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View of /trunk/rtest/tests/convo3d0/convo3d0.diderot

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Revision 1188 - (download) (annotate)
Wed May 11 17:50:07 2011 UTC (9 years, 2 months ago) by glk
File size: 558 byte(s)
basic test of 3D convolution

int outSize = 50;

field#0(3)[] F = tent ⊛ load("../../data/ring.nrrd");

strand sample (int ui, int vi, int wi) {
   real uu = lerp(-1.0, 1.0, -0.5, real(ui), real(outSize)-0.5);
   real vv = lerp(-1.0, 1.0, -0.5, real(vi), real(outSize)-0.5);
   real ww = lerp(-1.0, 1.0, -0.5, real(wi), real(outSize)-0.5);
   vec3 pos = [uu, vv, ww];
   output real val = -0.6; 

   update {
      val = F(pos) if (inside(pos,F)) else -0.6;
      stabilize;
   }
}

initially [ sample(ui, vi, wi) | wi in 0..(outSize-1), vi in 0..(outSize-1), ui in 0..(outSize-1) ];

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