Search found 6 matches

by phresnel
Mon Nov 18, 2013 6:59 am
Forum: General Development
Topic: Working Color Spaces
Replies: 11
Views: 9504

Re: Working Color Spaces

They use XYZ to add up their sampled spectra per pixel, i.e. when R is their radiance sampled on a primary ray upon a pixel, they convert R to XYZ to build an average R/n for that pixel. The nice thing about XYZ is that it has a built-in luminance measurement. In PBRT 1 they used the luminance info...
by phresnel
Sat Nov 16, 2013 10:09 pm
Forum: General Development
Topic: Working Color Spaces
Replies: 11
Views: 9504

Re: Working Color Spaces

Adding XYZ colors and Spectral colors (of same topology) satisfy that. But which other color spaces exist that do that? Which RGB color space do that? Is sRGB a linear and additive? sRGB is not linear. It is very close to linear RGB with a 2.2 gamma correction. Okay, cool. Now, what would be needed...
by phresnel
Sat Nov 16, 2013 2:00 pm
Forum: General Development
Topic: Working Color Spaces
Replies: 11
Views: 9504

Working Color Spaces

Hello folks, I am currently trying to clean up my confusion about color spaces. We are all used to linear and additive RGB colors, and many of us are aware of the gamma correction you need to account for the non-linearity of commoditity display devices. I searched a lot on the internet to find out w...
by phresnel
Wed Aug 14, 2013 3:02 pm
Forum: General Development
Topic: Csillámtrace - my new graphics engine
Replies: 153
Views: 92511

Re: Csillámtrace - my new graphics engine

mpeterson wrote:shit, i like this thread...


I logged in just to sign your post. Keep up the telling and the coding, Geri.
by phresnel
Tue Apr 09, 2013 11:20 am
Forum: Scratchpad
Topic: tbp
Replies: 5
Views: 8195

Re: tbp

spectral wrote:What was his real name " Thierry Berger-Perrin" ?

Was he working for NVidia ?

His email was : tbptbp@gmail.com

I hope he has no health problem !!!


Nvidia? Do you know something?
by phresnel
Sat Jan 07, 2012 9:17 pm
Forum: ompf2
Topic: Welcome!
Replies: 32
Views: 33495

Re: Welcome!

I would have proposed rt-dev.org, but it's taken already ...

I would definitely go for an org-tld. Org is somehow right.

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