Grease Pencil layer clamp mode alpha error #62723
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Reference: blender/blender#62723
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System Information
Operating system: Windows-8.1-6.3.9600 64 Bits
Graphics card: GeForce GTX 970/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 417.22
Blender Version
Broken: version: 2.80 (sub 48), branch: master, commit date: 2019-03-15 00:41, hash:
388ff003e2Short description of error
Hi everyone, I've been working with the new Grease pencil tool and came across a bug. When you activate "clamp" on one layer, the layers beneath get a thin white outline (alpha error). A workaround is to add another layer just below your clamp layer and set it to any blending mode except "regular", such as "overlay" or "subtract". This can be seen in the images below. The extra layer with the nose "highlight" set to "overlay" removes the alpha error. Blend file attached. Toggle the "Correction Layer" on/off to see the edge appear.
Thanks for looking into this. :-)
alpha error.blend
Added subscriber: @AdamJanz
#63583 was marked as duplicate of this issue
I should mention drawing an object on that "correction layer" and applying an "invisible" material, with the alpha set to zero and setting the blend mode of the layer to a mode other than "regular" also is a workaround. It's just strange it happens in the first place.
Added subscribers: @antoniov, @ZedDB
@antoniov I think we already had a ticket for this, but I can't seem to find it now. Sorry if this is a duplicate.
Added subscriber: @llamaJeff
Added subscriber: @daniel.vanwesten
Closed as duplicate of #66293