Blender Python Tutorial: How to create a Custom Node Group (Compositor) - [bpy]

In this Video, we will be creating a Custom Node Group for the Compositor.

Custom Node Groups are really useful for speeding up our workflow. We can take a whole bunch of nodes and contain them in a single group. 

We can then define what options we want the user to be able to change.

Download the Template Script here. 

In this example we are just going to create a really basic Node Group with a couple of nodes, but you can take this further and create some awesome Custom Node Groups. 

As Many of you already know, the Darkfall VFX Nodes Add-on has a many Custom Node Groups and each of them give different effects or results.

The Eye Color Change Node

For example, this Custom Group Node will change the Eye Color of your Actor in your Movie clips. We have a whole bunch of values we can change and it's all packaged neatly in a Node Group. 

You can add what ever nodes you want inside of a Custom Node Group and create your own awesome Group Nodes.

Inside the Node Group, we can see all the nodes that are needed for the Effect to work. The more complex the effect, the more nodes you may have.

What kind of Custom Node Groups are you going to make?

Eye Color Change Node in Blender 2.8

In this Video, we will be looking at the Eye Color Change Node and how to use it. 

If you want to follow along and create these nodes for yourself, we will be creating the Eye Color Change Node Group at the end of the video but if you want to download the Node you can click here, or go to our Custom Node Group Page. 

We did this effect a while ago (in 2.79 in fact), and though the process is more or less the same, I wanted to create this Group of Nodes to help optimize my workflow (you can watch that video here).

Instead of having to create the same group of nodes over and over, I can easily append in a single Node Group and save myself a whole bunch of time. 

The Eye Color Change Node is (like the others), very simple and you can build upon and improve this how ever you want. 

We only need a few masks and a couple of tracks (that is if your subject's eyes move, like in the example). 


Then we can append then Eye Col Change Node (...yeah I know, another crappy named node..) and we can play around with not only the color of the Eyes but also the Brightness of the white part of the Eyeball. 

I hope this Node group helps you with your current or future projects!. 

If you enjoyed this video or at least found it helpful, then be sure to give it a Like!.. 

As always, thanks for reading.