State:New|TargetRelease:No Target|icon_bug|database:public|icon_mari|Resolution:Fixed|BugID:506692|
Problem summary
Baking paint with low Virtual Texture Resolution can produce artifacts with some AMD GPUs
This issue has been reproduced by Support using an AMD Radeon HD 7900 with driver version Adrenalin 21.5.1.
It has also been reported by customers with the following GPUs and driver versions:
AMD Radeon RX 6600 XT - Adrenaline 21.12.1 and Enterprise 21.Q4
AMD Radeon RX 5700 XT - Adrenaline 22.3.1
Customer reported version
Mari 4.8v2
Customer reported platform
Windows 10
Steps to reproduce
(With an AMD Radeon HD 7900 and driver version Adrenalin 21.5.1)
1) Launch Mari in --safer mode and open a fresh Example Project
2) Turn the Virtual Texture Resolution (Edit > Preferences > GPU > Virtual Texture > Resolution) to 2048*2048
3) Target the 'Diffuse_Color' Paint node
4) While viewing the Principled BRDF Shader node, apply some paint to the model and bake it
Expected behaviour
The paint should be baked to the model as it appeared in the Paint Buffer.
Actual behaviour
Blocky artifacts appear around the paint stroke when it is baked:

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