Any performance loss with prefabs?

[AustinJ]

Quick question about prefabs...

If i have a model of a box(one mesh) that needs to be duplicated about 600 times in unity, will I have better performance if I create a box prefab, then duplicate it? Or is it more or less the same as if I just import the model and duplicate it?

thanks

[oxl]

I would like to know this , too.

Maybe this is not the perfect sub-forum to ask this question.

-
oxl

[dreamora]

it will in both cases be pretty heavy if they are on screen as its 600 distinct objects in both cases.

The main difference is that with your own you can layout the UVs on the cube as you need them while you have to use the one provided if you use the unity one (unsure if unity's cube has per side UVs or not)

[Tzan]

600 objects will use 600 draw calls per light, assuming you used just 1 material per box.

If you are not moving these boxes around individually during play, you can use the Combine Children (CC) script to make 1 mesh out of them. Then its just 1 draw call.

number of different materials x lights = draw calls on a CombineChildren mesh

I think thats right.

If you need to move some you can get creative and group them, then remove CC do changes set CC back on.