If a mesh does not intersect the cutting plane it would be nice if I was told if it was on the upper or lower side.

[davidarayan]

If a mesh does not intersect the cutting plane it would be nice if I was told if it was on the upper or lower side.

[DavidArayan]

Hello @The-MAZZTer,

Have a look at https://github.com/DavidArayan/ezy-slice/blob/master/EzySlice/Framework/Plane.cs#L83. This function takes a Vector3 and lets you know which side of the plane the point is on.

Since you already have a Plane object (needed to make cuts) you can perform this test on the application side. The code will follows.

1. Perform the slice operation using a Plane
2. If the slice is null, grab a random vertex (maybe first point?) from the mesh you were trying to cut.
3. Test this point against myPlane.SideOf(myVertex) which will return SideOfPlane.UP, SideOfPlane.DOWN or SideOfPlane.ON

[The-MAZZTer]

I am using UnityEngine.Plane.GetSide which does the same thing and I have that working. Not sure why you have your own Plane class but I haven't looked at it; I assume there is a good reason though.

I pretty much did what you described. I just think it would be nice to not have to do that extra step since the .Slice function has that information anyway.

[DavidArayan]

Probably because UnityEngine.Plane just didn't exist or was incomplete when I worked on this code!