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Method for reducing flickers by reusing dynamic three-dimensional scene interframe illumination transmission path for sampling

A transmission path and three-dimensional scene technology, which is applied in animation production, 3D image processing, image data processing, etc.

Active Publication Date: 2014-10-01
CHANGCHUN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In fact, the existing global illumination effect rendering method based on virtual point light sources can be regarded as limiting the number of line segments contained in the transmission path of viewpoint sampling light to 1

Method used

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  • Method for reducing flickers by reusing dynamic three-dimensional scene interframe illumination transmission path for sampling
  • Method for reducing flickers by reusing dynamic three-dimensional scene interframe illumination transmission path for sampling

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Embodiment Construction

[0034] In order to make the features and advantages of the method more clear, the method will be further described below in conjunction with specific embodiments. In this embodiment, consider a dynamic three-dimensional scene in which a person walks in an office, and there is a light source on the ceiling of the office. The CPU of the computer system is Intel(R) Xeon(R) CPU E3-1225v33.20GHz, the memory is Kingston 8GB DDR31333, the hard disk is Buffalo HD-CE1.5TU2; the computer operating system is Windows7, and the software programming tool is VC++2010.

[0035] The purpose of this method is to provide a method for reducing picture flicker by reusing the sampling of light transmission path between frames of a dynamic three-dimensional scene. The technical solution of this method: divide the geometric objects in the dynamic three-dimensional scene into static geometric objects and dynamic geometric objects, all static geometric objects are organized and managed by a scene graph...

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Abstract

The invention discloses a method for reducing flickers by reusing a dynamic three-dimensional scene interframe illumination transmission path for sampling. The method comprises the steps that geometric objects in the dynamic three-dimensional scene are divided into static geometric objects and dynamic geometric objects at first; all the static geometric objects are organized and managed through one scene graph; all the dynamic geometric objects are organized and managed through the other scene graph; a light source sampling light transmission path is generated for static three-dimensional sub scenes; when a dynamic three-dimensional scene is drawn, a valid light source sampling light transmission path is reused between frames, and the flickers of the dynamic three-dimensional scene can be significantly reduced.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional graphics rendering, and relates to a method for reducing picture flicker by reusing sampling of light transmission paths between frames of a dynamic three-dimensional scene. Background technique [0002] The generation of global illumination effect is the key in realistic 3D scene rendering. In theory, global illumination can be decomposed into direct illumination and indirect illumination. There are many methods for rendering global illumination effects of 3D scenes, such as ray tracing, path tracing, photon mapping, etc. For a dynamic 3D scene, geometric objects in the 3D scene may change in motion between different frames. For methods such as path tracing and photon mapping, if the sampling of the light transmission path of adjacent frames changes greatly, the drawn 3D scene picture will have obvious flickering phenomenon in time, which will affect the visual effect of the dynamic p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T13/20G06T15/50
Inventor 陈纯毅杨华民蒋振刚李华曲福恒李岩芳
Owner CHANGCHUN UNIV OF SCI & TECH
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