Alright so here’s some of the stuff I learned in this lecture.
note: this is how I undersood it, I may have misunderstood something
Cartesian Coordinate Systems
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When working with 3D space you are working with three axes. (x, y and z)
Software can use either a lefthanded or a righthanded system.
Using one over the other effectively switches the x and y axes.
There’s some handy fingergun like gestures you can make with your hand to remember which is which.
image: wikipedia
Now I can’t picture exactly how a righthanded object would react to a lefthanded system but I can imagine it has some nasty results if done incorrectly.
Time.deltaTime
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When calculating new stuff like movement every frame you don’t want it to feel like you are completely dependent on how good your pc is.
A neat trick to counteract this is to multiply the amount of movement by Time.deltaTime.
This is the time it took to render the last frame, so it’s a pretty fair estimation of how long the next frame will take to render.
I can imagine on a small scale this is not always perfect but it should atleast be a lot better then not using this trick at all.
Keep it up space cowboys!