Scene Performance Priority Modes Issue

Questions
1

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I noticed that there is a way to modify the material in the document, but the material cannot be modified actually

2

What do you mean? Is it within an animation or something?
I’m not sure what the intermediate mode does just exactly besides freezing meshes, but I experienced that in some cases, it was not the freeze but the dirty mechanism preventing the update.
You could try add this line to see if it makes a difference:

scene.blockMaterialDirtyMechanism = false;

3

Instead of unfreezing / freezing, try to call material.markDirty(true).

Better handling frozen materials is something on our list:

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4

This works, tks

5

markDirty Only one material takes effect

6

Yes, it’s a known problem with the current system and is reported in the 4th bullet point in Materials: improve management of frozen materials · Issue #13776 · BabylonJS/Babylon.js · GitHub.

A workaround is to call markDirty in the onUnbind observable:

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