Breaks

For breaks of considerable size the extraction of the material due to the break is done using CSG operations. The resulting surface represents the broken zone, which must be defined by an appropriate detail. This detail is specified by an image (2D texture) and then applied to the surface using displacement or bump mapping, depending on the detail size and the distance to the camera. (more...)

Next images show the results of simulating a broken part in comparison with the real photographs (left vs. right). Each row represents a different point of view and the last one is a close view of the broken zone
:

Real
Simulated
Part 4704: Picture 1
Simulation of picture 1
Picture 2
Simulation of picture 2
Picure 3, a close view
Simulation of picture 3


For smaller breaks or little losses of material the extraction of the material is best performed by sculpting the polygonal model of the part, pushing or pulling the involved polygons until the desired form of the brake is achieved. (more...)

Next images compare the results obtained by this technique. Each row represents the same break but at different distances:

Real
Simulated
Part 5036: Picure 1
Simulation of picture 1
Picture 2
Simulation of picture 2