Particle Clone method is not working locally(on PG it works)

Questions
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1

Hey guys,

I faced with a strange issue. When i try to clone particle system it throws error ERROR TypeError: Cannot read properties of null (reading ‘position’)

I have found that it because babylon tries to serialize emitter but my emitter is null at that moment so there is an error. But when i tried to reproduce it on PG i found that particle system have emitter. The same particle system with the same code have different behaviour locally and on PG. I wonder is there some property maybe which i didn’t enable and it is enabled by default on pg?

Working PG. look at 26-30 lines they don’t work locally

I use 8.53.0 version locally because 8.53.1 completely broken

Could you please help?

2

OMG i found out that if i remove 21 24 lines on PG (creation of sphere) emitter become null.

babylon automatically assign emitter if scene have suitable or what?

looks like i need to assign fake emitter and then clone particle system…

3

That’s because the emitter is serialized as a mesh id:

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During parsing, a mesh with this identifier is searched for in the scene, and if none is found, the emitter remains null in the particle system.

4

ok then why babylon is trying to clone emitter if it’s null

5

The code assumed that the emitter mesh would always be found.

This PR will assign a default (0,0,0) position when the mesh is not found during parsing:

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