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A Fast Reflection Rendering Method Based on Multi-Camera

A multi-camera and fast technology, applied in 3D image processing, image data processing, instruments, etc., can solve the problems of inability to deal with dynamic scenes of deformed objects, inability to calculate in real time, etc., and achieve accurate and effective depth mapping of camera geometry proxy. Effect

Inactive Publication Date: 2016-08-17
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

None of these simulation methods can be calculated in real time and thus cannot handle dynamic scenes with deforming objects

Method used

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  • A Fast Reflection Rendering Method Based on Multi-Camera
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Embodiment Construction

[0037] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments of the present invention.

[0038] This method includes the following steps for rendering multi-camera reflection rendering effects:

[0039] Step (1) Given a scene S, render the scene S from the current viewpoint V, and record for each pixel p in the screen space

[0040] a. Diffuse reflection color value p.rgb d ;

[0041] b. Specular reflection p.s and smooth reflection mixing parameter p.g;

[0042] c. Normal vector p.n and position vector p.p;

[0043] d. Reflector logo p.r id ;

[0044] To the screen space geometry buffer (Geometry Buffers), apply the multi-rendering target object technology of the modern GPU graphics card, and the numerous record information in this step can be obtained with only one rendering. Among them, when the specular reflection value p.s is 0, it means an ideal diffuse emission object, and when it is 1, it means ...

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Abstract

The present invention relates to a multi-camera-based rapid reflection drawing method, which comprises the following steps: under the current viewpoint, directly draw the scene, obtain multiple rendering results, and cluster the rendering result pixels according to the normal line, respectively for each A traditional camera model is generated by clustering, and the entire scene is drawn according to the generated camera model, and finally the depth intersection operation is performed according to the drawn image proxy map, and the reflection effect is generated by mixing. This method greatly improves the rendering speed and efficiency by virtue of the powerful computing capability of the GPU.

Description

technical field [0001] The invention belongs to the technical field of real-time rendering, and in particular relates to an image space-based multi-camera calculation and a method for intersecting rays and image agents. Background technique [0002] Reflection plays an important role in computer graphics. It can not only reflect the aesthetic characteristics of objects, but also reflect the geometric relationship of objects realistically, making the scene rendering effect more realistic and convincing. Over the years, there have been many research directions for real-time reflection effect rendering, but there is no complete solution yet. These directions include: [0003] 1) Image-based drawing method [0004] This part of the method uses scene precomputed or pre-captured color data to calculate lighting effects. This classic image rendering method includes Hanrahan's light field method, S.J.Gortler's lumigraph method and P.E.Debevec's view dependent light field method. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T15/50
Inventor 王莉莉谢乃闻杨晨赵沁平
Owner BEIHANG UNIV