public CollisionMesh(Model model, uint subdivLevel)
{
int verticesCapacity = 0;
int facesCapacity = 0;
foreach (ModelMesh mesh in model.Meshes)
{
foreach (ModelMeshPart part in mesh.MeshParts)
{
verticesCapacity += part.VertexBuffer.VertexCount;
facesCapacity += part.PrimitiveCount;
}
}
vertices = new Vector3[verticesCapacity];
faces = new CollisionFace[facesCapacity];
int verticesLength = 0;
int facesLength = 0;
Matrix[] modelTransforms = new Matrix[model.Bones.Count];
model.CopyAbsoluteBoneTransformsTo(modelTransforms);
foreach (ModelMesh mesh in model.Meshes)
{
Matrix meshTransform = modelTransforms[mesh.ParentBone.Index];
foreach (ModelMeshPart part in mesh.MeshParts)
{
int vertexCount = part.VertexBuffer.VertexCount;
CustomVertex[] partVertices = new CustomVertex[vertexCount];
part.VertexBuffer.GetData(partVertices);
for (int i = 0; i < vertexCount; i++)
{
vertices[verticesLength + i] =
Vector3.Transform(partVertices[i].Position, meshTransform);
}
int indexCount = part.IndexBuffer.IndexCount;
short[] partIndices = new short[indexCount];
part.IndexBuffer.GetData(partIndices);
for (int i = 0; i < part.PrimitiveCount; i++)
{
faces[facesLength + i] = new CollisionFace(
part.StartIndex + i * 3, partIndices,
verticesLength + part.VertexOffset, vertices);
}
verticesLength += vertexCount;
facesLength += part.PrimitiveCount;
}
}
CollisionBox box = new CollisionBox(float.MaxValue, -float.MaxValue);
for (int i = 0; i < verticesCapacity; i++)
box.AddPoint(vertices[i]);
if (subdivLevel > 6)
subdivLevel = 6; // max 8^6 nodes
tree = new CollisionTree(box, subdivLevel);
for (int i = 0; i < facesCapacity; i++)
tree.AddElement(faces[i]);
}
public CollisionMesh(Model model, uint subdivLevel)
{
int verticesCapacity = 0;
int facesCapacity = 0;
foreach (ModelMesh mesh in model.Meshes)
{
foreach (ModelMeshPart part in mesh.MeshParts)
{
verticesCapacity += part.VertexBuffer.VertexCount;
facesCapacity += part.PrimitiveCount;
}
}
vertices = new Vector3[verticesCapacity];
faces = new CollisionFace[facesCapacity];
int verticesLength = 0;
int facesLength = 0;
Matrix[] modelTransforms = new Matrix[model.Bones.Count];
model.CopyAbsoluteBoneTransformsTo(modelTransforms);
foreach (ModelMesh mesh in model.Meshes)
{
Matrix meshTransform = modelTransforms[mesh.ParentBone.Index];
foreach (ModelMeshPart part in mesh.MeshParts)
{
int vertexCount = part.VertexBuffer.VertexCount;
CustomVertex[] partVertices = new CustomVertex[vertexCount];
part.VertexBuffer.GetData(partVertices);
for (int i = 0; i < vertexCount; i++)
{
vertices[verticesLength + i] =
Vector3.Transform(partVertices[i].Position, meshTransform);
}
int indexCount = part.IndexBuffer.IndexCount;
short[] partIndices = new short[indexCount];
part.IndexBuffer.GetData(partIndices);
for (int i = 0; i < part.PrimitiveCount; i++)
{
faces[facesLength + i] = new CollisionFace(
part.StartIndex + i * 3, partIndices,
verticesLength + part.VertexOffset, vertices);
}
verticesLength += vertexCount;
facesLength += part.PrimitiveCount;
}
}
CollisionBox box = new CollisionBox(float.MaxValue, -float.MaxValue);
for (int i = 0; i < verticesCapacity; i++)
{
box.AddPoint(vertices[i]);
}
if (subdivLevel > 6)
{
subdivLevel = 6; // max 8^6 nodes
}
tree = new CollisionTree(box, subdivLevel);
for (int i = 0; i < facesCapacity; i++)
{
tree.AddElement(faces[i]);
}
}
