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GPU: Fix SSE4 Vec3f normalize.

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Was sometimes adding in garbage data, which could create NANs.
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Unknown W. Brackets 2022-09-26 00:24:12 -07:00
parent 391320db52
commit c80f325912
1 changed files with 2 additions and 1 deletions
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3
GPU/Math3D.cpp
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@ -121,7 +121,8 @@ __m128 SSENormalizeMultiplierSSE2(__m128 v)
#endif
__m128 SSENormalizeMultiplierSSE4(__m128 v)
{
return _mm_rsqrt_ps(_mm_dp_ps(v, v, 0xFF));
// This is only used for Vec3f, so ignore the 4th component, might be garbage.
return _mm_rsqrt_ps(_mm_dp_ps(v, v, 0x77));
}
__m128 SSENormalizeMultiplier(bool useSSE4, __m128 v)