How to add seed to Perlin noise?

[Rishavs]

Hmmm...

I am still not very happy with the seeding. I generally end up with 5-6 similar shapes with minor differing details.
Still, this is something I can optimize later. I am in a good place right now.

This is my hexagon map with heightmap.

hexmap.png (49.21 KiB) Viewed 2961 times

[pgimeno]

Maybe taking different sections of the "Perlin map"?

If your map is, say, 20x20, you can use the intervals [20*seedX, 20*seedX+20) and [20*seedY, 20*seedY+20) for some constants seedX, seedY (or maybe 30 instead of 20, to allow for some separation between maps).

[raidho36]

Yep, that is what you're supposed to do to get different snapshot of noise here. You need to sample different coordinates, one thing you could do is just offset the whole thing.

[Rishavs]

very interesting idea. Will try it tomorrow and report back.
Thanks!!

[Rishavs]

taking your advise i changes my noise to :

Code: Select all

            local elv_merged_noise =    
                   1.00 * love.math.noise (  1 * (dx + seed),     1 * (dy + seed))
                + 0.50 * love.math.noise (  2 * (dx + seed),     2 * (dy + seed))
                + 0.25 * love.math.noise (  4 * (dx + seed),     4 * (dy + seed))
                + 0.13 * love.math.noise (  8 * (dx + seed),     8 * (dy + seed))
                + 0.06 * love.math.noise ( 16 * (dx + seed),   16 * (dy + seed))
                + 0.03 * love.math.noise ( 32 * (dx + seed),   32 * (dy + seed))
                + 0.02 * love.math.noise ( 64 * (dx + seed),   64 * (dy + seed))
                + 0.01 * love.math.noise (128 * (dx + seed), 128 * (dy + seed))

and now i am getting completely diverse shapes. Thanks everyone.