I am making an animation where the character is shimming across a ledge, and the ledge starts to crumble. I would have to delete faces of the ledge to make them crumble. How can I do that?
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$\begingroup$ Try looking at the answers on this question and see if they help: blender.stackexchange.com/questions/3337/… If not, leave a comment asking for more help. $\endgroup$– Thom Blair IIIApr 6, 2014 at 17:15
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$\begingroup$ You can also try this: blender.stackexchange.com/questions/3370/… but I'm not sure if it's what you're looking for. $\endgroup$– Thom Blair IIIApr 6, 2014 at 17:15
1 Answer
You could use a Mask modifier if you really want to delete certain faces on a certain frame, however I'm not sure this is really what you want to do.
Mask modifier:
If you really want to delete a specific face (or faces) on a certain frame, then you can use the Mask modifier.
Select the faces you want to hide and assign them to a vertex group in Properties > Object data > Vertex groups
Add a mask modifier and select your vertex group and enable Invert by clicking the button next to the vertex group selector:
Keyframe the visibility of the modifier by hovering over the eye icon and pressing I.
If you want more variation, try using a reversed Build modifier. This will delete all faces in the object over time, either randomly or in order.
Fracturing:
If you are trying to make a more complex/realistic You might also want to try the Cell fracture addon (see this post):
Or the explode modifier.
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3$\begingroup$ All faces touching a vertex assigned to the Vertex Group also disappear. To get just a single face to disappear, select that face in Edit Mode, then go to
Mesh
>Faces
>Poke Faces
, and only assign the new vertex at the center of the poked face to the Vertex Group. $\endgroup$– GarrettApr 6, 2014 at 21:12