What are reserved variable names in GLSL?

satya - Mon Jul 23 2012 15:22:41 GMT-0400 (Eastern Daylight Time)

GLSL built-in variables, ex: gl_position

satya - Mon Jul 23 2012 15:23:44 GMT-0400 (Eastern Daylight Time)

aha found it: here is the spec link

satya - Mon Jul 23 2012 15:24:13 GMT-0400 (Eastern Daylight Time)

No user defined variable may start with 'gl_'

satya - Mon Jul 23 2012 16:15:42 GMT-0400 (Eastern Daylight Time)

Vertex shader special output variables

satya - Mon Jul 23 2012 16:16:33 GMT-0400 (Eastern Daylight Time)

couple of examples


gl_position
gl_pointSize
etc.

satya - Mon Jul 23 2012 17:12:52 GMT-0400 (Eastern Daylight Time)

built in input variables


gl_vertex
gl_color
etc..

satya - Mon Jul 23 2012 17:13:22 GMT-0400 (Eastern Daylight Time)

how do you pass built in input variables in opengl???

satya - Tue Aug 14 2012 16:41:15 GMT-0400 (Eastern Daylight Time)

See this link about compatibility and errors