How can I manipulate the position of a point in Xpresso? [SOLVED]

#1

I want to connect two objects with a two-point spline so the first point should have always the same position of the 1st objects’ G.position and the second point the position of the 2nd objects’ G.position…

I know I can do it with the Tracer but I want to use a more complex setup later.

I have found out that I can make an object dependent of a spline point but I can’t figure out how to do the opposite.
I want to move the objects not the spline points.

The following 3 nodes do the opposite of what I want.
Screenshot_1

#2

Click on the blue to get a point position input and set the point indexes to 0 and 1 in attribute manager.

spline

#3

Thank you JED.
Once more I’ve fallen victim of the unintuitive information flow of nodes in C4D…

I was expecting the Object to be Driven by the Point operator from the other side of the operation…

#4

I came across this thread while trying to solve a similar problem.

I’m trying to move multiple points of a single object using XPresso.
Basically, I created a cylinder, made a point selection of the points at one end and am trying to create an XPresso setup where I can have slider control the position of all the points at the one end of the cylinder.

Is this possible, and/or can you please help?

#5

Xpresso isn’t the best tool here, while it offers rudimentary geometry manipulation it can’t handle selections. Scene Nodes however can. Check the attached scene for an example of a Scene Nodes Capsule that offsets the points of a given selection in local space. Please note that the name of the point selection has to be set in quotation marks.
Modify Selected 02.c4d (236.8 KB)

#6

It might help if Maxon reverse the damage labelling the most significant update to C4D in decades as a ‘Tech Demo’ and more people might use Scene Nodes.

#7

If anything i would label the Scene Manager and the Op graph as Tech Demo, the Scene Nodes in Capsules are production ready. 2023.1 added a few of them and so did previous updates.

#8

There is a reason why C4D users on this forum still look for answers in Xpresso over Scene Nodes. There’s a reason why high profile tutorialists have given Scene Nodes the swerve. Bad marketing of a powerful feature.

#Nodevember is a perfect opportunity to demonstrate Scene Nodes but an opportunity missed so far.