NodeMaterial change based on the mesh?

Questions
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1

Hi

I prepared a startup PG for my question.

My question is:

Is there a way in NodeMaterial from the snippet in the PG, to change it in such a way, that one mesh will be blue and the other red? With one shader, based on the mesh, maybe name or something, but not based on the position (this I know and it did not fit my project?

And BTW congrats, version 5 :slight_smile: wooohooo

Regards
Peter

2

You can clone the material and update one of the block by using getBlockByName:

https://playground.babylonjs.com/#MRTBLQ#1

Note that I have renamed some of your blocks in the NME to be able to access them by name.

3

I’m doing it like that temporarily like this, but the material is compiling again or at least computed again and it hits performance.

That’s why I said, “With one shader”. I do not want to clone it, it’s too complex to clone it cause it has too big performance hit, unfortunately.

is there a different way? It does not have to be with Lerp or anything as long as it switch something in material. “If” would be good, but I know why you do not want to introduce it and it’s fine as long as there are alternatives.

Regards
Peter

4

If you want to use a single material you can try something like this:

https://playground.babylonjs.com/#MRTBLQ#3

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5

That looks super promising :slight_smile: I will give it a go and let you know about the result today :slight_smile:

Thanks :slight_smile:

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6

It worked. I mess around with it a little and it actually did what was promised :slight_smile:

Thank you for your help :slight_smile:

Regards
Peter

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