private void ExportDrawable(TextWriter sw, Drawable drawable)
{
foreach (var model in drawable.Models)
{
ExportModel(sw, model, drawable);
}
}
private void ExportModel(TextWriter sw, Model model, Drawable drawable)
{
foreach (var geometry in model.Geometries)
{
foreach (var mesh in geometry.Meshes)
{
if (_selectedNodes[mesh])
{
Vertex[] vertices = mesh.DecodeVertexData();
ushort[] indices = mesh.DecodeIndexData();
string materialName = "material_" + mesh.MaterialIndex + "_" +
drawable.Materials[mesh.MaterialIndex].ShaderName;
for (int i = 0; i < mesh.FaceCount; i++)
{
Vertex v1 = vertices[indices[i*3 + 0]];
Vertex v2 = vertices[indices[i*3 + 1]];
Vertex v3 = vertices[indices[i*3 + 2]];
sw.WriteLine(materialName);
ExportVertex(sw, mesh, v1);
ExportVertex(sw, mesh, v2);
ExportVertex(sw, mesh, v3);
}
}
}
}
}
internal static ModelNode GenerateModel(Drawable drawable, TextureFile[] textures)
{
var random = new Random();
var materials = new Material[drawable.Materials.Count];
for (int i = 0; i < materials.Length; i++)
{
Brush brush =
new SolidColorBrush(System.Windows.Media.Color.FromArgb(255, (byte)random.Next(0, 255),
(byte)random.Next(0, 255),
(byte)random.Next(0, 255)));
var drawableMat = drawable.Materials[i];
var texture = drawableMat.Parameters[(int)ParamNameHash.Texture] as MaterialParamTexture;
if (texture != null)
{
// 1. Try looking in the embedded texture file (if any)
var textureObj = FindTexture(drawable.AttachedTexture, texture.TextureName);
// 2. Try looking in any attached external texture dictionaries
if (textureObj == null)
{
foreach (var file in textures)
{
textureObj = FindTexture(file, texture.TextureName);
if (textureObj != null)
{
break;
}
}
}
// Generate a brush if we were successful
if (textureObj != null)
{
var bitmap = textureObj.Decode() as Bitmap;
var bitmapSource = Imaging.CreateBitmapSourceFromHBitmap(
bitmap.GetHbitmap(),
IntPtr.Zero,
Int32Rect.Empty,
BitmapSizeOptions.FromEmptyOptions());
// For memory leak work around
bitmapSource.Freeze();
brush = new ImageBrush(bitmapSource);
(brush as ImageBrush).ViewportUnits = BrushMappingMode.Absolute;
(brush as ImageBrush).TileMode = TileMode.Tile;
bitmap.Dispose();
}
}
materials[i] = new DiffuseMaterial(brush);
}
var drawableModelGroup = new Model3DGroup();
var drawableModelNode = new ModelNode {DataModel = drawable, Model3D = drawableModelGroup, Name = "Drawable", NoCount = true};
foreach (var model in drawable.Models)
{
var modelGroup = new Model3DGroup();
var modelNode = new ModelNode {DataModel = model, Model3D = modelGroup, Name = "Model"};
drawableModelNode.Children.Add(modelNode);
foreach (var geometry in model.Geometries)
{
var geometryIndex = 0;
var geometryGroup = new Model3DGroup();
var geometryNode = new ModelNode { DataModel = geometry, Model3D = geometryGroup, Name = "Geometry" };
modelNode.Children.Add(geometryNode);
foreach (var mesh in geometry.Meshes)
{
var mesh3D = new MeshGeometry3D();
var meshNode = new ModelNode { DataModel = mesh, Model3D = null, Name = "Mesh" };
geometryNode.Children.Add(meshNode);
Data.Vertex[] vertices = mesh.DecodeVertexData();
foreach (var vertex in vertices)
{
mesh3D.Positions.Add(new Point3D(vertex.Position.X, vertex.Position.Y, vertex.Position.Z));
if (mesh.VertexHasNormal)
{
mesh3D.Normals.Add(new Vector3D(vertex.Normal.X, vertex.Normal.Y, vertex.Normal.Z));
}
if (mesh.VertexHasTexture)
{
mesh3D.TextureCoordinates.Add(new Point(vertex.TextureCoordinates[0].X, vertex.TextureCoordinates[0].Y));
}
}
ushort[] indices = mesh.DecodeIndexData();
for (int i = 0; i < mesh.FaceCount; i++)
{
mesh3D.TriangleIndices.Add(indices[i * 3 + 0]);
mesh3D.TriangleIndices.Add(indices[i * 3 + 1]);
mesh3D.TriangleIndices.Add(indices[i * 3 + 2]);
}
var material = materials[geometry.Meshes[geometryIndex].MaterialIndex];
var model3D = new GeometryModel3D(mesh3D, material);
geometryGroup.Children.Add(model3D);
meshNode.Model3D = model3D;
geometryIndex++;
}
modelGroup.Children.Add(geometryGroup);
}
drawableModelGroup.Children.Add(modelGroup);
}
return drawableModelNode;
}
