solved BABYLON.NullEngine material issue

[Arte]

Hi all,

On server side I'm creating scene.

Creating meshes -> applying materials (StandardMaterial) -> applying and rotating texture (diffuseTexture).

After all of this sending scene (SceneSerializer.Serialize) to client side and loading with assetsManager.

But all meshes have same material as last loaded mesh.

Do I need to reapply materials on client side or I'm doing something wrong? I never played with materials on server side.

Any suggestions are welcome and appreciated. 

[dbawel]

@Arte

Do you have sample code or more specifics so everyone can fully understand how the code is sequenced?

DB

[Arte]

@dbawel All scene created same as normal on client side.

// Apply materials

let mate = new BABYLON.StandardMaterial("material", scene);
mate.specularPower = 200;
mate.specularColor = new BABYLON.Color3(0.5, 0.5, 0.5);
ob.material = mate;
ob.material.diffuseTexture = new BABYLON.Texture('some.url',scene);

// Send file

JSON.stringify(BABYLON.SceneSerializer.Serialize(scene));

// Load file 

let assetsManager = new BABYLON.AssetsManager(scene);
let mesh = assetsManager.addMeshTask("", "","","data:"+d.data);
assetsManager.load();

[dbawel]

@Arte

Are you cloning meshes? I assume you know the result of this. However, if you're loading a new and different geometry, then a little more code should help see what the issue is. So far, I don't see a problem, but don't know anything about the meshes.

It used to be that an array of meshes would take on the attributes of the first mesh if they were all contained in the same array.

DB

[Arte]

No cloning, all meshes I'm creating from scratch.

Same code on client side working as expected. 

let obPart = BABYLON.MeshBuilder.CreateBox("", {height: meta.param.z.val, width: meta.param.x.val, depth: meta.param.y.val,sideOrientation: BABYLON.Mesh.DOUBLESIDE}, scene);
obPart.id=obPart.name=obPart.uniqueId;

obPart.setPivotPoint(new BABYLON.Vector3(meta.pivot.x,meta.pivot.y,meta.pivot.z));
obPart.position=new BABYLON.Vector3(meta.pos.x.val, meta.pos.z.val, meta.pos.y.val);
obPart.rotation=new BABYLON.Vector3(meta.rot.x.val*Math.PI/180,meta.rot.z.val*Math.PI/180,meta.rot.y.val*Math.PI/180);
let mate = new BABYLON.StandardMaterial("material", scene);
mate.specularPower = 200;
mate.specularColor = new BABYLON.Color3(0.5, 0.5, 0.5);
obPart.material = mate;

obPart.material.diffuseTexture = new BABYLON.Texture(meta.mat.url,scene);

Edited July 7, 2018 by Arte
added file

[Arte]

@dbawel "@It used to be that an array of meshes would take on the attributes of the first mesh if they were all contained in the same array." 

That is exactly what happening. How I can go around this?

[Arte]

Materials (texture) is sorted 

Changed order

ob.material = material;

ob.material.diffuseTexture = new BABYLON.Texture(url,scene);

To

ob.material.diffuseTexture = new BABYLON.Texture(url,scene);

ob.material = material;

 

But material.diffuseTexture.wAng is not working??? (all texture.wAng reading from first texture) 

[dbawel]

@Arte

I'm not certain if there is a way to overcome this "optimization" within babylon. However, I know there is a solution that works; just don't want to say which method is the best since I haven't had to deal with this in some time. I've seen posts on Stackoverflow where @Deltakosh addresses this, so hopefully he'll see this and respond with the best method for your needs.

DB

[Guest]

Can you create a PG with the client code? I will then try to fix it on server side (with nullengine) to understand why all textures are the same

[Arte]

@Deltakosh

https://www.babylonjs-playground.com/#FVWA7W

For some reason BABYLON.SceneSerializer.SerializeMesh not working. Line 97-100

 

Added Client side code, Line 106-121

https://www.babylonjs-playground.com/#FVWA7W#2

[Guest]

For the SerializedMesh:  the code cannot work as the position is not a Vector3 (line #18): https://www.babylonjs-playground.com/#BN19JI

I'll check why it does not work with nullengine

 

[Guest]

Are you sure the PG is correct? I cannot get an export with textures even in the PG

[Guest]

Ok found why: https://www.babylonjs-playground.com/#BN19JI#1

I also found the issue

will be fixed by next nightly :)

[Arte]

@Deltakosh You're a Superstar. ???