Assigning collision detection on imported meshes

[larsiii23]

Hi!

 

I'm currently working with a project where I decided to use babylon.js, and is a newbie on the framework.

 

I have imported a BIM-model which consists of hundred of meshes into babylon, and wondered if there is a way to check collisions for all these meshes without have to get each mesh by name,

var mesh = getMeshByName("meshName");

 and then assign it

mesh.checkCollisions = true;

Is there a way to loop through all the importet meshes without getting them by name?

[GameMonetize]

Hello and welcome,

 

you can also browse the collection with scene.meshes (which is an array of all meshes in your scene)

[larsiii23]

Thanks. Exactly the solution i was hoping for 

 

I implemented the checkCollisons in the callback, like this:

BABYLON.SceneLoader.ImportMesh("", "", "1932.babylon", scene, function (newMeshes, particleSystems, skeletons){for(var i=0; i<scene.meshes.length; i++)    scene.meshes[i].checkCollisions=true;});

After this change I feel the "game" got more laggy however. Is there a better (performance enhancing) way to this. My scene consist of a 3 floor house I want to move around in, in a fps way.

[GameMonetize]

The laggyness can come from the number of collisions involved. So I suggest for complex objects to create an impostor invisible box that will represent the collision box

[vahith]

hi Del;
how we can create the invisible  box for collision, i am also facing same, could you suggest me some testcase and example..

[GameMonetize]

the idea is to get mesh.getBoundingInfo().boundingBox to get the bounding box and then use Mesh.CreateBox() and define it as collidable 

[RaananW]

Check this topic here, might get you going - http://www.html5gamedevs.com/topic/13095-putting-an-object-into-a-box-of-the-size-of-the-object/