I ran the same code of rtx lidar on IsaacSim 4.2.0 and IsaacSim 4.5.0 and got different results

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Isaac Sim Version

4.5.0
4.2.0

Operating System

Windows 11

GPU Information

|---------------------------------------------------------------------------------------------|
| Driver Version: 572.47 | Graphics API: D3D12
|=============================================================================================|
| GPU | Name | Active | LDA | GPU Memory | Vendor-ID | LUID |
| | | | | | Device-ID | UUID |
| | | | | | Bus-ID | |
|---------------------------------------------------------------------------------------------|
| 0 | NVIDIA GeForce RTX 3070 Ti Lap… | Yes: 0 | | 8018 MB | 10de | d44fe318… |
| | | | | | 24a0 | 0 |

Topic Description

Detailed Description

I used omni.isaac.sensor/isaacsim.sensors.rtx to create a simulation of an airborne Lidar and used RtxSensorCpuIsaacCreateRTXLidarScanBuffer to output the ‘objectId’ ’ information and added it to the point cloud information. Subsequently displaying the objectId information in cloudcompare gave a different result. Below is part of the code I used.

Screenshots or Videos


Additional Information

What I’ve Tried

code.txt (4.2 KB)

At the moment, I think it’s due to an error caused by non-visual materials, I’ll test it further afterwards and the subsequent results will be placed below

Hey @Big_Watermelon! Could you please provide a minimal setup and steps for us to replicate your issue? Thanks!