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3 votes
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light spectrum reflection / absorbation?

When an object is illuminated by the sun, how does the reflected spectrum change? Does each surface has an own reflection spectrum? where each photon "checks" its wavelength and "...
Kevin Reid's user avatar
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1 vote
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Lambertian surface and the luminous intensity

I'm not particularly educated in the formal theory of rendering / optics, so I may have something wrong, but I think I can identify the problem here: why should the luminous intensity be decreasing ...
Kevin Reid's user avatar
  • 1,026
1 vote

How is Aperture and Pixel Size accounted for in calculating received power using ray tracing?

To understand whether your steps are correct you should compare to the mathematical formulation. Step 1 is supposedly solving the rendering equation for some collection of initial rays $$L_o(x_0, \...
lightxbulb's user avatar
  • 2,161

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