public Mesh (MemoryBlock vertices, VertexLayout decl, ushort[] indices) {
var group = new MeshGroup();
group.VertexBuffer = new VertexBuffer(vertices, decl);
group.IndexBuffer = new IndexBuffer(MemoryBlock.FromArray(indices));
vertexDecl = decl;
groups = new List<MeshGroup> { group };
}
public unsafe static Mesh LoadMesh(string fileName)
{
var path = Path.Combine(RootPath, "meshes/", fileName);
var groups = new List <MeshGroup>();
var group = new MeshGroup();
VertexLayout layout = null;
using (var reader = new MemoryReader(File.ReadAllBytes(path))) {
while (!reader.Done)
{
var tag = reader.Read <uint>();
if (tag == ChunkTagVB)
{
// skip bounding volume info
reader.Skip(BoundingVolumeSize);
layout = ReadVertexLayout(reader);
var vertexCount = reader.Read <ushort>();
var vertexData = reader.ReadArray <byte>(vertexCount * layout.Stride);
group.VertexBuffer = new VertexBuffer(MemoryBlock.FromArray(vertexData), layout);
}
else if (tag == ChunkTagIB)
{
var indexCount = reader.Read <uint>();
var indexData = reader.ReadArray <ushort>((int)indexCount);
group.IndexBuffer = new IndexBuffer(MemoryBlock.FromArray(indexData));
}
else if (tag == ChunkTagPri)
{
// skip material name
var len = reader.Read <ushort>();
reader.Skip(len);
// read primitive data
var count = reader.Read <ushort>();
for (int i = 0; i < count; i++)
{
// skip name
len = reader.Read <ushort>();
reader.Skip(len);
var prim = reader.Read <Primitive>();
group.Primitives.Add(prim);
// skip bounding volumes
reader.Skip(BoundingVolumeSize);
}
groups.Add(group);
group = new MeshGroup();
}
}
}
return(new Mesh(layout, groups));
}
public Mesh(MemoryBlock vertices, VertexLayout decl, ushort[] indices)
{
var group = new MeshGroup();
group.VertexBuffer = new VertexBuffer(vertices, decl);
group.IndexBuffer = new IndexBuffer(MemoryBlock.FromArray(indices));
vertexDecl = decl;
groups = new List <MeshGroup> {
group
};
}
public static Mesh LoadMesh(string fileName)
{
var path = Path.Combine(RootPath, "meshes/", fileName);
var groups = new List <MeshGroup>();
var group = new MeshGroup();
VertexLayout layout = null;
using (var file = MemoryMappedFile.CreateFromFile(path)) {
var reader = file.CreateViewAccessor();
var bytes = new FileInfo(path).Length;
var index = 0;
while (index < bytes)
{
var tag = reader.ReadUInt32(index); index += sizeof(uint);
if (tag == ChunkTagVB)
{
// skip bounding volume info
index += BoundingVolumeSize;
layout = reader.ReadVertexLayout(ref index);
var vertexCount = reader.ReadUInt16(ref index);
var vertexData = reader.ReadArray <byte>(vertexCount * layout.Stride, ref index);
group.VertexBuffer = new VertexBuffer(MemoryBlock.FromArray(vertexData), layout);
}
else if (tag == ChunkTagIB)
{
var indexCount = reader.ReadUInt32(ref index);
var indexData = reader.ReadArray <ushort>((int)indexCount, ref index);
group.IndexBuffer = new IndexBuffer(MemoryBlock.FromArray(indexData));
}
else if (tag == ChunkTagPri)
{
// skip material name
var len = reader.ReadUInt16(ref index);
index += len;
// read primitive data
var count = reader.ReadUInt16(ref index);
for (int i = 0; i < count; i++)
{
// skip name
len = reader.ReadUInt16(ref index);
index += len;
var prim = reader.Read <Primitive>(ref index);
group.Primitives.Add(prim);
// skip bounding volumes
index += BoundingVolumeSize;
}
groups.Add(group);
group = new MeshGroup();
}
}
}
return(new Mesh(layout, groups));
}
