How to use local material instead of the cloud?

When I use Isaac sim, probably because of the network problem, I always fail to download materials from the cloud, and it takes a long time to start training. So I hope to read local materials instead of downloading from the cloud.

2025-07-17 14:54:19 [247,143ms] [Warning] [rtx.neuraylib.plugin] [EntityResolver] FileDatasourceInputStream failed to open: http://omniverse-content-production.s3.us-west-2.amazonaws.com/Materials/vMaterials_2/Plastic/Plastic_Thick_Translucent.mdl?watch=00007f803f085000
2025-07-17 14:54:19 [247,143ms] [Error] [rtx.neuraylib.plugin] [MDLC:COMPILER]   1.0   MDLC   comp error: http://omniverse-content-production.s3.us-west-2.amazonaws.com/Materials/vMaterials_2/Plastic/Plastic_Thick_Translucent.mdl?watch=00007f803f085000(1,1): C100 "mdl" expected
2025-07-17 14:54:19 [247,143ms] [Warning] [rtx.neuraylib.plugin] Loading MdlModule to DB (rtx_scope0) failed: ::Z6Ahttp_3A_2F::Z59omniverse_2Dcontent_2Dproduction_2Es3_2Eus_2Dwest_2D2_2Eamazonaws_2Ecom::Materials::vMaterials_2::Plastic::Plastic_Thick_Translucent
2025-07-17 14:54:19 [247,144ms] [Warning] [rtx.neuraylib.plugin] Loading transaction committed (this thread). MdlModule is NOT in the DB (rtx_scope0): ::Z6Ahttp_3A_2F::Z59omniverse_2Dcontent_2Dproduction_2Es3_2Eus_2Dwest_2D2_2Eamazonaws_2Ecom::Materials::vMaterials_2::Plastic::Plastic_Thick_Translucent
2025-07-17 14:56:18 [366,043ms] [Warning] [rtx.neuraylib.plugin] [EntityResolver] FileDatasourceInputStream failed to open: http://omniverse-content-production.s3.us-west-2.amazonaws.com/Materials/vMaterials_2/Plastic/Plastic_Thick_Translucent.mdl?watch=00007f803f037e50
2025-07-17 14:56:18 [366,043ms] [Error] [rtx.neuraylib.plugin] [MDLC:COMPILER]   1.0   MDLC   comp error: http://omniverse-content-production.s3.us-west-2.amazonaws.com/Materials/vMaterials_2/Plastic/Plastic_Thick_Translucent.mdl?watch=00007f803f037e50(1,1): C100 "mdl" expected
2025-07-17 14:56:18 [366,043ms] [Warning] [rtx.neuraylib.plugin] Loading MdlModule to DB (rtx_scope0) failed: ::Z6Ahttp_3A_2F::Z59omniverse_2Dcontent_2Dproduction_2Es3_2Eus_2Dwest_2D2_2Eamazonaws_2Ecom::Materials::vMaterials_2::Plastic::Plastic_Thick_Translucent
2025-07-17 14:56:18 [366,043ms] [Warning] [rtx.neuraylib.plugin] Loading transaction committed (this thread). MdlModule is NOT in the DB (rtx_scope0): ::Z6Ahttp_3A_2F::Z59omniverse_2Dcontent_2Dproduction_2Es3_2Eus_2Dwest_2D2_2Eamazonaws_2Ecom::Materials::vMaterials_2::Plastic::Plastic_Thick_Translucent
2025-07-17 14:58:54 [521,625ms] [Warning] [rtx.neuraylib.plugin] [EntityResolver] FileDatasourceInputStream failed to open: http://omniverse-content-production.s3.us-west-2.amazonaws.com/Materials/vMaterials_2/Plastic/Plastic_Thick_Translucent.mdl?watch=00007f803dd13090
2025-07-17 14:58:54 [521,625ms] [Error] [rtx.neuraylib.plugin] [MDLC:COMPILER]   1.0   MDLC   comp error: http://omniverse-content-production.s3.us-west-2.amazonaws.com/Materials/vMaterials_2/Plastic/Plastic_Thick_Translucent.mdl?watch=00007f803dd13090(1,1): C100 "mdl" expected
2025-07-17 14:58:54 [521,625ms] [Warning] [rtx.neuraylib.plugin] Loading MdlModule to DB (rtx_scope0) failed: ::Z6Ahttp_3A_2F::Z59omniverse_2Dcontent_2Dproduction_2Es3_2Eus_2Dwest_2D2_2Eamazonaws_2Ecom::Materials::vMaterials_2::Plastic::Plastic_Thick_Translucent
2025-07-17 14:58:54 [521,625ms] [Warning] [rtx.neuraylib.plugin] Loading transaction committed (this thread). MdlModule is NOT in the DB (rtx_scope0): ::Z6Ahttp_3A_2F::Z59omniverse_2Dcontent_2Dproduction_2Es3_2Eus_2Dwest_2D2_2Eamazonaws_2Ecom::Materials::vMaterials_2::Plastic::Plastic_Thick_Translucent

So I first add the location of the downloaded materials in .bashrc

export RTX_MATERIALDB_MDL_PATHS=/opt/nvidia/mdl/vMaterials_2
export MDL_PATH=/opt/nvidia/mdl/vMaterials_2
export CARB_DISABLE_SEARCH_REMOTE_ASSETS=1

But this still doesn’t work.

After that I set the material path in the preferences in the software as shown in the picture, but it still doesn’t work

I want to know how to specify the material path as a local path?

Isaac Sim Version

4.5.0
4.2.0
4.1.0
4.0.0
4.5.0
2023.1.1
2023.1.0-hotfix.1
Other (please specify):

Operating System

Ubuntu 22.04
Ubuntu 20.04
Windows 11
Windows 10
Other (please specify):

GPU Information

  • Model: 4080Super
  • Driver Version: 535.183.01

Hi @3031316709 Isaac Sim 2023.1.0-hotfix.1 is EOL. Could you please switch to our latest stable version Isaac Sim 4.5 or Isaac Sim 5.0? Thanks

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