Editing IRIS GL (section)

== Overview ==
IRIS GL was a graphics library for the [[IRIX]] workstations. Window creation and input were built in.

It provided special routines for handling 3D graphics, allowing the user to specify a [[3D projection#Perspective projection|3D transformation]], and then having it automatically be applied with every [[Vertex (computer graphics)|vertex]] passed in. Due to the lack of [[shader|programmable shaders]], [[shading]] is specified with many parameters including diffuse, specular, ambient, and emission.

There existed routines like <code>rect</code> that allowed a programmer to specify vertices from a more high-level perspective. 

The GL also had basic [[typesetting]] support using [[raster font]]s, and also support for [[NURBS]] curves<ref>{{cite web |title=Graphics Library Programming Guide |url=https://bitsavers.org/pdf/sgi/iris4d/007-1210-020_Graphics_Library_Programming_Guide_v2.0_May_1990.pdf |website=Bitsavers |publisher=SGI |access-date=12 April 2025 |date=1990}}</ref>