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Border support on rage pro & 128?



Hi, I am just starting out with OpenGL and was building a model when
I noticed that the edges faded to a white-ish color. I figured I'd use
border pixels so that linear interpolation would have something to
interpolate to. But I read a page on the net that said borders aren't
supported on many cards and may run in software extremely slowly. Are
they supported on the rage pro & 128 (and possible the II or whatever's
in the iMac Rev. A)? If they are not, I can use a 64x64 texture but only
set my coordinates to go from 1/64 to 1-1/64 so that the first and last
row go for interpolation, but it seems like much more work.
One other tiny question: when I go to render somewhat large
polygons, I see all these artifacts at the edges of the screen. A good
example of this is drawing a glut sphere and watching the poles dance
around as you rotate it around the screen, especially if you are inside
of the sphere. I feel terrible asking this...I searched back through at
least 1000 messages but couldn't find a meantion of it. I am using an
iMac 350 with rage 128, so I thought I'd be immune to these problems, ha
ha. I saw Carmack meantion a problem on the rage pro with mipmapping,
where the wrong texels were used on a mipmap (Nov. 30, 1999). But I am
not using mipmapping yet, just linear, and no lighting. Thanx for your
time,

Zack Morris
Z Sculpt Entertainment
email@hidden
http://www.zsculpt.com

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