Factorio Forums

I'm getting artifacting on the terrain. Looks like this: http://steamcommunity.com/id/unboxious/ ... 4604850343.

I'm running Arch Linux with the LTS 4.9 kernel. I'm using the open-source AMDGPU drivers, with an R9 290X GPU. Let me know what other information you need (save files, logs, etc.) and I'll get them for you.

the devs always want a log file. How to report a bug - READ BEFORE POSTING

My bad! Attached are the log files. I left the save out because this is happening on all of my old saves (well, at least two of them from 0.15), and on new games also.

Edit: It runs fine on Windows, on the same machine.

great, appreciate it. welcome to the forums BTW.

Try deleting crop-cache.dat from your installation directory.

Hi, I've been looking into this and it seems like it could be a driver bug. If it's not too much trouble, could you check if the problem persists on a different driver?

Could you please save this file to Steam/steamapps/common/Factorio/data/core/graphics/shaders/ ? (Overwrite the one that is already there)
and try to run the game again?

Loewchen wrote:Try deleting crop-cache.dat from your installation directory.

Gave that a try; it didn't work.

jiri wrote:Hi, I've been looking into this and it seems like it could be a driver bug. If it's not too much trouble, could you check if the problem persists on a different driver?

I really wish I could say it isn't too much trouble, but it actually would be: https://wiki.archlinux.org/index.php/AMDGPU#AMDGPU_PRO. That's a shame, because odds are pretty high that you're right about it being a driver issue. That having been said, this driver did work with 0.15.

posila wrote:Could you please save this file to Steam/steamapps/common/Factorio/data/core/graphics/shaders/ ? (Overwrite the one that is already there)
and try to run the game again?

I gave that a try, didn't work.

Anyways, thanks for the responses, and sorry it took me so long to get back to you! I'm in the middle of wrapping up a semester, and pretty much everything was due today. It's done now though. *phew*.

Unboxious wrote:That having been said, this driver did work with 0.15.

There have not been any critial shaders in 0.15, so you wouldn't know they don't work, unless you watched someone's video and see they don't have green tinted night vision.

The driver complains OpenGL 4.5 is not supported when trying to compile the shaders, which makes no sense as they have header for version 1.2
We though maybe Windows style line endings confuse it, so the file I shared here, was the shader converted to UNIX style line endings.

If you want, you could try to edit the shader and change the version header to #version 130 or #version 150

posila wrote:

Unboxious wrote:If you want, you could try to edit the shader and change the version header to #version 130 or #version 150

Okay, I'll try to remember to give that a try later today.

I've been doing some more investigation into this over the weekend and it seems like it probably is a driver issue, since I've seen similar issues pop up with other projects too, the common denominator being the open-source AMD driver.

However, I don't want to leave it at that, so I'll try to see if there's anything I can do about it over the next few days. I'll also try to reach out to the driver maintainers to see if there's a known workaround for this

If you want, you could try to edit the shader and change the version header to #version 130 or #version 150

That didn't work either. Thanks for trying though! I think it really is probably a driver problem as jiri suggested.

For 0.16.6 I made a change that if alpha-masking shader is disabled, it will render tiles and transitions without any tint, so it won't look so ugly, at least.
Other than that ... we tried to add pre-compiled OpenGL shaders, but it didn't work with version of OpenGL we use.

posila wrote:For 0.16.6 I made a change that if alpha-masking shader is disabled, it will render tiles and transitions without any tint, so it won't look so ugly, at least.
Other than that ... we tried to add pre-compiled OpenGL shaders, but it didn't work with version of OpenGL we use.

Just tested it. Looks much better; even though it isn't a perfect solution, the remaining graphical issues aren't distracting at all. Thanks!