amp-3d-gltf: problems with validator rules

[mixtur]

What's the issue?

Validator complains

• when alpha=true
• on every camel-cased attribute

How do we reproduce the issue?

I tried to add sample for amp-by-example and stumbled upon this

this html claimed to be broken

<amp-3d-gltf layout="fixed"
             width="320"
             height="240"
             alpha="true"
             antialiasing="true"
             autoRotate="true"
             enableZoom="false"
             src="https://webgears-3d.github.io/3d-gltf-static/m/DamagedHelmet.glb"></amp-3d-gltf>

errors:

components/amp-3d-gltf/source/index.html:43:2 The attribute 'alpha' in tag 'amp-3d-gltf' is set to the invalid value 'true'. (see https://www.ampproject.org/docs/reference/components/amp-3d-gltf)
components/amp-3d-gltf/source/index.html:43:2 The attribute 'autorotate' may not appear in tag 'amp-3d-gltf'. (see https://www.ampproject.org/docs/reference/components/amp-3d-gltf)
components/amp-3d-gltf/source/index.html:43:2 The attribute 'enablezoom' may not appear in tag 'amp-3d-gltf'. (see https://www.ampproject.org/docs/reference/components/amp-3d-gltf)

[mixtur]

For alpha I just wrote wrong rule.
Need help with other attributes.

[aghassemi]

@honeybadgerdontcare, could you please help @mixtur fix https://github.com/ampproject/amphtml/blob/master/extensions/amp-3d-gltf/validator-amp-3d-gltf.protoascii ? I wonder if case-sensitivity has something to do with these failure.

Let's ensure the validator test is updated here: https://github.com/ampproject/amphtml/blob/master/extensions/amp-3d-gltf/0.1/test/validator-amp-3d-gltf.html as well.

[Gregable]

I believe this can be closed then.