View Full Version : Nuts & Bolts ?

11-27-2003, 01:05 PM
I did a quick search on this topic and came up with a couple of hits but was wondering if anyone else had used a similar teqinique to mine and had better results.

The bolt is modeled from an elongated disk with about forty-five segments. The cap is just scaled and repositioned points with a Boolean socket. The threads, which are my major concern, are simply a twist modifier. Here's my problem. As you will notice the threads take on a faceted look that I have been unable to remedy and the color value has a patterned candy cane effect to it.

Smoothing basically removes the threads. Subdividing, to my admittedly limited understanding of it, hasn't helped. Neither shadow map or ray traced shadow settings resolves anything. I played with radiosity, specularity, reflections, luminosity etc.

I'm really new to LW and would appreciate some help. Does anybody have any suggestions on this one?

Bolt link (http://www.geocities.com/nodosaur)

11-27-2003, 04:52 PM
Use Smoothing with a very low setting, like 10 degrees ( you can control the smoothing further, it's probably not neccessary here, but I have a tutorial (http://www.tobygaines.com/bevel.html) on it ) - it should take care of the odd shading as well

11-27-2003, 05:29 PM
Try Captian LW http://home.no.net/tbj69/Gallery/T01.htm

11-27-2003, 07:25 PM
Tobi, thanks for the suggestion and neat little tutorial. Although cutting the smooth angle down to between 10 and 20 degrees improved the look of the threads considerably I think that, at least within LightWave, using the twist modifier isn't the way to go. Riki, the tutorial using the lath technique was right on the money.

Thanks again :D