Breaking glass?

[Anonymous]

Hey everyone! I have a scene where there is a glass plate in front of the camera. I'd like to break it. I watched quite a few tutorials, but none of them seem to touch on the following subject. The way I approach is this: I make a plane. Cut it up. Select edges. Detach. Then I extrude to give it thickness. Aplly nCloth. And I have a rigid body that breaks it. The probelm is when I apply a glass shader on this and render it. I can see all the cuts I made prior to glass being broken. Is there a way for those slices to become visible only when they leave the original plane?

Thank you for any advise!

[rpsnir1]

beter to use 2 mesh . one before hitting the collider and another after colliding 🙂

[Anonymous]

if you select thin walled in your material attributes that might work.

[agraham]

It should be a trick in the composite. Render up to the frame before the glass gets hit with the original, unbroken glass shown, the shards hidden. Then the next frame, unhide your shards, and hide your glass. Just keyframe visibility to do this.

[Anonymous]

There is a problem with this approach. Since those bullets have a trail, of textured particles when you will swat the footage the trail will disappear and won't be seen through falling pieces of glass.