public List <GameObject> CutObject(GameObject obj, bool destroyPrevious = false)
{
// represent the NDPlane in obj's reference frame
Vector3 refUp = obj.transform.InverseTransformDirection(transform.up);
Vector3 refPt = obj.transform.InverseTransformPoint(transform.position);
plane.ComputePlane(refPt, refUp);
prevCuts = MeshSlicer.CutObjectInstantiate(obj, plane, destroyPrevious);
return(prevCuts);
}
private void Split()
{
NDPlane plane = new NDPlane();
plane.ComputePlane((mpta + mptb + mptc) / 3, RandomVector3());
List<Vector3> upper = new List<Vector3>();
List<Vector3> lower = new List<Vector3>();
List<Vector3> intersection = new List<Vector3>();
plane.IntersectTriangleHull(mpta, mptb, mptc, upper, lower, intersection);
upper.AddRange(intersection);
lower.AddRange(intersection);
List<int> indices = new List<int>();
// UPPER HULL
Triangulator.TriangulateNDSlice(upper, indices);
for (int i = 0; i < indices.Count; i += 3) {
RenderTriangle tri = new RenderTriangle();
Vector3 pta = upper[indices[i]];
Vector3 ptb = upper[indices[i+1]];
Vector3 ptc = upper[indices[i+2]];
Vector2 uva = Triangulator.GenerateUVCoords(ref mpta, ref mptb, ref mptc, ref muva, ref muvb, ref muvc, ref pta);
Vector2 uvb = Triangulator.GenerateUVCoords(ref mpta, ref mptb, ref mptc, ref muva, ref muvb, ref muvc, ref ptb);
Vector2 uvc = Triangulator.GenerateUVCoords(ref mpta, ref mptb, ref mptc, ref muva, ref muvb, ref muvc, ref ptc);
tri.SetPoints(pta, ptb, ptc);
tri.SetUV(uva, uvb, uvc);
splits.Add(tri);
}
indices.Clear();
// LOWER HULL
Triangulator.TriangulateNDSlice(lower, indices);
for (int i = 0; i < indices.Count; i += 3) {
RenderTriangle tri = new RenderTriangle();
Vector3 pta = lower[indices[i]];
Vector3 ptb = lower[indices[i + 1]];
Vector3 ptc = lower[indices[i + 2]];
Vector2 uva = Triangulator.GenerateUVCoords(ref mpta, ref mptb, ref mptc, ref muva, ref muvb, ref muvc, ref pta);
Vector2 uvb = Triangulator.GenerateUVCoords(ref mpta, ref mptb, ref mptc, ref muva, ref muvb, ref muvc, ref ptb);
Vector2 uvc = Triangulator.GenerateUVCoords(ref mpta, ref mptb, ref mptc, ref muva, ref muvb, ref muvc, ref ptc);
tri.SetPoints(pta, ptb, ptc);
tri.SetUV(uva, uvb, uvc);
splits.Add(tri);
}
}
public void CutObject(GameObject obj, bool destroyPrevious = false)
{
plane.ComputePlane(transform.position, transform.up);
MeshSlicer.CutObjectInstantiate(obj, plane, destroyPrevious);
}
