private static void PopulateMeshGroups(Dictionary <Material, List <MeshTransform> > meshGroups, GameObject go, Mesh mesh)
{
Mesh[] meshes = MeshUtils.Separate(mesh);
Material[] rendererMaterials;
Renderer renderer = go.GetComponent <Renderer>();
if (renderer == null)
{
rendererMaterials = new Material[meshes.Length];
}
else
{
rendererMaterials = renderer.sharedMaterials;
System.Array.Resize(ref rendererMaterials, meshes.Length);
}
for (int m = 0; m < rendererMaterials.Length; ++m)
{
Material material = rendererMaterials[m];
if (!meshGroups.ContainsKey(material))
{
meshGroups.Add(material, new List <MeshTransform>());
}
List <MeshTransform> group = meshGroups[material];
group.Add(new MeshTransform(meshes[m], go.transform.localToWorldMatrix));
}
}
private static Mesh RemoveRotation(Mesh mesh, Matrix4x4 targetRotationMatrix, bool merge)
{
Mesh[] meshes = MeshUtils.Separate(mesh);
CombineInstance[] combineInstances = new CombineInstance[meshes.Length];
for (int i = 0; i < meshes.Length; ++i)
{
CombineInstance removeRotation = new CombineInstance();
removeRotation.mesh = meshes[i];
removeRotation.subMeshIndex = 0;
removeRotation.transform = targetRotationMatrix;
combineInstances[i] = removeRotation;
}
//got final mesh without rotation
mesh = new Mesh();
mesh.CombineMeshes(combineInstances, merge);
mesh.RecalculateBounds();
return(mesh);
}
private static List <Mesh> GetColliderMeshes(GameObject obj)
{
List <Mesh> meshes = new List <Mesh>();
Collider[] allColliders = obj.GetComponents <Collider>();
if (allColliders.Length == 0)
{
MeshFilter f = obj.GetComponent <MeshFilter>();
if (f != null)
{
//UNCOMMENT TO INCLUDE OBJECT MESH TO COLLIDER
//meshes.AddRange(Separate(f.sharedMesh));
}
}
else
{
for (int i = 0; i < allColliders.Length; ++i)
{
MeshCollider meshCollider = allColliders[i] as MeshCollider;
if (meshCollider != null)
{
meshes.AddRange(MeshUtils.Separate(meshCollider.sharedMesh));
}
else
{
//Use object's mesh if there is no meshcollider
MeshFilter f = obj.GetComponent <MeshFilter>();
if (f != null)
{
meshes.AddRange(MeshUtils.Separate(f.sharedMesh));
}
}
}
}
return(meshes);
}