 | | Re: Several replies to CLIPPING / WINDING
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(...) By candidate, I meant, someone could optiomize it, a place a 0 CLIPPING ON meta-command on it, and get some benefit. If you use enable clipping, but you have no graphic primitives in your file (assuming clipping is stryctly local), than you (...) (25 years ago, 20-Oct-99, to lugnet.cad.dev)
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| | Re: Several replies to CLIPPING / WINDING
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(...) NO, I said that, to be used when optimizing the existent files, not when rendering the optimized files. (...) I never said that ! (...) I think that depends on the host processor that you have and your specific graphics board (2D/3D) ;) (...) (...) (25 years ago, 20-Oct-99, to lugnet.cad.dev)
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| | [ldraw.org] Model of the Month
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I have just added the Model of the Month pages to ldraw.org. We're going to shoot for the first award being given for November. Entries are being accepted until Monday October 25, and voting will take place until Sunday October 31. The winning entry (...) (25 years ago, 20-Oct-99, to lugnet.general, lugnet.announce, lugnet.cad.dev.org.ldraw)
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| | Re: Object Orientation & DAT files & CLIPPING/WINDING
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(...) Yes the coded inversion is needed, for one big reason: The clipping-ready parts library must be compatible with non-clipping rendering programs, such as LDraw. So the inversions need to occur in the real commands, not in the clipping-extension (...) (25 years ago, 19-Oct-99, to lugnet.cad.dev)
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| | Re: Object Orientation & DAT files & CLIPPING/WINDING
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(...) <snipped stuff about INVERT> I think we're disagreeing about the meaning of 'strictly local'. As you describe the operation of INVERT, it is *not* local. The state of inversion is passed down the file-reference tree. This is not a local (...) (25 years ago, 19-Oct-99, to lugnet.cad.dev)
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| | Re: Object Orientation & DAT files & CLIPPING/WINDING
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Rui Martins wrote in message ... (...) I concur that WINDING is strictly local. It may be a struggle of words, but I wouldn't call INVERT *local* as it affects the behaviour all tris/quads in *subfiles* And I don't see why clipping should be local. (...) (25 years ago, 19-Oct-99, to lugnet.cad.dev)
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| | Re: Object Orientation & DAT files & CLIPPING/WINDING
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Rui Martins wrote in message ... (...) Part authors should define the tris/quad the way he finds best, easy and logical - maybe sometimes CW and sometimes CCW. Also when fixing old parts, just insert a lot of WINDING keywords in stead of editing the (...) (25 years ago, 19-Oct-99, to lugnet.cad.dev)
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| | Re: Object Orientation & DAT files & CLIPPING/WINDING [DAT]
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Steve Bliss wrote in message <380b3366.9260126@lu...et.com>... (...) No, you don't need to bother with the matrix. Use the 0 INVERT to tell the renderer: "Hey, please turn the following subfiles inside-out". Remember the example from stud2.dat: 1 16 (...) (25 years ago, 19-Oct-99, to lugnet.cad.dev)
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| | Re: Freeware LEGO Software in an German Computer magazine
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I promised to keep an eye on the server statistics on the LDraw web site now that the LEGO CAD programs were mentioned in c'T[1]. I didn't keep a close enough eye on the development, so one day of log files were lost due to a full /var partition. (...) (25 years ago, 19-Oct-99, to lugnet.cad.dev.org.ldraw)
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| | Re: Several replies to CLIPPING / WINDING
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(...) We both want the same thing, now we need to make everybody agree with us :) (...) I sort first by color and then by line type. I have everything pre-processed and I don't use glBegin()/glEnd() to render. (...) From my personal experience, (...) (25 years ago, 19-Oct-99, to lugnet.cad.dev)
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| | Re: Several replies to CLIPPING / WINDING
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(...) Sure, that can be done but there's the "0 UNKNOWN" or "0 DOUBLE-SIDED" case, and you'd have to send the triangles twice if you don't want to change the state. Leonardo (25 years ago, 19-Oct-99, to lugnet.cad.dev)
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| | Re: Several replies to CLIPPING / WINDING
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Rui Martins wrote in message ... (...) Wait a minute, you were not going to actually send winding state changes to the graphics engine? Simply keep track of the state yourself and send either vertices 1,2,3 or 3,2,1. The part author can use as many (...) (25 years ago, 19-Oct-99, to lugnet.cad.dev)
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| | Re: Several replies to CLIPPING / WINDING
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Rui Martins wrote in message ... (...) I am trying to find out when to actually start clipping. You say "every .DAT file which has tris or quads is a candidate for CLIPPING", but when can a program use that info? Would you require an unbroken chain (...) (25 years ago, 19-Oct-99, to lugnet.cad.dev)
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| | Anyone have an LDLite Mirror? (was Re: Clarification)
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My ISP suffered a disk crash, and was unable to restore my pages from backup. Has anyone been mirroring my site? (I know you're out there...the log files show about 16 complete snarfs of the whole site every month). Otherwise I'll have to upload a (...) (25 years ago, 19-Oct-99, to lugnet.cad.dev, lugnet.general)
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| | Re: Minifigure Torso Generator
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(...) -- Jonathan Wilson wilsonj@xoommail.com (URL) (25 years ago, 18-Oct-99, to lugnet.cad.dev)
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| | Re: Clarification
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Steve Bliss wrote in message <380b2e00.7878702@lu...et.com>... (...) I saw that too. I was hoping at the least there would be an alternate host for the program. (25 years ago, 18-Oct-99, to lugnet.cad.dev, lugnet.general)
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| | Re: Minifigure Torso Generator
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(...) If I'm not wrong, the password is modeling. Leonardo (25 years ago, 18-Oct-99, to lugnet.cad.dev)
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| | Minifigure Torso Generator
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Hi , at 17.10.99 Chris Dee wrote in a mail: CD> tracker ((URL) or CD> at least let me know as I have quite a few already drawn out ready CD> to code up. I did a few torsos, too. The old doctor, doctor with stetoscope and castle pattern with crossed (...) (25 years ago, 17-Oct-99, to lugnet.cad.dev)
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| | Re: Object Orientation & DAT files & CLIPPING/WINDING
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FIRST OF ALL my sugestion is that the CLIPPING, WINDING, INVERT are strictly local where they are used. CLIPPING is strictly local WINDING is strictly local INVERT is strictly local INVERT only means see referenced file as inverted. if INVERT is (...) (25 years ago, 18-Oct-99, to lugnet.cad.dev)
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| | Re: Object Orientation & DAT files & CLIPPING/WINDING
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(...) These are all assumptions/specifications which *should* be agreed upon by the L-CAD community, especially parts-authors and rendering program-writers. Agreement is only needed if we want to re-wire the parts library, to encourage (...) (25 years ago, 18-Oct-99, to lugnet.cad.dev)
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