glslang/Test/hlsl.clipdistance-4.vert
LoopDawg c44b95fdec WIP: HLSL: handle clip/cull distance array semantic matching
In HLSL, there are three (TODO: ??) dimensions of clip and cull
distance values:

  * The semantic's value N, ala SV_ClipDistanceN.
  * The array demension, if the value is an array.
  * The vector element, if the value is a vector or array of vectors.

In SPIR-V, clip and cull distance are arrays of scalar floats, always.

This PR currently ignores the semantic N axis, and handles the other
two axes by sequentially copying each vector element of each array member
into sequential floats in the output array.

Fixes: 
2017-06-23 13:06:53 -06:00

22 lines
457 B
GLSL

struct VS_INPUT {
float4 Position : POSITION;
};
struct VS_OUTPUT {
float4 Position : SV_Position;
float4 ClipRect : SV_ClipDistance0; // vector in split struct
};
VS_OUTPUT main(const VS_INPUT v)
{
VS_OUTPUT Output;
Output.Position = 0;
Output.ClipRect.x = 1;
Output.ClipRect.y = 2;
Output.ClipRect.z = 3;
Output.ClipRect.w = 4;
return Output;
}