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Game engine in GLSL, multiple UV material, UV maps are wrong or mixed
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System Information
Windows 8.1
Nvidia GeForce 710M

Blender Version
2.72 95182d1

Short description of error

I try to make a GLSL lightmap material with nodes. The material looks fine in the viewport, but when I press 'P', it looks different, both of the diffuse and lightmap textures use the same UV map.
The node setup contains:

  • Geometry node, the UV layout set to 'UVMap'
  • Texture node, with a simple image texture, this is connected to the previous node, through the UV
  • Another geometry node, set to 'lightmapUV'
  • Another texture node, with a lightmap texture (baked before, but error also if its from a file), connected the the second geometry node
  • Mix node, the 2 texture nodes' colors are coming in, the blend mode does not matter
  • Output node, color connected to the mix

Exact steps for others to reproduce the error

Press 'P' in a viewport, and see the difference
If you try to change the node setup, even if you leave out the mix node, wrong UV is used in many cases.



Event Timeline

Ádám Háda (hadahector) raised the priority of this task from to Needs Triage by Developer.
Ádám Háda (hadahector) updated the task description. (Show Details)
Ádám Háda (hadahector) set Type to Bug.
Julian Eisel (Severin) lowered the priority of this task from Needs Triage by Developer to Needs Information from User.Dec 9 2014, 5:46 PM

Hey @Ádám Háda (hadahector),
Is the bug still appearing in the latest builds from buildbot?

Yes it is, I've just downloaded and tried.

Julian Eisel (Severin) raised the priority of this task from Needs Information from User to Normal.Dec 9 2014, 5:54 PM