Attach mesh to bone

[dbawel]

So,

 

Does anyone have an example where a mesh is connected as a chaild to a bone parent?  And if so. I recommentd that everyone checks this out and understands how to use it as it is a very key function essential to many scenes and projects.

 

Thanks for bringing this to light again.  As it needs to become a standard function used in many projects and games.

 

DB

[Dad72]

You mean this?

 

http://www.babylonjs....com/#11BH6Z#18

 

Use: sphere.attachToBone(skeleton.bones[34], dude);

 

My question is how I recover the bone by name rather than by index like this: skeleton.bones[34]

[Dad72]

I find how.
 
I create a search function of the index by name. 
 

var searchBoneByName = function(skeleton, searchBoneName) {    var index = 0;    for (var i = 0; i < skeleton.bones.length; i++)    {    	if (searchBoneName = skeleton.bones[i].name) {    		index =  i;		    		break;    	}		    }    return index;};

thereby making

sword.attachToBone(skeleton.bones[searchBoneByName(skeleton, "hand_left")], character);

[gryff]

dad72: once the mesh is attached how would you control its rotation? You don't want the sword sticking into a character.

 

cheers, gryff

[Dad72]

I guess you can move the object :

sword.position = 

sword.rotation =

 

maybe Deltakosh can enlighten us on.

[gryff]

Ty dad72 Your code has given me something to play around with.

 

And another thought, do you know if there is an equivalent  "detachFromBone" - so a character could change weapons?

 

cheers, gryff

[Gugis]

You can set it's parent to null

sword.parent = null;

[Dad72]

Yes Gryff.

detachFromBone() 

http://doc.babylonjs.com/classes/2.2-alpha/AbstractMesh#detachfrombone-rarr-void

[gryff]

Merci beaucoup dad72

 

cheers, gryff

[GameMonetize]

Fixed

[petemac]

Does it work with moveWithCollisions?

[GameMonetize]

What do you mean?

[petemac]

I tried attaching swordMesh to mymesh skeleton bone:

 

swordMesh.attachToBone(myMesh.skeleton.bones[7]);

 

then moving myMesh with:

 

forwards = new BABYLON.Vector3(parseFloat((Math.sin(myMesh.rotation.y)) / speedCharacter) * scene.getAnimationRatio(), 0, parseFloat((Math.cos(myMesh.rotation.y)) / speedCharacter) * scene.getAnimationRatio());

myMesh.moveWithCollisions(forwards);

 

however the swordMesh does not follow.

 

Also the swordmesh looks like the normals have been flipped around.

I can see the inside of the sword.

[GameMonetize]

for the normals issue, just set swordMesh.material.scalingDeterminant = -1;

 

for the main question: this should work as you can see here:http://www.babylonjs-playground.com/#11BH6Z#33

[petemac]

Thank you deltakosh!

 

I played around with your scene and indeed it does work with moveWithCollisions

 

I investigated further in my scene and found that I missed the second parameter of 

swordMesh.attachToBone(myMesh.skeleton.bones[7]);

changed it to:

swordMesh.attachToBone(myMesh.skeleton.bones[7],myMesh);

and it worked!

[GameMonetize]

Wonderful