Feedback / Blend looks different when using Skia or Stride

Not sure if a bug or a question… I have this feedback pipeline set up for both a Circle drawn with Skia and a Circle coming from the Stride textures - and it looks totally different, the Stride version never goes back to fully black.

Is there somebody who could explain to me why that is?


Feedback.vl (30.3 KB)

Most probably the bit depth per color channel. If you have only 8 bits, it’s 256 steps which is not enough for the feedback to calculate the fade out smoothly. So make sure you have the texture format of the blend/feedback node at a higher bit depth. Unfortunately the IOBoxes in the gif don’t show the texture format.

Another issue might be the color space, blending in linear and gamma space looks differently.