How do i make an plant system?

[daring glen]

d

im trying to make a system that generates plants over terrain

BUT i dont want it to pivot to an specific Y and just pivot over the terrain's chunk Y

like i dont want plants underground

like the plants in minecraft

like in an layer of terrain, NOT just an specific lane

[jaunty meadow]

If you've procedurally generating chunks then you should have a corresponding heightmap. Else you could always just use some raycasts mixed with some logic (don't place plants on top of stone, don't place them under water, etc. etc.). Then just make sure to add some noise filter or whatever on it. To avoid it from either overlapping too many plants, or avoid it from forming a perfect grid (unless you prefer that for some reason, then just go for that)

[daring glen]

Exactly

I think by noise you're saying Perlin Noise

[jaunty meadow]

I would’ve said perlin if I meant specifically perlin

Different noises will give the plant generation a different feeling

[daring glen]

but anyways, I don't think I would have to do G64 maps

1 out of g64

so an script would generate an height map