Allow easy definition of custom material exporters for project forks. about exporters HOT 8 CLOSED

We could add a non serializable property to the babylon material and hold a reference to the max material there

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I have created a draft here.

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Looks really good to me!

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I will continue with this, then. I had some problems with the draft as-is, I will update it next week.

There are some additional problems I face right now when building an actual material exporter, which will require some changes to the exporter code. Most of these are related to the fact a lot of functionality is not available outside the BabylonExporter class, like logging and texture building.

I have one question: at this point, it is not so easy to export a glTF material with this, as the MaxMaterial information is not available once we get to the gltf exporter. The intermediate materials are (currently) not suitable to store this data, as we have more data than is defined in the existing babylon materials. We have also planned a glTF material extension.
However, the 3dsMax material information is not available when we get to the glTF exporter. Do you have any ideas on how to refactor this, if you even want that? If not, I'll figure something out for our purposes eventually.

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I've implemented this for the glTF exporter pipeline and am successfully using it. There is no doubt it is incomplete, but it is functional.

The babylon version is still a draft and I won't have time to develop that part.

Do you want me to submit a pull request, or keep it where it is for now?

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If it is incomplete I would prefer not merging it because we will need to maintain it

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Right, that makes sense.

From what I can tell, the only missing feature at this point is being able to combine different textures into the correct layouts (e.g. putting metal and roughness together in one texture, might the material have them separate). I'm not sure if I will need it.

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Closing for now

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