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Hi, I recently decided to recreate an old Maya project in Houdini. For that I had to export animated mesh from M to H so I used alembic. The 960f was 119Mb I did some modifications and tried exporting it as bgeo but it exploded to 106Gb so I tried abc which turned out to be 35Gb. And yes i added some attributes, subdivided few things and stuff, but it still seemed too much for the changes I made so I decided to explore. I exported animated abc from M (2019) of just 11f (step 0.25f) and that was 94Mb. I opened the abc in H with basic alembic node (default H18 settings) and export that with rop_alembic_output node straight from the alembic read node, with the same frame range & step. I've tried different formats (HDF5 and Ogawa (used by Maya) ) and settings here but all had pretty much the same size results of 1.5Gb. I didn't find any settings that would relay to compression or anything like that. Is it the same for you guys too? Does anyone have an explanation of this and perhaps a solution/idea how to reduce the abc size from H? Thanks Martin --------- Houdini 18.0.349 Maya 2019