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Pantagrool
11-23-2013, 07:10 PM
... you know, like all those videos one sees on YouTube (http://www.youtube.com/watch?v=J9HaT23b-xc). Every tower I've made starts collapsing upon itself as soon as I hit play. The towers are made simply with the clone tool, and they're ostensibly rather sturdy. I set layer to 'Parts' of course, and have varied the distance between the blocks from very little to touching. I haven't fiddled with the settings too much, but thought that a squat building of bricks shouldn't just go >BOOM!<

Any quick tips would be appreciated

Cheers,
P.

pinkmouse
11-24-2013, 02:12 AM
You already have a thread open on this:

http://forums.newtek.com/showthread.php?138844-I-want-to-smash-up-a-tower-of-Jenga-sticks-with-Bullet

Pantagrool
11-24-2013, 11:47 AM
Yes, yes indeed I did. I thought that this type of question was better suited for the 'General Support' area of the forums ...

JoePoe
11-25-2013, 10:10 AM
Hey,

I do think this is the better spot to post your question. :)
So I'll respond here to what was started in the other one.

1) what happened when you tried "start sleeping" for the parts object as suggested? Seems like key advice.
2) Wish I could help you locate the example in the manual that Pinkmouse alluded to.

from the other post...

I'm looking at the LW 11.6 Addendum manual and there is indeed a tower example, but it uses Fracture, so it's not quite what I'm looking for.

I'm a LW version or two behind, so I have no idea where to find it, but can't you just ignore the fracture part and use your blocks parts object instead?

Okay, so now this thread is caught up.

Oh, also, found this tute (http://www.youtube.com/watch?v=2GpXLXJJrHY). It's pretty rudimentary.... but also, I guess, to the point.

pinkmouse
11-25-2013, 12:05 PM
Okay, I'm now completely confused. I thought this thread was in the other forum and vice versa... :D

Right, here's a quick test. I've used the glue envelopes as per the manual tutorial, and other than that, the only thing I've changed is Mass Distribution on the bricks to Vertices. I've enclosed the scene below.


http://www.youtube.com/watch?v=bj1MfPJ6r2o&feature=youtu.be

As with all Bullet stuff, start off with simple, low object count scenes. It's much quicker to get something simple working correctly, then scale up, rather than starting with something enormous that takes ages to calculate. The scene I've attached sims in real time as you drag the slider, so it's much easier to work out what's going on.

edit: Just managed to trash the scene I used for that movie above, but did a quick reconstruction, so it's slightly different looking, but the principle is the same.

Pantagrool
11-25-2013, 01:54 PM
Thanks, Pinkmouse. I totally dismissed the tower-in-the-manual explanation that you first guided me towards. (Now where the heck is that eating-crow emoticon?). How about this one? ---> :twak:

I ended up reading it last night and felt quite sheepish. I was just under the simple impression that you could just build it and smash it, but I guess it ain't quite that easy just yet!

P.

PS: Oh, and thanks, as always, to my local dawg JoePoe~!

JohnMarchant
11-25-2013, 11:51 PM
As a side topic, is it possible to save the simulation as an MDD or such. Ive seen you can save a preset but i dont want to keep running the sim everytime i load the scene.

If it is can someone explain it to me. not really got into bullet yet.

prometheus
11-26-2013, 12:24 AM
As a side topic, is it possible to save the simulation as an MDD or such. Ive seen you can save a preset but i dont want to keep running the sim everytime i load the scene.

If it is can someone explain it to me. not really got into bullet yet.

Yes..through the displacement tab, use mdd baker, Mr Rob Powers showcases this in this video..at the end aprox 11.24 in the clip...
http://www.youtube.com/watch?v=yqexUbvLTxg

You could probably use clothfx to scan the whole thing too.

Michael

JohnMarchant
11-27-2013, 12:20 PM
Thanks prometheus