Overall illumination computer simulation processing method based on photon mapping image

A photon mapping and analog processing technology, applied in the direction of program control devices, etc., can solve the problem of difficult to draw images, and achieve the effect of fast and realistic rendering effect.

Inactive Publication Date: 2013-03-20
SUZHOU LIANGJIANG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a computer simulation processing method for overall lighting based on ph

Method used

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  • Overall illumination computer simulation processing method based on photon mapping image
  • Overall illumination computer simulation processing method based on photon mapping image
  • Overall illumination computer simulation processing method based on photon mapping image

Examples

Experimental program
Comparison scheme
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Embodiment

[0029] like figure 1 As shown, the present embodiment performs the computer simulation processing flow chart of the overall illumination based on the photon map. Follow the steps below:

[0030] (1) Establish the structure of photons

[0031] The computer builds the photon's structure by simulating the photon's parameters. The structure of a photon mainly has three variables, namely the position, direction, and energy of the photon, and its structure is as follows:

[0032]

[0033] Since the present invention uses the KD tree to store photons, a variable is also set to indicate the position of the photon in the KD tree.

[0034] (2) Create a class for photon graphs

[0035] In order to spread the energy and adjust the photon motion, it is necessary to create a class that includes the photon structure and all functional functions. This class mainly has the following member variables or functions: a pointer to the global photon graph, a variable to record the number of ...

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Abstract

The invention discloses an overall illumination computer simulation processing method based on a photon mapping image. The method is characterized by comprising that a photon is emitted from a light source to a computer virtualized scene and is tracked, and when the photon strikes the surface of a scene content non-specular surface object, the photon is stored in the photon mapping image; incidence luminous flux of any point in the computer virtualized scene and reflected luminescence radiancy information are extracted by means of statistic technique according to the photon mapping image, calculating the pixel color value, and carrying out image drawing and rendering in the scene. The overall illumination computer simulation processing method based on the photon mapping image is based on the principle of photon mapping, effect of a processed image is life-like, calculating and processing speed is high, and meshing is not needed. The overall illumination computer simulation processing method based on the photon mapping image is especially suitable for light treatment in complex scenes.

Description

technical field [0001] The invention belongs to the technical field of computer virtual image processing, and in particular relates to a computer simulation processing method for overall illumination based on a photon map. Background technique [0002] With the advancement of computer software and hardware science and technology, computer graphics has also developed rapidly and has been widely used in various fields. In many fields such as computer-aided design, computer simulation, scientific computing visualization, virtual reality, computer animation and entertainment, advertising production, film and TV synthesis, etc., the requirements for image quality are getting higher and higher, not only limited to being able to obtain images, but also It requires faster calculations, more realistic image effects, and sometimes surreal results. Especially in the field of natural simulation, there has been a strong demand in recent years. It is required to be able to simulate spec...

Claims

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Application Information

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IPC IPC(8): G06F9/44
Inventor 陈国庆白伟伟
Owner SUZHOU LIANGJIANG TECH
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