I have a proposal related to this that you might like. It would allow for not only using generated geometry as an input for point instances, but also combining generated geometry with multiple objects and collections, example near the start:
blender.community/c/rightclickselect/1Wxm/
1
t
testure
it's quite not that simple- geometry (verts) have a transform, but no matrix in relation to the world- so without an object a point instance has no frame of reference with where to spawn the input geometry. the best you could hope for in that situation is just spawning everything with an identity matrix (basically the center of the grid) or in relation to the object containing the geometry nodes network.
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This is currently under development: developer.blender.org/D11841
I have a proposal related to this that you might like. It would allow for not only using generated geometry as an input for point instances, but also combining generated geometry with multiple objects and collections, example near the start: blender.community/c/rightclickselect/1Wxm/
it's quite not that simple- geometry (verts) have a transform, but no matrix in relation to the world- so without an object a point instance has no frame of reference with where to spawn the input geometry. the best you could hope for in that situation is just spawning everything with an identity matrix (basically the center of the grid) or in relation to the object containing the geometry nodes network.