System, method, and computer program product for computing indirect lighting in a cloud network

Patent metadata

Field	Value
Publication number	US-10008034-B2
Application number	US-201314058132-A
Country	US
Kind code	B2
Filing date	Oct 18, 2013
Priority date	May 3, 2013
Publication date	Jun 26, 2018
Grant date	Jun 26, 2018

Abstract

A system, method, and computer program product are provided for computing indirect lighting in a cloud network. In operation, one or more scenes for rendering are identified. Further, indirect lighting associated with the one or more scenes is identified. Additionally, computation associated with the indirect lighting is performed in a cloud network utilizing at least one of a voxel-based algorithm, a photon-based algorithm, or an irradiance-map-based algorithm.

First claim

What is claimed is:

1. A method, including:
identifying at a cloud network including a server computer one or more scenes to be rendered at a client device;
identifying at the server computer of the cloud network indirect lighting associated with the one or more scenes; and
performing at the server computer of the cloud network a computation of the indirect lighting utilizing
voxels representing indirect irradiance for the one or more scenes as a directionally varying, low-dimensional quantity in a sparse hierarchical spatial partition; and

sending data associated with the computation from the server computer of the cloud network to the client device to be used for rendering at the client device, including streaming the voxels to the client device for decoding thereof and use in rendering the one or more scenes.

2. The method of claim 1 , wherein the data associated with the computation is shared between two or more client devices that include the client device to which the data associated with the computation is sent.

3. The method of claim 1 , wherein performing the computation of the indirect lighting associated with the one or more scenes includes performing the computation asynchronously.

4. The method of claim 1 , further comprising causing amortization of the indirect lighting over multiple client devices.

5. The method of claim 1 , wherein the sparse hierarchical spatial partition is a sparse octree.

6. A non-transitory computer-readable storage medium storing instructions that, when executed by a processor, cause the processor to perform steps comprising:
identifying at a cloud network including a server computer one or more scenes to be rendered at a client device;
identifying at the server computer of the cloud network indirect lighting associated with the one or more scenes; and
performing at the server computer of the cloud network a computation of the indirect lighting utilizing
voxels representing indirect irradiance for the one or more scenes as a directionally varying, low-dimensional quantity in a sparse hierarchical spatial partition; and

sending data associated with the computation from the server computer of the cloud network to the client device to be used for rendering at the client device, including streaming the voxels to the client device for decoding thereof and use in rendering the one or more scenes.

7. A server computer in a cloud network comprising:
a memory system; and
one or more processing cores coupled to the memory system and that are each configured for:
identifying one or more scenes to be rendered at a client device;
identifying indirect lighting associated with the one or more scenes; and
performing a computation of the indirect lighting utilizing
voxels representing indirect irradiance for the one or more scenes as a directionally varying, low-dimensional quantity in a sparse hierarchical spatial partition; and

sending data associated with the computation to the client device to be used for rendering at the client device, including streaming the voxels to the client device for decoding thereof and use in rendering the one or more scenes.

Assignees

• Nvidia Corp

Inventors

• Mcguire Morgan
• Crassin Cyril Jean-Francois
• Luebke David Patrick
• Mara Michael Thomas
• Oster Brent L
• Shirley Peter Schuyler
• Sloan Peter-Pike J
• Wyman Christopher Ryan

Classifications

• G06T15/55 Primary

  Radiosity · CPC title

• A63F13/355

  Performing operations on behalf of clients with restricted processing capabilities, e.g. servers transform changing game scene into an encoded video stream for transmitting to a mobile phone or a thin client · CPC title

• G06T15/005

  General purpose rendering architectures · CPC title