hack luv

8ef19e76 · marina.kolpakova · 0e1005ca · 8ef19e76
Commit 8ef19e76 authored Nov 28, 2012 by marina.kolpakova
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icf-sc.cu modules/gpu/src/cuda/icf-sc.cu +2 -1

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--- a/modules/gpu/src/cuda/icf-sc.cu
+++ b/modules/gpu/src/cuda/icf-sc.cu
@@ -65,7 +65,8 @@ namespace icf {
        const float _u = __fdividef(4.f * x, divisor);
        const float _v = __fdividef(9.f * y, divisor);

-        const float L = fmax(0.f, ((116.f * cbrtf(y)) - 16.f));
+        float hack = static_cast<float>(__float2int_rn(y * 2047)) / 2047;
+        const float L = fmax(0.f, ((116.f * cbrtf(hack)) - 16.f));
        const float U = 13.f * L * (_u - _ur);
        const float V = 13.f * L * (_v - _vr);