Nrthugu

I am trying out on aframe physics

I can apply static-body properties on a shape object:

<a-sphere color="red" width="2" height="2" depth="2" position="2 1 -5" rotation="45 0 0" static-body></a-sphere>

But not on a a-entity object, i am still able to move through the object:

<a-entity static-body obj-model="obj:models/lamp_mesh.obj;mtl:images/lamp_mesh.mtl" rotation="0 90 0" position="5.46 0 0" animation></a-entity>

Is it only possible to apply the static/dynamic properties on a shape object?

Or i have done something wrong somewhere

I seen many tutorials of physics on shape object but none on a-entity object.

Please advice.
Thanks in advance.

There should be no issues with using static-body with any <a-entity> elements.
Here you have a link, where i use it with a <a-entity> with a gltf model.

There is a useful flag debug: true for the physics component:

<a-scene physics="debug: true">

If you don't see a wireframe around your object, then its possible there is no physics body attached to it.

Make sure your model is loaded properly, check the wireframe around it, if there is none, you can:

1) Convert your .obj model to the web standard .gltf (official converter here)

2) Create the physics bodies manually. From the docs:

<a-entity gltf-model="src: mug.glb"

      body="type: dynamic; mass: 5; shape: none;"

      shape__main="shape: cylinder;

                   height: 0.36;

                   radiusTop: 0.24;

                   radiusBottom: 0.24;"

      shape__handle="shape: box;

                     halfExtents: 0.15 0.18 0.04;

                     offset: 0.4 0 0;">

</a-entity>