Dynamically add mesh to ShadowGenerator

[snippet-nicotine]

Hello,

I'm new to react-babylonjs, and I would like to know the best way to add a mesh generated at runtime to a specific shadowGenerator?
For what i saw in the playground examples, the shadowGenerator.shadowCasters needs an array of mesh's name, but what if the mesh is created at runtime and can have any random name?
Does mesh have a special property like a castShadowFrom={"shadowGeneratorName"} ?

Thank you

[brianzinn]

There is a property called shadowCastChildren that may work for you that is not obviously documented:
https://github.com/brianzinn/react-babylonjs/blob/master/docs/api.md#shadowgenerator

What you are able to do can be seen in this PG - the IcoSpheres can be shown/hidden and also the model mesh names are unknown:
https://github.dev/brianzinn/react-babylonjs/blob/master/storybook/stories/babylonjs/VR/withVr.stories.js

[brianzinn]

if you didn't want to declaratively nest the dynamic meshes as components and have another idea please share - your castShadowFrom could work then possibly, but I need to find the lights then and also that is an interesting use case as the shadow casting has a deferred creation (it cannot be created until after the light is created)..

[snippet-nicotine]

Thank you @brianzinn,

I tried the shadowCastChildren, but the meshes created don't share the same rootNode.
The example with the ref is very interesting, I think I will go for that in my case.
Meanwhile, I use the shadowCastersExcluding={[excludedNames}] as the ones I want to exclude are few and knowns.

Thank you for these great library you share with us, I am refactoring an house editor and the code is so much readable with the declarative way!!!

[brianzinn]

Glad you got it working with shadowCastersExcluding - that's how the the example above used to work, so I was excluding meshes from the environment:
19e9683#diff-4cf018868b62f6fadd55bf8aabebe3a376ee7190b8bd2b32ec58bdfb31053358L61

Thanks for your kind words - is your house editor online? Would be interesting to see what you are making!