Examples of ca.eandb.jmist.framework.Light.sample()

ca.eandb.jmist.framework.Light.sample()
Creates the terminal LightNode for path-integral based rendering algorithms. @param pathInfo The PathInfo describing the context inwhich the path is being generated. @param ru The first random variable (must be in [0, 1]). @param rv The second random variable (must be in [0, 1]). @param rj The third random variable (must be in [0, 1]). @return A new LightNode.

    int m1 = ka - 1 - l1;


    if (newLightTail == null && l1 > 0) {
      PathInfo pi = x.getPathInfo();
      Light light = pi.getScene().getLight();
      newLightTail = light.sample(pi, rnd.next(), rnd.next(), rnd.next());
      l1--;
    }
    while (l1-- > 0) {
      newLightTail = newLightTail.expand(rnd.next(), rnd.next(), rnd.next());
      if (newLightTail == null || newLightTail.isAtInfinity()) {

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          for (int i = 0, n = lights.size(); i < n; i++) {
            Light light = lights.get(i);
            if (light != null) {
              if (index-- == 0) {
                return ScaledLightNode.create(1.0 / (double) lightCount,
                    light.sample(pathInfo, ru, rv, ref.seed), rj);


              }
            }
          }
          return null;

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