Multi-point light source illumination rendering method and device, computer equipment and storage medium

Abstract

The invention discloses an illumination rendering method and device for a multi-point light source, computer equipment and a storage medium, and relates to the technical field of image processing, the accumulation relation during illumination of reflection type point light sources is adjusted to be the coverage relation, the color tendency of dyeing type point light sources is determined according to the linear attenuation relation, overexposure and color chaos can be avoided, and the color rendering efficiency is improved. And the expressed light receiving effect is rich. The method comprises the following steps: determining a to-be-rendered pixel in a to-be-rendered scene, wherein the illumination range of the to-be-rendered pixel covers a plurality of target point light sources of the to-be-rendered pixel; interpolating the to-be-rendered pixel according to the attenuation coefficient of the at least one first point light source to obtain a first interpolated pixel; interpolating the to-be-rendered pixel according to the attenuation coefficient of the at least one second point light source to obtain a second interpolated pixel; and performing color accumulation on the first interpolation pixel and the second interpolation pixel to obtain a to-be-covered color, and covering the to-be-rendered pixel by using the to-be-covered color to obtain an illumination rendering result of the to-be-rendered pixel.

Description

technical field [0001] The present application relates to the technical field of image processing, in particular to a lighting rendering method, device, computer equipment and storage medium for multi-point light sources. Background technique [0002] In recent years, with the continuous development of image processing technology, both users and developers have higher and higher requirements for image quality. In many large models, there are thousands or even tens of thousands of point light sources, and each point light source has a different influence on each small model in the large model. Therefore, in order to improve the quality of computer animation and enhance its sense of reality, many The lighting rendering of point light sources has become a key point in image processing. [0003] In related technologies, when dealing with the illumination rendering of multi-point light sources, the Blinn-Phong (reflected light model) illumination model and exponential attenuatio...

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Problems solved by technology

[0006] In view of this, the present application provides a multi-point light source lighting rendering method, device, computer equipment and storage medium, the main purpose of which is to solve the overexposure of the model and the color confusion of the model that are easy to cause at present, resulting in the appearance of the model in the scene. The light receiving effect of the camera is single, and the picture is not realistic enough

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