See http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/wip-mods/2524489-wip-realistic-terrain-generation-0-0-5?comment=62

Hmmz didn't know they were empty... must be at a specific altitude but that's logic cause most ore doesn't generate higher then 90 orso.

Need to lookup the ore stats first cause I think copper and coal is the only 60+ ore (vanilla ore)

Yes, if we're going to implement this one, we need to do it for vanilla ores only, and we should stick to whatever the vanilla rules are for ore gen at certain heights as the default, and then maybe let users customize it to whatever they want. So maybe something like...

[default: 1]
oreIronMinHeight=1
[default: 63]
oreIronMaxHeight=63

What you reckon?

Yes something like that and yes keep it locked but I would say coal can be to 255 for all I care

More feedback: http://www.minecraftforum.net/forums/mapping-and-modding/minecraft-mods/wip-mods/2524489-wip-realistic-terrain-generation-0-0-8?comment=127

Another requested feature... "Ore X can only generate in these biomes: "

I think I already changed this for vanilla :p

Btw if you want to support all ore giving mods that's gonna be a Shit load hahaha

It should be easy enough to add a disable/enable flag as well, just in case.

there would need to be a way to disable this option as it could interfere with world gen of cofhcore if you are using cofhcore to handle your ore gen.

it will not interfere it will just make it that coal and iron are seen at higher altitudes

I've decided not to implement this feature as it falls outside the scope of what RTG is trying to do. If users want this functionality, they will need to find another mod to use alongside RTG (e.g. Custom Ore Generation).