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Re: Polygon Stippling

Hi,

> I've had problems rendering the polygon stippling example from the
> OpenGL Red Book on my iBook.

> I noticed that, when I use hardware acceleration, the result is a white
> rectangle. However, if I disable hardware acceleration (by disabling
> QuickDraw3D), the correct result occurs (a white box, a box with spiders,
> and a grey box). Unfortunately, rendering is painfully slow in that case
> (duh!).

> This happened whether I had OpenGL 1.1.2, 1.1, or 1.2 installed. Is
> this a problem with the video card on the original iBooks (or possibly
> just mine)? Or is there a special set of drivers I need?? Or is it that
> the Rage Mobility chip does not support that feature of OpenGL? Has
> anyone else noticed such a bug?

The Rage Mobility is a Rage Pro chip, and the Rage Pro's did not support
polygon stippling. The Rage128 and Radeon cards do fully support line and
polygon stippling. Sorry about that.

chrisb



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