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  Micro-Rendering for Scalable, Parallel Final Gathering

Ritschel, T., Engelhardt, T., Grosch, T., Seidel, H.-P., Kautz, J., & Dachsbacher, C. (2009). Micro-Rendering for Scalable, Parallel Final Gathering. In ACM Transactions on Graphics (Proceedings SIGGRAPH Asia 2009). New York: ACM.

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 Creators:
Ritschel, Tobias1, Author           
Engelhardt, Thomas2, Author
Grosch, Thorsten1, Author           
Seidel, Hans-Peter1, Author           
Kautz, Jan1, Author           
Dachsbacher, Carsten2, Author
Affiliations:
1Computer Graphics, MPI for Informatics, Max Planck Society, ou_40047              
2Max Planck Society, ou_persistent13              

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 Abstract: Recent approaches to global illumination for dynamic scenes achieve interactive frame rates by using coarse approximations to geometry, lighting, or both, which limits scene complexity and rendering quality. High-quality global illumination renderings of complex scenes are still limited to methods based on ray tracing. While conceptually simple, these techniques are computationally expensive. We present an efficient and scalable method to compute global illumination solutions at interactive rates for complex and dynamic scenes. Our method is based on parallel final gathering running entirely on the GPU. At each final gathering location we perform micro-rendering: we traverse and rasterize a hierarchical point-based scene representation into an importance-warped micro-buffer, which allows for BRDF importance sampling. The final reflected radiance is computed at each gathering location using the micro-buffers and is then stored in image-space. We can trade quality for speed by reducing the sampling rate of the gathering locations in conjunction with bilateral upsampling. We demonstrate the applicability of our method to interactive global illumination, the simulation of multiple indirect bounces, and to final gathering from photon maps.

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Language(s): eng - English
 Dates: 2009-09-202009
 Publication Status: Issued
 Pages: -
 Publishing info: New York : ACM
 Table of Contents: -
 Rev. Type: -
 Identifiers: eDoc: 520472
Other: Local-ID: C125675300671F7B-988EEF659FD4FDBCC1257637006845B4-RitschelEGSKD2009:MicroRendering
 Degree: -

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Title: Untitled Event
Place of Event: Yokohama, Japan
Start-/End Date: 2009-12-16 - 2009-12-19

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Title: ACM Transactions on Graphics (Proceedings SIGGRAPH Asia 2009)
Source Genre: Proceedings
 Creator(s):
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Publ. Info: New York : ACM
Pages: - Volume / Issue: - Sequence Number: - Start / End Page: - Identifier: -