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Restored ternary operator usage for older DXC compilers. Thanks SRSaunders

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This commit is contained in:
Robert Beckebans 2023-10-12 10:11:00 +02:00
parent 3998702981
commit 8f84e54bb0
1 changed files with 12 additions and 0 deletions
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12
neo/shaders/builtin/SSAO/ssao_compute.cs.hlsl
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@ -104,7 +104,11 @@ static const float g_RandomValues[16] =
// over the diagonals in the octahedral map
float2 octWrap( float2 v )
{
#if __HLSL_VERSION >= 2021
return ( 1.f - abs( v.yx ) ) * select( v.xy >= 0.f, 1.f, -1.f );
#else
return ( 1.f - abs( v.yx ) ) * ( v.xy >= 0.f ? 1.f : -1.f );
#endif
}
/**********************/
@ -116,7 +120,11 @@ float2 ndirToOctSigned( float3 n )
{
// Project the sphere onto the octahedron (|x|+|y|+|z| = 1) and then onto the xy-plane
float2 p = n.xy * ( 1.f / ( abs( n.x ) + abs( n.y ) + abs( n.z ) ) );
#if __HLSL_VERSION >= 2021
return select( n.z < 0.f, octWrap( p ), p );
#else
return ( n.z < 0.f ) ? octWrap( p ) : p;
#endif
}
// Converts a point in the octahedral map to a normalized direction (non-equal area, signed)
@ -127,7 +135,11 @@ float3 octToNdirSigned( float2 p )
// https://twitter.com/Stubbesaurus/status/937994790553227264
float3 n = float3( p.x, p.y, 1.0 - abs( p.x ) - abs( p.y ) );
float t = max( 0, -n.z );
#if __HLSL_VERSION >= 2021
n.xy += select( n.xy >= 0.0, -t, t );
#else
n.xy += n.xy >= 0.0 ? -t : t;
#endif
return normalize( n );
}