Thursday, June 30, 2016

mathematics - Are there 3D projections other than orthographic and perspective?



The question is pretty much in the title. Are there notable 3D projections other than orthographic and perspective that could be used in a 3D system such as OpenGL?


In particular, are there any that have a particular use in game design?



Answer



Yes, To name a few:



The Pannini projection, for example, can capture wide fields of view in nice ways. (totally just my opinion)


I think implementation details would be beyond the scope of this specific question.





EDIT: Thanks for the comment, I did misspell Pannini. And to make this edit worthwhile here are a few more:



  • Paraboloid / Dual-Paraboloid (Useful for reflections, shadows, stained glass)

  • Equirectangular (Can produce a world map view of a sphere)

  • Spherical

  • Sinusoidal


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