# Raytracing says "object.layers is undefined"

**URL:** <https://discourse.threejs.org/t/raytracing-says-object-layers-is-undefined/63342>\
**Category:** Questions\
**Tags:** raytracing\
**Created:** [March 28, 2024, 4:52am UTC](https://discourse.threejs.org/t/raytracing-says-object-layers-is-undefined/63342 "2024-03-28T04:52:30Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![threejsman](https://avatars.discourse-cdn.com/v4/letter/t/7ba0ec/32.png) [@threejsman](https://discourse.threejs.org/u/threejsman)\
**Post date:** [March 28, 2024, 4:52am UTC](https://discourse.threejs.org/t/raytracing-says-object-layers-is-undefined/63342/1 "2024-03-28T04:52:31Z")

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Hello once again,

when I change the raytracer from

var intersects = raycaster.intersectObject( scene, true );  
( which yields results )

to

var intersects = raycaster.intersectObject( objectsarray, true );

I get this error- message **“object.layers is undefined”**.  
The objectsarray- array is populated at the same time the object is added to the scene.

scene.add( object );  
objectsarray.push( object );

Even  
var intersects = raycaster.intersectObject( scene.children, true );  
gets the same error.

Please, telle me what I am doing wrong.

BTW:  
The objects I would like to be seperately raycasted are animated Mixamo characters.

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<div class="post-metadata">

**Author:** ![mjurczyk](https://yyz1.discourse-cdn.com/flex035/user_avatar/discourse.threejs.org/mjurczyk/32/10995_2.png) [@mjurczyk](https://discourse.threejs.org/u/mjurczyk)\
**Post date:** [March 28, 2024, 4:56am UTC](https://discourse.threejs.org/t/raytracing-says-object-layers-is-undefined/63342/2 "2024-03-28T04:56:48Z")

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See [first argument of .intersectObject](https://threejs.org/docs/index.html?q=raycas#api/en/core/Raycaster.intersectObject) vs [first argument of .intersectObjects](https://threejs.org/docs/index.html?q=raycas#api/en/core/Raycaster.intersectObjects) 👈

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<div class="post-metadata">

**Author:** ![threejsman](https://avatars.discourse-cdn.com/v4/letter/t/7ba0ec/32.png) [@threejsman](https://discourse.threejs.org/u/threejsman)\
**Post date:** [March 28, 2024, 5:15am UTC](https://discourse.threejs.org/t/raytracing-says-object-layers-is-undefined/63342/3 "2024-03-28T05:15:46Z")

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Thank you THAT very, very much.  
That’s something I could have overlooked for weeks.  
I like you, you are somewhat usefull.

And THaNK YoU VErY MUCH again…!!