23 lines
646 B
Text
23 lines
646 B
Text
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#version 330 core
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// Extraterrestial Solar Irradiance Spectra, units W * m^-2 * nm^-1
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// https://www.nrel.gov/grid/solar-resource/spectra.html
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const vec4 sun_spectral_irradiance = vec4(1.679, 1.828, 1.986, 1.307);
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const mat4x3 M = mat4x3(
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137.672389239975, -8.632904716299537, -1.7181567391931372,
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32.549094028629234, 91.29801417199785, -12.005406444382531,
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-38.91428392614275, 34.31665471469816, 29.89044807197628,
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8.572844237945445, -11.103384660054624, 117.47585277566478
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);
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vec4 get_sun_spectral_irradiance()
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{
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return sun_spectral_irradiance;
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}
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vec3 linear_srgb_from_spectral_samples(vec4 L)
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{
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return M * L;
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}
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