Scene dynamic shade and shadow realizing method

Abstract

The invention discloses a kind of scene dynamic shadow realizing method, which includes following steps: the shaded object list is generated; determines the attenuation range of the light source, and the shadow cone list correspondent to the light source to the shadow in the attenuation range of the light source; judges if the lightened object is in the vision field, if yes, it is scattered into object lattice with climax; pointing to the light source in the vision field, judges if the scattered object is in the attenuation range of the light source, if no, doesn't carry on the calculation; if yes, calculates the illuminance of the object lattice which is not in the shadow cone in the attenuation range. The invention can be applied to the false 3D game, it can upgrade the illuminance accuracy, improves the image quality of the scene.

Description

technical field [0001] The invention relates to a pseudo 3D scene dynamic light and shadow technology, in particular to a scene dynamic light and shadow realization method using the vertex lighting technology. Background technique [0002] At present, video games, especially pseudo-3D games (games with a 45-degree viewing angle), generally use scene dynamic light and shadow technology to make game players produce visual effects that are as immersive as they are in the real world. The dynamic light and shadow technology is a technology used in the game to determine the appearance of the surrounding environment according to the light source, and is one of the tools used by game developers to make players more involved in the game. For example, launch a rocket into a dark place, and as the rocket moves forward, it will light up the hallway. And when the rocket passes, these illuminated areas return to their original brightness. The scene dynamic lighting technology first cons...

AI Technical Summary

Problems solved by technology

[0005] 1) The calculation is complex and the lighting speed is low. Since the current area is first divided into fixed horizontal lighting grids and the brightness of each grid is calculated, the calculation amount is too large, resulting in a decrease in calculation speed and limited real-time performance

[0006] 2) The lighting accuracy is low. Because the object grid is illuminated according to the brightness of the horizontal fixed grid, that is, the lighting accuracy depends on the size of the horizontal fixed grid. Considering the problem of computing speed, the horizontal fixed grid is usually thicker to reduce the amount of calculation , resulting in limited lighting accuracy

[0007] 3) The lighting accuracy is not easy to adjust. Since the current area is divided into a fixed-size horizontal grid, adjusting the grid size of the illuminated object cannot improve the lighting accuracy.

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