pointbasedocclusion.sl

[index]

10th February 2009   6:51pm 34sec
/stuhome/vsfx419/shader_src/pointbasedocclusion.sl

Pt_OCC

#include "normals.h"
  
 surface 
    pointbasedocclusion (string filename = "";
                            string hitsides = "both";
                         float maxdist = 1e15, falloff = 0, falloffmode = 0,
                         samplebase = 0, bias = 0.01,
                         clampocclusion = 1, maxsolidangle = 0.05,
                         maxvariation = 0) 
    {
      normal Ns = shadingnormal(N);        
      float occ;
  
      occ = occlusion(P, Ns, 0, "pointbased", 1, "filename", filename,
                      "hitsides", hitsides, "maxdist", maxdist,
                      "falloff", falloff, "falloffmode", falloffmode,
                      "samplebase", samplebase, "bias", bias,
                      "clamp", clampocclusion,
                      "maxsolidangle", maxsolidangle,
                      "maxvariation", maxvariation);
  
      Ci = (1 - occ) * Os;
      Oi = Os;
  
}