ShaderConstants

Remarks

Every method takes the offset rather than deriving one: the generated code carries the numbers out of the shader's reflection, so the layout a host writes is by construction the layout the backends emitted. Computing offsets here would be computing them a second way, which is the arrangement that lets a host and a shader disagree about float3 padding — and disagree silently, because every byte still lands inside the buffer.

What these have to know that a memcpy does not. std140 is not the CLR's layout, and three cases differ: a bool occupies four bytes, a float3 is twelve bytes on a sixteen-byte boundary, and a matrix is stored by column with each column padded to its stride. A Matrix4x4 happens to be a straight blit, and that is not luck — see Write.

Methods (13)

• public static void Write(Span<byte> buffer, int offset, float value)

  Writes a float.

• public static void Write(Span<byte> buffer, int offset, int value)

  Writes an int.

• public static void Write(Span<byte> buffer, int offset, uint value)

  Writes a uint.

• public static void Write(Span<byte> buffer, int offset, bool value)

  Writes a bool as the four bytes a shader reads it as.

• public static void Write(Span<byte> buffer, int offset, in Vector2 value)

  Writes a float2.

• public static void Write(Span<byte> buffer, int offset, in Vector3 value)

  Writes a float3 — twelve bytes, with the fourth left as it was.

• public static void Write(Span<byte> buffer, int offset, in Vector4 value)

  Writes a float4.

• public static void Write(Span<byte> buffer, int offset, in Int2 value)

  Writes an int2.

• public static void Write(Span<byte> buffer, int offset, in Int3 value)

  Writes an int3 — twelve bytes, as Write.

• public static void Write(Span<byte> buffer, int offset, in Int4 value)

  Writes an int4.

• public static void Write(Span<byte> buffer, int offset, in Matrix4x4 value)

  Writes a mat4 — the host's sixty-four bytes, unchanged.

• public static void Write(Span<byte> buffer, int offset, in Matrix3x3 value, int columnStride)

  Writes a mat3, padding each column to .

• public static void WriteArray<T>(Span<byte> buffer, int offset, int stride, int length, ReadOnlySpan<T> values) where T : unmanaged

  Writes each element of at .

Used by (69, showing 40)

• AmbientCombineConstantsVixen.Rendering.PostFx
• AutoExposureConstantsVixen.Rendering
• BloomConstantsVixen.Rendering
• ClusterRasterConstantsVixen.Rendering
• ClusterSoftwareRasterConstantsVixen.Rendering
• DepthOfFieldConstantsVixen.Rendering
• DistanceFieldAoGlobalDistanceFieldDistanceFieldVolumesElementVixen.Rendering.PostFx
• DistanceFieldAoPerMaterialConstantsVixen.Rendering.PostFx
• FogConstantsVixen.Rendering.PostFx
• ForwardPlusCascadesElementVixen.Rendering
• ForwardPlusGlobalDistanceFieldDistanceFieldVolumesElementVixen.Rendering
• ForwardPlusLightsElementVixen.Rendering
• ForwardPlusPerDrawConstantsVixen.Rendering
• ForwardPlusPerFrameConstantsVixen.Rendering
• ForwardPlusPerMaterialConstantsVixen.Rendering
• ForwardPlusPerViewConstantsVixen.Rendering
• ForwardPlusProbeVolumesElementVixen.Rendering
• FxaaConstantsVixen.Rendering.PostFx
• GrassConstantsVixen.Rendering.Terrain
• GrassScatterConstantsVixen.Rendering.Terrain
• ImpostorCaptureConstantsVixen.Rendering
• ImpostorConstantsVixen.Rendering.Terrain
• ImpostorFinishConstantsVixen.Rendering
• IndirectDiffusePerFrameConstantsVixen.Rendering.PostFx
• IndirectDiffusePerMaterialConstantsVixen.Rendering.PostFx
• IrradianceFillGlobalDistanceFieldDistanceFieldVolumesElementVixen.Rendering
• IrradianceFillPerMaterialConstantsVixen.Rendering
• IrradianceRepairConstantsVixen.Rendering
• LensFlareConstantsVixen.Rendering
• LightingConstantsVixen.Shaders.Tests
• LightingLightsElementVixen.Shaders.Tests
• LocalExposureConstantsVixen.Rendering
• MotionBlurConstantsVixen.Rendering
• MotionVectorsPerMaterialConstantsVixen.Rendering
• MotionVectorsPerViewConstantsVixen.Rendering
• OutlineConstantsVixen.Rendering.PostFx
• ParticleSpritePerMaterialConstantsVixen.Rendering
• ParticleSpritePerViewConstantsVixen.Rendering
• PlaceholderConstantsVixen.Rendering
• ReflectionTraceGlobalDistanceFieldDistanceFieldVolumesElementVixen.Rendering