[Solved] 0ad game error: "Failed to compile shader" (TCL16 x86_64)

[GNUser]

At this point, 0ad is only game that's not working perfectly on TCL16. I'm trying to run the AppImage for 0ad version 0.27 available here.

Game seems to successfully start, but I see this error message superimposed on the title screen:

Code: [Select]

error: Failed to compile shader 'shaders/glsl/compute_upscale_fsr.cs':
error: 0:1(10): error: GLSL 4.30 is not supported. Supported versions are: 1.10, 1.20, 1.30, 1.40, 1.50, 3.30, 4.00, 4.10, 4.20, 1.00 ES, and 3.00 ES.
error: 0:0(0): error: Compute shaders require GLSL 4.30 or GLSL ES 3.10Followed by similar errors related to  shaders/glsl/compute_rcas.cs  and  shaders/glsl/compute_downscale.cs

Game is sometimes playable after those errors scroll by, sometimes crashes. When quitting from game, X consistently crashes.

Any ideas how to make these errors go away? I already tried everything I learned in this thread but nothing there seems to help with this.

P.S. I just noted how strange it is that first it says that GLSL 4.30 is not supported, then it says GLSL 4.30 (or GLSL ES 3.10) is required.

[GNUser]

I discovered that 0ad writes log files to ~/.config/0ad/logs. The logs are attached (the errors that apper on the title screen also appear in mainlog.html).

[Rich]

Hi GNUser

... P.S. I just noted how strange it is that first it says that GLSL 4.30 is not supported, then it says GLSL 4.30 (or GLSL ES 3.10) is required.

I think that's just the softwares way of politely saying "you're screwed"

[GNUser]

I think that's just the softwares way of politely saying "you're screwed"

Hi Rich. Yeah, that's a great paraphrase

I don't have time to investigate this further. Sorry for the noise.

Happy hacking

[GNUser]

In the unlikely event that another TCL user bumps into this issue: The solution turned out to be appending postproc = "false" to ~/.config/0ad/config/user.cfg

Root cause was a bug in how the game determines which graphics features to turn on based on the available hardware. The game was turning on a feature ("post processing compute shaders") that requires GLSL 4.30, even though my old X230 laptop doesn't have the specs for that:

Code: [Select]

$ ./glxinfo | grep -i opengl
OpenGL vendor string: Intel
OpenGL renderer string: Mesa Intel(R) HD Graphics 4000 (IVB GT2)
OpenGL ES profile shading language version string: OpenGL ES GLSL ES 3.00
Ref: https://gitea.wildfiregames.com/0ad/0ad/issues/7734

The 0ad developers fixed the bug for next release (https://gitea.wildfiregames.com/0ad/0ad/pulls/7737)

Thread may be marked as Solved.

[Rich]

Hi GNUser

... Thread may be marked as Solved.

Done.