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Operating System
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GPU Information
- Model: RTX4090
- Driver Version: 570.133.20
Topic Description
Isaaclab：main
Detailed Description
When I run official Isaac Lab tutorial scripts with ./isaaclab.sh -p scripts/tutorials/04_sensors/add_sensors_on_robot.py --enable_cameras and view the onboard camera (viewport or Camera.data.output[“rgb”]), the image is uniform white (uint8 RGB mean ≈ 235–255, no scene content).
front_cam：
Steps to Reproduce
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If I create a new camera in the GUI, the same scene then renders correctly in the viewport and in sensor output.Camera：
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If I turn off the lights, the screen will be completely black, and the objects in the environment are not rendered.front_cam:
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The same problem also occurs when I mount the camera onto my rigidbody; the camera view shows pure white.
Error Messages
(Camera @ ‘/World/envs/env_.*/Robot/base/front_cam’:
data types : [‘rgb’, ‘distance_to_image_plane’]
semantic filter : :
colorize semantic segm. : True
colorize instance segm. : True
colorize instance id segm.: True
update period (s): 0.1
shape : (480, 640)
number of sensors : 2
Received shape of rgb image: torch.Size([2, 480, 640, 3])
Received shape of depth image: torch.Size([2, 480, 640, 1])
Ray-caster @ ‘/World/envs/env_.*/Robot/base’:
view type : <class ‘omni.physics.tensors.impl.api.ArticulationView’>
update period (s) : 0.02
number of meshes : 1
number of sensors : 2
number of rays/sensor: 187
total number of rays : 374
Received max height value: 3.814697265625e-06
Contact sensor @ ‘/World/envs/env_./Robot/._FOOT’:
view type : <class ‘omni.physics.tensors.impl.api.RigidBodyView’>
update period (s) : 0.0
number of bodies : 4
body names : [‘LF_FOOT’, ‘LH_FOOT’, ‘RF_FOOT’, ‘RH_FOOT’]
Received max contact force of: 139.1256561279297
2026-05-27 08:50:46 [48,841ms] [Warning] [omni.usd] Warning (secondary thread): in GetInstanceIndices at line 2190 of /builds/omniverse/usd-ci/USD/pxr/usdImaging/usdImaging/pointInstancerAdapter.cpp – ProtoIndex 1 out of bounds (prototypes size = 1) for (/Visuals/ContactSensor, /Visuals/ContactSensor.proto1_mesh_id0)
2026-05-27 08:50:46 [48,841ms] [Warning] [omni.usd] Warning (secondary thread): in GetInstanceIndices at line 3256 of /builds/omniverse/usd-ci/USD/pxr/usdImaging/usdImaging/delegate.cpp – Empty InstanceIndices (/Visuals/ContactSensor, /Visuals/ContactSensor.proto1_mesh_id0))