udeflector question

[Anonymous]

Brand new day brand new question. Why is it I can

1. create a udeflector
2. pick plane as the object
3. bind space warp to the a pf Source

https://gyazo.com/9c04b7690a9c9ecb7ce2248d0baf2c77

and it works but when I

1. create a udeflector
2. pick a object I created
3. bind space warp to the pf source

https://gyazo.com/bff686dc0cbbe90004c9e7cf44b90976

 it don’t work

[Anonymous]

Either inverse the normals of the collider or better, give the collider some thickness using the shell modifier.

The geometry of your collider is horrible btw, build a collision proxy with sufficient evenly spaced polygons.

[Anonymous]

Example:

[Anonymous]

Thanks first of all

when you say "The geometry of your collider is horrible btw" are you talking about the simple extruded arc or the loft below? 

If you are talking about the loft below, that is the shape of my hopper that must contain all of the particles.

https://gyazo.com/584616cb309976e8d9546a8c2bcda6e7

If i did not do  that I would need several planes to accomplish this.

I am only trying to deflect of the small arc at this point. I probable shouldn't have shown the hopper below but that will be coming up

[Anonymous]

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@Anonymous wrote:

Thanks first of all

when you say "The geometry of your collider is horrible btw" are you talking about the simple extruded arc or the loft below? 

If you are talking about the loft below, that is the shape of my hopper that must contain all of the particles.

https://gyazo.com/584616cb309976e8d9546a8c2bcda6e7

If i did not do  that I would need several planes to accomplish this.

I am only trying to deflect of the small arc at this point. I probable shouldn't have shown the hopper below but that will be coming up

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I just thought that the feed-hopper has long,thin and huge polygons that 'might' cause some trouble as colliding geometry.

So maybe building a collision proxy similar to the geometry in the image that i posted would be a good idea.However if it works with your render-geometry then just go for it.

So does the collisions for the arc work now?

[Anonymous]

Yes flipping the normal's worked! thank you very much!

Can you tell me why some get thru? I have even added shell and increased the thickness

Sometimes the particles go straight thru other times on after a bounce.

 check this out. After about 10 particles a couple go thru

https://gyazo.com/fc306b9ab7ed3dffbad62456884b97ba

[Anonymous]

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@Anonymous wrote:

Yes flipping the normal's worked! thank you very much!

Can you tell me why some get thru? I have even added shell and increased the thickness

Sometimes the particles go straight thru other times on after a bounce.

 check this out. After about 10 particles a couple go thru

https://gyazo.com/fc306b9ab7ed3dffbad62456884b97ba

---

You probably need to change the Integration Steps (PF-Source->System Management->Integration Steps). Try set it to '1/4' or '1/8 frame' or even lower.

http://help.autodesk.com/view/3DSMAX/2018/ENU/?guid=GUID-89DA4474-E8F4-496F-9339-305D8C8E241E

[Anonymous]

you rock can you tell me where the global event (title bar) is? I look at your autodesk page and im not finding it in the particle view. most likely it right under my nose

[Anonymous · Accepted solution]

It`s in the commandpanel-rollout of the PFlow source.

And also in the ParticleFlow window: (Select the source)

[Anonymous]

It did work!

Thanks!

 https://gyazo.com/218caed5d6eed4fc860ceb62201ba31a

[Anonymous]

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@Anonymous wrote:

It did work!

Thanks!

 https://gyazo.com/218caed5d6eed4fc860ceb62201ba31a

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You're  welcome. Glad it worked.

[Anonymous]

I have another question. What can I do about this? I have the intergration step set at 1/8 frame viewport and 1Tick render. the particles work fine here

https://gyazo.com/9b1a57987d156d9867b7c1f87517ee59

However when i move the deflector up closer it does not work well https://gyazo.com/4b7924a5e82af9f7d3c30b8ef6d72d90

I have come to the conclusion that they lose their collision after the first bounce. is there a place to change that and tell it that it can bounce as many times as needed?

thanks

[Anonymous]

Can you post the scene?

[Anonymous]

Things have changed since my last post but here is the current scene

I am trying to figure out why my curved deflector is not working.

[Anonymous]

OK,just trying to get your setup:

1) You are emitting particles in the first event(green)

2) In the first event you also have a collision test that sends the partices to a second event( blue)

Note: WHEN the particles will be sent to the second event depends on the settings of the collision test in this event.

So did you have a collision-test in the secend event also? Because if not, the particles will not collide in the second event.

[Anonymous]

sorry that sound like my old file. are you seeing this in this in the pv?

https://gyazo.com/22ee168fd5f60a245b3f34bfd40930a2

[Anonymous]

Here is the latest

I have 5 coliders

1 to 2 to 3 to 4  (3 is not working)

[Anonymous]

well its working now. All i did was re assign it.

Touchy i guess

Thanks for looking at it.

[Anonymous]

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@Anonymous wrote:

well its working now. All i did was re assign it.

Touchy i guess

Thanks for looking at it.

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Still, i have made an update for your scene and saved it under 2016 version.I didn`t add the paddles as colliders, though.

1) I see you have multiple collision tests in a single event. You just need one test, you can add as many colliders as you want.

2) You have several bindings for you udeflectors. You don`t need them, just select the udeflectors in the collision-test and it works.

3) There`s no need for two Forces operators in one event. The Influence parameter in the force-operator is set to 1000% per default adding a lot of gravity. You might consider lowering this.

[Anonymous]

Wow that cleans it up! Thank you very much for your persistent assistants on this! aon..

One last question hopefully. You see that I have the Integration step viewport 1/8 and render 1 tick yet i am still get a few bleed thru. Is there anything else i can do to prevent this? I duplicated the udeflector as a backup and it stopped it. It seems to me that you would not need to do that.

https://gyazo.com/9843402fef3cc7e4c1d33e94c640dee7