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fix: glm_vec4_refract

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Gottfried Leibniz 2023-01-28 23:07:51 -04:00
parent fc8f4bb442
commit 1e1fd18b0b
1 changed files with 5 additions and 5 deletions
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10
glm/simd/geometric.h
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@ -105,14 +105,14 @@ GLM_FUNC_QUALIFIER __m128 glm_vec4_refract(glm_vec4 I, glm_vec4 N, glm_vec4 eta)
glm_vec4 const dot0 = glm_vec4_dot(N, I); glm_vec4 const dot0 = glm_vec4_dot(N, I);
glm_vec4 const mul0 = _mm_mul_ps(eta, eta); glm_vec4 const mul0 = _mm_mul_ps(eta, eta);
glm_vec4 const mul1 = _mm_mul_ps(dot0, dot0); glm_vec4 const mul1 = _mm_mul_ps(dot0, dot0);
glm_vec4 const sub0 = _mm_sub_ps(_mm_set1_ps(1.0f), mul0); glm_vec4 const sub0 = _mm_sub_ps(_mm_set1_ps(1.0f), mul1);
glm_vec4 const sub1 = _mm_sub_ps(_mm_set1_ps(1.0f), mul1); glm_vec4 const mul2 = _mm_mul_ps(mul0, sub0);
glm_vec4 const mul2 = _mm_mul_ps(sub0, sub1); glm_vec4 const sub1 = _mm_sub_ps(_mm_set1_ps(1.0f), mul2);
if(_mm_movemask_ps(_mm_cmplt_ss(mul2, _mm_set1_ps(0.0f))) == 0) if(_mm_movemask_ps(_mm_cmplt_ps(sub1, _mm_set1_ps(0.0f))) == 0x0F)
return _mm_set1_ps(0.0f); return _mm_set1_ps(0.0f);
glm_vec4 const sqt0 = _mm_sqrt_ps(mul2); glm_vec4 const sqt0 = _mm_sqrt_ps(sub1);
glm_vec4 const mad0 = glm_vec4_fma(eta, dot0, sqt0); glm_vec4 const mad0 = glm_vec4_fma(eta, dot0, sqt0);
glm_vec4 const mul4 = _mm_mul_ps(mad0, N); glm_vec4 const mul4 = _mm_mul_ps(mad0, N);
glm_vec4 const mul5 = _mm_mul_ps(eta, I); glm_vec4 const mul5 = _mm_mul_ps(eta, I);