How to know my sprites resolution on final screen

Unity Engine
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1

I’m pretty of a beginner in Unity. There were two questions about the resolution that confused me for a while.
For example, I’m building a 2D game scene(pixel arts and final resolution 4:3), so:
-I create a canvas (1280x960) and connect it to the camera.
-While designing, I use some simply filled sprites as placeholders.
Here’s a question with two parts:

  1. I put the sprites outside the canvas. For example, Pos: 1, 2, 0; scale: 2, 3, 1. So I need to create a 2:3 detailed custom sprite to replace it later but what exact resolution should I use?

  2. If I put the sprites inside the canvas. I don’t know if it’s recommended to do, but when I try to move the object through the script. The XYZ value doesn’t count as the inspector shows.

  • For example, the object in canvas is pos: 50, 200, 0; scale 480, 480, 0, but when I move in script by:
    “transform.position.x += 20 * Time.delta”
    It moves way faster than I thought. And it seems like its still using the axis value outside the canvas. Which makes me more confuse and don’t know how to calculate specific value.
2

The Canvas is for UI and isn’t a 2D feature. It’s also not a construct to control SpriteRenderers. The UI has its own UI controls to display stuff.

3

it will all depend on your pixels per unit

if you make your sprites 1 pixel per unit

then x +=1 moved 1 pixel

but 1 pixel relative to what? only relative to the pixels of your sprite

also if you multiply by time.deltatime it will give you a different value everytime, you shouldnt expect to use this for exact calculations