Computerized real-time sketch rendering system and algorithm

Abstract

The invention discloses a computer real-time sketch rendering system in the field of computer technology. The computer real-time sketch rendering system is composed of a scene data file module, a rendering engine, an input module, a contour detection module and a three-dimensional model generation module. The invention also provides A computer real-time sketch rendering algorithm, S1: detect and split the contour line; S2: perform linear convolution calculation on the contour line; S3: recalculate the pixel value of the pixel point; S4: produce the scene texture map in the three-dimensional space ; S5: Contour line overlay effect texture map; S5: Mixed contour line and texture rendering, the present invention uses chi-square equation to calculate the distribution of line weight to solve the problem of computer drawing lines inflexible, and uses multiple rendering technology to solve the problem of linear convolution noise algorithm for lines For the problem of poor simulation of superimposed effects, the present invention adopts the method of rendering three-dimensional scenes to textures for post-processing, and realizes efficient real-time rendering.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a computer real-time sketch rendering system and an algorithm thereof. Background technique [0002] Non-photorealistic rendering is a graphics rendering technique dedicated to producing different hand-drawn artistic styles. At present, the non-photorealistic drawing technology has made great progress in simulating sketch, oil painting, watercolor painting, pen drawing, printmaking, etc., among which sketch painting is a kind of pigment with pencil or solid mineral as pigment, on unspecified paper, with light and dark Mainly, it combines lines to express three-dimensional effects. The difficulty of computer rendering mainly lies in how to simulate hand-painted outlines and stroke art. This field has always been one of the research hotspots of non-photorealistic rendering technology. [0003] In outline drawing, due to the accuracy and uniformity of computer-drawn lines, compar...

AI Technical Summary

Problems solved by technology

In order to solve the problem of stylized rendering of lines, the method of image segmentation is used for rendering and drawing, but it still cannot get rid of the over-precise and uniform nature of the lines, so it is only suitable for simulating stick figures

Considering the continuity, width, alpha value change and other attributes of the outline to draw the outline, the drawn outline is more vivid, and the style effect of the hand-drawn line is achieved to a certain extent, but due to the outline of the sketch drawing has a disconnection Continuity and overlap, this method is not suitable for sketch style rendering

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