Objects rotation

Hi!

How to, please, either block the background (canvas) horizontal rotation or limit it?
I tried several settings in Blender and in the puzzles’ set, and didn’t find the way to.
I didn’t find the object “Canvas” within the puzzles to set the canvas’ horizontal rotation permission to certain values, including “zero”.

Hi!

Sorry if I wasn’t clear enough
If in the Blender file of the app I put either a background image, fixed though, or an equirectangular one, and if in the app I drag the background it’s always rotating, at least horizontally (because in Blender we can set the vertical rotation to our wishing, but apparently not the horizontal one). I didn’t find the way to either have no horizontal rotation or respecting a certain angle…
I would like to be able to rotate a 3D object but not the background whenever it carries an image, either normal or equirectangular.

The answer is maybe obvious, but my last neuron didn’t find it

Please, don’t hesitate to question more if I’ve not been clear enough again

Hello and thank you,

Please, excuse-me if I am much too demanding; can you, please, develop a bit further: “Make the background a model and parent it to the camera”. This has to be done in Blender? Model?… Proxy?…

Thank you Yuri!

I did that and it didn’t work out well. But I think I didn’t do it the right way (maybe with a too large image), as it definitely should work.
I’ll go back to school