This extension is used to detect support for gl_InstanceID and gl_VertexID. However, in more recent
versions of OpenGL, this is built-in functionality. On my system, it does not list that extension,
even though it supports those features, but BGFX was not detecting that.
Updated detection to look for GL>=3.1.
Note 1: even with this change, you do need to compile BGFX with the appropriate
BGFX_CONFIG_RENDERER_OPENGL value (>=31). The default of 21 is not high enough.
Note 2: Even with all of the above, you will likely hit issues with duplicate '#version' lines in
the generated shader code. For that, see issue #xxxx.
fixes issue #2570
* WebGPU: Add texture format (shaderc bin version 10)
* WebGPU: Simplify storage images + Fix format decorations
* Shaderc: Cleanup Texture name assumption in textures
The default provoking vertex on OpenGL is the last of a triangle, but
on D3D and Vulkan it is the first.
This patch sets the provoking vertex to the first vertex on OpenGL.
* D3D12: Fix readback for non-zero mip
* Fix blit with non-zero mip
This required clamping the blit extents to the mip size, which is moved out of the renderers now
* Assert formatting
* Adds UAV support for D3D12, Vulkan and reworked support for OpenGL, D3D11
UAV support is now uniform across compute and draw.
To set a UAV you just use bgfx::setImage() and IMAGE2D in the shader, just like in compute.
Due to these changes shaders will have to be recompiled.
The changes include:
- D3D11 requires patching of the UAV slot number (which is now done by modifying the DXBC instead of using a macro)
- If the DXBC binary includes a debug chunk, that is also patched to match the new slot number
- All the other renderers don't need any kind of patching
- There are some shader annotations to better convert the UAV format used in hlsl to spirv
Possibility of further enhancements:
- bgfx::setViewFrameBuffer() only supports binding to a framebuffer or, using BGFX_INVALID_HANDLE, to bind the default backbuffer. This doesn't allow for the case where there is no need to bind to either one of them, for example when using a fragment shader only to read and write to an UAV.
* Bump shader version, because they need to be recompiled.
