Texture download question

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Scott McMillan (scott++at++ht.com)
Tue, 23 Sep 1997 11:16:14 -0400 (EDT)


I think this has been discussed before, but I can't seem to find the
answer anywhere....so any pointers are greatly appreciated.

I am running perfly with a model that loads in 15 textures of the
following sizes (along with the Performer reported download stats)

12 textures ++at++ 256x256 -> 1/8 MB (26 pages) each
 2 textures ++at++ 256x512 -> 1/4 MB (47 pages) each
 1 texture ++at++ 512x512 -> 1/2 MB (91 pages)

Obviously perfly is defaulting to 16bit texels.

Anyway this amounts to 2.5MB of textures (497 pages), and if I apply
the 4/3 rule for mipmapping, this results in 3.3333MB of texture
memory which should be well within the limits of my 4MB limit on the
High Impact with TRAM Option Card.

When I look at the Gfx stats in perfly it is showing continuous
texture downloads:

    texture downloads: avg. loads 3.0 Kbytes: 524.286
              (total loads: 0.0->84.0 Kbytes: 0.0->14xxx.xx)

Could someone tell me why this might be happening? Is there a page
limit that I am exceeding? etc... RTFM pointers are gladly accepted.

Thanks in advance,
scott

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