After all my models are loaded via asset containers and their contents added to the scene, I still suffer up to 5 seconds delay before the models appear. The skybox and floor are already rendered so scene initialization was clearly finished. I want to add a Loading overlay, but I need an event to …

This PR will make sure that everything is ready before scene.isReady returns true, even when using the pre-pass renderer: Pre-Pass renderer: Fix scene.isReady when using the prepass renderer BabylonJS:master ← Popov72:fix-scene-i…

I generally use this observable. scene.onReadyObservable.add(e=>{ console.log("do something") }) Of course you can also use custom loading screens, This is the document Creating Custom Loading Screens | Babylon.js Documentation (babylonjs.com)

Nope, this is some additional delay above and beyond the onReadyObservable. That’s why I noted that the skybox and floor are already rendered. Once my scene is ready then I begin loading the models. And I’ve timed that delay, from beginning to end of loading. They get added to the scene, and th…

@brechindo can you share a repro ?

https://ultimator.snaponpromotion.com/build/KEXN724A/AQgU_wYLTwIkCBQCEQElCBQCNwEHCBQCPQELCBQCJAEjCBQCKQEBCBQCKQECCBQCKgEZCBQCKgEYCBQCJAEKCBQCJAEaCBQCAA @sebavan This is our worst-case scenario, nicknamed The Beast. You should see the framework load quickly with all its 2D elements and a white can…

Everything is working fine for me as soon as the model is visible. Can you check in the dev tool if you have a really slow operation ? Also, you could add custom marks in the devtools to help you with the timing measurement.

Are you using the prepass renderer directly or indirectly (using SSAO2, SSR, motion blur, sub-surface scattering, etc)? It seems that there is an additional delay when using the prepass renderer, see Model load much slower with cascadedShadow and prepassRenderer - #5 by Evgeni_Popov . I am looking …

@sebavan “as soon as the model is visible” would be the key phrase there. The trouble is the whole site appears to freeze for a few seconds until the model is finally visible. I cant use the perf analyzer on this problem thus far, because Babylon isnt initialized until there’s a scene to load and …

@Evgeni_Popov SSAO2, specifically the SSAO2RenderingPipeline, although I also access the prepass renderer to enable MSAA. See below: const ssaoRatio = { ssaoRatio: 0.5, // Ratio of the SSAO post-process, in a lower resolution blurRatio: 0.5// Ratio of the combine po…

If you are using a shadow generator it could be the problem, it seems the compilation of the shaders done during the scene.isReady process don’t have the prepass renderer enabled, so when the scene is “ready” and should be displayed, new shader compilations take place.

I do have 2 lights for which I instantiate a ShadowGenerator each, during onSceneReady(). Which I guess means after the scene has been initialized by the renderer. That’s bad then? I should init lights and shadows before, not after, scene ready? const gen = new ShadowGenerator(25…

How to detect the completion of initialization

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Evgeni_Popov May 23, 2023, 9:34am 14

This PR will make sure that everything is ready before scene.isReady returns true, even when using the pre-pass renderer:

Model load much slower with cascadedShadow and prepassRenderer

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How to detect the completion of initialization

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