Пример #1
0
 @Override
 public Float64Vector getNormal(Coordinate point) {
   if (!point.zoomOut(Coordinate.OFFSET_BLOCK_CHUNK).equals(location)) {
     throw new IllegalArgumentException();
   }
   point = point.subCoordinate(Coordinate.OFFSET_BLOCK_CHUNK);
   return normals[point.getX()][point.getY()];
 }
Пример #2
0
 private Float64Vector[][] fromNormalMap(NormalMap source) {
   Float64Vector[][] normals = new Float64Vector[16][16];
   Coordinate chunkOrigin = location.zoomIn(Coordinate.OFFSET_BLOCK_CHUNK);
   for (int x = 0; x < 16; x++) {
     for (int y = 0; y < 16; y++) {
       normals[x][y] =
           source.getNormal(chunkOrigin.plus(new Coordinate(x, y, Coordinate.LEVEL_BLOCK)));
     }
   }
   return normals;
 }
 private static double computeDiffuseShading(
     ChunkSnapshot chunkSnapshot, int x, int z, NormalMap nm) {
   Float64Vector n =
       nm.getNormal(
           Coordinate.fromSnapshot(chunkSnapshot)
               .zoomIn(Coordinate.OFFSET_BLOCK_CHUNK)
               .plus(new Coordinate(x, z, Coordinate.LEVEL_BLOCK)));
   Float64Vector light = Float64Vector.valueOf(-1, -1, -1);
   if (n == null) {
     return -1;
   }
   double shading = n.times(light).divide((n.norm().times(light.norm()))).doubleValue();
   return ((shading + 1) * 0.4) + 0.15;
 }
  @Override
  public void render(ChunkSnapshot chunkSnapshot) {
    BufferedImage image = ImageProvider.createImage(Coordinate.SIZE_CHUNK);
    Graphics2D g = (Graphics2D) image.getGraphics();
    for (int x = 0; x < 16; x++) {
      for (int z = 0; z < 16; z++) {
        // TODO: Handle cases where we can start at an opaque non-terrain block
        for (int y = TerrainHelper.getTerrainHeight(x, z, chunkSnapshot);
            y <= chunkSnapshot.getHighestBlockYAt(x, z);
            y++) {
          Material material = Material.getMaterial(chunkSnapshot.getBlockTypeId(x, y, z));
          Color color = getMaterialColor(material, chunkSnapshot, x, y, z);

          if (TerrainHelper.isTerrain(material)) {
            double shading = computeDiffuseShading(chunkSnapshot, x, z, this.normalMap);
            if (shading >= 0) {
              color = tintOrShadeColor(color, shading, 1.0);
            }
          } else if (TerrainHelper.isStructure(material)) {
            double shading = computeDiffuseShading(chunkSnapshot, x, z, this.structureMap);
            if (shading >= 0) {
              if (material.equals(Material.LEAVES)) {
                color = tintOrShadeColor(color, shading, 0.3);
              } else {
                color = tintOrShadeColor(color, shading, 1.0);
              }
            }
          }

          g.setColor(color);
          g.fillRect(x, z, 1, 1);
        }
      }
    }
    imageProvider.setImage(Coordinate.fromSnapshot(chunkSnapshot), image);
  }