public InstanceModel(Model model)
{
Model = model;
PlaySpeed = 1;
CurrentFrame = model.FrameStart;
// orientation
Position = Vector3.Zero;
Scale = Vector3.One;
Rotation = Matrix3.Identity;
// objects
Objects = new InstanceObject[model.Objects.Length];
for (int i = 0; i != Objects.Length; ++i)
{
var type = model.Objects[i].GetType();
if (type == typeof(ObjectMesh)) Objects[i] = new InstanceObjectMesh((ObjectMesh)model.Objects[i]);
else if (type == typeof(ObjectArmature)) Objects[i] = new InstanceObjectArmature((ObjectArmature)model.Objects[i]);
else Debug.ThrowError("InstanceModel", "Unsuported Object type: " + type);
}
for (int i = 0; i != Objects.Length; ++i)
{
Objects[i].bindObjects(model.Objects[i]);
}
}
public ObjectArmature(BinaryReader reader, Model model)
: base(reader, model)
{
string armatureName = reader.ReadString();
foreach (var armature in model.Armatures)
{
if (armatureName == armature.Name)
{
Armature = armature;
break;
}
}
}
public ObjectMesh(BinaryReader reader, Model model)
: base(reader, model)
{
string meshName = reader.ReadString();
foreach (var mesh in model.Meshes)
{
if (meshName == mesh.Name)
{
Mesh = mesh;
break;
}
}
if (Mesh == null) Debug.ThrowError("ObjectMesh", "Failed to find Mesh");
}
public Mesh(BinaryReader reader, Model model, int classicInstanceCount)
: base(model)
{
try
{
Name = reader.ReadString();
// material
int materialIndex = reader.ReadInt32();
if (materialIndex != -1) Material = model.Materials[materialIndex];
// elements
int elementCount = reader.ReadInt32();
var elements = new List<BufferLayoutElement>();
for (int i = 0; i != elementCount; ++i)
{
elements.Add(new BufferLayoutElement((BufferLayoutElementTypes)reader.ReadInt32(), (BufferLayoutElementUsages)reader.ReadInt32(), reader.ReadInt32(), reader.ReadInt32(), reader.ReadInt32()));
}
LayoutDesc = BufferLayoutDescAPI.New(elements);
// vertices
int vertexFloatCount = reader.ReadInt32();
var vertices = new float[vertexFloatCount];
for (int i = 0; i != vertexFloatCount; ++i)
{
vertices[i] = reader.ReadSingle();
}
VertexBuffer = VertexBufferAPI.New(this, LayoutDesc, BufferUsages.Default, VertexBufferTopologys.Triangle, vertices);
// indices
int indexCount = reader.ReadInt32();
var indices = new int[indexCount];
for (int i = 0; i != indexCount; ++i)
{
indices[i] = reader.ReadInt32();
}
IndexBuffer = IndexBufferAPI.New(this, BufferUsages.Default, indices);
// create instancing buffers
ClassicInstanceCount = classicInstanceCount;
if (classicInstanceCount > 0)
{
var intancingElements = new List<BufferLayoutElement>();
foreach (var element in elements) intancingElements.Add(element);
intancingElements.Add(new BufferLayoutElement(BufferLayoutElementTypes.Float, BufferLayoutElementUsages.IndexClassic, 0, 0, LayoutDesc.FloatCount));
InstancingLayoutDesc = BufferLayoutDescAPI.New(intancingElements);
int instanceVertexFloatCount = (vertexFloatCount * classicInstanceCount) + (VertexBuffer.VertexCount * classicInstanceCount);
var instancingVertices = new float[instanceVertexFloatCount];
int vi = 0;
for (int i = 0; i != classicInstanceCount; ++i)
{
int vOffset = 0;
for (int i2 = 0; i2 != VertexBuffer.VertexCount; ++i2)
{
for (int i3 = 0; i3 != VertexBuffer.VertexFloatArraySize; ++i3)
{
instancingVertices[vi] = vertices[vOffset];
++vi;
++vOffset;
}
instancingVertices[vi] = i;
++vi;
}
}
InstancingVertexBuffer = VertexBufferAPI.New(this, InstancingLayoutDesc, BufferUsages.Default, VertexBuffer.Topology, instancingVertices);
int instanceIndexCount = (indexCount * classicInstanceCount);
var instancingIndices = new int[instanceIndexCount];
int ii = 0, iOffset = 0;
for (int i = 0; i != classicInstanceCount; ++i)
{
for (int i2 = 0; i2 != indexCount; ++i2)
{
instancingIndices[ii] = indices[i2] + iOffset;
++ii;
}
iOffset += VertexBuffer.VertexCount;
}
InstancingIndexBuffer = IndexBufferAPI.New(this, BufferUsages.Default, instancingIndices);
}
}
catch (Exception e)
{
Dispose();
throw e;
}
}
