Nodes - Cloner Object Disappearance

[Aggrotech]

I have a simulation in the scene where the objects in the cloner fly to the attractor, surrounded by the collider body.
And it is possible to create with Xpresso scene where  cloner objects one by one disappear (scale from 1 to 0) when they collide with the collider?
I'm bad with Xpresso, I will be glad if someone can create the scene.
I tried to do a trick with the Plain and Field where the scale of the clones is changed to 0, but it does not work.

[HappyPolygon]

Please fill your profile with the appropriate info (version of C4D) so we can provide a solution better suited for you.

[Aggrotech]

23 hours ago, HappyPolygon said:

Please fill your profile with the appropriate info (version of C4D) so we can provide a solution better suited for you.

I can’t find where I can fill this form in my profile. My version S26.

[HappyPolygon]

At the top of your profile page, where the banner image is there are 3 options. The middle one is where you can fill various info

 

[HappyPolygon]

So you want the objects to shrink after they collide with the collider object and the shrinking effect to have a time interval ?

[Aggrotech]

Yes, for example for 3 sec, it doesn't matter at all.
Here is my example. I just don't know how to index clones here. They are shrinking together.

Object Disappearance.c4d

[HappyPolygon]

Hmmm...

Since you are dealing with a cloner you should use nodes specific to instances. I've never used XPresso with clones but I think the following nodes are key to the solution:

 

Object Index - Will only read instances from Object A (cloner) that have been in contact with the collider.

Data - Using only the indexes of those instances and the source cloner feed their data to a Sample

Sample - I think Sample acts like a Selection tag. It connects with an Effector and passes the Data of the chosen instances to that effector.

 

I think my solution does not work because the Object Instance node does not take more than one Instance at a time. Maybe you can make a collection of Instances using an iteration node ....

 

As for the time-delay for the shrinking I've no idea if your approach can fit in mine or if you could abandon the node implementation and use a Delay effector...

 

Edited January 23, 2023 by HappyPolygon (see edit history)

[Aggrotech]

On 1/23/2023 at 2:03 AM, HappyPolygon said:

Hmmm...

Since you are dealing with a cloner you should use nodes specific to instances. I've never used XPresso with clones but I think the following nodes are key to the solution:

 

Object Index - Will only read instances from Object A (cloner) that have been in contact with the collider.

Data - Using only the indexes of those instances and the source cloner feed their data to a Sample

Sample - I think Sample acts like a Selection tag. It connects with an Effector and passes the Data of the chosen instances to that effector.

 

I think my solution does not work because the Object Instance node does not take more than one Instance at a time. Maybe you can make a collection of Instances using an iteration node ....

 

As for the time-delay for the shrinking I've no idea if your approach can fit in mine or if you could abandon the node implementation and use a Delay effector...

 

So, Once I found a solution on some resource where, when object touch an object of cloner, certain elements of it begin to be simulating (example with animation attached). After this decision, I wondered if it was possible to do the same thing with clones shrinking by scaling to 0. But I do not really understand how this part of the nodes works (picture attached). Is it possible?

On 1/22/2023 at 6:40 PM, HappyPolygon said:

So you want the objects to shrink after they collide with the collider object and the shrinking effect to have a time interval ?

 

Xpresso Cloner Index.c4d

[HappyPolygon]

Let's call the expert @jed

[jed]

Here I used Python to iterate the cloner.  A small value is subtracted from the spheres radius every frame when in the zone.

 

Object Disappearance_0001.c4d

[Aggrotech]

On 1/25/2023 at 3:19 PM, jed said:

Here I used Python to iterate the cloner.  A small value is subtracted from the spheres radius every frame when in the zone.

 

Object Disappearance_0001.c4d 247.89 kB · 1 download

Wow, thank yo so much @jed @HappyPolygon! Perfect setup. Everything works fine, and we can change the radius of the spheres and shrinking speed. Thanks a lot! I have only one additional question, I understand that everything works around radius and this will not work with other objects in the cloner. Is it possible to make somehow the objects inside the spheres also shrink up? Or, in some other way, to use any instances in cloner. Thanks!

[jed]

3 hours ago, Aggrotech said:

Is it possible to make somehow the objects inside the spheres also shrink up?

 

Sort of - but it's a bit flaky. You can use the standard hierarchy path to go up/down etc using a reference node.

 

 

I just used D to go down one level from sphere to figure, then similar XP as the radius to control the figure height. I tried using scale, but it exploded.

 

Object Disappearance_0002.c4d