Editing Graphics pipeline (section)

==Concept==
The 3D pipeline usually refers to the most common form of computer 3-Dimensional rendering called [[Polygonal modeling|3D polygon rendering]]{{Citation needed|date=September 2019}}, distinct from [[ray tracing (graphics)|Raytracing]] and [[Raycasting]]. In Raycasting, a ray originates at the point where the camera resides, and if that ray hits a surface, the color and [[computer graphics lighting|lighting]] of the point on the surface where the ray hit is calculated.  In 3D polygon rendering the reverse happens – the area that is given the camera is calculated and then rays are created from every part of every surface given the camera and traced back to the camera.<ref name="prince12">{{Cite web|url=http://www.connellybarnes.com/work/class/2016/intro_gfx/lectures/13-Pipeline.pdf|title=3D Polygon Rendering Pipeline|last=Lawrence|first=Jason|date=October 22, 2012|url-status=live|archive-url=https://web.archive.org/web/20161229102150/http://www.cs.virginia.edu/~gfx/Courses/2012/IntroGraphics/lectures/13-Pipeline.pdf|archive-date=December 29, 2016|access-date=2019-09-19}}</ref>