From 7be9339b0a0af740b969a5f1fc7bbf7724381283 Mon Sep 17 00:00:00 2001 From: lightningterror Date: Sat, 27 May 2017 16:05:03 +0200 Subject: [PATCH] Updated OpenGL and INTEL GPUs All you need to know (markdown) --- OpenGL-and-INTEL-GPUs-All-you-need-to-know.md | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/OpenGL-and-INTEL-GPUs-All-you-need-to-know.md b/OpenGL-and-INTEL-GPUs-All-you-need-to-know.md index 0621380..97b7fb0 100644 --- a/OpenGL-and-INTEL-GPUs-All-you-need-to-know.md +++ b/OpenGL-and-INTEL-GPUs-All-you-need-to-know.md @@ -1,10 +1,12 @@ # Information -Due to an inefficient driver OpenGL will perform poorly on INTEL GPUs. The driver lacks performance optimizations , several mandatory extensions are not supported as well as lagging behind in OpenGL version support. +Due to an inefficient driver OpenGL will perform poorly on INTEL GPUs on Windows. The driver lacks performance optimizations , several mandatory extensions are not supported as well as lagging behind in OpenGL version support. -Intel doesn't seem to care much about providing fully working drivers. Even Kaby Lake doesn't support OpenGL 4.5 +Intel doesn't seem to care much about providing fully working drivers. Even Kaby Lake doesn't support OpenGL 4.5. -There is a PCSX2 discussion thread regarding the mentioned issues [here](https://github.com/PCSX2/pcsx2/issues/1716). +There is a PCSX2 discussion thread regarding the mentioned issues [here](https://github.com/PCSX2/pcsx2/issues/1716). + +Linux doesn't suffer from the same issues. Sandy Bridge and above have most if not all of their functions and extensions working. *** @@ -27,4 +29,10 @@ A: Check your generation. Anything below Ivy Bridge won't run on Windows. Ivy Br A: Set Blending Unit Accuracy to "None". Intel GPUs don't support GL_ARB_texture_barrier hence you will no be able to use the feature. **Q How is performance ?** -A: Performance should be better on OpenGL compared to Direct3D even with the missing functions and extensions. \ No newline at end of file +A: Performance should be better on OpenGL compared to Direct3D even with the missing functions and extensions. + +*** + +### Possible workaround on windows: +There is a Mesa llvmpipe for intel IGPUs for windows that is available [here](https://github.com/pal1000/mesa-dist-win) but expect very slow performance. Multithreaded optimizations are needed. +Sandy Bridge and up are supported. \ No newline at end of file