reactor: unyielding bodies

[gaggle]

I don't have enough experience with Reactor to be able to go in and say what setting needs tweakage, but that really seems like such a simple thing to simulate that the helpfiles ought be able to help you?

Maybe load a few example-scenes as well to see how they're set up?

[Reality3D]

I wouldn't have asked this if i haven't read the manuals entirely and load the samples(none has unyielding properties btw)

[Reality3D]

Ah, for more info I tried increasing the substeps/key and the Updates/frame (for unyielding bodies) spinners

[gaggle]

Oh, and that helped? Hm whodthunkit :)

Sorry for assuming you hadn't read the manual btw :blush:

[Reality3D]

No, that didn't help 8)

[BrandonD]

Did you assign them to the same RBD helper? If not, they won't know that they "can" collide.

[Reality3D]

Of course Brandon(if you see the avi, some kind of colision occurs).

[Reality3D]

I have upload the scene if someone wants to play with at
http://www.telefonica.net/web/r3d/reactor1.max (45 kB).
It's strange thar if I put gravity at 0.0 no collision occurs(i have put off the energy deactivator). Thanks in advance

[AXE]

unyelding objects should be "still" (for example, a plane that simulates the ground and some objects fall and bounce over it).

[Reality3D]

unyelding objects should be "still" (for example, a plane that simulates the ground and some objects fall and bounce over it).
No, for that purpose you put a 0.0 mass to an object.When an object has a mass of 0 kg, reactorconsiders it to be fixed, and it cannot move.

Unyield objects are designed to carry their keyframe animation and objects of the rigid body collection(in this case) interact(collide) with him

[MFreywald]

I personally thought that unyealding meant it didn't react to reactor dynamics per say. For example I have used unyealding to some degree in animating a hose attached to a airbrush nozzel. Since the whole object goes into a Rope collector but you use the rope modifier on the vertices you want to be ropped. I have it set that unselected vertices are unyealding in the properties panel. Then select all the vertices except two at each end. This way the hose anchors itself to a box I have out of scene and the nozzel. Without unyealding at the two vertices where the hose inserts into the nozzel it would clip through the nozzel attachment when it moved around.

[Dave Black]

I made a new scene and got unyielding bodies to do what they should do.

I reviewed your scene, but I did'nt find any of the usualy suspects.

My advice:

Try it again.

I made it work in my new scene. Zero G. Not a prob. My theory is it has something to do with your unit scale, but I it looks like it should be ok...

-3DZ

:D

[Reality3D]

Hmm, very strange.In your scene you use only rotational movements for the unyield body?.would you mind sending your test scene 3DZealot?

[Reality3D]

Hmm, it seams like reactor doesn't take in account the rotational movements of the unyielding bodies. If I animate the position track a little bit works reasonably. Anyone can confirm it?

[Dave Black]

Sorry for the long wait, man, been busy today.

I only used rotational trasforms to get the objects moving.

Here's the file I was playing with:

http://www.3dzealot.com/DownLoads/Reactor_Unyield.max

I'm not sure if i've really helped much, but this scene does have a couple of objects colliding in zero G. One is unyielding, and the other is just a standard rigid body. There still is some wierd collision issues. I think it may have something to do with the velocity of the unyielding object's movement...

Have a look, maybe it will give you some ideas.

Hope it's of some help.

-3DZ

:D

[Reality3D]

Thanks 3DZealot. Your example collides , but there are still some issues. From my experiments, is best to mix positional and rotational movements to achieve better result in unyielding bodie colissions. I have made a testhttp://www.telefonica.net/web/r3d/dyntest2.avi that shows(at least to me) the hidden potential of reactor. If anyone wants the .max ask for it

[CGTalk Moderation]

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.