Image rendering method and related device

Abstract

The present application discloses an image rendering method and a related device, by obtaining the low-resolution first shadow map and the high-resolution second shadow map of the target virtual object; and then determining the value of each texel in the first shadow map The first texel range and the center point; and based on the center point, the first texel range is scaled using a scaling factor to obtain the second texel range, and then the second texel range is rendered as a second shadow map to Target virtual objects for shadow rendering. In this way, the image rendering process based on the shadow map is realized. Since the calculation of the position of the map through the low-resolution map is small, the image rendering efficiency is improved; then the rendering of the high-resolution shadow map avoids the generation of edge aliasing and improves the image rendering efficiency. image rendering effect.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to an image rendering method and related devices. Background technique [0002] In many applications for constructing 3D virtual environments, the shadow display of virtual objects is an important means to improve the display effect of 3D virtual environments. [0003] Generally, in game rendering, the shadow map technology is usually used to calculate the shadow of the object in real time. First, the shadow map rendering is performed on the scene from the perspective of the light source, and the distance information from the object to the light source is stored. For each pixel, calculate the position of the light source, and compare it with the distance stored in the shadow map to determine whether the object is in the shadow, and then calculate the shadow of the object according to the shadow situation. [0004] However, since the shadow map needs to be rendered based...

AI Technical Summary

Problems solved by technology

When the complexity of the scene is high, that is, when there are a large number of objects and light sources, if the shadow calculation of the entire scene is performed for the light sources one by one, it will cause a huge amount of calculation and affect the rendering efficiency of the shadow; if partial sampling is used for shadow calculation, then It is easy to produce edge aliasing, which affects the rendering effect of shadows

Images