CODEWITHSUNDEEP
javascriptblenderbabylonjs
yann
yann

Reputation: 51

babylon.js meshes get same material

I'm using BabylonJS V3 with Blender 2.79 to create product visualizations. Many times, it is necessary to define more complex shaders in the JS code. I'm using lines like

scene.meshes[1].material.emissiveColor = new BABYLON.Color3(1, 0, 0);

to define the shaders after export. Usually every mesh can get it's own shader this way. Unfortunately in one case, the shader of multiple meshes is overwritten. Did someone have a similar problem? All meshes are named individually, they all have a basic (individual) shader from blender. They don't share any datablocks, no instancing or duplication was done. I'm thankful for every hint.

Edit

It seems, the error occurs with the new version (3.0), updating to 3.1 fixes the problem, but introduces errors with the arc-rotate camera. As soon as you click on the canvas, to rotate the view, you can't release the mouse anymore. Are the latest stable releases buggy?

Edit 2

After some in depth trouble shooting we came to the conclusion, that the 3.0 and 3.1 versions and/or their exporter plugins are faulty. Even in the simplest testscenes, this error occurs. Alongside other problems, like broken cameras and displaced geometry.

Upvotes: 5

Views: 1291

Answers (1)

David Catuhe
David Catuhe

Reputation: 1767

Be aware that by default materials are shared for performance reason. So this is probably not a bug but a feature. If you want to change the material for a single mesh you will first need to clone it

Upvotes: 1

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