High-quality volume rendering using texture mapping hardware
Frank T. Dachille, Kevin A. Kreeger, Baoquan Chen, Ingmar Bitter, Arie E. Kaufman · 1998
Wt present a method Jor volume rendering of regular grids cclhic~h takes advantage of <?D texture mapping hardware currc,rhlly available on graphics workstations.Our method products accurate shadang for arbitrary and dynamically changing directionul lights, viewing parameters, and transfer func-lior~.TIlis is achieved by hardware interpolating the data values and gradients before software classification and shadrng.The method works equally well for parallel and perspective projections.We present two approaches for OUT method: one which takes advantage of software ray casting optimita-Irons nnd another which takes advantage of hardware blending (Acceleration.