A Blender addon that creates a point cloud that blends between two meshes using Geometry Nodes
Install the latest version of the addon from here.
Warning
This version works on Blender 4.2. To use it on Blender 4.1, install version 1.0.0.
Select two meshes, then in the Object menu choose either Mesh Particle Blend (objects will lose all transforms), or chooses Mesh Particle Blend (Keep Transforms).
The created point cloud will have a Geometry Nodes modifier applied to it, which will be used to control the effect.
Important
In the shading tab, a new Node group called mpb_attributes will be available.
If an object is chosen to render as the point cloud instance, this node group can be used to access various properties of the point cloud.
Make sure the material is applied to the object being instanced, not to the point cloud.
Thanks to NodeToPython for making this project possible.

