forked from bartvdbraak/blender
Cleanup: sync map_to_sphere, UNLIKELY xy zero case
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13c5b0d546
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@ -1419,10 +1419,12 @@ ccl_device bool map_to_sphere(float *r_u, float *r_v,
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{
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float len = sqrtf(x * x + y * y + z * z);
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if(len > 0.0f) {
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if(x == 0.0f && y == 0.0f)
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if(UNLIKELY(x == 0.0f && y == 0.0f)) {
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*r_u = 0.0f; /* othwise domain error */
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else
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}
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else {
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*r_u = (1.0f - atan2f(x, y) / M_PI_F) / 2.0f;
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}
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*r_v = 1.0f - safe_acosf(z / len) / M_PI_F;
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return true;
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}
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@ -3206,8 +3206,12 @@ void map_to_sphere(float *r_u, float *r_v, const float x, const float y, const f
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len = sqrtf(x * x + y * y + z * z);
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if (len > 0.0f) {
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if (x == 0.0f && y == 0.0f) *r_u = 0.0f; /* othwise domain error */
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else *r_u = (1.0f - atan2f(x, y) / (float)M_PI) / 2.0f;
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if (UNLIKELY(x == 0.0f && y == 0.0f)) {
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*r_u = 0.0f; /* othwise domain error */
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}
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else {
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*r_u = (1.0f - atan2f(x, y) / (float)M_PI) / 2.0f;
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}
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*r_v = 1.0f - saacos(z / len) / (float)M_PI;
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}
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