When and why using gameObject. C#

Unity Engine
1

Hi

I have been wondering what the difference is between using:

gameObject.transform.renderer.material.color = Color.cyan;

and

transform.renderer.material.color = Color.cyan;

They produce the same result, so what is the difference and when can I leave game.Object out and in which cases is it needed ?

I have tried to search for the answer in the documentation, but haven’t been successful.

(more stupid questions are guaranteed to surface from the swamp of ignorance)

2

If they both reference the same thing, then i see no issue using either. Remember changing .material will create a new instance (new draw call), if you can you should really be using sharedMaterial. But as to the question, i see no problems using either,

3

saying
gameObject
references the GO that the script is attatched to. Then saying
gameObject.transform
referces the transform of that gameObject. You can skip the first just using
transform
which references the transform associated with this script (component). Similarly, you can skip that and just call
renderer
which references the renderer associated with this script (component).

renderer.material.color = Color.cyan;

4

Hi

Thank you for explaining

I think I just learned something here !

However, I still misses an explanation about when or under which circumstances gameObject. is absolutely needed ?

If it’s never required then why use it at all ?

5

for example, Destroy takes a GameObject, if you only know a reference to a transform, you must
Destroy(someTransform.gameObject)

So: Different functions need different parameters.