An introduction to ray tracing
An introduction to ray tracing
Global illumination using photon maps
Proceedings of the eurographics workshop on Rendering techniques '96
Interactive global illumination using selective photon tracing
EGRW '02 Proceedings of the 13th Eurographics workshop on Rendering
EGRW '02 Proceedings of the 13th Eurographics workshop on Rendering
On the efficiency of ray-shooting acceleration schemes
SCCG '02 Proceedings of the 18th spring conference on Computer graphics
Dynamic Acceleration Structures for Interactive Ray Tracing
Proceedings of the Eurographics Workshop on Rendering Techniques 2000
| Hi-index | 0.00 |
Until recently, research on global illumination and photon maps in particular considered only static scenes. As hardware capabilities and acceleration techniques allow for more rapid image generation, the application of these methods for animation becomes more relevant. Techniques that retain more information about rendered frames are able to exploit coherence between frames to a larger extent. Storing all of the shooting walks, as does the photon map, is a good basis for generating a modified image more rapidly. In this paper, we describe a fast, but conservative method to verify the stored shooting walks. As a result, the cost of updating of the modified walks becomes comparable to the cost of verification, making nonconservative methods and their inherent assumptions unnecessary. In order to achieve this, we use a separation of dynamic and static objects that allows for occlusion tests limited to potentially moving objects.