// Example:

void make_random_shape(CMesh& mesh, float radius) {

        // Probably not the most optimized way to do this. ;)
        
        CBrush brush;
        CVector origin; // Origin = (0.0, 0.0, 0.0).
        
        for (int i = 0; i < 3; i++)
        {
        
                CPlane* plane = brush.add(new CPlane);
                
                // Make a random normal.
                
                for (int j = 0; j < 3; j++)
                        plane->normal[j] = (rand() & 1023) / 1023.0 - 0.5;
                        
                plane.normal.normalize();
                
                // Offset plane from origin.
                
                plane->distance = radius;               
                
                // Make sure every plane's normal points away from origin.
                
                if (plane * origin > 0.0)
                        plane = - plane;
        
        }
        
        // Convert brush to mesh, and move polygons to output mesh.
        
        CMesh* tmp = brush.mesh();
        
        tmp->move(mesh);
        
        delete tmp;

}