Subject:
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Re: Some secrets of MLCad revealed ...
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Newsgroups:
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lugnet.cad.mlcad
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Date:
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Fri, 4 Jul 2003 22:34:50 GMT
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Viewed:
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3470 times
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In lugnet.cad.mlcad, Michael Lachmann wrote:
> Ok since a lot of you are asking me to provide more details about MLCad's
> rendering technic I'll go and tell you some details about it:
>
> ...
>
> 2) Point reduction and Compression
> Inside the cached file MLCad maintaines a list of objects representing
> lines, triangles ... where each object stores all its points and parameters.
> After a while I found it much more practicable to compress this drawing
> information. Therefor MLCad can check the primitives after loading the file
> for its points and creates a list of points used in this file.
> If you check a file you will find a lot of equal points in there. Now each
> point is stored only once, and therefor now calculated only once during
> rendering. The primitive objects now refere to a point instead of carrying
> it.
>
> ...
>
> Regards,
> Michael
Thanks Michael.
Is the list of points sorted? How do you sort it? Hashcode? Octree?
Regards,
Damien
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Message has 1 Reply:
 | | Re: Some secrets of MLCad revealed ...
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| "Damien Guichard" <damien.guichard@wanadoo.fr> schrieb im Newsbeitrag news:HHIuq2.BMG@lugnet.com... (...) MLCad's (...) parameters. (...) file (...) each (...) carrying (...) No this list is not sorted at all, its just an array of points, directly (...) (21 years ago, 5-Jul-03, to lugnet.cad.mlcad)
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Message is in Reply To:
| | Some secrets of MLCad revealed ...
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| Ok since a lot of you are asking me to provide more details about MLCad's rendering technic I'll go and tell you some details about it: During the development of MLCad I went through several stages trying to make rendering faster, some of them with (...) (21 years ago, 4-Jul-03, to lugnet.cad.mlcad)
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