Add dielectric material
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@@ -49,9 +49,14 @@ vec3_t vec3_hadamard(vec3_t v, vec3_t u)
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};
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}
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double vec3_len_squared(vec3_t v)
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{
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return v.x * v.x + v.y * v.y + v.z * v.z;
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}
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double vec3_len(vec3_t v)
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{
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return sqrt(v.x * v.x + v.y * v.y + v.z * v.z);
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return sqrt(vec3_len_squared(v));
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}
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vec3_t vec3_unit(vec3_t v)
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