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Cycles: SSE optimization for Voronoi cells texture

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Gives 5-6% speedup for Caterpillar_PatazStudio.blend.

Reviewed By: brecht, dingto

Differential Revision: https://developer.blender.org/D419
This commit is contained in:
Sv. Lockal
2014-04-03 23:34:53 +04:00
parent c019ae5ea3
commit ab32a1807d
5 changed files with 115 additions and 27 deletions
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14
intern/cycles/kernel/svm/svm_noise.h
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@@ -357,15 +357,13 @@ ccl_device float3 cellnoise_color(float3 p)
return make_float3(r, g, b);
}
#else
ccl_device float3 cellnoise_color(const float3& p)
ccl_device __m128 cellnoise_color(const __m128& p)
{
__m128i v_yxz = quick_floor_sse(_mm_setr_ps(p.y, p.x, p.z, 0.0f));
__m128i v_xyy = shuffle<1, 0, 0, 3>(v_yxz);
__m128i v_zzx = shuffle<2, 2, 1, 3>(v_yxz);
__m128 rgb = bits_to_01_sse(hash_sse(v_xyy, v_yxz, v_zzx));
float3 result = *(float3*)&rgb;
return result;
__m128i ip = quick_floor_sse(p);
__m128i ip_yxz = shuffle<1, 0, 2, 3>(ip);
__m128i ip_xyy = shuffle<0, 1, 1, 3>(ip);
__m128i ip_zzx = shuffle<2, 2, 0, 3>(ip);
return bits_to_01_sse(hash_sse(ip_xyy, ip_yxz, ip_zzx));
}
#endif