Search found 2 matches

by junketsu
Wed Jun 17, 2015 11:09 am
Forum: General Development
Topic: Colorspaces questions, and light shape questions
Replies: 1
Views: 3928

Re: Colorspaces questions, and light shape questions

Hi. Have you read Colour Rendering of Spectra [1]? The problem of different colorspaces is solved by using corresponding matrices for XYZ->RGB transform, but I think the CIE Rec 709 matrix is enough, especially if sRGB is a primary colorspace of your renderer output. Furthermore it will be problemat...
by junketsu
Thu Jun 26, 2014 1:15 pm
Forum: General Development
Topic: When do Fresnel Equations Apply/Fresnel BRDFs
Replies: 8
Views: 5611

Re: When do Fresnel Equations Apply/Fresnel BRDFs

To get nearly proper fresnel reflection of glossy surface is enough to multiply it by masking term of the Smith`s Geometry Attenuation Factor (G). An application of G is described in the original paper of Cook and Torrance and more particularly in Walter`s "Microfacet models for refraction through r...