Natural Selection 2 Open-Sources Its HLSL To GLSL Converter
Written by Michael Larabel in Gaming on 28 March 2014 at 11:28 AM EDT. 9 Comments
Following in the steps of Valve's kind actions towards open-sourcing some components that can help out game developers in going from Windows to Linux support (and Direct3D to OpenGL), the code used by the Natural Selection 2 game to translate from Microsoft HLSL to OpenGL GLSL shaders has been opened up.

This code translates Microsoft High-Level Shader Language (HLSL) shaders from legacy Direct3D 9 to OpenGL GL Shading Language (GLSL) shaders. The code that was opened up doesn't compile as-is but can be adapted to other game code-bases in a fairly easy manner. The OpenGL GLSL target at the end of the translation is for OpenGL 3.1. The code takes precautions to ensure that "clean" GLSL code is generated.

This code has been opened up on UnknownWorlds' GitHub. This isn't the first time we have seen an open-source HLSL to GLSL translator, but hopefully it will help some game studios, enthusiasts, and those learning HLSL/GLSL.

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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter or contacted via

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