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@ -10,8 +10,11 @@ This page quickly summarizes graphics driver quirks and issues present in GPU dr
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## Intel (Proprietary) <a name="intel-proprietary"/>
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**OpenGL** _(This driver is unsupported by RPCS3)_
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- GLSL compiler is broken
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**OpenGL**
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- [GLSL compiler is very broken](https://github.com/RPCS3/rpcs3/issues/6199) <br>
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» **Workaround** implemented: No <br>
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» **Reported**: No <br>
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» **Note**: Intel proprietary OpenGL drivers are unsupported by RPCS3 due to their poor state.
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- _There are likely other issues as well..._
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**Vulkan**
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@ -20,8 +23,10 @@ This page quickly summarizes graphics driver quirks and issues present in GPU dr
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## AMD (Proprietary) <a name="amd-proprietary"/>
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**OpenGL**
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- glMultiDrawArrays is broken. Workaround implemented and problem reported to AMD. No replies yet. See [this report.](https://community.amd.com/message/2858799)<br>
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[NOTE] This seems to be undefined behavior in the spec. The gl_VertexID propagation behavior across MultiDrawArrays is not defined, i.e whether it should continue incrementing of reset to 0 on a new instance. However, due to the comparison with a loop of [first, count] and implied functional equivalence, this may be interpreted as a bug. Either way, RPCS3 provides a workaround using index lookups.
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- [glMultiDrawArrays is broken](https://community.amd.com/message/2858799) <br>
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» **Workaround** implemented: **Yes** <br>
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» **Reported**: **Yes**, on 2018-04-25. No replies. <br>
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» **Note**: This seems to be undefined behavior in the spec. The gl_VertexID propagation behavior across MultiDrawArrays is not defined, i.e whether it should continue incrementing of reset to 0 on a new instance. However, due to the comparison with a loop of [first, count] and implied functional equivalence, this may be interpreted as a bug. Either way, RPCS3 provides a workaround using index lookups.
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**Vulkan**
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- Primitive restart is 'broken'. This seems to be a GCN hardware bug as it also affects mesa drivers to some extent. Workaround implemented. (confirmed - see [this commit](https://github.com/mesa3d/mesa/commit/eae8f49fc65e6e625f5e05d38c3bf1b61b84bd3d))
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@ -29,12 +34,14 @@ This page quickly summarizes graphics driver quirks and issues present in GPU dr
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## NVIDIA (Proprietary) <a name="nvidia-proprietary"/>
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**OpenGL**
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- FP precision issues with Nan/Inf values. Workaround implemented.<br>
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NOTE: This is not a driver bug as it can be considered implementation-defined behavior.
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- Floating point precision issues with Nan/Inf values<br>
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» **Workaround** implemented: **Yes** (automatic) <br>
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» **Note**: This is not a driver bug as it can be considered implementation-defined behavior.
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**Vulkan**
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- FP precision issues with Nan/Inf values. Workaround implemented.<br>
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NOTE: This is not a driver bug as it can be considered implementation-defined behavior.
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- Floating point precision issues with Nan/Inf values<br>
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» **Workaround** implemented: **Yes** (automatic) <br>
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» **Note**: This is not a driver bug as it can be considered implementation-defined behavior.
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## AMD (Mesa) <a name="amd-mesa"/>
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@ -44,7 +51,7 @@ This page quickly summarizes graphics driver quirks and issues present in GPU dr
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**Vulkan**
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- Primitive restart is 'broken'. This seems to be a GCN hardware bug as it also affects proprietary drivers. Workaround implemented. (confirmed - see [this commit](https://github.com/mesa3d/mesa/commit/eae8f49fc65e6e625f5e05d38c3bf1b61b84bd3d))
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- ~~LLVM8 codegen is broken. Use mesa with LLVM9 codegen to avoid this issue. Padoka PPA has the updated LLVM9 drivers for ubuntu users. See [this bug report.](https://bugs.freedesktop.org/show_bug.cgi?id=110970)~~ Fixed in newer versions of mesa based on later LLVM versions.
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- If using the experimental Southern Islands amdgpu support, enabling MSAA may cause the emulator to crash. This is a limitation of the driver, disable MSAA to work around this issue.
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- If using the experimental Southern Islands amdgpu support, enabling MSAA may cause the emulator to crash due to missing Vulkan Feature. This is a limitation of the driver, disable MSAA to work around this issue.
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- [Vertex explosion when using ACO shader compiler](https://gitlab.freedesktop.org/mesa/mesa/-/issues/2848). Use LLVM instead until the issue is fixed.
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@ -53,8 +60,9 @@ This page quickly summarizes graphics driver quirks and issues present in GPU dr
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- _No known problems at this time_
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**Vulkan**
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- [Diagonal corruption line](https://gitlab.freedesktop.org/mesa/mesa/issues/2671). Enable Strict Rendering Mode in RPCS3.
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- [Diagonal corruption line](https://gitlab.freedesktop.org/mesa/mesa/issues/2671) <br>
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» **Workaround** implemented: **Yes**, use Strict Rendering Mode <br>
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» **Reported**: **Yes**, on 2020-03-22. Quickly replied. <br>
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---
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