When can I use Time.deltaTime?

Unity Engine
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1

I just started to use unity and I saw a lot of unity tutorials use Time.deltaTIme. But I don’t really understand it. How can I use Time.deltaTime?

2

Time.deltaTime is the duration of the last frame. So you can (and should) use it to make frame independent movement. Just imagine you move the player 0.1 units each frame. At 30 fps he would move 3 units in a second, At 150 fps he would move 15 Units per second. So instead you give it some speed in units per second and multiply the movement each frame with that and deltaTime. Then the actual framerate does not matter any more and the player will move with the same speed for all users.

3

Thanks for your help