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Valve Open-Sources Their Direct3D To OpenGL Translation Layer

Valve

Published on 11 March 2014 10:04 AM EDT
Written by Michael Larabel in Valve
11 Comments

With Valve's Source Engine originally just targeting Direct3D, when initially porting their games to Linux and OS X they relied upon a hand-made Direct3D to OpenGL translation layer. In potentially assisting other game developers, Valve Software has now opened up this graphics translation layer.

ToGL is the name of this latest Valve project that was open-sourced last night and taken from their Dota 2 source tree. This translation layer targets just a subset of Direct3D 9.0c and also supports translating HLSL byte-code to OpenGL's GL Shading Language (GLSL). ToGL also provides some SM3 support with multiple render targets but no vertex texture fetching.

Valve Open-Sources Their Direct3D To OpenGL Translation Layer


By itself ToGL won't do much but could prove to be useful for those porting their Direct3D engines to Linux. Whether or not it will be useful to Wine developers remains to be seen since their D3D9 support is now in relatively good shape. Valve has released ToGL under the MIT license.

ToGL can be found hosted at GitHub.com.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
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