Merge by Distance node can make disappear anything! - Blender 4.2 Geometry node Tutorial

Merge by Distance node simply merges the geometry elements based on the distance value. It takes 3 inputs including the Geometry and gives the output geometry. Additionally it has a selection socket and the distance as a float value.

To explain the theory, I introduced a Grid node to show how the distance is calculated for the merge action. Starting with few points to explain the distance calculation, gradually increase the points and show how the distance value changes. To advance the explanation further we control the selection socket.

With the help of Index node and compare node, the correct value is given to the selection socket. This helps to see clearly how each point is merged further to create the geometry. As you increase the distance value, more and more points gets merged which will result in a single point at the end.

This set up can be used to make any object to appear or disappear by controlling the distance value. I use the Suzanne to demonstrate the same. By replacing the grid node with Suzanne we can animate this appearing and disappearing effect. Choose the desired value in distance field and insert keyframes accordingly. This can be taken as series of image output or a video output.


0:45 Merge by distance node theory

2:30 Control the merge effect with Selection socket

5:15 Disappear / Appear object

6:15 Insert Keyframe to animate the appear / disappear effect
If you want to know how the custom workspace in #blender3d can be created, please watch the video in the link below.
https://youtu.be/877bxQnKqt8

To understand the geometry read nodes, please follow the #blendertutorial on read nodes.
https://youtu.be/1smFBtZh1ZI

Useful #geometrynodes #blendertips which will help you to speed up your workflow, video link below.
https://youtu.be/liX8U97-hzw

Видео Merge by Distance node can make disappear anything! - Blender 4.2 Geometry node Tutorial канала CJ Academy