public static BoundingBox CalcBoundingBox(ElevationGrid elevationGrid)
{
BoundingBox bbox;
int xDim, zDim;
xDim = elevationGrid._xDimension - 1;
zDim = elevationGrid._zDimension - 1;
bbox = new BoundingBox();
bbox.Width = xDim * elevationGrid._xSpacing;
bbox.Height = elevationGrid.MaxHeight - elevationGrid.MinHeight;
bbox.Depth = zDim * elevationGrid._zSpacing;
return(bbox);
}
public override void CollectGeometry(
RenderingContext rc,
out GeometryHandle handle,
out BoundingBox bbox,
out bool Coloring,
out bool Texturing)
{
List <Vertex> geometry;
handle = GeometryHandle.Zero;
bbox = BoundingBox.Zero;
parentShape = GetParent <Shape>();
colorNode = (Color)this.Children.FirstOrDefault(n => n.GetType() == typeof(Color));
colorRGBANode = (ColorRGBA)this.Children.FirstOrDefault(n => n.GetType() == typeof(ColorRGBA));
texCoordinateNode = (TextureCoordinate)this.Children.FirstOrDefault(n => n.GetType() == typeof(TextureCoordinate));
RGBA = colorRGBANode != null;
RGB = colorNode != null;
coloring = RGBA || RGB;
generateColorMap = coloring;
texturing = texCoordinateNode != null || parentShape.texturingEnabled;
generateTexCoordMap = texturing;
Coloring = coloring;
Texturing = texturing;
if (RGB && !RGBA)
{
color = X3DTypeConverters.Floats(colorNode.color);
}
else if (RGBA && !RGB)
{
color = X3DTypeConverters.Floats(colorRGBANode.color);
}
_isLoaded = true;
////
////
////
if (construct)
{
float sx = this.xSpacing;
float sz = this.zSpacing;
IConstructionSet constructionSet;
IPerlinNoiseGenerator perlinProvider;
Bitmap largePerlinImage;
constructionSet = SceneManager.GetCurrentConstructionSet();
perlinProvider = constructionSet.GetPerlinNoiseProvider();
ElevationGrid generated = constructionSet.ElevationBuilder.BuildHeightmapFromGenerator(
rc,
perlinProvider,
out largePerlinImage, 40, 40, 20, 20, 20); // build a rather large height map
largePerlinImage.Dispose();
Color genColorNode = (Color)generated.Children.FirstOrDefault(n => n.GetType() == typeof(Color));
this.RGB = coloring = generateColorMap = true;
this.height = generated.height;
this.color = X3DTypeConverters.Floats(genColorNode.color);
this.colorPerVertex = generated.colorPerVertex;
this.normalPerVertex = generated.normalPerVertex;
this.Children = generated.Children;
this.xSpacing = generated.xSpacing;
this.zSpacing = generated.zSpacing;
this.xDimension = generated.xDimension;
this.zDimension = generated.zDimension;
}
if (!this._isLoaded)
{
parentShape = GetParent <Shape>();
texturing = parentShape.texturingEnabled;
generateTexCoordMap = texturing && texCoordinateNode == null;
this._isLoaded = true;
}
height_mapping();
bbox = BoundingBox.CalcBoundingBox(this);
geometry = BuildElevationGeometryQuads(bbox);
Buffering.BufferShaderGeometry(geometry, out handle.vbo4, out handle.NumVerticies4);
}