How severely does this bug affect you?:
●●○○ — It's annoying but I can work around it.
Steps causing the bug to occur:
- Use Blend Image With Feedback node
- connect BIWF output to Blend Images
- also connect BIWF output to a blur or other filter, then connect filter output to Blend Images
- Blend Image With Feedback seems to get corrupted, but it is hard to pin down exactly what is happening. What I think seems to happen, is that Blend Image With Feedback seems to somehow start using the result one or two nodes down the line for feedback, not the actual input image.
Have you found a workaround?:
To manually create feedback and blend nodes from scratch.
Both of these nodes also seem to perform very inefficiently. Quickly substituting out the shadertoy node with similar shader functions results in much better, non-buggy performance.