Hydra StageSceneIndex question

Community Hydra
1

Hi guys,

I have a custom Hydra 2.0 implementation and I encountered a weird bug / unexpected situation.
I have a chain scene indexes that is very close to the one GLEngine is using.
When I opened the first scen, everything is working as expected. But then when I opened another stage, doing

				m_stageSceneIndex->SetStage(m_stage);

I indeed see that every prim is removed through the _SendPrimRemoved, but then the HdMergingSceneIndex observer from UsdImaging_PiPrototypeSceneIndex is sending back _SendPrimsAdded with all the previous stage, and I ended up with a merged scene, which is not desired.

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image1730×700 79 KB

I check the usdView implementation and it seems that, when changing the stage, the whole GLEngine is deleted and recreated.

Any idea / recommendation ?

Thanks,

Baptiste

2

I’ve replied to your Issue post - Hydra 2.0 scene index · Issue #3588 · PixarAnimationStudios/OpenUSD · GitHub