Math and algorithms: Difference between revisions

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; [[Compute eye space from window space]]: Algorithm and shader code for taking window space positions and computing eye space positions from them.
; [[Calculating a Surface Normal]] : Required from the application by OpenGL for lighting calculations.
; [[Calculating a Surface Normal]] : Required from the application by OpenGL for lighting calculations.



Latest revision as of 23:48, 24 February 2012

Compute eye space from window space
Algorithm and shader code for taking window space positions and computing eye space positions from them.
Calculating a Surface Normal
Required from the application by OpenGL for lighting calculations.
ID-Buffer
A way to get the selection of the objects.
Trackball
Object rotation via a virtual trackball.