Cross-platform modularized shader language general integration method

Abstract

The invention discloses a cross-platform modularized shader language general integration method which comprises the following steps: defining the format and grammar of a macro definition analysis file, and creating the macro definition analysis file; creating a grammar parser Shader-X, and pre-compiling a shader file by using the Shader-X parser; analyzing the macro definition analysis file, generating a macro definition result set, and generating a macro definition result ordered list according to the macro definition result set; respectively calculating hash values of the ordered list of the macro definition results, generating shader files of the platforms corresponding to the macro definition results respectively according to the macro definition results, pre-compiling the shader files into binary files through a Shader-X analyzer, and marking the binary files through the Hash values of the macro definition results and the platforms; and locating and executing the binary file by the rendering program according to the hash value of the macro definition result ordered list and the platform. The same shader code can be used on different platforms, online compiling is not needed, a modular programming scheme is supported, and the shader programming efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of image rendering, in particular to a cross-platform modular shader language general integration method. Background technique [0002] Image rendering is the process of converting a 3D radiosity process into a 2D image. Scenes and entities are expressed in three-dimensional form, which is closer to the real world and easy to manipulate and transform, while most of the graphics display devices are two-dimensional rasterized displays and dot-matrix printers. From the representation of the three-dimensional solid scene to the representation of N-dimensional raster and rasterization is image rendering—that is, rasterization. The raster display can be regarded as a pixel matrix, and any graphic displayed on the raster display is actually a collection of pixels with one or more colors and grayscales. [0003] The shader language Shader Language currently has three main languages: OpenGL Shading Language based o...

AI Technical Summary

Problems solved by technology

[0008] The existing technology has the following defects: First, there are restrictions on the use of compiling GLSL into SPIR-V, that is, in the actual use process, the shader needs to set parameters according to the macro definition, so the shader program can only be defined according to the incoming macro definition Compile online to generate SPIR-V, and then decompile it into the Shader corresponding to each platform. This requires two steps of online compilation and decompilation, which makes the entire rendering process very time-consuming and often cannot be used directly in the rendering engine.

Second, shaders do not support the module import syntax of high-level languages ​​such as C / C++, which leads to the fact that when writing shaders, the underlying common code segments have to be distributed in each shader, which makes it difficult to maintain

Unable to achieve module versatility

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