Improve 3D Viewport Navigation on Android (Touch Controls like Prisma3D & Magic Engine)

[AllanFuego]

Hey everyone! 👋

I’ve been using Godot 4 on Android, and I feel like the 3D viewport navigation could be improved. Right now, it relies on a dual-joystick system, which is quite difficult to use for precise movement. Many mobile 3D modeling apps like Prisma3D and Magic Engine offer smooth touch-based navigation, making editing much easier.

Feature Request:
I propose adding an alternative navigation mode that allows intuitive touch controls:
✅ One-finger drag → Rotate the camera
✅ Two-finger drag → Pan the viewport
✅ Pinch zoom → Zoom in/out
✅ Double-tap on an object → Focus on it

This would greatly improve usability for mobile users who want to do 3D development on Android. It would be helpful to have this as an optional mode in the Editor settings.

Why is this important?
It makes 3D scene editing much smoother on touchscreens.

It follows a standard touch-based navigation used in other mobile 3D apps.

More people could use Godot on Android for 3D game development without external tools.

What do you guys think? Would love to hear feedback from the community and see if this is something that can be considered for a future update!