Two algorithms for taking advantage of temporal coherence in ray tracing. (English) Zbl 0651.65009
The basic ray-tracing algorithm is adapted to take advantage of temporal coherence and to make ray-tracing faster for the production of motion pictures. Temporal coherence can be either image space temporal coherence or object space temporal coherence.
Three rendering techniques are described: the first technique is called the image space temporal coherence algorithm, the second technique is called the reprojection algorithm and the third technique is manual touch-up. The algorithms can be combined into a single program.
The author presents timing results of an implementation of the reprojection algorithm.
Three rendering techniques are described: the first technique is called the image space temporal coherence algorithm, the second technique is called the reprojection algorithm and the third technique is manual touch-up. The algorithms can be combined into a single program.
The author presents timing results of an implementation of the reprojection algorithm.
Reviewer: G.R.Grozev
MSC:
| 65D15 | Algorithms for approximation of functions |
| 68U20 | Simulation (MSC2010) |
| 51N05 | Descriptive geometry |
Keywords:
Ray casting; computer graphics; ray-tracing algorithm; temporal coherence; motion pictures; rendering; reprojection algorithmReferences:
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