deforming models

something I haven''t seen before in games to date is decently deformable objects. i''m not talking about a predefined mesh animation, but rather being able (in the context of my game-to-be) punching out a chunk of concrete in a wall. one approach i''ve though of is this: find impact point find final distance impact goes into object select an appropriate displacement map interpolate verticies to match displacement map apply displacement map to mesh create particle system at impact point for debris now i know this is far from perfect, but i think it''d be quite suitable (and hopefully effective) for small chunks, like when punching a wall. the bigest problem i think would be working out where to create the interpolate verticies so they match up with the displacement map. does anyone have any ideas on how to do this? any thoughts on the idea or other possible methods would be much appreciated Joanus D''Mentia --------------- The three phases of me... The twit, the tool and the lonely fool.