dupliframe alternative for 2.8 I'm trying to create this image in Blender:



My first thought was:


rotscale animation
adjust the curves in the graph editor (the rotation step is smaller at the outside vs )
dupliframe


I see dupliframe got dropped in 2.8 though. Is there an alternative that would work in Blender 2.8?

I've been trying to achieve it with an array modifier using object offset for rotation and scale. This doesn't work though because of the need to vary the rotation step

I've also been trying to adapt this answer, but so far unsuccessful.
From this base figure:



We can place a Bezier curve:



And add a screw modifier to it (360 degrees with 3 steps):



And add an empty as pivot point for the modifier, then move it up until triangles are aligned:



You can play with the curve resolution to vary the amount of triangles.



To render it after that (did not pay attention to the edit mode above):

Convert the result to a mesh and add a wireframe modifier with a low thickness: