HLSL2GLSL is a

command line A command-line interpreter or command-line processor uses a command-line interface (CLI) to receive commands from a user in the form of lines of text. This provides a means of setting parameters for the environment, invoking executables and pro ...

tool and a library that translates

shader In computer graphics, a shader is a computer program that calculates the appropriate levels of light, darkness, and color during the rendering of a 3D scene - a process known as ''shading''. Shaders have evolved to perform a variety of speci ...

s written in High Level Shader Language (HLSL) for

Direct3D 9 Direct3D is a graphics application programming interface (API) for Microsoft Windows. Part of DirectX, Direct3D is used to render three-dimensional graphics in applications where performance is important, such as games. Direct3D uses hardware a ...

into the OpenGL Shading Language (GLSL). HLSL2GLSL was originally released by

ATI Technologies ATI Technologies Inc. (commonly called ATI) was a Canadian semiconductor technology corporation based in Markham, Ontario, that specialized in the development of graphics processing units and chipsets. Founded in 1985 as Array Technology Inc., ...

under a

BSD License BSD licenses are a family of permissive free software licenses, imposing minimal restrictions on the use and distribution of covered software. This is in contrast to copyleft licenses, which have share-alike requirements. The original BSD lice ...

. The last release was v0.9 from 2006. HLSL2GLSL is not part of GPUOpen. The project was forked in 2010 to fix issues and add features like OpenGL ES support. It is now used by

Unity Unity may refer to: Buildings * Unity Building, Oregon, Illinois, US; a historic building * Unity Building (Chicago), Illinois, US; a skyscraper * Unity Buildings, Liverpool, UK; two buildings in England * Unity Chapel, Wyoming, Wisconsin, US; a ...

and

OGRE An ogre (feminine: ogress) is a legendary monster depicted as a large, hideous, man-like being that eats ordinary human beings, especially infants and children. Ogres frequently feature in mythology, folklore, and fiction throughout the world ...

to translate Cg/HLSL shaders into GLSL for mobile platforms. The project has been criticized for generating low-quality, bloated code. At the XDC2014, Matt Turner pointed out that many benchmark examples in Mesa's shader-db are generated by conversion and of poor quality..

References

External links

HLSL2GLSL Project Page

HLSL2GLSL Fork Project Page
AMD software ATI Technologies Free software Shading Software using the BSD license {{Soft-eng-stub