DirectX 11 (DX11) supports many actions that are not supported on other platforms (such as Metal or OpenGL ES). Therefore, you should always ensure your shaderA program that runs on the GPU. More info
See in Glossary has well-defined behavior on platforms that offer less support, rather than only on DX11. Here are few things to consider:
Out-of-bounds memory accesses are bad. DX11 might consistently return zero when reading, and read some writes without issues, but platforms that offer less support might crash the GPU when doing this. Watch out for DX11-specific hacks, buffer sizes not matching with multiple of your thread group size, trying to read neighboring data elements from the beginning or end of the buffer, and similar incompatibilities.
Initialize your resources. The contents of new buffers and Textures are undefined. Some platforms might provide all zeroes, but on others, there could be anything including NaNs.
Bind all the resources your compute shader declares. Even if you know for sure that the shader does not use resources in its current state because of branching, you must still ensure a resource is bound to it.
GetDimensions
queries on buffers. Pass the buffer size info as constant to the shader if needed.RWTextures<T>
that are not write-only.GraphicsFormat | RenderTextureFormat | HLSL type | GLSL image format qualifier |
---|---|---|---|
R32G32B32A32_SFloat | ARGBFloat | float4 | rgba32f |
R16G16B16A16_SFloat | ARGBHalf | min16float4/half4 | rgba16f |
R32G32_SFloat | RGFloat | float2 | rg32f |
R16G16_SFloat | RGHalf | min16float2/half2 | rg16f |
B10G11R11_UFloatPack32 | RGB111110Float | min10float3 | r11f_g11g_b10f |
R32_SFloat | RFloat | float | r32f |
R16_SFloat | RHalf | min16float/half | r16f |
R16G16B16A16_UNorm | ARGB64 | unorm min16float4/half4 | rgba16 |
A2B10G10R10_UNormPack32 | ARGB2101010 | unorm min10float4 | rgb10_a2 |
R8G8B8A8_UNorm | ARGB32 | unorm float4 | rgba8 |
R16G16_UNorm | RG32 | unorm min16float2/half2 | rg16 |
R8G8_UNorm | RG16 | unorm float2 | rg8 |
R16_UNorm | R16 | unorm min16float/half | r16 |
R8_UNorm | R8 | unorm float | r8 |
R16G16B16A16_SNorm | unsupported | snorm min16float4/half4 | rgba16_snorm |
R8G8B8A8_SNorm | unsupported | snorm float4 | rgba8_snorm |
R16G16_SNorm | unsupported | snorm min16float2/half2 | rg16_snorm |
R8G8_SNorm | unsupported | snorm float2 | rg8_snorm |
R16_SNorm | unsupported | snorm min16float/half | r16_snorm |
R8_SNorm | unsupported | snorm float | r8_snorm |
R32G32B32A32_SInt | ARGBInt | int4 | rgba32i |
R16G16B16A16_SInt | unsupported | min16int4 | rgba16i |
R8G8B8A8_SInt | unsupported | min12int4 | rgba8i |
R32G32_SInt | RGInt | int2 | rg32i |
R16G16_SInt | unsupported | min16int2 | rg16i |
R8G8_SInt | unsupported | min12int2 | rg8i |
R32_SInt | RInt | int | r32i |
R16_SInt | unsupported | min16int | r16i |
R8_SInt | unsupported | min12int | r8i |
R32G32B32A32_UInt | unsupported | uint4 | rgba32i |
R16G16B16A16_UInt | RGBAUShort | min16uint4 | rgba16ui |
R8G8B8A8_UInt | unsupported | unsupported | rgba8ui |
R32G32_UInt | unsupported | uint2 | rg32ui |
R16G16_UInt | unsupported | min16uint2 | rg16ui |
R8G8_UInt | unsupported | unsupported | rg8ui |
R32_UInt | unsupported | uint | r32ui |
R16_UInt | unsupported | min16uint | r16ui |
R8_UInt | unsupported | unsupported | r8ui |
A2B10G10R10_UIntPack32 | unsupported | unsupported | rgb10_a2ui |