Package ca.eandb.jmist.framework

Examples of ca.eandb.jmist.framework.Medium

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    double    EdotN = E.dot(N);
    double    LdotN = L.dot(N);
    double    tanAlpha = Math.tan(Math.acos(HdotN));
    double    cos4Alpha = HdotN * HdotN * HdotN * HdotN;

    Medium    medium = x.getAmbientMedium();
    Color    n1 = medium.refractiveIndex(x.getPosition(), lambda);
    Color    k1 = medium.extinctionIndex(x.getPosition(), lambda);
    Color    n2 = n.sample(lambda);
    Color    k2 = k.sample(lambda);
    Color    F = MaterialUtil.reflectance(E, n1, k1, n2, k2, N);
    double    D = Math.exp(-(tanAlpha * tanAlpha / mSquared)) / (Math.PI * mSquared * cos4Alpha);
    double    G = Math.min(1.0, Math.min(2.0 * HdotN * EdotN / EdotH, 2.0 * HdotN * LdotN / EdotH));
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  @Override
  public ScatteredRay scatter(SurfacePoint x, Vector3 v, boolean adjoint, WavelengthPacket lambda, double ru, double rv, double rj) {

    ColorModel  cm      = lambda.getColorModel();
    Point3    p      = x.getPosition();
    Medium    medium    = x.getAmbientMedium();
    Color    n1      = medium.refractiveIndex(p, lambda);
    Color    k1      = medium.extinctionIndex(p, lambda);
    Color    n2      = n.sample(lambda);
    Color    k2      = k.sample(lambda);
    Vector3    normal    = x.getShadingNormal();
    boolean    fromSide  = x.getNormal().dot(v) < 0.0;
    Color    R      = MaterialUtil.reflectance(v, n1, k1, n2, k2, normal);
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      if (x != null) {
        totalDepth++;
        depth.put(type, getPathDepthByType(type) + 1);

        boolean pop = false;
        Medium popped = null;
        if (sr.isTransmitted()) {
          if (isFront()) {
            media.push(getMaterial());
            pop = true;
          } else if (!media.isEmpty()) {
            popped = media.pop();
          }
        }

        Medium ambientMedium;
        Medium medium = media.isEmpty() ? Medium.VACUUM : media.peek();
        if (x.isFront()) {
          ambientMedium = medium;
        } else {
          ambientMedium = media.size() > 1 ? media.elementAt(media.size() - 2) : Medium.VACUUM;
        }

        LocalContext local = new LocalContext();
        local.ray = ray;
        local.distance = x.getDistance();
        local.front = x.isFront();
        local.medium = ambientMedium;
        local.importance = sr.getColor().times(stack.peek().importance);

        stack.push(local);
        x.prepareShadingContext(this);

        Color color = shade();
        color = color.times(medium.transmittance(local.ray,
            local.distance, color.getWavelengthPacket()));

        if (popped != null) {
          media.push(popped);
        }
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  @Override
  public ScatteredRay scatter(SurfacePoint x, Vector3 v, boolean adjoint, WavelengthPacket lambda, double ru, double rv, double rj) {

    ColorModel  cm      = lambda.getColorModel();
    Point3    p      = x.getPosition();
    Medium    medium    = x.getAmbientMedium();
    Color    n1      = medium.refractiveIndex(p, lambda);
    Color    k1      = medium.extinctionIndex(p, lambda);
    Color    n2      = refractiveIndex.sample(lambda);
    Vector3    normal    = x.getShadingNormal();
    boolean    fromSide  = x.getNormal().dot(v) < 0.0;
    Color    R      = MaterialUtil.reflectance(v, n1, k1, n2, null, normal);
    Color    T      = cm.getWhite(lambda).minus(R);
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Related Classes of ca.eandb.jmist.framework.Medium

  • ca.eandb.jmist.framework.material.ConductiveMaterial
  • ca.eandb.jmist.framework.material.CookTorranceMaterial
  • ca.eandb.jmist.framework.material.DielectricMaterial
  • ca.eandb.jmist.framework.shader.ray.SceneRayShader$Context
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