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instances don't work in USD from Houdini to Maya, memory through the roof

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  • instances don't work in USD from Houdini to Maya, memory through the roof

    Hi,

    I have made some assets in Houdini that contain a large number of instanced foliage ... pine needles on tree branches and garlands or full trees on some assets. I export these as USD scenes and load them in Maya and render with Vray 6.2.2 Everything renders correctly, but we're hitting a memory ceiling with these assets, as it seems that none of the instances are being instanced but considered as unique geometry. So where one asse should be taking memory of under a 100 Mb, I get about 25 Gb or more depending on the asset. When we add a bunch of these assets to out layout scene, we hit memory limit and crashes our workstations. I tried to troubleshoot and see if I can get the instances to behave properly, but haven't had any luck so far. Any help would be much appreciated, thanks!

  • #2
    are you bring those as .usd data? and load them into Maya usd? and if not how then? Using a proxy?

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    • #3
      I load it as USD from file in maya
      Attached Files

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      • #4
        can you share a repro or something? also what version of Maya USD are you using? and M version?

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        • #5
          yup for sure. Where can I share this with you? I prepared a houldin scene and USD export. It's 60 Mb, so it won't let me upload it here as an attachment

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          • #6
            Could you send me the .usd as well? Either via DM or the contact form.
            Aleksandar Hadzhiev | chaos.com
            Chaos Support Representative | contact us

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            • #7
              Originally posted by fluxmedia View Post
              yup for sure. Where can I share this with you? I prepared a houldin scene and USD export. It's 60 Mb, so it won't let me upload it here as an attachment
              Use we transfer https://wetransfer.com/

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              • #8
                hsz and hermit.crab I need emails to share the wetransfer uploads with you

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                • #9
                  sorry forgot that it can be done as a link https://we.tl/t-bX8MtdVPCg
                  The simple, quick and secure way to send your files around the world without an account. Share your files, photos, and videos today for free.

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                  • #10
                    you can send to yourself and post the link here

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                    • #11
                      Lighter at Flux here, just adding software we are running

                      Maya: 2024.2
                      V-Ray: 6.20.02
                      MayaUsd: 0.25.0
                      Windows: 11​

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