July 2, 2022 Linh Nguyen

Group Input And Output Nodes In Geometry Nodes in Blender

You will first need to learn about two primary nodes of the procedural modeling system first if you are unfamiliar with the geometry nodes system. The Group Input and Group Output nodes serve as the beginning and ending of your node tree, respectively. In creating the geometry of your new object utilizing the Geometry nodes system, both of these nodes are crucial. In this article, we will explore the purpose of these nodes.

1. What Is The Purpose Of The Group Input Node?

The original geometric data from the present model is mostly stored by the group input nodes. There is just one output for geometry found in this node. The details of the original object’s structure are included in this output. Use the geometry output from the group input node if you wish to use the object’s original data. The group input node can also be used to expose parameters from your note tree.

2. What Is The Purpose Of The Group Output Node?

The group output node’s primary function is to show the 3D viewport’s output from our node tree. The group output node is the single most crucial node to have in your setup since without it, nothing we do within our node system will be seen on our main model. For this reason, it is one of the two nodes that are automatically introduced whenever a new node tree is built. Similar to the group input node, sockets are available in addition to the geometry input that is already there. These extra sockets, though, are intended exclusively for qualities. For these sockets, you cannot use just any number.

3. Can These Nodes Be Used Multiple Times In Your Node System?

In fact, if you want to maintain your node system neat and orderly, it might be quite helpful to utilize the group input node more than once within a single node system. It can be simple to expose many parameters to the group input node in more complicated systems. Because of this, some artists make copies of the group input node and place them in various places within the node layout where they want to expose parameters. 

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Source: blenderbasecamp.com

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Linh Nguyen

Hi everyone. I work as an Assistant Customer at iRender. I always hope to know more 3D artists, data scientists from all over the world.


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