Hi guys. I'm really hoping that I've got a bad setting or something... but... MANY of my simple 3d boolean creations have seriously flawed math used to create them. Something as simple as one cylinder placed inside another slightly larger one (like the inside of a bronze medal or something) and corners are flying out at 0 degrees like mad. Or, throw a negative elongated sphere into the SIDE of a positive box and boom - spider webs cross the opening. Please tell me I have a setting like "[ ] Use non-intel floating point math to calculate 3d booleans" not turned on. =) Any help would be greatly appreciated. For those who, appropriately, like to ask "uhm - what are you trying to DO anyway?" I'll answer that I've got a TON of tools - but I want to use Carrara to create 3d objects to export (or keep) for other tools. Bryce is REALLY wonderful at boolean shapes - but ya can't export those things - just terrains. Thanks all. -Jim Gale

LOL! Damn that Intel floating point math! Although I don't think that they have had a prob with is since the 486 :) Unfortionately this is a bug in Carrara :( I'm sure that someone will chime in with a work around for it here in a bit...but if at all possible, avoid booleans at any cost in Carrara...Hey, at least its not crashing when you use them :) I can already see kaom's reply to this one...get ready for the Rhino pitch :) ... he's awesome with it! Jared

Sorry, just wondering...is that a razor blade that you're working on? I'me just going by the cutouts.

Actually yes (I guess it's a good start if you can tell without anything but the cutout) - that's intended to be a steel razor blade (rather than the silk/gummy-bear razor blade that Carrara makes it to be). Thanks for the response!! -Jim Gale

Hmm......... Maybe the next patch for Carrara will address this. Or you could just buy Rhino and end all these troubles.LOL You were right rockjockjared, I love to pitch Rhino for the modeler that it is, I truly love it.********* Are you using primatives to do your booleans? Or are you using spline objects, and what are setting the quality to? I wish I had a simple answer for you. You know who might have the answer you need? MarkBremmer, that guy is a genius with a Carrara, and litst might know something we don't about this. hang in there, I'm sure someone will have an answer better than anything I can come up with. Or again just get Rhino, I'm kidding, no maybe I'm not.heh And your right, at least Carrara doesn't crash on these anymore, isn't that a nice feature. Let's give eovia a big roung of applause, for trying to sve our friend Carrara, there will be a solution, don't give up! Hey rockjockjared, when do we get to see that Ford your working on? I need some inspiration, I can't wait to see it. kaom

The bollens in Bryce are a different operation, they only "hide" areas that are subtracted & don't cut them out. In C, you need to have a high quality setting in order to have enough faces & vertices to work with. The flat blade area will only have a couple to work with & that's part of the problem. There is some info at the egroups site (archives) that Antoine put together regarding booleens with C.

Kaom...the ford will be done eventually...I haven't had too much time to actually work on it with the band and other projects going on :( but it will get done, maybe not today, maybe not tomorrow, but soon and hopefully within the next couple of months! I'll be posting a wip when I finally get most of the kwirks out of the body...i've had to start over a couple of times...since then I have been saving as I go so that I can just go back rather than scratch the whole thing. It's a long and on going process, but I promise that Renderosity community will be the first to see it when i'm done! Hell, I'll even message you to let you know it is up :) Jared

Hi Jim, Booleans are problematic in any 3D software. In Carrara you have the luxury of choosing between different modellers to avoid booleans if possible. The razor blade is a good match for the spline modeller. If desired, after the spline operation, you could convert it to a vertex model to sharpen the cutting edge. Let me know if you need an example of of any of these suggestions. Mark

Mark : Actually, I would appreciate an example or pointer to a tutorial to make sure I get the steps right. thanks!

Jim, Actually it can all be accomplished in the spline modeller if you want. I just made 1 cross section with a compound path for the hole in the center and repeated it along he extrusion path. Then, on cross section 2, released the compound path, selected the control points on the cutting edge portion of the blade and moved them downward and reactivated the compound path. Bada-bing, bada-boom, razor blade. Now this makes sense to me but it doesn't mean I explained it well. Let me know if I need to be clearer. Mark

I made one just the way Mark descibed awhile back