Thanks Dr. Sassi! Yes I believe this is a bug. I have filed for the support.
Best

Hello,

I'm trying to cut out pieces out of a sphere using the Knife/line cut tool, to create a spherical puzzle.

As I make the outline for the cut, I need to roll the camera to extend the cut to the other side of the sphere. But as soon as I adjust (roll/pan/zoom) the camera, I lose the previously created cut lines or the cut is partially done, and I'd have to start from zero. This seems to be a bug.
Is there a way to make the cutout line, adjust the camera, and pick up the cutout line from where it was left at?
And is it possible to adjust the cutout line points for a finer tuning, before executing the cut?

Thank you for any help you may be able to provide.

Hello,

I noticed that adjusting the 'Visibility' of the Display Tag applied to a Volume Builder object has no effect. I just wanted to check if this is a normal behavior or a bug.
I would like to achieve a volume of fog that dissipates gradually to 0% visibility and expected to use the Display Tag for achieving that.
Could you suggest any other way to do this?

Hello,

I am no longer seeing the video tutorial series on Cineversity for Introduction to Python in C4D .

I have watched the series a few weeks ago, so I know it exists and even Google has it in their search results.

Could you please restore this series of videos and make them available again?

Thank you

Ah I see! I think the trick is to put the rigid body tag on the parenting sphere, not the group, as you have done in your example file. And that's good to know that the Hierarchy Merge Level only works with Mograph. Thank you, Dr. Sassi.
That's a nice tip about the simulation's draw option. I haven't used it before, but I can see it coming handy.

This file is the one without the cloner:
RigidBodySimNoCloner.c4d

Hello,

I'd like to simulate a group of circling spheres getting attracted to a position in space.
From my experiments, it seems that the 'new' rigid body dynamics only works for Cloned objects. Without the Cloner, the attractor doesn't have any effect on the group that has rigid body tag. I'd like to know if someone can confirm this.

I've also tried the bullet rigid body tag, and that seems to work without the group being cloned (However I have other limitations with this system, so I'd like to use the 'new' dynamics system).

If someone could shed some light on this, I'd most appreciate it!
I've attached the file that demonstrates my problem.RigidBodySimc4d.c4d

Thanks Dr. Sassi!
I didn't think that the Python Node in Xpresso is limited in that way, but good to know. I'll think of a work around using other Xpresso nodes.
I wanted to use the Python node because I wanted to make the spline object change only once in the scene session when certain conditions are met.

For example, in your file, let's say that the 'Extrude Instance's Reference Object is set to Text Spline.0 'manually' at frame 0. How can I set it to Text Spline 2 if and only if when the distance from the range mapper gives 2, but leave it as Text Spline.0 otherwise? AND to make this change only once and not keep changing back and forth between Text Spline 0 and Text Spline 2 as the distance oscillates? I thought of using a global variable in python to keep track of the change (like a boolean isChanged) and execute the change only once. But may be I am totally off in my way to achieve the target.

Let me know if you have any helpful hints.

Here's my C4D file:
https://www.dropbox.com/scl/fi/mmyjml144miaysi9dsxni/XPressoTest.c4d?rlkey=67qbiypwtc68hgfebb8n3li7a&st=syo542kn&dl=0

On the Xpresso tag of the Antihydrogen node, you will find the Python node that I'm referring to.

Hello,
an Xpresso python newbie here.

How can I set a new spline object to the 'Align to Spline' tag inside the python node in Xpresso?

I am using Xpresso to calculate the distance between two objects and inside the Python node, I check if the distance is less than a certain length, I set a different spline object to the 'Align to Spline' tag of an object. To achieve this, I've tried dragging the new spline object into the python script. I've also tried setting it as a user data of the python node and used it inside the python script, but neither way worked.

Overall, I don't know how to access the objects in the Object Manager from the Python node. If someone can shed a light on this, I'd most appreciate it!
Thank you in advance!