diff options
| -rw-r--r-- | fft.shader | 15 |
1 files changed, 10 insertions, 5 deletions
@@ -7,6 +7,7 @@ Shader "yum_food/fft" _Radix ("Radix", Int) = 16 _Stage ("Stage", Int) = 0 [Toggle] _PassThrough ("Pass Through", Float) = 0 + [Toggle] _LDS ("Temporal LDS", Float) = 0 [Toggle] _Inverse ("Inverse FFT", Float) = 0 } SubShader @@ -47,8 +48,11 @@ Shader "yum_food/fft" int _Radix; int _Stage; float _PassThrough; + float _LDS; float _Inverse; + #define PHI 1.618033988749894 + // Helper function to compute integer power int int_pow(int base, int exp) { @@ -91,11 +95,12 @@ Shader "yum_food/fft" // If pass through is enabled, just return the input if (_PassThrough > 0.5) { -#if 0 - float lum = luminance(_MainTex.SampleLevel(point_clamp_s, uv, 0).rgb); -#else - float lum = luminance(_MainTex.SampleLevel(point_clamp_s, i.uv, 0).rgb); -#endif + float3 col = _MainTex.SampleLevel(point_clamp_s, uv, 0).rgb; + if (_LDS > 0.5) { + col += PHI * _Time[0]; + col = frac(col); + } + float lum = luminance(col); return float4(lum, lum, lum, 1); } |