private static void GetVerticesAndIndicesFromModel(Microsoft.Xna.Framework.Graphics.Model collisionModel, string collisionMesh, out Vector3[] vertices, out int[] indices)
{
if (string.IsNullOrEmpty(collisionMesh) || !collisionModel.Meshes.Any(mesh => mesh.Name == collisionMesh))
{
TriangleMesh.GetVerticesAndIndicesFromModel(collisionModel, out vertices, out indices);
return;
}
var verticesList = new List <Vector3>();
var indicesList = new List <int>();
var transforms = new Matrix[collisionModel.Bones.Count];
collisionModel.CopyAbsoluteBoneTransformsTo(transforms);
Matrix transform;
foreach (Microsoft.Xna.Framework.Graphics.ModelMesh mesh in collisionModel.Meshes)
{
if (mesh.Name == collisionMesh)
{
if (mesh.ParentBone != null)
{
transform = transforms[mesh.ParentBone.Index];
}
else
{
transform = Matrix.Identity;
}
TriangleMesh.AddMesh(mesh, transform, verticesList, indicesList);
}
}
vertices = verticesList.ToArray();
indices = indicesList.ToArray();
}