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I'm looking for a way to animate custom Blender attributes. Let's say we have an attribute created using the solution from this post: Manually setting custom attributes per edge / vertex / etc

import bpy

mesh = bpy.context.collection.objects["Cube"].data
attribute = mesh.attributes.new(name="new attribute", type="FLOAT", domain="POINT")
attribute_values = [i for i in range(len(mesh.vertices))]
attribute.data.foreach_set("value", attribute_values)

Now, when I'm trying to add animation using attribute.keyframe_insert(), I'm facing a problem. What should be entered into the data_path argument? I've tried entering "value" or the output of dir(attribute) without success.

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  • $\begingroup$ Can you set keyframes for attributes manually (through the interface)? I thought we can only keyframe properties. $\endgroup$ Commented Mar 31, 2024 at 19:38
  • $\begingroup$ i am also not totally sure but i think too that this isn't possible and not "keyframable" $\endgroup$ Commented Apr 1, 2024 at 6:29

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