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View Full Version : LW2015 Locomotive wheel constraint test



Snosrap
12-20-2014, 07:17 PM
I wanted to try and create a locomotive type constraint dynamic that was more inline with how they really work. With this one - http://forums.newtek.com/showthread.php?144814-LW2015-A-fun-little-test-of-constraints - the wheel was spinning and moving the piston rod, so I wanted to try the reverse. It works! :)



https://www.youtube.com/watch?v=y4qG4hYdSNg&feature=youtu.be

chikega
12-20-2014, 10:52 PM
Very cool Snosrap! It looks like all these dynamic constraints are going to be really useful. :)

3DGFXStudios
12-21-2014, 09:04 AM
Cool setup you got there!

The bullet constraints are really nice but apparently don't work with bullet soft. To connect soft to hard you need to add bones. It would be nice if there was a more simple solution for this type of constraints.
An other problem I ran into was that my spring constraints fall over all the time. Maybe I'm doing something wrong here but at least I couldn't figure out how to make it stop falling over. I tried to make a jack in the box so the spring constraint needs to be locked to the floor of the box but whatever I try it appears to have a hinge at the bottom.
An other thing I'm missing is directional forces. We have motors now but a simple directional force for making balloons go up in the air for example isn't there.
Except from that bullet looks pretty nice in 2015.

Snosrap
12-21-2014, 10:45 AM
I tried to make a jack in the box so the spring constraint needs to be locked to the floor of the box but whatever I try it appears to have a hinge at the bottom.

For that effect I'd probably just use a morph and a bend effector which have nothing to do with Bullet and have been around for years. :)


https://www.youtube.com/watch?v=4MI1ZTEa1uc&feature=youtu.be

3DGFXStudios
12-21-2014, 12:09 PM
I did it using sockmonckey and a weightmap. That works great as well.

Snosrap
12-21-2014, 03:05 PM
Oh yeah Sockmonkey an oft forgotten gem.