Animation from Blender

[Shivaan Keldon]

Hi,

 

I try, since yesterday, to start an animation loaded from Blender, but nothing appens.

 

All my scene is loaded from blender. There's camera, lights, walls, a character with its rig, and an animation set for "walk".

After reading this tutorial (https://github.com/BabylonJS/Babylon.js/wiki/How-to-use-bones-and-skeletons), I decided to loop manually into scene.meshes to retreive the character, and attach the scene.skeleton[0] to it. I've checked that all vertex groups are ok in Blender, and that each vertex has maximum 4 bones influence (not so easy).

 

The mesh _vertexBuffer has only color, normal and position, but doesn't have matrices weight or matrice indices. Is it the problem ?

How can I generate this values ? Is there something to do in Blender to import them automatically ?

 

Here's the light version of my code :

<script>var canvas, engine, scene, player;function render(){    scene.render();}window.onload = function(){    canvas = document.getElementById("renderCanvas");    engine = new BABYLON.Engine(canvas, true);    BABYLON.SceneLoader.Load("", "testroom.babylon", engine, function (nscene) {        scene = nscene;        scene.executeWhenReady(function () {            for(var i=0,n=scene.meshes.length; i<n; i++) {                if(scene.meshes[i].name=="player"){                    player = scene.meshes[i];                    player.skeleton = scene.skeletons[0];                }            }            scene.beginAnimation(player.skeleton,0,60,true,1.0);            engine.runRenderLoop(render);        });    });};</script>

Thanks

 

PS: Babylon is really great and has a good render engine. But it could be great to have an API and more examples when building a game from Blender. But well, it's still young and I think it will come after ^^

[GameMonetize]

Yes this is the problem Do you have an armature linked to your mesh ? this is how we detect bones and add weights into the .babylon file

[Shivaan Keldon]

Yes, there's a human skeleton in blender, and a modifier to apply it on the character

 

Here's a screenshot of Blender :

 

Do I have to apply the armature ?

[GameMonetize]

Yes you have to

 

But my knowledge of Blender is really limited alas

[Shivaan Keldon]

Applying changes nothing in babylon but the animation doesn't work in Blender anymore :-/

[GameMonetize]

It should at least work in Blender:)

[Shivaan Keldon]

The armature moves but not the mesh...

 

I'm quite new in Blender and maybe I do something wrong :-/

[ProfessorF]

In Autodesk Maya, you have to attach the skeleton to the model.  I'm sure in Blender it's the same way--you need to attach the skin to the model.

[Red Ruler]

Hi

Remove armature modifier. Then select the model, and then the Armature. Control+P -> Armature Deform -> With Automatic Weights. It'll work.