Grouping - parent child relationship

[BabylonFan]

Hello,

 

I have a problem regarding the parent - child relationship. I have imported a 3d object from blender and I would like to bind it to an invisible mesh (box) so it would move. It doesn't work no matter which way I try it. Here's the code:

 

var monster;

var parentMonster = BABYLON.Mesh.CreateBox("p", 3, scene);

 

            BABYLON.SceneLoader.ImportMesh("", "assets/", "monster1.babylon", scene, function (newMeshes1) {

                monster= new BABYLON.StandardMaterial("assets/", scene);

                monster.diffuseTexture = new BABYLON.Texture("assets/monsterlayer1.bmp", scene);

                monster.diffuseTexture.uScale = 1;

                monster.diffuseTexture.vScale = 1;

 

                for(var i = 0; i < newMeshes1.length; i++) {

                    newMeshes1.isVisible = true;

                    newMeshes1.checkCollisions = true;

                    newMeshes1.scaling = new BABYLON.Vector3(1, 0.3, 1);

                    newMeshes1.position = new BABYLON.Vector3(30, -8, 2);

                    newMeshes1.material = posast;

                } 

            });

            monster.parent = parentMonster;

 

            parentMonster.position = new BABYLON.Vector3(30, -8, 2);

            parentMonster.isVisible = false;

 

Please help, I'm desperate.

Thank you.

[GameMonetize]

hello,

 

just move parent affectation inside the callback:)

 

importMesh is asynchronous (hence the callback)

[BabylonFan]

Okay, I did it and now it loads, but it still doesn't move like the parent does.. what do I do now?
I also tried to use the translate function but it also doesn't work, I get a type error: monster.translate is not a function

 

monster.translate(BABYLON.Axis.Z, -0.05, BABYLON.Space.WORLD);

[iiceman]

Let's assume your monster is a cute rabbit, then this here is what you wanna do, right: http://www.babylonjs-playground.com/#GLYMS

 

Seems to work to me... maybe you can show the problem with the help of the playground.

[BabylonFan]

I don't understand how you change the position of the box here? I would like something like this, yes, it's hard to show it cause its a whole game

[fenomas]

You're setting parent on a material, rather than on the meshes.

 

Fix:

for(var i = 0; i < newMeshes1.length; i++) {    newMeshes1[i].parent = parentMonster;} 

[dbawel]

Fenomas' solution is much cleaner, and he of course does answer you're question.  In addition, I would use:

 

mesh.visibility = 0;

 

instead of:

mesh.isVisible = false;

 

This allows you to manipulate all attributes of a mesh and it's children although the surface of the mesh is not visible. 

[iiceman]

Ah, I just copied from the code in the initial post, didn't even expect that "monster" could be a material

[BabylonFan]

 

You're setting parent on a material, rather than on the meshes.

 

Fix:

for(var i = 0; i < newMeshes1.length; i++) {    newMeshes1[i].parent = parentMonster;} 

 

I did this but now the model doesn't show on screen.. 

[iiceman]

New example: http://www.babylonjs-playground.com/#GLYMS#2

 

If it doesn't work with your code and you don't get any error, maybe you can put your code online so we can check it out. But it should work the same way as this playground.

[dbawel]

I just tried Iceman's code with both visibility operations and a simple mouse event to move the character around, and the character of course is still visible.  It appears you have the answer from the iceman.