Package ca.eandb.jmist.math

Examples of ca.eandb.jmist.math.Ray3

72
73
74
75
76
77
78
  /* (non-Javadoc)
   * @see ca.eandb.jmist.framework.LightSample#castShadowRay(ca.eandb.jmist.framework.VisibilityFunction3)
   */
  public boolean castShadowRay(VisibilityFunction3 vf) {
    return shadows && !vf.visibility(new Ray3(x.getPosition(), position));
  }
View Full Code Here
153
154
155
156
157
158
159
160
161
162
163
      }
    }

    public Color castRay(ScatteredRay sr) {
      ScatteredRay.Type type = sr.getType();
      Ray3 ray = sr.getRay();
      Intersection x = NearestIntersectionRecorder.computeNearestIntersection(ray, root);

      if (x != null) {
        totalDepth++;
        depth.put(type, getPathDepthByType(type) + 1);
View Full Code Here
116
117
118
119
120
121
122
123
124
      return true;
    }

    public ScatteredRay sample(double ru, double rv, double rj) {
      Vector3 v = RandomUtil.uniformOnSphere(ru, rv).toCartesian();
      Ray3 ray = new Ray3(position, v);
      return ScatteredRay.diffuse(ray, sample(emittedPower),
          1.0 / (4.0 * Math.PI));
    }
View Full Code Here
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
    if (RandomUtil.bernoulli(r, rj)) {
      Vector3    out    = Optics.reflect(v, normal);
      boolean    toSide  = x.getNormal().dot(out) >= 0.0;

      if (fromSide == toSide) {
        return ScatteredRay.specular(new Ray3(p, out), R.divide(r), r);
      }
    } else {

    if (false && disperse) {
//      for (int i = 0, channels = cm.getNumChannels(); i < channels; i++) {
//        Complex    eta1  = new Complex(n1.getValue(i), k1.getValue(i));
//        Complex    eta2  = new Complex(n2.getValue(i));
//        Vector3    out    = Optics.refract(v, eta1, eta2, normal);
//        boolean    toSide  = x.getNormal().dot(out) >= 0.0;
//
//        if (fromSide != toSide) {
//          recorder.add(ScatteredRay.transmitSpecular(new Ray3(p, out), T.disperse(i), 1.0));
//        }
//      }
    } else { // !disperse
      double    n1avg  = ColorUtil.getMeanChannelValue(n1);
      double    k1avg  = ColorUtil.getMeanChannelValue(k1);
      double    n2avg  = ColorUtil.getMeanChannelValue(n2);
      Complex    eta1  = new Complex(n1avg, k1avg);
      Complex    eta2  = new Complex(n2avg);
      Vector3    out    = Optics.refract(v, eta1, eta2, normal);
      boolean    toSide  = x.getNormal().dot(out) >= 0.0;

      if (fromSide != toSide) {
        return ScatteredRay.transmitSpecular(new Ray3(p, out), T.divide(1 - r), 1 - r);
      }
    }
    }

