Penggunaan Algoritma Z-Fail dan Z-Pass untuk Mendesain Shadow Volume

Abstract

Nowadays the use of shadowing has become an important factor in the world of visualization. In order to produce a high-grade images and also covering the 3D base, all such things above will not be realized without knowing the technique of lighting and shadowing. Because all of the problem above, on this paper we will try and discuss an algorithm method which is often used in the image shadowing technique. The two algorithm that will be discussed in this paper is Z-fail Algorithm and Z-pass Algorithm. We are expected with the existence of this paper will provide a visible images of the implementation of those algorithm within the applications of Shadow Volumes. In this paper, we show the effect of stencil buffer to each algorithm, so it can be seen the differences of each stencil operation. We also give the output appearance of shadow volumes project which included in OpenGL project to demonstrate the function of Z-fail and Z-pass algorithm.