3D rendering method and device and engine

Abstract

The present invention discloses a 3D rendering method based on a DirectX Effect system. The method comprises the steps of S1 obtaining the shader parameter index values corresponding to the parameter values of objects in a 3D engine memory according to a preset mapping table when DrawCall is called to render the objects in a current picture, wherein the mapping relationship of the Effect parameter names of the DirectX Effect system and the shader parameter index values is recorded in the mapping table, and the parameter value of each object in the 3D engine memory has a corresponding Effect parameter name; S2 copying the parameter values of the objects in the 3D engine memory to a driving memory corresponding to the shader parameter index values. The present invention also discloses a 3D rendering device based on the DirectX Effect system and a 3D game engine.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a 3D rendering method, device and 3D game engine based on the DirectXEffect system. Background technique [0002] The 3D engine needs various rendering effects (Effects), such as basic effects such as directional light, point light, shadow, etc., and special rendering effects in games such as poisoning, freezing, and stealth. [0003] The bottom-level technology to achieve rendering effects is Shader, which is a program that runs directly on the graphics card GPU. Generally, the effect is composed of vertex Shader and pixel Shader, which are responsible for different functions of the entire rendering process. [0004] Shader's input includes vertices, textures and parameters. After the Shader program determines the function, users can change these inputs to display different screen performances. The vertices determine the shape of the rendered object, the textur...

AI Technical Summary

Problems solved by technology

The advantage of this solution is of course that it is flexible and can be modified if necessary. The disadvantage is that the development cost is relatively high, because the Effect file is a relatively complex description text, which is basically a simplified programming language, and it is difficult to explain.

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