How do I rotate beyond the 'limit' vertically?

[jsegeren]

Hi, I want to rotate the model beyond the standard 'vertical' limit.
Currently it looks like phi = 2.75 rad is the limit. I want to effectively rotate more than "2.75 rad".
Actually, I want to be able to rotate in both directions (horizontal aka theta and vertical aka phi) "infinitely".
Any suggestions on how to do that?
Thanks!

[elalish]

We don't allow you to rotate the model upside-down, since that can be confusing to users. However, you can set the min and max camera-orbit to get full 0-180: https://modelviewer.dev/docs/#entrydocs-stagingandcameras-attributes-maxCameraOrbit

If you really need the model upside down, you can use the orientation attribute.

[jsegeren]

Hey @elalish - thanks, tried making a few minor adjustments, but it didn't work.
Looks like the change could require a bit more knowledge of the codebase - a bit beyond what I can take on in very short-term.
Would your team possibly consider it as a DCR or feature request?

[elalish]

You're the first to ask for it, so it's a fairly low priority for us, but yes, it's been noted. It will happen much sooner with your own PR than waiting for us.

[daniel-packard]

not the first :)

#3219

I'm happy to dig in and PR if you're open to the change

[elalish]

Absolutely, always open to a PR! Thanks.

[Shalwaban]

sounds like the trackball controls
https://github.com/mrdoob/three.js/blob/master/examples/jsm/controls/TrackballControls.js

[jsegeren]

Fair enough. Thanks!

…

On Mon, Apr 4, 2022, 10:16 AM Emmett Lalish ***@***.***> wrote: You're the first to ask for it, so it's a fairly low priority for us, but yes, it's been noted. It will happen much sooner with your own PR than waiting for us. — Reply to this email directly, view it on GitHub <#3314 (reply in thread)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAUT2UWCPHUPOEEKKMZRV53VDMPYFANCNFSM5RZS5V7Q> . You are receiving this because you authored the thread.Message ID: ***@***.***>

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[protokoll-studio]

Hello. Any news about the possibilty to rotate at 360° in any direction? That would be really nice

[elalish]

Can you give a link to a 3D UX (live or video) that you like? We intentionally keep model UP (+Y) always pointing to the top of the screen so users don't get lost. You can always turn off camera-controls and make your own pointer event listeners. You might be interested in my blog article on 3D UX and the design philosophy I've used: https://elalish.blogspot.com/2022/04/3d-interaction.html

[dsvatunek]

I would like to use it for chemical models and basically every chemical model viewer (e.g. 3Dmol.js) allows you to rotate in every axis indefinitely. There's no up or down in these models so it makes sense to be able to rotate in any way.

[elalish]

You're welcome to grab the trackball snippet from my blog post above, but our API won't allow going past the poles because it's not as simple as just expanding the allowable values.

[protokoll-studio]

Hey ! I tried your trackball solution. It worked but now I need to add the possibility to zoom. But nothing is impossible ;)
I would be a nice improvement if we can have a native solution.

[elalish]

Thanks, but we have to be opinionated about our UX to keep our quality high. As a user, I would still strongly encourage you to pick a sensible up direction, as it makes it easier to orient yourself in 3D. My blog post has more reasons.