Three-dimensional vector model real-time shadow deferred shading method based on controllable texture baking

Abstract

The invention relates to a computer application technology and the field of computer vision, and particularly relates to a three-dimensional vector model real-time light and shadow deferred shading method based on controllable texture baking. The method comprises the following steps: loading a whole large-scale complex model scene into a 3Dmax; calculating a visibility function of each pixel of the whole scene in terms of time, simplifying the visibility functions and then storing the simplified visibility functions into two colourful texture groups; calculating the average illumination of the time period in time domain; generating a faint shadow by utilizing shadows shaded by light source points on the time period; calculating light sources in the shadow information by virtue of a PCF (Photonic Crystal Fiber) method so as to obtain characteristics such as final visibility value. An offline shading method based on ray tracing and adjacent region sampling filtration blocking interval mapping technology are combined, the shadow generated according to the algorithm is more real, the sawtooth problem generated by a shadow mapping algorithm is overcome, and the application requirement of virtual reality is met.

Description

technical field [0001] The invention relates to the fields of computer application technology and computer vision, in particular to a real-time light and shadow delay shading rendering method for a three-dimensional vector model based on controllable texture baking. Background technique [0002] In photorealistic image synthesis, lighting and shadow are inseparable, they play a decisive role in the realism of the scene, and are one of the most critical technologies in realistic image generation. Appropriately simulating the lighting in the natural physical world not only allows people to perceive the existence of objects and understand the geometric properties of objects, but also allows people to know the material properties of objects. The shadow can help people judge the direction they are facing or judge the environment they are in and the information of the entity corresponding to the shadow according to the shadow. The generation of light and shadow greatly enhances th...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a real-time light and shadow deferred shading rendering method based on controllable texture baking of a three-dimensional vector model, which solves the problems of complex rendering in the prior art, too much time-consuming, and high requirements for computer configuration

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