Using render-graph characteristics to optimize the rendering of an adjusted image

Patent metadata

Field	Value
Publication number	US-8970596-B2
Application number	US-201213399444-A
Country	US
Kind code	B2
Filing date	Feb 17, 2012
Priority date	Feb 17, 2012
Publication date	Mar 3, 2015
Grant date	Mar 3, 2015

Abstract

A technique for optimizing the rendering of such complex render-graphs caches intermediate buffers of nodes that are expected to be re-used after they've been rendered. The render-graph is examined to determine the number of re-uses of each node's output buffer, and the buffer is cached in memory until all the re-uses of the buffer have occurred. Once all the re-uses of the buffer have occurred, the buffer is removed from the cache. This technique guarantees that for a given render-graph, no nodes will be re-rendered, resulting in improved render performance.

First claim

What is claimed is:

1. A method of rendering an image, comprising:
generating, using a processor, a render graph corresponding to an image, the render graph comprising a first node in a plurality of nodes;
analyzing the render graph, using the processor, to identify a total number of nodes in the plurality of nodes that use an output of the first node;
assigning, using the processor, the identified total number of nodes as the first node's use indicator;
and
executing, usi…

Assignees

• Murthy Giridhar Sreenivasa
• Hayward David
• Naaman Alexandre
• Apple Inc

Inventors

• Murthy Giridhar Sreenivasa
• Hayward David
• Naaman Alexandre

Classifications

• G06T15/005 Primary

  Physics · mapped topic