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fix refract
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@@ -1901,7 +1901,7 @@ TEST_IMPL(GLM_PREFIX, vec3_refract) {
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eta = 1.33f / 1.0f;
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r = GLM(vec3_refract)(v, N, eta, dest);
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if (!(dest[0] == 0.0f && dest[1] == 0.0f && dest[2] == 0.0f)) {
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ASSERT(dest[1] < -sqrtf(0.5f));
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ASSERT(dest[1] < -0.3f);
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ASSERT(r == true);
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} else {
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ASSERT(dest[0] == 0.0f && dest[1] == 0.0f && dest[2] == 0.0f);
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@@ -1922,7 +1922,7 @@ TEST_IMPL(GLM_PREFIX, vec3_refract) {
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/* Expect bending towards the normal, less bending than air to glass */
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ASSERT(r == true);
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ASSERT(dest[1] < -sqrtf(0.5f));
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ASSERT(dest[1] < -0.6f);
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/* Diamond to Air (eta = 2.42 / 1.0) */
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eta = 2.42f / 1.0f;
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