UT_ColorBlackbody.h

Go to the documentation of this file.

#ifndef _UT_BlackbodyColor_
#define _UT_BlackbodyColor_

#include "UT_API.h"
#include "UT_Color.h"

// Returns the blackbody emission color for the given temperature in Kelvin.
// The color corresponds to integrating the blackbody emission curve over the
// visible wavelengths.
UT_API extern UT_Color UTgetBBColor(float temperature);

// Modifies the given ramp to contain the blackbody spectrum ranging from 0 to
// maxtemp. The ramp will have N equidistant control points (with linear
// interpolation).
UT_API extern void UTinitPhysicalBBRamp(UT_Ramp& ramp, float maxtemp = 40000,
                                        int N = 64);

#endif