Jeroen Bakker
fe5d2448c6
In glsl the clamp function has undefined behavior when min > max. For the clamp node this resulted in differences between cycles and eevee. This patch adds the expected implementation for minmax. The old clamp function is still used in cases where we know for certain that the input values are correct (math node clamp option). GPU uses optimized code and silicon in these cases.
15 lines
404 B
GLSL
15 lines
404 B
GLSL
void clamp_value(float value, float min, float max, out float result)
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{
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result = clamp(value, min, max);
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}
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void clamp_minmax(float value, float min_allowed, float max_allowed, out float result)
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{
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result = min(max(value, min_allowed), max_allowed);
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}
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void clamp_range(float value, float min, float max, out float result)
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{
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result = (max > min) ? clamp(value, min, max) : clamp(value, max, min);
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}
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