NDLI: Efficient partitioning of fragment shaders for multiple-output hardware

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Efficient partitioning of fragment shaders for multiple-output hardware

Content Provider	ACM Digital Library
Author	Foley, Tim Hanrahan, Pat Houston, Mike
Abstract	Partitioning fragment shaders into multiple rendering passes is an effective technique for virtualizing shading resource limits in graphics hardware. The Recursive Dominator Split (RDS) algorithm is a polynomial-time algorithm for partitioning fragment shaders for real-time rendering that has been shown to generate efficient partitions. RDS does not, however, work for shaders with multiple outputs, and does not optimize for hardware with support for multiple render targets.We present Merging Recursive Dominator Split (MRDS), an extension of the RDS algorithm to shaders with arbitrary numbers of outputs which can efficiently utilize hardware support for multiple render targets, as well as a new cost metric for evaluating the quality of multipass partitions on modern consumer graphics hardware. We demonstrate that partitions generated by our algorithm execute more efficiently than those generated by RDS alone, and that our cost model is effective in predicting the relative performance of multipass partitions.
Starting Page	45
Ending Page	53
Page Count	9
File Format	PDF
ISBN	3905673150
ISSN	17273471
DOI	10.1145/1058129.1058136
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2004-08-29
Publisher Place	New York
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

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