| Bug ID | 94835 |
|---|---|
| Summary | Increase fragment shader sample limits from 16 to 32 (AMD Linux - Mesa/RadeonSi) |
| Product | Mesa |
| Version | git |
| Hardware | All |
| OS | Linux (All) |
| Status | NEW |
| Severity | normal |
| Priority | medium |
| Component | Drivers/Gallium/radeonsi |
| Assignee | dri-devel@lists.freedesktop.org |
| Reporter | esmith@feralinteractive.com |
| QA Contact | dri-devel@lists.freedesktop.org |
Please increase fragment shader sample limits from 16 to 32. This is causing serious issues with Company Of Heroes 2 as the engine needs more than 16 samplers to correctly render the floor. Please note: Mesa support 32 samplers with their Intel drivers, but not AMD. See GL_MAX_TEXTURE_IMAGE_UNITS_ARB in https://people.freedesktop.org/~imirkin/glxinfo/glxinfo.html Feral can provide a Steam key to active Mesa engineers working on this issue if that would help their progress. YOU should be abel to use Intel Mesa as a reference as that draws correctly as it has a higher texture sampler limit.
| What | Removed | Added |
|---|---|---|
| See Also | https://bugs.freedesktop.org/show_bug.cgi?id=94705, https://bugs.freedesktop.org/show_bug.cgi?id=91951 | |
| Blocks | 94705 |
Added links to: 94705 - CoH2 specific bug logged by an end user showing the side effect if the sampler limit is reached on AMD. 91951 - Unsure if exactly the same issue but potentially a similar root cause. This was logged agains ARMA 3 developer by another developer so I have no insight other than finding the bug when looking for duplicates before logging.
(In reply to Edwin Smith from comment #0) > Feral can provide a Steam key to active Mesa engineers working on this issue > if that would help their progress. A little bit off-topic, but would such a key be provided for people working on drivers other than radeonsi? [r600 and nvc0 come to mind] > YOU should be abel to use Intel Mesa as a > reference as that draws correctly as it has a higher texture sampler limit. By the way, that's only true for Haswell and newer. Ivybridge (gen7) is limited to 16, at least on Mesa.
I have a preliminary patch set for this, but I still need to put it through its testing paces.
(In reply to Ilia Mirkin from comment #2) > (In reply to Edwin Smith from comment #0) > > Feral can provide a Steam key to active Mesa engineers working on this issue > > if that would help their progress. > > A little bit off-topic, but would such a key be provided for people working > on drivers other than radeonsi? [r600 and nvc0 come to mind] Any reasonable request from an engineer working on this issue requesting a key to help with their efforts will be considered.
| What | Removed | Added |
|---|---|---|
| Status | NEW | RESOLVED |
| Resolution | --- | FIXED |
Implemented in Git master commit 2abe4f8d7dcdcff75c28958e1a691ebf6cdee1ac