xeon

Well…what you are requesting can be done…the question is it something that will really work for you.

You could use the HTML puzzles “get event property” and then use the touches.page and then write your logic around monitoring the x and y positions of your cursor and then rotating the object. However, it seems you are trying to create an HTML menu so would have to have a way of ignoring mouse up and down events when clicking the HTML buttons and other logic to support it.

The other problem you find is that rotating a 3D object can be less performant than moving the camera so depending on your scene, number of triangles, number of objects, redraws, textures sizes…etc. this may be more than some devices can handle but you will have to determine that.

Then there is the general user experience when navigating these sort of webgl demos, people are used to navigating and spinning a camera (they don’t think of it is a camera)….so doing other things (if not an FPS game or game function like) the users will feel a bit lost.

If your goal is to keep the lighting and the background consistent as the object is rotated, there are ways to solve that too.

I have seen another approach too…which is placing a transparent 3d plane in front of the object you want to rotate…making the plane the size of the view port and then assigning the drag rotate to that plane to rotate the object. There are issues with this approach to and I don’t recommend it either.

I do recommend finding a way to use the camera to your advantage.

You have a couple of options. The most direct is the DragRotate puzzle – https://www.soft8soft.com/docs/manual/en/puzzles/Events.html#drag_rotate

This will allow the user to click on the 3D object and rotate that object.

Can you send a link to one of the projects thats having an issue so we can examine it?
Are you aware that the BSDF shader in 3.5 through 4.2 has changed and if using an older shader from 3.5 and then export it from 4.2 to V3D you will need to update your principle BSDF and other new nodes to make them look they way they used to?

So the character can move freely and even off the plat form. But just can’t fall through it? Does the character jump?

Give this a look: https://www.youtube.com/watch?v=Ad8Lz5b1I6A

Multi screen output can be done using Verge3D but is dependent on how your hardware is configured. If you are configuring your screens in a mural . An example might be a 2×4 grid making a 8K display out of HD displays…in which case you are using a multiplexer to deliver the content across those displays. Or if you are wanting a large screen on one side of the exhibt controlled by a smaller touch panel in a other portion of the room then it too will depend on your hardware configuration. If you are using two independent computers or if its being controlled by one. In these cases it will also depend if your content and app are stored local or on a webserver and how you have delievered the application …. electron app or web app.

You can have multiple canvas in one app that can be adjusted so they are displayed on independent screens. This may be the easiest method since your hardware list is known and will not change in a museum installation. There are other methods and options as well but to limit the amount of programming this may be a fast option.

Before going down the road of creating a museum interactive be your content and app are not needing to be run through their CMS or their web server and get all that worked out prior to developing your app as that will impact the best way to approach the problem.

In my experience with V3D physics has many use cases. The pinball game if played long enough will uncover some issues with the demo app. I have not dug into it deep enough to determine if its a game engine issue or a demo programming issue. This sort of thing will be up to you the developer to determine if the interaction the physics engine provides is sufficient for your needs. I believe V3D uses the Bullet engine called Ammo.JS. You can find many examples of it being used in Three.JS to get a better idea of what you can do with it in Verge3D.

I think if you go into it with a realistic understanding of how the physics engine works and see how its being used in other demos you might be very pleased.