    return null;
View Full Code Here
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
        ScatteredRay sr = strategy.emit(x, lambda, ru, rv, ref.seed);
        if (sr != null) {
          if (sr.getType() == Type.SPECULAR) {
            return ScatteredRay.select(sr, w);
          } else {
            Ray3 ray = sr.getRay();
            Vector3 v = ray.direction();
            double pdf = w * sr.getPDF() + (1.0 - w) * inner.getEmissionPDF(x, v, lambda);
            Color edf = inner.emission(x, sr.getRay().direction(), lambda);
            return new ScatteredRay(ray, edf.divide(pdf), sr.getType(), pdf, sr.isTransmitted());
          }
        }
      } else {
        ScatteredRay sr = inner.emit(x, lambda, ru, rv, ref.seed);
        if (sr != null) {
          if (sr.getType() == Type.SPECULAR) {
            return ScatteredRay.select(sr, 1.0 - w);
          } else {
            Ray3 ray = sr.getRay();
            Vector3 v = ray.direction();
            double pdf = w * strategy.getEmissionPDF(x, v, lambda) + (1.0 - w) * sr.getPDF();
            Color edf = inner.emission(x, sr.getRay().direction(), lambda);
            return new ScatteredRay(ray, edf.divide(pdf), sr.getType(), pdf, sr.isTransmitted());
          }
        }
View Full Code Here
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
      ScatteredRay sr = strategy.scatter(x, v, adjoint, lambda, ru, rv, ref.seed);
      if (sr != null) {
        if (sr.getType() == Type.SPECULAR) {
          return ScatteredRay.select(sr, w);
        } else {
          Ray3 ray = sr.getRay();
          Vector3 r = ray.direction();
          Vector3 in = adjoint ? r.opposite() : v;
          Vector3 out = adjoint ? v.opposite() : r;
          double pdf = w * sr.getPDF() + (1.0 - w) * inner.getScatteringPDF(x, v, r, adjoint, lambda);
          Color bsdf = inner.bsdf(x, in, out, lambda);
          return new ScatteredRay(ray, bsdf.divide(pdf), sr.getType(), pdf, sr.isTransmitted());
        }
      }
    } else {
      ScatteredRay sr = inner.scatter(x, v, adjoint, lambda, ru, rv, ref.seed);
      if (sr != null) {
        if (sr.getType() == Type.SPECULAR) {
          return ScatteredRay.select(sr, 1.0 - w);
        } else {
          Ray3 ray = sr.getRay();
          Vector3 r = ray.direction();
          Vector3 in = adjoint ? r.opposite() : v;
          Vector3 out = adjoint ? v.opposite() : r;
          double pdf = w * strategy.getScatteringPDF(x, v, r, adjoint, lambda) + (1.0 - w) * sr.getPDF();
          Color bsdf = inner.bsdf(x, in, out, lambda);
          return new ScatteredRay(ray, bsdf.divide(pdf), sr.getType(), pdf, sr.isTransmitted());
View Full Code Here
68
69
70
71
72
73
74
75
76
  @Override
  public ScatteredRay scatter(SurfacePoint x, Vector3 v, boolean adjoint, WavelengthPacket lambda, double ru, double rv, double rj) {

    Vector3 out = Optics.reflect(v, x.getShadingNormal());

    return ScatteredRay.specular(new Ray3(x.getPosition(), out),
        reflectance.getColor(x, lambda), 1.0);

  }
View Full Code Here
120
121
122
123
124
125
126
127
128
129
      Vector3 v = new Vector3(
          Math.sin(theta),
          (0.5 - p.y()) * height,
          -Math.cos(theta));
      double r = v.length();
      Ray3 ray = new Ray3(Point3.ORIGIN, v.divide(r));
      Color color = getWhite();
      double pdf = (r * r * r * r) / (hfov * height);
      return ScatteredRay.diffuse(ray, color, pdf);
    }
View Full Code Here
137
138
139
140
141
142
143
144
145
146
147
148
    /* (non-Javadoc)
     * @see ca.eandb.jmist.framework.path.EyeNode#project(ca.eandb.jmist.math.HPoint3)
     */
    public Point2 project(HPoint3 x) {
      Ray3 ray = new Ray3(Point3.ORIGIN, x);
      Vector3 v = ray.direction();
      double theta = Math.atan2(v.x(), -v.z());
      if (Math.abs(theta) > 0.5 * hfov) {
        return null;
      }
      double h = v.y() / Math.hypot(v.x(), v.z());
View Full Code Here
144
145
146
147
148
149
150
151
152
153
154
      double  d2 = nx * nx + ny * ny;

      if (d2 > 1.0)
        return null;

      Ray3 ray = new Ray3(
          Point3.ORIGIN,
          new Vector3(nx, ny,  -Math.sqrt(1.0 - d2)));
      Color color = getWhite();
      double pdf = 0.25;

View Full Code Here
TOP

Related Classes of ca.eandb.jmist.math.Ray3

  • ca.eandb.jmist.framework.accel.BoundingIntervalHierarchy
  • ca.eandb.jmist.framework.geometry.AbstractGeometry
  • ca.eandb.jmist.framework.geometry.MeshBuilder
  • ca.eandb.jmist.framework.lens.FisheyeLens$Node
  • ca.eandb.jmist.framework.lens.LambertCylindricalLens$Node
  • ca.eandb.jmist.framework.lens.OmnimaxLens$Node
  • ca.eandb.jmist.framework.lens.OrthographicLens$Node
  • ca.eandb.jmist.framework.lens.PanoramicLens$Node
  • ca.eandb.jmist.framework.lens.PinholeLens$Node
  • ca.eandb.jmist.framework.lens.PolyhedronLens$Node
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.