Inside Realsoft Shading the interpolation formula is (1-p1)*p2+p1*p3 This require 4 operations
Why not use? (p3-p2)*p1+p2 This require 3 operations p1 is the %I do use the same formula as RS in CombadZ, but i don't understand when the second formula does not work?
Jean-Sebastien Perron www.CombadZ.com