Vertex Paint bug with Falloff Angle #56111
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Reference: blender/blender#56111
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Blender Version
Broken: 2.79.x, Win32 & Mac
Short description of error
See video below.
To reproduce, set Falloff Angle to 45, and paint (one continuous stroke)
with the brush radius approximately equal to the object.
All by default (2D Falloff and Accumulate is OFF).
vertex-paint-falloff-angle-bug.blend
Small brush size is ok:
Increased size produces artifacts:
vertex-paint-falloff-angle-bug.mp4
Added subscriber: @jenkm
Added subscriber: @mont29
Please follow our submission template and guidelines, also read these tips about bug reports, and make a complete, valid bug report, with required info, precise description of the issue (only ONE issue per report!), precise steps to reproduce it, small and simple .blend and/or other files to do so if needed, etc.
Videos and/or links to external sites etc. are not acceptable as bug report (they can be provided as additional information only).
Just try to paint in the Vertex Paint mode, with Falloff Angle set to 30, and big brush radius.
Where the stroke overlaps itself takes place artifacts.
Try Sphere or subdivided Cube, not a flat surface.
This seems to happen when there is a surface with a large curvature under the brush.
Blender 2.79.6
83227de828vertex-paint-falloff-angle-bug.blend
Small brush size is ok:
Increased size produces artifacts:
Added subscribers: @ideasman42, @brecht
Can confirm the issue, but not so sure we can do much about that, this looks to me very similar to the terminator problem in rendering… @ideasman42 or @brecht may know better?
Added subscriber: @PabloDobarro
The new vertex paint implementation uses a different falloff and projection code (D5975), so it may solve this and other similar brush projection artifacts after it is merged. We may consider this for the implementation of attribute paint.