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Atari coding BBS
| Re: Triangle clipping? |
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Posted by: Symmetry
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May,19.2005-14:10
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Thanx!
Will eye it through later..
My plan is to go to s12.3 integer coordinates (that gets truncated at drawing to screen).
But gets atleast a bit "fractional" accurasy in the transformations...
Basic principle of SH i know ..a bit unsure how to get it to find the Intensityvalue at intersection (&later UV). I think i have heard that parametric lines can be used.... But there is also a neat "68K asm way" to find it using a short iterative method ("halfing method") but then im unsure if it can be used to find I/UV values aswell...
But my main consern about SH is that:
1st its Only 3 edges!!! ...is there no easier way?? ...2nd that these 3 edges needs to be checked agains 4 screen boundaries even if they only crosses one...
There must be a simpler way... (or?)
Im also unsure if it is a good thing to use when there is NO EdgeBuffers! ...everything has to be "on the fly" using registers... (is SH good then?)
Thanx again!
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[All messages in this thread] [Start new thread]
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Topic
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Posted by
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Date
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Triangle clipping?
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Symmetry of TNG
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May,19.2005-13:09
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Re: Triangle clipping?
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deez
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May,19.2005-13:33
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Re: Triangle clipping?
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Symmetry
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May,19.2005-14:10
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Re: Triangle clipping?
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earx
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May,19.2005-14:35
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Re: Triangle clipping?
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mikro
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May,19.2005-14:50
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Re: Triangle clipping?
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deez
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May,19.2005-15:51
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Re: Triangle clipping?
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ray
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May,19.2005-17:07
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Re: Triangle clipping?
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Symmetry
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May,19.2005-19:05
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Re: Triangle clipping?
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sqward
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May,19.2005-23:19
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Re: Triangle clipping?
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earx
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May,20.2005-10:22
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Re: Triangle clipping?
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ray
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May,20.2005-11:41
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Re: Triangle clipping?
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earx
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May,20.2005-12:13
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Re: Triangle clipping?
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Symmetry
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May,24.2005-21:11
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Re: Triangle clipping?
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mikro
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May,20.2005-21:01
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Re: Triangle clipping?
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earx
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May,21.2005-00:25
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Re: Triangle clipping?
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sqward
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May,21.2005-11:21
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Re: Triangle clipping?
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parapete
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May,20.2005-21:26
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Re: Triangle clipping?
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earx
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May,21.2005-00:43
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Re: Triangle clipping?
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sqward
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May,21.2005-11:17
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Re: Triangle clipping?
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Gizmo
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May,22.2005-18:09
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Re: Triangle clipping?
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Symmetry of TNG
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May,24.2005-20:05
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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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