Vertex Colors not working in the BGE (for custom GLSL shaders) when multitexture and no material #34505

New Issue

Dalai Felinto · 2013-03-03T11:46:16+01:00

Dalai Felinto commented

2013-03-03 11:46:16 +01:00

%%%(before moving this to the game engine tracker, I could use some help with testing in other OSs/configs - also it may be something in Blender, not necessarily the BGE)

See vertexcolor249.blend (it can run in 2.49 or 2.66).
In the game (P) you should see the vertex colors of the cube. Instead gl_Color is returning 1.0, 1.0, 1.0 always.

I'm 95% sure that this should work in windows at least, so I don't know why OSX is the one not supporting this.
But if someone can please help confirming or refuting this bug in a different OS/gfx it would be of great help.
(tests in 2.49 and 2.66 if possible).

Thanks, my OSX is 10.8.2, and my graphic card is AMD Radeon HD 6750M
(note I tried in my windows vmware here but it didn't work either. I don't trust vmware for those tests though)

UPDATE: the original test file was bad, updated a new one%%%

%%%(before moving this to the game engine tracker, I could use some help with testing in other OSs/configs - also it may be something in Blender, not necessarily the BGE) See vertexcolor249.blend (it can run in 2.49 or 2.66). In the game (P) you should see the vertex colors of the cube. Instead gl_Color is returning 1.0, 1.0, 1.0 always. I'm 95% sure that this should work in windows at least, so I don't know why OSX is the one not supporting this. But if someone can please help confirming or refuting this bug in a different OS/gfx it would be of great help. (tests in 2.49 and 2.66 if possible). Thanks, my OSX is 10.8.2, and my graphic card is AMD Radeon HD 6750M (note I tried in my windows vmware here but it didn't work either. I don't trust vmware for those tests though) UPDATE: the original test file was bad, updated a new one%%%

Dalai Felinto commented

2013-03-03 11:46:16 +01:00

Changed status to: 'Open'

Thomas Dinges commented

2013-03-03 11:53:15 +01:00

%%%Windows 7, official 2.66: It shows white only after pressing P. (Geforce 540M and Intel HD 3000) %%%

Dalai Felinto commented

2013-03-03 12:02:47 +01:00

%%%Moved from Blender 2.6 Bug Tracker to Game Engine%%%

Dalai Felinto commented

2013-03-03 12:02:47 +01:00

%%%apparently material mode needs to be on GLSL mode for this to work. I have a vague memory of this working in MultiTexture, but I may be wrong.
closing the report%%%

%%%apparently material mode needs to be on GLSL mode for this to work. I have a vague memory of this working in MultiTexture, but I may be wrong. closing the report%%%

Dalai Felinto commented

2013-03-04 20:21:16 +01:00

%%%so, there are two workarounds:

to use GLSL
to use a material with the "Vertex Color Paint" option.

The bug was introduced in 2.58. But to make matters worse, it's only visible in 2.58a (2.58 shows 0,0,0 as vertex colors).
Attached a new test file (saved in 2.57) and in-game screenshots of 2.57, 2.58 and 2.58a.%%%

%%%so, there are two workarounds: 1) to use GLSL 2) to use a material with the "Vertex Color Paint" option. The bug was introduced in 2.58. But to make matters worse, it's only visible in 2.58a (2.58 shows 0,0,0 as vertex colors). Attached a new test file (saved in 2.57) and in-game screenshots of 2.57, 2.58 and 2.58a.%%%

Dalai Felinto commented

2013-03-04 23:25:42 +01:00

%%%this bug was introduced in rev. 36723
(but rev. 36543 makes all cubes black, which was reverted only on rev. 37773 - so for tests this review has to be manually reverted)%%%

%%%this bug was introduced in rev. 36723 (but rev. 36543 makes all cubes black, which was reverted only on rev. 37773 - so for tests this review has to be manually reverted)%%%

Dalai Felinto commented

2013-03-05 00:25:54 +01:00

%%%Attached are three options for the fix.
@Campbell, any suggestion?%%%

%%%Attached are three options for the fix. @Campbell, any suggestion?%%%

Mitchell Stokes commented

2013-03-05 00:37:16 +01:00

%%%In order to keep the codebase cleaner, I'd prefer to avoid too many if defmaterial checks, which makes me leaner closer to 1 and 2. It might be better if we don't modify defmaterials ourselves, which makes me prefer 1 over 2, but this is more Campbell's territory (modifying Blender defaults).%%%

Dalai Felinto commented

2013-03-22 00:22:11 +01:00

%%%bug fixed on rev. r55487 (after code cleanup by Campbell)
Thanks for the report.

you're welcome%%%

%%%bug fixed on rev. r55487 (after code cleanup by Campbell) Thanks for the report. - you're welcome%%%

Dalai Felinto commented

2013-03-22 00:22:11 +01:00

Changed status from 'Open' to: 'Resolved'

Dalai Felinto closed this issue

2013-03-22 00:22:11 +01:00

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Vertex Colors not working in the BGE (for custom GLSL shaders) when multitexture and no material #34505