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authorJeroen Bakker <jeroen@blender.org>2022-05-10 09:10:46 +0300
committerJeroen Bakker <jeroen@blender.org>2022-05-10 09:48:51 +0300
commit439f86ac89bdd649aa9ccfe258c5f80474788449 (patch)
treec2a6a3e183603360479a787e56805b1ac8bcf914 /source/blender/gpu/opengl
parent11aa237858d4a2f12db43bac97793606eda7f542 (diff)
Fix T97272: Lag when resizing viewports.temp-T97272
Viewports where cleared explicitly due to compatibility reasons with Intel iGPUs. This slowed down other platforms as well, this wasn't noticeable on all platforms. This patch will be more selective when to enable the workaround. Currently only for iGPUs on Mac + Linux.
Diffstat (limited to 'source/blender/gpu/opengl')
-rw-r--r--source/blender/gpu/opengl/gl_backend.cc7
1 files changed, 7 insertions, 0 deletions
diff --git a/source/blender/gpu/opengl/gl_backend.cc b/source/blender/gpu/opengl/gl_backend.cc
index 610fd5d980f..0ce01d80a77 100644
--- a/source/blender/gpu/opengl/gl_backend.cc
+++ b/source/blender/gpu/opengl/gl_backend.cc
@@ -419,6 +419,13 @@ static void detect_workarounds()
GCaps.shader_storage_buffer_objects_support = false;
}
+ /* Certain Intel based platforms don't clear the viewport textures. Always clearing leads to
+ * noticeable performance regressions. */
+ if (GPU_type_matches(
+ GPU_DEVICE_INTEL, static_cast<eGPUOSType>(GPU_OS_MAC | GPU_OS_UNIX), GPU_DRIVER_ANY)) {
+ GCaps.clear_viewport_workaround = true;
+ }
+
/* Metal-related Workarounds. */
/* Minimum Per-Vertex stride is 1 byte for OpenGL. */