Re: Incorrect Texture Mapping on RE
John W. Barrus (barrus++at++merl.com)
Tue, 3 Oct 1995 13:47:10 -0400
At 8:34 AM 10/3/95, Scott Watson wrote:
> >> This sounds like the IRIX 5.3 texture repeat bug on Reality
> >> Engine. Basically, texture repeat counts greater than 4 bits
> >> (15) would smear badly. I believe there's a Patch for it now.
> >> I don't know the number though. Sharon Clay diagnosed this bug
> >> for me months ago. Sharon explained that exceeding 4 bits of
> >> repeat invokes an exception in the RE microcode ... that is
> >> broken in IRIX 5.3. Also, even with the patch, this condition
> >> draws slower.
>
>HOW MUCH SLOWER (fill?) is more than 4 bits of repeat?
>
> lelkins> It just so happens that I've been cussing myself for the
> lelkins> last couple of days trying to solve a repeated texture
> lelkins> problem, thinking it was my fault... Would someone happen
> lelkins> to have to patch number handy?
>
>Hey - we could really use this too. I thought we had a modelling
>problem...
>
>-Scott
We see the problem also on big polygons that use a repeated grass texture.
Where do I get a patch? This is causing huge problems for us when we give
demos and make videos.
John B.
-------------------------
John Barrus Research Scientist
Mitsubishi Electric Research Laboratories, Inc. voice 1.617.621.7535
201 Broadway fax 1.617.621.7550
Cambridge, MA 02139 barrus++at++merl.com
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on Mon Aug 10 1998 - 17:51:56 PDT