IrStageIo

Remarks

is what multiple render targets are made of. A stage interface variable gets one location and therefore has to be one scalar or vector, so a fragment stage writing four targets returns a struct and the entry-point wrapper takes it apart — one extract, one store, per target. Recording the index here rather than re-deriving it in each backend keeps the two from disagreeing about which member is which target.

Fields and properties (5)

• public string Name

  The interface variable's name.

• public IrType Type

  Its type, which StageInterface has to accept.

• public string? Semantic

  The pipeline semantic, if any.

• public int? Member

  For an output, the index of the returned struct's member this output takes its value from; null when the output is the returned value.

• public InterpolationMode Interpolation

  How the rasteriser interpolates it, from [Interpolation("…")] on the parameter. Only a fragment stage's inputs can carry one; everything else is Smooth and means nothing.

Methods (1)

• public IrStageIo(string Name, IrType Type, string? Semantic, int? Member = null, InterpolationMode Interpolation = Smooth)

  One input or output of an entry point.

Used by (11)

• GlslEmitterVixen.Raven
• ImportPrunerVixen.Raven
• IrCapabilitiesVixen.Raven
• IrEntryPointVixen.Raven
• IrPrinterVixen.Raven
• LowererVixen.Raven
• LoweringTestsVixen.Raven.Tests
• ReflectionBuilderVixen.Raven
• RenderTargetTestsVixen.Raven.Tests
• SpirvEmitterVixen.Raven
• StreamPlanVixen.Raven