How to use 3D model in already existing scene

[yerzhik]

As it says in tutorials, if I am using some model I can load scene by using:

BABYLON.SceneLoader.Load("", "scene.babylon", engine, function (newScene) {  // Wait for textures and shaders to be ready  newScene.executeWhenReady(function () {  // Attach camera to canvas inputs  newScene.activeCamera.attachControl(canvas);  // Once the scene is loaded, just register a render loop to render it  engine.runRenderLoop(function() {  newScene.render();  });  });  }, function (progress) {    // To do: give progress feedback to user});

But I already have one scene and objects on it. How can I add that 3D object with several duplications to existing scene, with collisions supported?

[Temechon]

Try this : 

 

http://www.html5gamedevs.com/topic/3200-pick-mesh-in-the-scene/?p=20710

 

Importmesh imports a specific mesh in an existing scene. If you want to import all meshes from an existing 3D model, your first parameter shoulod be an empty string ("")

[yerzhik]

Try this : 

 

http://www.html5gamedevs.com/topic/3200-pick-mesh-in-the-scene/?p=20710

 

Importmesh imports a specific mesh in an existing scene. If you want to import all meshes from an existing 3D model, your first parameter shoulod be an empty string ("")

Thank you, it worked. But how about collisions?

Usually the physics is done by calling:

 

box.setPhysicsState({ impostor: BABYLON.PhysicsEngine.BoxImpostor, mass: 2, friction: 0.4, restitution: 0.3 });

 

But in case of a non standard figure, is there a way to create Impostor for a 3D model?

[yerzhik]

I have tried using 

BABYLON.PhysicsEngine.MeshImpostor, but its so slow and finally it freezes. 

Could someone tell me what can be done here?

Using BoxImpostor = its is not natural when moving, rotating.

[Temechon]

I would try to create a compound impostor : http://blogs.msdn.com/b/eternalcoding/archive/2013/12/19/create-wonderful-interactive-games-for-the-web-using-webgl-and-a-physics-engine-babylon-js-amp-cannon-js.aspx

 

It depends of your 3D model, but try to get several simple impostors (box or sphere) attached to your model.

For example, a character can have a sphere impostor linked to its head, a box character linked to its body, ...

 

It won't be pixel perfect (as you said, very time-consuming) but it will do the trick.

 

You can check this too : http://www.andybeaulieu.com/Home/tabid/67/EntryID/238/Default.aspx