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I have a question that has been bugging me for some time and I couldn't find much information about it. Which is the best and most efficient way to render many polygons? Using delayed load procedurals or using packed disk primitives? Or, am I confused and are they both doing the same thing and there's no difference between the 2 workflows? As far as I know, they both create instance geometry. The documentation doesn't help much either, half of the things I read talk bout optimizing a render using delayed load procedurals, and the other half about using packed primitives. I'm wondering if packed primitives is the new workflow and using delayed load procedurals was the old way of doing it as is now obsolete? Here are the 2 workflows I'm talking about: Packed Disk Primitives Here I pack all my geometry and write it out to disk. I then load it back and change the load setting to "Packed Disk Primitives". Then I generate my IFDs and they are now referencing the geometry from disk instead of having to write them out (And the IFDs are a few KB or MB big). I then render using those IFDs. Here is what the documentation says about it: "Packed Primitives express a procedure to generate geometry at render time." "Because Packed Disk Primitives by their nature are geometry streamed from a file, similar to Alembic primitives, we don’t have to use a special procedural to get smaller IFDs." Delayed Load Procedurals Here I write out my geometry (not packed) as bgeo and then make a Delayed Load Procedural shader and select the bgeo files I just wrote to disk. I then go to the Rendering -> Geometry tab of my object and load my Procedural Shader. I then create my IFDs and then render them out. In the documentation about the delayed load procedurals, it talks about optimizing geometry this way. So I know there are these 2 ways, but are they both equally the same, or is one of them better than the other? Which workflow do you use? Also, when using the packed disk primitives, if the geometry you want to render is unique and it can't be instanced (or there's just no point in doing it), do you still pack it (so its only 1 packed prim) and save it out? Or do you use the delayed load procedurals? Do you use any other workflow? Any advice on this would be greatly appreciated! Thanks