Continuous tone representation of three-dimensional objects illuminated by sky light
SIGGRAPH '86 Proceedings of the 13th annual conference on Computer graphics and interactive techniques
Shading models for point and linear sources
ACM Transactions on Graphics (TOG)
Compositing 3-D rendered images
SIGGRAPH '85 Proceedings of the 12th annual conference on Computer graphics and interactive techniques
SIGGRAPH '85 Proceedings of the 12th annual conference on Computer graphics and interactive techniques
Improved Computational Methods for Ray Tracing
ACM Transactions on Graphics (TOG)
A more flexible image generation environment
SIGGRAPH '82 Proceedings of the 9th annual conference on Computer graphics and interactive techniques
A software test-bed for the development of 3-D raster graphics systems
SIGGRAPH '81 Proceedings of the 8th annual conference on Computer graphics and interactive techniques
A hidden-surface algorithm with anti-aliasing
SIGGRAPH '78 Proceedings of the 5th annual conference on Computer graphics and interactive techniques
Casting curved shadows on curved surfaces
SIGGRAPH '78 Proceedings of the 5th annual conference on Computer graphics and interactive techniques
SIGGRAPH '84 Proceedings of the 11th annual conference on Computer graphics and interactive techniques
SIGGRAPH '84 Proceedings of the 11th annual conference on Computer graphics and interactive techniques
Three dimensional Terrain modeling and display for environmental assessment
SIGGRAPH '89 Proceedings of the 16th annual conference on Computer graphics and interactive techniques
Comprehensible rendering of 3-D shapes
SIGGRAPH '90 Proceedings of the 17th annual conference on Computer graphics and interactive techniques
An updated cross-indexed guide to the ray-tracing literature
ACM SIGGRAPH Computer Graphics
Adaptive Parallel Rendering on Multiprocessors and Workstation Clusters
IEEE Transactions on Parallel and Distributed Systems
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A method is proposed for compositing 3-D images produced by different programs, taking depth order into consideration. The method can add the following effects to composited images: antialiased images with scaling are displayed by a simple algorithm; the algorithm can add shading effects due to various types of light, such as area sources and skylight; and ray tracing can be performed in localized regions, producing realistic results without the computational expense of ray tracing the whole image. In addition to the above processes, such shading effects as fog and texture mapping can be processed with conventional methods. Thus, it becomes possible to display complex scenes with various shading effects, using relatively small computers. The multiscanning method used for antialiasing and a data structure for processing it are described. Examples are presented to demonstrate the capability of the system.