#466 glPointSize has no effect on radeon

Rendering Error
closed
Ian Romanick
ATI OpenGL (71)
5
2002-12-18
2002-08-26
No

The glPointSize opengl function call has no effect on
the size of points when they are rendered. Points are
always rendered as though the point size was set to 1.

The points are displayed correctly when DRI is disabled.

Driver: radeon-20020823-linux binary
Card: radeon DDR 64
X: 4.2.0

Discussion

  • Ian Romanick
    Ian Romanick
    2002-12-18

    • assigned_to: nobody --> idr
    • status: open --> closed
     
  • Ian Romanick
    Ian Romanick
    2002-12-18

    Logged In: YES
    user_id=423974

    This is not a bug.

    Before setting the size of the point using
    PointParameter{f,fv}, you must determine the maximum point
    size allowed by the implementation by calling glGetFloatv
    with pname set to POINT_SIZE_MAX. Please refer to the
    extension spec for ARB_point_parameters:

    http://oss.sgi.com/projects/ogl-sample/registry/ARB/point_parameters.txt