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Questions tagged [spectral]

The tag has no usage guidance.

2
votes
1answer
71 views

Computing sRGB color from SPDs

I'm trying to write my own spectral path tracer and a bit stuck with converting computed SPDs to LDR RGB values. What I'm doing right now is convert sampled SPDs (in ...
4
votes
1answer
93 views

Generating and Combining Spectral Colors

I have two somewhat related questions to ask: What is the most accurate way to get the colors of a spectrum, without having to go deep into physics and simulating the universe? ;) Right now, I'm ...
2
votes
0answers
95 views

Does a constant reflection over the light spectrum lead to grayscale value?

I'm currently fighting with the spectrum->RGB color conversions, my algorithm seems to make an error somewhere, e.g. I get values >1 for some spectral responses. Now there is a way to calculate an ...
3
votes
1answer
155 views

How is Iridescence handled in a Path Tracer?

I have little knowledge of this topic but from what I gather in a Ray Tracer each ray is given its own wavelength as opposed to an RGB value. This automatically simulates Dispersion and Fluorescence. ...