Animmaniac wrote:You can fix this by manually adding a 1px transparent border to your images or extending the effect bounding box in the shader xml.
Animmaniac wrote:I did some tests but I can't reproduce this inconsistent behavior that you are describing.
You can try for yourself here.
*I did some modifications to the shader based on what I think you are trying to achieve, but it works the same regardless of the modifications.
Animmaniac wrote:Are you getting the same results?
Animmaniac wrote:I see now, I get the same glitched results. It's strange that the problem only occurs at a specific stack order.
Animmaniac wrote:But it's definitely a bug.
Animmaniac wrote:Now I understand why one of my drop shadow shaders behaves weirdly when I change the opacity of an object or layer it's applied to. It's probably related to the problem you depicted in the other topic.
Animmaniac wrote:My guess is that it happens in C2's compositor. Maybe it can be an overlook caused by some kind of render optimization (?).
I have a very recent Nvidia card with up to date drivers, so there's only a very small chance of being a driver's bug.
Somebody wrote:Amen to that! Finally someone gets it!
Somebody wrote:Huh, you also have a drop shadow Shader? Or it hasn't been published?
Animmaniac wrote:I recommend posting a minimal repro capx as example if you find glitches like these, otherwise is hard for someone to know if it's really a bug. There's too much variables involved, and sometimes depending how it is setup it doesn't show up (like this time). I tested your shader and it worked as expected initially. But it needs a different stack order to manifest.
Somebody wrote:I have dozens of shaders that I did to myself but I never published (except for Alpha Threshold and old CC effects). Most of them still needs proper descriptions for parameters, some code clean up to remove commented junk, and proper usage examples. Like I said in another topic, I intend to publish them sometime but I never find the time to do it. Someday perhaps...
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