[visionegg] Re: openGL dot drawing problem

Gabriel,

As I learned from a similar experience as yours, support for antialiased
points is driver dependent. I found the details on this web page extremely
helpful:

http://homepage.mac.com/arekkusu/bugs/invariance/HWAA.html

As you can see, many of the ATI cards do not support point antialiasing.

The program "OpenGL Extensions Viewer" is also helpful when trying to figure
out what OpenGL features are supported by your driver:

http://www.realtech-vr.com/glview/download.html

Simeon


On 12/23/05, Gabriel Nevarez <nevarezg@xxxxxxxxxxxxx> wrote:
>
> Hello all,
>
> Should be a simple question (I hope).
>
> I have a script that involves the movement of various circular items.  I
> simply
> created my own Stimuli2D module based on the Target2D module, but using
> gl.glEnable( gl.GL_POINT_SMOOTH ) and             gl.glBegin(gl.GL_POINTS)
> to
> draw a circular point.
>
> This works fine for dots of any size on our PC and our G5 running Tiger,
> but
> when trying to run the very same script on an older Powerbook G4 Titanium,
> ATI
> 64 MB video, running Panther (10.3.9), the resulting circles come out as
> squares.
>
>

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