Path Tracing randomizing textures returns black objects

Omniverse Synthetic Data Generation (SDG)
1

With path tracing enabled, I am getting random frames rendered without textures even on the TutorialRandomizerTextures example in the omni.replicator_yaml samples repository.

This issue is much worse on complex scenes. All output frames are black with no textures.

I added to the yaml file

# Enable Path Tracing
path_tracing:
  settings.set_render_pathtraced:
    samples_per_pixel: 128

Results I get:

0.jpeg

0
01024×1024 30 KB

1.jpeg

1
11024×1024 30 KB

2.jpeg

2
21024×1024 75.7 KB

cc @dennis.lynch

2

maybe you can help cc @pcallender @wilfried.rakow

3

@Turowicz I wasn’t able to repro. Do you have a full log handy? Is this local or on a container? Headless or in GUI?

image
image966×1000 156 KB

4

I always run in a container nvcr.io/nvidia/isaac-sim:2023.1.1 by using the command:

    /isaac-sim/runheadless.native.sh  --no-window \
                                      --/app/viewport/grid/enabled=false \
                                      --/app/viewport/defaults/guide/grid/visible=false \
                                      --/omni/replicator/replicatorYaml/yamlPath=$FILE

where $FILE is the path to the tutorial file I mentioned above

5

did you enable path tracing?

7

@Turowicz Yeah I added the pathtracing yaml snippet. Is the black (lack of) texture only showing on the first two images, or does it pepper your later frames as well?

8

It happens only on the first two. We can go ahead and close this issue as I can just skip those two results.

9

Ahh, ok. I misunderstood. It sounded like you were getting random frames rendered without textures and in complex scenes all frames were black. Good to hear its not that dire. :)

1 Like
10

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