3e6010d8c5
`half` cannot be bitcasted to `float`, because the two types are not the same size. Use an expanding cast instead. We were already doing this for stores to the tessellation levels; why I didn't also do this for loads is beyond me.
36 lines
1.6 KiB
GLSL
36 lines
1.6 KiB
GLSL
#include <metal_stdlib>
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#include <simd/simd.h>
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using namespace metal;
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struct main0_out
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{
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float4 gl_Position;
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};
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struct main0_in
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{
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float4 gl_Position [[attribute(0)]];
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};
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kernel void main0(main0_in in [[stage_in]], uint gl_InvocationID [[thread_index_in_threadgroup]], uint gl_PrimitiveID [[threadgroup_position_in_grid]], device main0_out* spvOut [[buffer(28)]], constant uint* spvIndirectParams [[buffer(29)]], device MTLQuadTessellationFactorsHalf* spvTessLevel [[buffer(26)]], threadgroup main0_in* gl_in [[threadgroup(0)]])
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{
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device main0_out* gl_out = &spvOut[gl_PrimitiveID * 4];
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if (gl_InvocationID < spvIndirectParams[0])
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gl_in[gl_InvocationID] = in;
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threadgroup_barrier(mem_flags::mem_threadgroup);
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if (gl_InvocationID >= 4)
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return;
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if (gl_InvocationID == 0)
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{
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spvTessLevel[gl_PrimitiveID].edgeTessellationFactor[0] = half(2.0);
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spvTessLevel[gl_PrimitiveID].edgeTessellationFactor[1] = half(3.0);
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spvTessLevel[gl_PrimitiveID].edgeTessellationFactor[2] = half(4.0);
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spvTessLevel[gl_PrimitiveID].edgeTessellationFactor[3] = half(5.0);
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spvTessLevel[gl_PrimitiveID].insideTessellationFactor[0] = half(mix(float(spvTessLevel[gl_PrimitiveID].edgeTessellationFactor[0]), float(spvTessLevel[gl_PrimitiveID].edgeTessellationFactor[3]), 0.5));
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spvTessLevel[gl_PrimitiveID].insideTessellationFactor[1] = half(mix(float(spvTessLevel[gl_PrimitiveID].edgeTessellationFactor[2]), float(spvTessLevel[gl_PrimitiveID].edgeTessellationFactor[1]), 0.5));
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}
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gl_out[gl_InvocationID].gl_Position = gl_in[gl_InvocationID].gl_Position;
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}
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