We describe a hidden surface removal algorithm for two-dimensional layered scenes built from arbitrary primitives, particularly suited to interaction and animation in rich scenes (for example, in illustration). The method makes use of a set-based raster ...

In recent years, the subject of occlusion culling of large 3D environments has received substantial contribution. However the major amount of research into the area has focussed on occlusion culling of static scenes using spatial partitioning. The ...

In this paper we report a method of removing hidden surfaces in full-parallax computer-generated holograms. First, we examine the handling of light shielding by tilted patches in terms of wave optics, and then propose a silhouette approximation. In ...

We present techniques to create convincing high-quality watercolor illustrations of plants. Mainly focusing on the real-time rendering, we introduce methods to abstract the visual and geometrical complexity of the original 3D plant models that are ...

This paper presents a fast and complete rendering method that can be used for creating digital horizontal parallax only (HPO) holograms of a scene consisting of triangle mesh objects. This method solves visibility and occlusion problems and is capable ...

We present a technique that aims at exploiting temporal coherence of ray casted walkthroughs. Our goal is to reuse ray/object inter sections computed in the last frame of the walkthrough for acceleration of ray casting in the current frame. In ...

Computing the visible portions of curved surfaces from a given viewpoint is of great interest in many applications. It is closely related to the hidden surface removal problem in computer graphics, and machining applications in manufacturing. Most of ...

In the production of computer generated pictures of three dimensional objects, one stage of the calculation is the determination of the intensity of a given object once its visibility has been established. This is typically done by modelling the surface ...

The quality of computer generated images of three-dimensional scenes depends on the shading technique used to paint the objects on the cathode-ray tube screen. The shading algorithm itself depends in part on the method for modeling the object, which ...

The Truga001 is a single chip rendering processor with 12 embedded graphics functions. Phong and bump mapped shading, reflection and reflection mapping, gaseous object rendering and video mapping are incorporated fully in hardware with a MIMD structure. ...

The authors consider the practical problem of constructing binary space partitions (BSPs) for a set S of n orthogonal, nonintersecting, two-dimensional rectangles in R/sup 3/ such that the aspect ratio of each rectangle in S is at most /spl alpha/, for ...

We present a solution to one of the fundamental problems in computer graphics, the hidden surface removal. In most 3D-graphics systems the hidden surface removal is done using the Z-Buffer algorithm. This method, however, requires one to perform a read-...