public static MAXChunkHeader Peep(BinaryReader stream)
{
// Read a header.
MAXChunkHeader header = new MAXChunkHeader();
header.Read(stream);
// Go back.
stream.BaseStream.Seek(-6, System.IO.SeekOrigin.Current);
// Return the header.
return(header);
}
protected override object LoadData(Stream stream)
{
// We use a binary reader.
BinaryReader reader = new BinaryReader(stream, System.Text.Encoding.ASCII);
// Create a new scene to load to.
Scene scene = new Scene();
// Peep the first chunk to make sure it's a 'main' chunk.
if (MAXChunkHeader.Peep(reader).type != ChunkType.CHUNK_MAIN)
{
return(false);
}
// The first chunk is always the main chunk, so read it.
MainChunk main = new MainChunk();
main.Read(scene, reader);
return(scene);
}
public override void ReadData(Scene scene, BinaryReader stream)
{
do
{
// Peep at the next chunk.
MAXChunkHeader next = MAXChunkHeader.Peep(stream);
// If it's an Trimesh Block, we can read that.
if (next.type == ChunkType.CHUNK_TRIMESH)
{
TriangleMeshChunk chunk = new TriangleMeshChunk();
chunk.Read(scene, stream);
}
else
{
// We don't know what this chunk is, so just read the generic one.
MAXChunk chunk = new MAXChunk();
chunk.Read(scene, stream);
}
} while (MoreChunks(stream));
}
public static MAXChunkHeader Peep(BinaryReader stream)
{
// Read a header.
MAXChunkHeader header = new MAXChunkHeader();
header.Read(stream);
// Go back.
stream.BaseStream.Seek(-6, System.IO.SeekOrigin.Current);
// Return the header.
return header;
}
public override void ReadData(Scene scene, BinaryReader stream)
{
// A triangle mesh is basicly a Polygon, so create it.
Polygon poly = new Polygon();
Matrix matrix = new Matrix();
do
{
// Peep at the next chunk.
MAXChunkHeader next = MAXChunkHeader.Peep(stream);
if (next.type == ChunkType.CHUNK_VERTLIST)
{
// Read the vertices.
VertexListChunk chunk = new VertexListChunk();
chunk.Read(scene, stream);
// Set them into the polygon.
poly.Vertices = chunk.vertices;
}
else if (next.type == ChunkType.CHUNK_FACELIST)
{
// Read the faces.
FaceListChunk chunk = new FaceListChunk();
chunk.Read(scene, stream);
// Set them into the polygon.
poly.Faces = chunk.faces;
}
else if (next.type == ChunkType.CHUNK_MAPLIST)
{
// Read the uvs.
MapListChunk chunk = new MapListChunk();
chunk.Read(scene, stream);
// Set them into the polygon.
poly.UVs = chunk.uvs;
}
else if (next.type == ChunkType.CHUNK_TRMATRIX)
{
// Here we just read the matrix (we'll use it later).
TrMatrixChunk chunk = new TrMatrixChunk();
chunk.Read(scene, stream);
matrix = chunk.matrix;
}
else
{
// We don't know what this chunk is, so just read the generic one.
MAXChunk chunk = new MAXChunk();
chunk.Read(scene, stream);
}
} while (MoreChunks(stream));
// Now we multiply each vertex by the matrix.
for (int i = 0; i < poly.Vertices.Count; i++)
{
poly.Vertices[i] *= matrix;
}
// Add the poly to the scene.
scene.Polygons.Add(poly);
}
