#Dominoes
9 messages in this thread
#Dominoes — declared parent_msg_num=(none), resolved parent_id points to #(none)
Does anyone know how to make dominoes, placed in a row, fall down in a chain
reaction? I've tried doing it with Key Factory for a few days and couldn't get
it to work with more than four dominoes. (I have DMM, but I don't think it can
be used for that problem).
My latest approach was to use boxes with the pivot at the bottom and locked X,
Y and Z axes. I tried many settings for the parameters (elasticity, drag,
friction, mass, gravity, . . . ).
When using gravity, I placed the dominoes on a large, thick box.
Thanks. Ed K.
#196512-Dominoes — declared parent_msg_num=196512, resolved parent_id points to #196512
Ed:
I know a student who wanted to make such an animation, even a little more
complicated, because the path the dominoes described was going upwards in a
spiral.
My tip for him was to animate the first and the second domino with accurate key
timing (of course it's best to place the pivot at the bottom front, as your
latest approach was). As the next thing I proposed to copy tracks to the
following dominos. The only thing is that you normally have to shift keys for
any domino by hand.
I'm not exactly sure if he did it that way, but the animation looks really
good.
BTW: Copying tracks and shifting them should be easily possible with Keyscript,
if you aren't afraid of programming a bit and have R4.
My experiments with physical animations and combined usage of collision
detection and gravity didn't work out exact enough for those types of work. It
seems to be impossible to create a repetitive movement with this way.
In this cases programmed animation (Keyscript) and calculating seems to be a
much better way.
Hope that helps for a first approach, I could try to get more information about
the student's domino-work if you want.
Murat
#196546-#Dominoes — declared parent_msg_num=196546, resolved parent_id points to #196546
< My tip for him was to animate the first and the second domino with
accurate key timing (of course it's best to place the pivot at the
bottom front, as your latest approach was). As the next thing I
proposed to copy tracks to the following dominos. >
Neat!
<In this case programmed animation (Keyscript) and calculating seems
to be a much better way.>
You've given me an idea. I asked the question to help me with a review of
"physics" IPASes that I am writing. If my editor approves, I'll add
that kind of information to the article, and make it more complete.
If anyone else wants to share their techniques, please jump in!
<My experiments with physical animations and combined usage of
collision detection and gravity didn't work out exact enough for those
types of work. It seems to be impossible to create a repetitive
movement this way.>
Could you tell me what you tried? Did you use Key Factory or DMM?
<I could try to get more information about the student's domino-work
if you want.>
Sure, but don't go through a lot of trouble. You've already helped a
lot! Thanks!
Ed Kellerman
#196934-#Dominoes — declared parent_msg_num=196934, resolved parent_id points to #196934
Ed:
<<Could you tell me what you tried? Did you use Key Factory or DMM?>>
I'm still writing a book about 3D Animation and had to describe a couple of
different programs. One of them was Real 3D, that allows physical Animation. I
do only have the demo of Keyfactory and don't know of DMM, could you tell me
about?
<<Could you tell me what you tried?>>
I must admit that I am an absolute 3DS fan, even more after looking at all the
other programs, so I did not really produce an animation with the physics of
Real 3D, just had to understand how it works. The experience, though, was that
a couple of things as your dominoes or also a spinning wheel of a car that
matches the car's movement work better by calculating (in the case of the car
it's calculating the wheel's curcuit, not that comlicated).
The other way would be surface friction with physics and is never done
appropriately.
< …but don't go through a lot of trouble>
It would be a little complicated, so I'm glad I don't have to.
If I can help you in any way, just tell.
Murat
#197005-#Dominoes — declared parent_msg_num=197005, resolved parent_id points to #197005
DMM is a product developed by Positron Publishing, the same folks who developed
Meshpaint. THey have thier own forum. Type: GO POSITRON
#197140-Dominoes — declared parent_msg_num=197140, resolved parent_id points to #197140
Lee:
Thanx, I will check that.
Murat
#196512-Dominoes — declared parent_msg_num=196512, resolved parent_id points to #196512
> Does anyone know how to make dominoes, placed in a row, fall down in a chain
reaction? <
That's easy! Open a Pizza Hut!
I expect that my licence to attend the forum will be revoked for this one. . .
— James — Choreo Motion —
#196568-Dominoes — declared parent_msg_num=196568, resolved parent_id points to #196568
<That's easy! Open a Pizza Hut!>
Yeah, but then I'd have to deliver!
Ed K
#196512-Dominoes — declared parent_msg_num=196512, resolved parent_id points to #196512
Ed,
I found your dominoes question to very interesting, so I try working on the
puzzel. As you did I first tried to do it in KeyFactory, but that just got me
very frustrated. So I decided to write my own routine in Keyscript.
I got it to work, but the code is still very crude and not very user friendly.
I uploaded a copy of a demo flic file that I made. Take a look at it and see if
it looks like what you were trying to do. If so I'll let you know when the code
is a little less "buggy" and more "friendly".
James J. Trobaugh