by the specified radius, for example.
I'm hoping there's a way to tighten that curve. Make it less of a bell. Ideally, the ability to directly program the curve would be nice.
Edit: Since it's on-topic, some convenient means of forcing the blur to affect all four channels (rather than literally only alpha) would also be nice.
RE: Blur with better control over the curve? - Ofnuts - 12-17-2021
You can completely shape the alpha by adding a layer mask (transfer alpha to mask) and then using Curves on the mask.