Well, there are a couple of different issues here.
1)Choosing the right scale.
and
2)Sticking to it.
1metre = 1 Unit is a decent enough mantra for the latter. To be honest, I don't mind what my artist does so long as he sticks to the same scale*. Rescaling all assets by a fixed amount incurs no overhead.
*And plenty of professional game artists seem to have trouble with that. Doors at half the height of the characters etc.
1)Choosing the right scale.
and
2)Sticking to it.
1metre = 1 Unit is a decent enough mantra for the latter. To be honest, I don't mind what my artist does so long as he sticks to the same scale*. Rescaling all assets by a fixed amount incurs no overhead.
*And plenty of professional game artists seem to have trouble with that. Doors at half the height of the characters etc.