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Cycles: Fixed OpenCL build. sqr(float4) is available on CUDA and CPU, but not on OpenCL.

This commit is contained in:
Stefan Werner 2018-07-30 15:42:00 +02:00
parent c8b6e3d777
commit b59d85b5a5
1 changed files with 1 additions and 1 deletions
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2
intern/cycles/kernel/kernel_light.h
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@ -75,7 +75,7 @@ ccl_device_inline float area_light_sample(float3 P,
/* Compute internal angles (gamma_i). */
float4 diff = make_float4(x0, y1, x1, y0) - make_float4(x1, y0, x0, y1);
float4 nz = make_float4(y0, x1, y1, x0) * diff;
nz = nz / sqrt(sqr(z0 * diff) + sqr(nz));
nz = nz / sqrt(z0 * z0 * diff * diff + nz * nz);
float g0 = safe_acosf(-nz.x * nz.y);
float g1 = safe_acosf(-nz.y * nz.z);
float g2 = safe_acosf(-nz.z * nz.w);