 | | 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: 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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| | Re: Several replies to CLIPPING / WINDING
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(...) In fact you can, use as many as you like, but that it's not the goal. if you read my previous mail, following this one I'am replying, you got the ideia that no WINDING meta command is the ideia, if the .DAT is well optimized. If someone want's (...) (25 years ago, 18-Oct-99, to lugnet.cad.dev)
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| | Re: Clarification
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(...) It should be at (URL), but all I see there is an empty directory. Maybe Paul is doing some housecleaning? Ah. The explanation is here: (URL). Steve (25 years ago, 18-Oct-99, to lugnet.cad.dev, lugnet.general)
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| | Re: Minifigure Torso Generator
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Sometimes, it pays to be first. ;) Steve (...) (25 years ago, 18-Oct-99, to lugnet.cad.dev)
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| | Re: Several replies to CLIPPING / WINDING
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(...) I understand that you would be allowed to have as many "0 CCW"/"0 CW" lines as you want. This will hurt performance and of course, it would be better if you could use only 1 call per part. (...) You don't need to do that with LDraw files, (...) (25 years ago, 18-Oct-99, to lugnet.cad.dev)
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| | Object Orientation & DAT files & CLIPPING/WINDING
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There has been a great discussion, about the optimizing with clipping topic, but it seems IMHO that people are forgetting simplicity is the best. Now if you read the subject of this message, maybe you know what I am talking/writting about. we must (...) (25 years ago, 18-Oct-99, to lugnet.cad.dev)
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| | Several replies to CLIPPING / WINDING
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R> If you keep changing states (turning backface culling on/off or R> changing front faces from CW to CCW) very often, you'll get a *slower* R> rendering in OpenGL (don't know about D3D). And remember that in a R> couple of months nVidia's GeForce (...) (25 years ago, 18-Oct-99, to lugnet.cad.dev)
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| | Clarification
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I need to know where the download site is for LDLite, not where it is on my computer! (25 years ago, 18-Oct-99, to lugnet.cad.dev, lugnet.general)
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| | Re: Minifigure Torso Generator
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Chris: Thanks for the info. During this week if i have time i should be working with the Xwing mechanic torso and a few others from older sets. I would soon post all the models on a web page so ppl can d/l them. What do i have to do to submit parts (...) (25 years ago, 18-Oct-99, to lugnet.cad.dev)
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| | LDLite
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Where is it? My computer crashed and now that is all I am missing for my "virtual" models. Any help would be appreciated! (25 years ago, 17-Oct-99, to lugnet.cad.dev, lugnet.general)
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| | Re: Minifigure Torso Generator
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(...) This looks a pretty good way of doing the more complex torsos quickly (I assume it is quicker than the manual method), although I have got pretty quick at doing primitive-based versions, once I have drawn them up on graph paper. I have (...) (25 years ago, 17-Oct-99, to lugnet.cad.dev)
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| | Re: Next MLCad Release
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(...) For the benefit of all LEGOcad developers, here's the URL's.... Here's the specs for trueSpace3 (URL) (25 years ago, 16-Oct-99, to lugnet.cad.dev)
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| | Re: Minifigure Torso Generator
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Wow! I had no idea my extremely mocked-up program is still being discussed. /Tore (...) (25 years ago, 15-Oct-99, to lugnet.cad.dev)
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| | Re: Hidden surface removal, and vertex order in part/primitive DAT files
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(...) Ok, I can announce that my code actually orient ~10000 faces of 2560, BUT 4. In a previous version, 40 faces remain unoriented. After I checked all distances between the ~12000 of the part, I have discovered that some distances were very (...) (25 years ago, 15-Oct-99, to lugnet.cad.dev)
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| | Re: Next MLCad Release
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(...) Er, how about make this an option... The crosshairs on the rotation center, the geometric center, or no crosshairs at all. I find the crosshairs to be cumbersome most times, especially with small parts like a 1x1 plate or tile. On the subject (...) (25 years ago, 15-Oct-99, to lugnet.cad.dev)
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| | Re: Minifigure Torso Generator
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Do you mean the mechanic in the X-wing set? The X-wing pilot torso has been done. General feedback on your torsos: I agree with Steve that these are pretty good for patterns based on scans. They do come out quite large (the police torso would be the (...) (25 years ago, 15-Oct-99, to lugnet.cad.dev)
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| | Re: Minifigure Torso Generator
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(...) Actually i am not creating my torsos Pixel by pixel. I created a program that would draw horizontal lines of increments of .1 ldraw units of the same color. That way files are smaller. Noel (25 years ago, 15-Oct-99, to lugnet.cad.dev)
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| | Re: Minifigure Torso Generator
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(...) Your torsos look pretty good, for rasterized decorations. There has been a lot of discussion about raster parts vs. primitive-based parts. Do a search in (URL) for BMP2DAT to see some of the previous posts. Steve (25 years ago, 15-Oct-99, to lugnet.cad.dev)
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| | Re: CW/CCW, vertex sequence, co-planar, convex
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(...) Disagree. Being able to turn clipping on and off separately from specifying the direction of winding is a functional difference, not 'syntax sugar'. (...) OK. Steve (25 years ago, 15-Oct-99, to lugnet.cad.dev)
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| | Re: Next MLCad Release
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Give meeee .... Charles Seyferth wrote in message ... (...) somewhere. (...) (25 years ago, 15-Oct-99, to lugnet.cad.dev)
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| | Minifigure Torso Generator
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I have develped a program that can generate Minifigure torsos based on a BMP of the torso. I have posted to of my torsos in the lugnet.cad.dat.parts, I will appreciate feedbak. I also was wondering what do i have to do to submit these part to the (...) (25 years ago, 15-Oct-99, to lugnet.cad.dev)
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| | Re: Next MLCad Release
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(...) Hmmm.... I've got the file specs for the trueSpace format (.COB) somewhere. Wanna' take a look at 'em, Michael? Charles (25 years ago, 15-Oct-99, to lugnet.cad.dev)
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| | Re: Next MLCad Release
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(...) Your *models* say you're a big rotation fan...who cares about what you say ;) (they just rock) -Tim <>< (URL) timcourtne ICQ: 23951114 Bumper Sticker: 'I'd punch you in the face, but [poo] splatters.' (25 years ago, 14-Oct-99, to lugnet.cad.dev)
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| | Re: Next MLCad Release
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(...) First a bit of 'fan mail': Thanks beyond words, Michael! As an old{er|ish} <grin> AutoCAD/CASE tool user, I can appreciate the amount of work you've put into your tool-set already. I've found what are a -few- nits in it use (to me, at least; (...) (25 years ago, 14-Oct-99, to lugnet.cad.dev)
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| | Re: Next MLCad Release
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(...) These would be great additions. It also needs (please please :-)... - Relative piece rotation. It should be easy to do this without knowing the previous rotation values, isn't it just a matrix multiply? - Put the little "current part" (...) (25 years ago, 14-Oct-99, to lugnet.cad.dev)
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| | Re: Blue Hopper Car Mania...
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(...) Right, it's inaccurate. A better name Would be "Technic Pin 1/2 with Stud". That would match up with part #6587, Technic Axle 3 with Stud. Steve (25 years ago, 14-Oct-99, to lugnet.off-topic.fun, lugnet.cad.dev)
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