Isaac Sim 5.0.1 - PoseWriter

Omniverse Isaac Sim
1

I found the document that PoseWriter is existed in the replicator writer extension.

BasicWriter works for me, but the PoseWriter doesn’t work properly. Replicator created dataset file, but it’s empty.

The code that I used down below:

import omni.replicator.core as rep
from isaacsim.core.utils.stage import open_stage
from isaacsim.core.utils.semantics import add_labels
import omni.usd
from isaacsim.replicator.writers import PoseWriter

usd_path = "/home/work/isaac-5.1/replicator/field/output/field.usd" 
open_stage(usd_path)
stage = omni.usd.get_context().get_stage()

with rep.new_layer():
    camera = rep.create.camera( focus_distance=400.0, focal_length=24.0, clipping_range=(0.1, 10000000.0), name="Cam")
    render_product = rep.create.render_product(camera, (1024, 1024))    
    
    target_path = "/World/Strawberries/Strawberry_01/Geometry/Twig_d3/Flower_stalk_1/Receptacle" 
    strawberry = stage.GetPrimAtPath(target_path)
    add_labels(strawberry, labels=["strawberry"], instance_name= "class")


    pose_writer = rep.WriterRegistry.get("PoseWriter")
    pose_writer.initialize(
        output_dir = "/home/work/isaac-5.1/replicator/dataset",
        use_subfolders= True
    )
    pose_writer.attach([render_product])
    

    with rep.trigger.on_frame(max_execs=10):
        with camera:
            rep.modify.pose(
                position=rep.distribution.uniform((-0.5, 0.2, -0.5), (0.5, 0.5, 0.5)),
                look_at=target_path
            )
            

rep.orchestrator.preview()

It didn’t show any error log in terminal.

3

The Pose Writer is an Isaac Sim writer. Moving this to the Isaac Sim forums where this can be better answered.

4

Could you reference the standalone_examples/api/isaacsim.replicator.examples/sdg_getting_started_02.py example in your script? This example shows a complete Replicator setup (including writer initialization and triggering), which may help identify what is missing in your current PoseWriter configuration.

6

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