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Cartoon rendering undercut smoothing method

A delineating and smoothing technology, which is applied in the field of cartoon rendering delineating and smoothing, and can solve problems such as breakage

Active Publication Date: 2019-10-29
北京巴别时代科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if the model is some mechanical body and there are hard planes, the model needs to be smoothed to distinguish the normals of different planes for more realistic lighting calculations, and the hook will break at the edge of the two hard planes, such as figure 1 shown

Method used

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  • Cartoon rendering undercut smoothing method
  • Cartoon rendering undercut smoothing method

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Embodiment Construction

[0024] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0025] Examples like figure 1 figure 2 Medium hard edge model. Conventional edging methods will cause breaks at the corners. The advantage of using this patented method is that it can draw continuous outlines without affecting normal lighting. This is also mentioned in the introduction. The next step is the usual cartoon rendering, which will be described in detail.

[0026] Such as figure 1 As shown, the present invention provides a method for smoothing outlines in cartoon rendering, including:

[0027] Step S1, storing the normal of the completely smoothed model in the model data;

[0028] Step S2, generating outlines based on the normals of the completely smoothed model in the model data.

[0029] 3dmax software is ofte...

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Abstract

The invention provides a cartoon rendering undercut smoothing method, which comprises the following steps of: storing the normal of a completely smooth model into model data offline, and generating anundercut by using the completely smooth normal so as to achieve a smoother undercut effect. In addition, two sets of normal lines are stored in model data and are respectively used for undercut and illumination calculation. Through multiple sets of normal technologies, the smooth and continuous undercut effect in cartoon rendering is ensured, and meanwhile, the normal illumination effect is not influenced. The normal after the smooth group of the model is stored into tangent information of the model, and the geometric body surface is expanded outwards along the normal after the smooth group to generate a smoother hook edge.

Description

technical field [0001] The invention relates to a method for sketching and smoothing cartoon rendering. Background technique [0002] Cartoon rendering belongs to the category of non-realistic rendering and is mainly used in Japanese cartoon-style games. Outline is one of the key features in cartoon rendering, which has a great influence on the style of cartoon rendering. There are many methods of drawing lines. Japanese cartoons tend to use the method of expanding the back of the geometry along the normal line to draw lines. The effect of drawing lines is greatly affected by the normal line. How to make the normal line of the model is still a difficult problem. [0003] The existing delineation technology that expands the back of the geometry along the normal line, when the model is a round structure such as a human body, the smoothing group of the model is smooth enough, and the delineation effect will be ideal. However, if the model is some mechanical body and there are...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T15/00G06T15/02
CPCG06T15/005G06T15/02
Inventor 郑成俊汪林翰
Owner 北京巴别时代科技股份有限公司
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