Paper Info
Title
Direct Rendering of Solid CAD Models on the GPU
Abstract
Interactively rendering solid CAD models currently relies on tessellation of the models and passing of the tessellation onto the graphics card (GPU). Direct rendering on the GPU, without a tessellation preprocess, has many advantages -- pixel-level quality, less memory requirements, and less preprocessing, to name a few. However, one of the main problems with existing solutions for rendering solid models directly is the appearance of crack/gap artifacts between faces due to the approximations of the trimming curves. This prevents the usage of direct GPU rendering in CAD systems. In this paper we present a novel solution to the gap problem. The new method combines a unique representation of the faces of the solid model, with fragment shader algorithms that utilize the representation for identifying the surface area to be rendered. This enables us to render the models with high quality in interactive speed without the crack/gap artifacts. We have implemented our method in a ray casting system for viewing CAD solid models and present our results.
Year
DOI
Venue
2011
10.1109/CAD/Graphics.2011.63
Computer-Aided Design and Computer Graphics
Keywords
Field
DocType
tessellation preprocess,direct rendering,cad solid model,solid cad models,cad system,solid cad model,direct gpu rendering,high quality,gap artifact,solid model,gap problem,solid modeling,surface area,ray casting,coprocessors,cad
Computer vision,Parallel rendering,Computer graphics (images),3D rendering,Computer science,Real-time rendering,Alternate frame rendering,Artificial intelligence,Software rendering,Rendering (computer graphics),Tessellation (computer graphics),Tiled rendering
Conference
ISBN
Citations 
PageRank 
978-1-4577-1079-7
5
0.47
References 
Authors
8
2
Name
Order
Citations
PageRank
Iddo Hanniel119712.98
Kirk Haller2362.78