Commit: 37a07d8a75d0f133e1d2458b698e82e3c53c3273 Author: Jeroen Bakker Date: Thu Jun 11 15:34:16 2020 +0200 Branches: blender-v2.83-release https://developer.blender.org/rB37a07d8a75d0f133e1d2458b698e82e3c53c3273
Fix T77657: NVIDIA Quadro FX4800 crash on startup Limit support for `GLEW_ARB_base_instance` to OpenGL 4.0 and higher. NVIDIA Quadro FX 4800 (TeraScale) report that they support GLEW_ARB_base_instance, but the driver does not support `GLEW_ARB_draw_indirect` as it has an OpenGL3 context what also matches the minimum needed requirements. We use `GLEW_ARB_draw_indirect` as a target for `glMapBuffer(Range)` what is part of the OpenGL 4 API. So better disable it when we don't have an OpenGL4 context. Note: fix should be ported to Blender 2.83 LTS Reviewed By: Clément Foucault Differential Revision: https://developer.blender.org/D7994 =================================================================== 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 447a15f267b..c5c0de89768 100644 --- a/source/blender/gpu/intern/gpu_extensions.c +++ b/source/blender/gpu/intern/gpu_extensions.c @@ -304,7 +304,14 @@ void gpu_extensions_init(void) } } - GG.glew_arb_base_instance_is_supported = GLEW_ARB_base_instance; + /* Limit support for GLEW_ARB_base_instance to OpenGL 4.0 and higher. NVIDIA Quadro FX 4800 + * (TeraScale) report that they support GLEW_ARB_base_instance, but the driver does not support + * GLEW_ARB_draw_indirect as it has an OpenGL3 context what also matches the minimum needed + * requirements. + * + * We use it as a target for glMapBuffer(Range) what is part of the OpenGL 4 API. So better + * disable it when we don't have an OpenGL4 context (See T77657) */ + GG.glew_arb_base_instance_is_supported = GLEW_ARB_base_instance && GLEW_VERSION_4_0; GG.glew_arb_texture_cube_map_array_is_supported = GLEW_ARB_texture_cube_map_array; gpu_detect_mip_render_workaround(); _______________________________________________ Bf-blender-cvs mailing list [email protected] https://lists.blender.org/mailman/listinfo/bf-blender-cvs
