Exemplo n.º 1
0
  @Override
  public void setupRendererLights(RendererLights zlights, boolean isGammaInput) {
    Float32Array hemiSkyColors = zlights.hemi.skyColors;
    Float32Array hemiGroundColors = zlights.hemi.groundColors;
    Float32Array hemiPositions = zlights.hemi.positions;

    Color skyColor = getColor();
    Color groundColor = getGroundColor();
    double intensity = getIntensity();

    int hemiOffset = hemiSkyColors.getLength() * 3;

    if (isGammaInput) {
      setColorGamma(hemiSkyColors, hemiOffset, skyColor, intensity);
      setColorGamma(hemiGroundColors, hemiOffset, groundColor, intensity);
    } else {
      setColorLinear(hemiSkyColors, hemiOffset, skyColor, intensity);
      setColorLinear(hemiGroundColors, hemiOffset, groundColor, intensity);
    }

    Vector3 _direction = new Vector3();

    _direction.setFromMatrixPosition(getMatrixWorld());
    _direction.normalize();

    hemiPositions.set(hemiOffset, _direction.getX());
    hemiPositions.set(hemiOffset + 1, _direction.getY());
    hemiPositions.set(hemiOffset + 2, _direction.getZ());
  }
Exemplo n.º 2
0
  public CylinderGeometry(
      double radiusTop,
      double radiusBottom,
      double height,
      int radialSegments,
      int heightSegments,
      boolean openEnded,
      double thetaStart,
      double thetaLength) {
    super();

    double heightHalf = height / 2.0;
    //		int segmentsX = radialSegments;
    //		int segmentsY = heightSegments;

    int x = 0, y = 0;

    List<List<Integer>> vertices = new ArrayList<List<Integer>>();
    List<List<Vector2>> uvs = new ArrayList<List<Vector2>>();

    for (y = 0; y <= heightSegments; y++) {
      List<Integer> verticesRow = new ArrayList<Integer>();
      List<Vector2> uvsRow = new ArrayList<Vector2>();

      double v = (double) y / (double) heightSegments;
      double radius = v * (radiusBottom - radiusTop) + radiusTop;

      for (x = 0; x <= radialSegments; x++) {
        double u = (double) x / (double) radialSegments;

        Vector3 vertex = new Vector3();

        vertex.setX(radius * Math.sin(u * thetaLength + thetaStart));
        vertex.setY(-v * height + heightHalf);
        vertex.setZ(radius * Math.cos(u * thetaLength + thetaStart));

        getVertices().add(vertex);

        verticesRow.add(getVertices().size() - 1);
        uvsRow.add(new Vector2(u, 1 - v));
      }

      vertices.add(verticesRow);
      uvs.add(uvsRow);
    }

    double tanTheta = (radiusBottom - radiusTop) / height;
    Vector3 na, nb;

    for (x = 0; x < radialSegments; x++) {
      if (radiusTop != 0) {
        na = getVertices().get(vertices.get(0).get(x)).clone();
        nb = getVertices().get(vertices.get(0).get(x + 1)).clone();
      } else {
        na = getVertices().get(vertices.get(1).get(x)).clone();
        nb = getVertices().get(vertices.get(1).get(x + 1)).clone();
      }

      na.setY(Math.sqrt(na.getX() * na.getX() + na.getZ() * na.getZ()) * tanTheta);
      na.normalize();
      nb.setY(Math.sqrt(nb.getX() * nb.getX() + nb.getZ() * nb.getZ()) * tanTheta);
      nb.normalize();

      for (y = 0; y < heightSegments; y++) {
        int v1 = vertices.get(y).get(x);
        int v2 = vertices.get(y + 1).get(x);
        int v3 = vertices.get(y + 1).get(x + 1);
        int v4 = vertices.get(y).get(x + 1);

        Vector3 n1 = na.clone();
        Vector3 n2 = na.clone();
        Vector3 n3 = nb.clone();
        Vector3 n4 = nb.clone();

        Vector2 uv1 = uvs.get(y).get(x).clone();
        Vector2 uv2 = uvs.get(y + 1).get(x).clone();
        Vector2 uv3 = uvs.get(y + 1).get(x + 1).clone();
        Vector2 uv4 = uvs.get(y).get(x + 1).clone();

        this.getFaces().add(new Face3(v1, v2, v4, Arrays.asList(n1, n2, n4)));
        this.getFaceVertexUvs().get(0).add(Arrays.asList(uv1, uv2, uv4));

        this.getFaces().add(new Face3(v2, v3, v4, Arrays.asList(n2.clone(), n3, n4.clone())));
        this.getFaceVertexUvs().get(0).add(Arrays.asList(uv2.clone(), uv3, uv4.clone()));
      }
    }

    // top cap

    if (!openEnded && radiusTop > 0) {
      getVertices().add(new Vector3(0.0, heightHalf, 0.0));

      for (x = 0; x < radialSegments; x++) {
        int v1 = vertices.get(0).get(x);
        int v2 = vertices.get(0).get(x + 1);
        int v3 = getVertices().size() - 1;

        Vector3 n1 = new Vector3(0, 1, 0);
        Vector3 n2 = new Vector3(0, 1, 0);
        Vector3 n3 = new Vector3(0, 1, 0);

        Vector2 uv1 = uvs.get(0).get(x).clone();
        Vector2 uv2 = uvs.get(0).get(x + 1).clone();
        Vector2 uv3 = new Vector2(uv2.getX(), 0);

        getFaces().add(new Face3(v1, v2, v3, Arrays.asList(n1, n2, n3)));
        getFaceVertexUvs().get(0).add(Arrays.asList(uv1, uv2, uv3));
      }
    }

    // bottom cap

    if (!openEnded && radiusBottom > 0) {
      getVertices().add(new Vector3(0, -heightHalf, 0));

      for (x = 0; x < radialSegments; x++) {
        int v1 = vertices.get(y).get(x + 1);
        int v2 = vertices.get(y).get(x);
        int v3 = getVertices().size() - 1;

        Vector3 n1 = new Vector3(0.0, -1.0, 0.0);
        Vector3 n2 = new Vector3(0.0, -1.0, 0.0);
        Vector3 n3 = new Vector3(0.0, -1.0, 0.0);

        Vector2 uv1 = uvs.get(y).get(x + 1).clone();
        Vector2 uv2 = uvs.get(y).get(x).clone();
        Vector2 uv3 = new Vector2(uv2.getX(), 1);

        getFaces().add(new Face3(v1, v2, v3, Arrays.asList(n1, n2, n3)));
        getFaceVertexUvs().get(0).add(Arrays.asList(uv1, uv2, uv3));
      }
    }

    computeFaceNormals();
  }