I tried to export my scene to USD using Unreal Engine 5.3 Omniverse Connector and viewed the USD in Isaac Sim, but found that a lot of materials were lost. Is this a known issue? Or is it a problem with exporting settings?
Depending on the source materials in Unreal, they may not be converted to MDL because the source shaders are unsupported.
Not all material functions are mapped to MDL as described in the docs:
https://docs.omniverse.nvidia.com/connect/latest/ue4/functionality.html#materials
Maybe you can double-check the materials you used and post in this thread.
Thanks
Thank you for your reply.
It seems that the 3D market is not as unified as imagined.
It is gratifying that USD is already the most effective export format among other formats, and we look forward to the further development of OpenUSD.
Thanks!
It seems to be just some of the materials, not all. And it seems to be the landscaping shaders. Try turning this on
Also before you jump into Isaac Sim, try opening the scene in USD Composer first. USD Composer has more advanced material support. Isaac Sim is a simulation tool. Not an advanced visualization template like USD Composer
