Thread Tools
This thread is privately moderated by Jack Crossfire, who may elect to delete unwanted replies.
Sep 07, 2014, 01:15 AM
Registered User
Jack Crossfire's Avatar
Thread OP

OpenGL shading lives

Tried apt-get freeglut3-dev on the mac & it showed the OpenGL shading language extension was there. After a few segmentation faults & another round of hardening bcpbuffer, the mac did the OpenGL business, 60fps with it on & 44fps with it off. There might be a bit somewhere limiting it to 60fps. It was doing 120fps, decades ago. A 60fps limit may have been added to simplify video programming.

It wasn't tried on anything besides NVidia since 2005. Getting it to work on Nvidia required using NVidia's own header files, but at least they complied with the OpenGL spec. ATI was their only competitor at the time & they only supported the OpenGL ARB extension. It would have taken a 2nd branch to support ATI. ATI did nothing to support shading in the standard Linux base.

Decades later, Intel took the laptop market from ATI & got it done. The shading language was finally included in the Ubunt header files, & Intel finally exposed shading in OpenGL.
Sign up now
to remove ads between posts

Quick Reply
Thread Tools