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Tesseract FPS.jpg
GenreFirst‐person shooter
Latest release2014-05-12
Release date2014-05-12
DeveloperLee Salzmann[1]
Code licensezlib
P. language C++
Tesseract is a free game. This means that the source code is available to be studied, modified, and distributed. Most projects look for help with testing, documentation, graphics, etc., as well.
Available as a package in:  
OpenSUSE Logo.svg OpenSUSE: tesseract

Tesseract is a fork of the Sauerbraten engine. It adds dynamic rendering techniques based on deferred shading and shadowmapping.[2]

It provides a bunch of new rendering features such as:

  • deferred shading
  • omnidirectional point lights using cubemap shadowmaps
  • perspective projection spotlight shadowmaps
  • orthographic projection sunlight using cascaded shadowmaps
  • HDR rendering with tonemapping and bloom
  • real-time diffuse global illumination for sunlight (radiance hints)
  • volumetric lighting
  • transparent shadows
  • screen-space ambient occlusion
  • screen-space reflections and refractions for water and glass (use as many water planes as you want now!)
  • screen-space refractive alpha cubes
  • deferred MSAA, subpixel morphological anti-aliasing (SMAA 1x, T2x, S2x, and 4x), FXAA, and temporal AA
  • runs on both OpenGL Core (3.0+) and legacy (2.0+) contexts


External Links[edit]