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Merge mesh and multimaterial


Dad72
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I found run bug when we merge two objects that are a multimaterial.

The object is well merged. Once I serialize it to record it and reload my scene. Some of the textures are missing.

On the first image, these are my two objects that I want to merge. There is a metal ring around.

232053358_2018-09-1616_08_00-Greenshot.png.6eccbcb3f5be4b69a40176df334e872c.png

But once merge, and serialize the object merge, the metal has disappeared.

1739472021_2018-09-1616_08_39-Greenshot.png.ca55224e3d5ff9eadfa1bf561006cead.png

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@MarianG,

No, it did not work. this solution took the iron texture on the first model and texture 2 on the second model.

Why does not this merge correctly?

Compare with the first image of the barrel :

195972157_2018-09-1721_42_51-Greenshot.png.4e5c67abcb12db2d8370c85cb13986c2.png

In your PG example, each model has its textures or colors.

In my case the barrel each model has 2 textures, but the gold of the fusion I lose the second textures.

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It's not necessary. It is to offer this possibility to the users of my editor.

My editor is for creating MMORPGs. Performance is therefore important for future users. I would like him to be able to merge objects if he wishes, just like the possibilities to create instances of objects, of group (parent/children) and many other useful things.

It's not for my own needs, but I'm sure it will be useful to my editor.

I will try to make a PG. Thanks for your help.

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I made you a PG here.  I struggled to load the model, the playground does not want more external file. So I used 'data:' and same thing I could not load the textures remotely. So I took texture from the playground.

Before, I could load remote models with http instead of https, but now it will be difficult to make PGs with our own model if it works more. :(

http://playground.babylonjs.com/#1I4KHI#4

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Thanks for the PG,

from the implementation of mergeMeshes it doesnt look like merging meshes the way you expect is supported right now.

Created github issue to track this: https://github.com/BabylonJS/Babylon.js/issues/5197

In your playground you are merging 2 barrels that have the same material on both of them, is merging 2 different objects with different materials also a scenario to you?

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When I test with two different objects, I have the same problem, it is the first sub-material that is taken into account on all the merge objects.

This only works if the object has only one texture, but not several sub-material.

Thank you Trevor

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