I'm upgrading my webgl renderer program Brigl to work with the latest version of Three.js (the 3d engine i use).
I've found a bitter suprise: they deprecated the Quad primitive (Face4). Now the whole library only deals with triangles (Face3).
I relied to quads for my smoothing algorithm, and everything broke

So my algorithm worked like this: if two faces have a conditional line on the common edge, that means the faces should be smoothed. Smoothing means averaging all normals (per-vertex face normals) at each end of the conditional lines.

I've adjusted for the Face4 removal in the simplest way: by adding two Face3 composing the quad. But now it happends that if i have two quad connected by a condline, only two of the four triangles are affected, the other two staying unsmoothed, effectively creating a zigzag pattern. You can see it here:



Do you have any idea on how i could correct this issue? I tried to keep track of triangle pairs forming quads, but i couldn't manage to restore a working solution.
Eventually i could move all smoothing code to BEFORE generating the 3d mesh, that is while still working with plain ldraw objects (quads and tri), but it looks like an huge amount of work..

Hi all lego fan

I search in data base about this part 11291 Front 4X3X2/3 W. Bow , and i did not found complete part into.

I would share two Moc using it, but without this part you should understand it's not right...
So if a modeler can help us by creating it, it's will to be very great!

appologies about my vocabulary, i'm a french guy.

See you

Someone just posted the following to a local LUG mailing list I'm subscribed to (emphasis added):

Quote:Thinking about it, I can remember what derailed my learning LDraw/Mcad/ et al... it was the parts management system… [T]he hundreds of variations with a surface graphic made the whole stack completely unmanageable.

Hello,

I'm trying to write simple program that parse .dat files and build tree representation of LDraw model in memory. I have problem to read some sub file references. For example line:

Hi all,

I'm playing around with making the difference between plastic and e.g. rubber parts visible in LDCad.

I've found some nice OpenGL material references but was wondering if there is some kind of 'standard' floating around. Especially for determining the diffuse, ambient and specular components based upon the single rgb supplied in LDConfig.ldr

Up to now I'm using the rgb for both diffuse and ambient, and have a static specular of 1,1,1 and shininess of 128 (which is more appropriate for chrome I'm realizing now).

I'm doing this with the standard lighting model (not shaders) for now (LDCad runs on OpenGL as low as 1.1), so I only can play with the base four components for now.

Is there a reason why we don't include the inner-bottom (where it connects with the adjoining part) edgeline on stud4fns's? At least the part I've been using recently (stud4f4s) doesn't include this line, meaning I have to add it individually for each stud, which is a pain and clutters up larger parts which use lots of them. Was this an oversight? If I were to update and resubmit this primitive, would anybody have a problem with it?

Hi all,

I've seen that MagFors has been busy working on some Iron Man parts :-)

I noticed that on the image for set 76007 (Iron Man : Malibu Mansion Attack) that the visor appears to have a hinge. Is that correct? How does the hinge mechanism work?
See images here:
http://www.flickr.com/photos/thebricktime/8459856541/
http://www.flickr.com/photos/porschecm2/8519272619/

BTW I recently rendered an Iron Man using POV-Ray...
http://www.pearse.co.uk/lego/images/ironman_3d_1024.png
A copy of the LDraw file for this figure is available here:
http://www.pearse.co.uk/lego/models/ironman/


I found Captain America's shield here:
http://www.ldraw.org/cgi-bin/ptdetail.cg...902p02.dat
Is anyone working on any other Captain America parts?

One final question - what is the correct hair part for Tony Stark?

Bye for now

Reuben
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Download 3D Lego models and other resources from:
http://www.pearse.co.uk/lego
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Hey,

there are a lot of LEGO bricks that are available in the LDD, but not in LDraw. I created a list that compares the design-ids known in the LDD Brickset 1128 with the part-numbers that are currently available in the official LDraw Parts Library (up to update 2013-01) and with the part-numbers that are currently on the Parts Tracker (Server time: 2013-08-22 10:11).

The LDD uses pure numeric design-ids but LDraw sometimes has numbers with an alphanumeric appendix. To compare these two (three) lists I used the following regular expression:

Hi, is it possible to put a background image on MLCad views ? It would be useful for tracing an object while keeping proportions and such, as in many 3d editors (see for example blender).

I am still discovering the programs that are present for all users.
Recently i read a lot of the program quad2dat.
But i am unable to find/download this.
Does anyone else know a solution to have a picture of a part and convert this to MLcad usable file?