diff options
Diffstat (limited to 'indra/llmath/llvector4a.inl')
| -rw-r--r-- | indra/llmath/llvector4a.inl | 13 |
1 files changed, 5 insertions, 8 deletions
diff --git a/indra/llmath/llvector4a.inl b/indra/llmath/llvector4a.inl index 7c52ffef21..35a67204ec 100644 --- a/indra/llmath/llvector4a.inl +++ b/indra/llmath/llvector4a.inl @@ -460,16 +460,13 @@ inline void LLVector4a::setMax(const LLVector4a& lhs, const LLVector4a& rhs) mQ = _mm_max_ps(lhs.mQ, rhs.mQ); } -// Set this to (c * lhs) + rhs * ( 1 - c) +// Set this to lhs + (rhs-lhs)*c inline void LLVector4a::setLerp(const LLVector4a& lhs, const LLVector4a& rhs, F32 c) { - LLVector4a a = lhs; - a.mul(c); - - LLVector4a b = rhs; - b.mul(1.f-c); - - setAdd(a, b); + LLVector4a t; + t.setSub(rhs,lhs); + t.mul(c); + setAdd(lhs, t); } inline LLBool32 LLVector4a::isFinite3() const |