Commit: 67e1c9735003bea56efb6ccfe7348dd7518ff25b
Author: Campbell Barton
Date: Mon Oct 19 12:31:20 2015 +1100
Branches: master
https://developer.blender.org/rB67e1c9735003bea56efb6ccfe7348dd7518ff25b
GPU: check for blit support, using MSAA FBO's
Used for reading off-screen buffers,
possible cause of failure for drivers that don't support it.
===================================================================
M source/blender/gpu/intern/gpu_extensions.c
===================================================================
diff --git a/source/blender/gpu/intern/gpu_extensions.c
b/source/blender/gpu/intern/gpu_extensions.c
index 1335e00..ce82a67 100644
--- a/source/blender/gpu/intern/gpu_extensions.c
+++ b/source/blender/gpu/intern/gpu_extensions.c
@@ -1450,8 +1450,12 @@ GPUOffScreen *GPU_offscreen_create(int width, int
height, int samples, char err_
}
if (samples) {
- if (!GL_EXT_framebuffer_multisample ||
- !GLEW_ARB_texture_multisample)
+ if (!GLEW_EXT_framebuffer_multisample ||
+ !GLEW_ARB_texture_multisample ||
+ /* Only needed for GPU_offscreen_read_pixels.
+ * We could add an arg if we intend to use multi-samle
+ * offscreen buffers w/o reading their pixels */
+ !GLEW_EXT_framebuffer_blit)
{
samples = 0;
}
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