Abstract
This paper presents an immersive virtual sculpting system which enables a user to zoom in a oart of 3-D solid object and make the part detailed by carving or adding materials. ln our modeler, ob jects afe represented by implicit surfaces based on ooint skeletons arranged on sampling erids and field functions. The level of detail of shape deformation depends on the size of sampling grids and field functions. which afe set up in every level of it. The detailed deformations have the data structure of locally detailed sampling grids. lo reduce the time reauired for rendering the surfaces and keep the quality of rendering, implicit surfaces are converted to an appropronriate number of polygonnatches according to the degree of zoom.
