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Bumped by Community user
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Guillaume Pelletier
Guillaume Pelletier
  • 121
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I'm studying the color and the Luminosity of Stars. I'm trying to figure how to transform information of Luminosity i perceive at a given distance to something usable into a shader. For instance , Given the Radius and temperature of a star, with inversed square law on Distance(meters) i obtain the perceived luminosity of a star in Watt (brut force, without any scattering). For sample, the luminosity I obtain for the Sun ON Earth is about 1361W and a RGB color about

w=1361    
r=255 g=245 b=242

Astronomical and physics are quite OK, but how to transform this values into usable shader formulas or values? best practices ? samples ?

I guess i will simply take the aboves value as Light reference an normalize the intensity(1361) to be 1 on each rgb componemt value. I' ll keep you posted.

I'm studying the color and the Luminosity of Stars. I'm trying to figure how to transform information of Luminosity i perceive at a given distance to something usable into a shader. For instance , Given the Radius and temperature of a star, with inversed square law on Distance(meters) i obtain the perceived luminosity of a star in Watt (brut force, without any scattering). For sample, the luminosity I obtain for the Sun ON Earth is about 1361W and a RGB color about

w=1361    
r=255 g=245 b=242

Astronomical and physics are quite OK, but how to transform this values into usable shader formulas or values? best practices ? samples ?

I'm studying the color and the Luminosity of Stars. I'm trying to figure how to transform information of Luminosity i perceive at a given distance to something usable into a shader. For instance , Given the Radius and temperature of a star, with inversed square law on Distance(meters) i obtain the perceived luminosity of a star in Watt (brut force, without any scattering). For sample, the luminosity I obtain for the Sun ON Earth is about 1361W and a RGB color about

w=1361    
r=255 g=245 b=242

Astronomical and physics are quite OK, but how to transform this values into usable shader formulas or values? best practices ? samples ?

I guess i will simply take the aboves value as Light reference an normalize the intensity(1361) to be 1 on each rgb componemt value. I' ll keep you posted.

Source Link
Guillaume Pelletier
Guillaume Pelletier
  • 121
  • 3

Transform luminosity (Watt) to be usable in shader

I'm studying the color and the Luminosity of Stars. I'm trying to figure how to transform information of Luminosity i perceive at a given distance to something usable into a shader. For instance , Given the Radius and temperature of a star, with inversed square law on Distance(meters) i obtain the perceived luminosity of a star in Watt (brut force, without any scattering). For sample, the luminosity I obtain for the Sun ON Earth is about 1361W and a RGB color about

w=1361    
r=255 g=245 b=242

Astronomical and physics are quite OK, but how to transform this values into usable shader formulas or values? best practices ? samples ?