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Atari demoscene BBS
| Re: Doom floor texturing |
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Posted by: dml
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Jan,22.2013-10:48
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After a bit more thought I think it's possible to make that ^^^ nice compact non-wrapping tex lookup work with wrapping after all. It's difficult but seems like it can be done so I should look at it.
The textures would need to be doubled up to 2x2 (so 128sqr in my case) which is expensive but still much better than 256sqr which I think would be too much for this project.
The (xs/du)-u and (ys/dv)-v could be used to predict when the next wrap will occur before a sub-span is drawn and the sub span draws that many pixels plus some margin (but no more than the other axis' predicted wrap point so only 1 axis needs wrapped at a time). The u or v is then reset by one texture before the next prediction and drawing resumes.
Expensive setup involved but the 1/du stuff can be approximated with a lookup. Not sure about the rest yet - signed du,dv could be tricky. If it works it could be quite good for very long spans and when du/dv has favourable range.
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Topic
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Posted by
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Date
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Doom floor texturing
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dml
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Jan,21.2013-18:47
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Re: Doom floor texturing
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dml
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Jan,21.2013-18:48
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Re: Doom floor texturing
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dml
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Jan,21.2013-21:33
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Re: Doom floor texturing
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Defjam
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Jan,21.2013-21:44
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Re: Doom floor texturing
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dml
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Jan,21.2013-22:38
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Re: Doom floor texturing
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dml
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Jan,22.2013-10:48
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Re: Doom floor texturing
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mikro
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Jan,22.2013-11:03
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Re: Doom floor texturing
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dml
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Jan,22.2013-11:43
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Re: Doom floor texturing
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mikro
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Jan,22.2013-13:30
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Re: Doom floor texturing
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mikro
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Jan,22.2013-13:36
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Re: Doom floor texturing
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mikro
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Jan,22.2013-13:37
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Re: Doom floor texturing
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dml
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Jan,22.2013-15:18
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Re: Doom floor texturing
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mikro
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Jan,22.2013-16:22
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Re: Doom floor texturing
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dml
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Jan,23.2013-00:55
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Re: Doom floor texturing
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mikro
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Jan,23.2013-10:12
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Re: Doom floor texturing
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dml
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Jan,23.2013-13:00
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Re: Doom floor texturing
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Calimero
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Jan,24.2013-03:14
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Re: Doom floor texturing
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ggn
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Jan,22.2013-16:41
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Re: Doom floor texturing
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ggn
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Jan,22.2013-16:42
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Re: Doom floor texturing
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dml
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Jan,23.2013-01:07
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Re: Doom floor texturing
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dml
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Feb,03.2013-20:23
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Re: Doom floor texturing
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mikro
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Feb,03.2013-22:07
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Re: Doom floor texturing
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dml
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Jan,23.2013-18:01
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Re: Doom floor texturing
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mikro
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Jan,23.2013-23:39
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What's the anti-troll code?
That's your personal code to be able to add comments and messages on the dhs.nu site.
Don't have a code or forgot it? Fix it here.
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