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[Djohaal]

Actually I'd like to do a more technical question. What function the program uses to compose the noise maps into the other maps (gradient, etc?). A bit unrelated but I'm trying to acheive some similar results on computer graphics fractrals but it is being more dificult than I expected.

[cephalo]

Actually I'd like to do a more technical question. What function the program uses to compose the noise maps into the other maps (gradient, etc?). A bit unrelated but I'm trying to acheive some similar results on computer graphics fractrals but it is being more dificult than I expected.

Generally speaking, it's all additive. This map + that map. The noise itself is made with Perlin noise, which uses bicubic interpolation on a noise (or some other noise-like) field.

[Djohaal]

Actually I'd like to do a more technical question. What function the program uses to compose the noise maps into the other maps (gradient, etc?). A bit unrelated but I'm trying to acheive some similar results on computer graphics fractrals but it is being more dificult than I expected.

Generally speaking, it's all additive. This map + that map. The noise itself is made with Perlin noise, which uses bicubic interpolation on a noise (or some other noise-like) field.

Hmm, but it normalizes values before adding so that the sum fits the 0-1 (or -1-1) interval I guess? I'm trying to do some planet texture generation fractrals to be more direction-oriented so I could have different biomes such as deserts, icecaps and etc to follow a mapped orientation. But it needs some noise and perfectworld implements this quite perfectly. thanks

[cephalo]

Actually I'd like to do a more technical question. What function the program uses to compose the noise maps into the other maps (gradient, etc?). A bit unrelated but I'm trying to acheive some similar results on computer graphics fractrals but it is being more dificult than I expected.

Generally speaking, it's all additive. This map + that map. The noise itself is made with Perlin noise, which uses bicubic interpolation on a noise (or some other noise-like) field.

Hmm, but it normalizes values before adding so that the sum fits the 0-1 (or -1-1) interval I guess? I'm trying to do some planet texture generation fractrals to be more direction-oriented so I could have different biomes such as deserts, icecaps and etc to follow a mapped orientation. But it needs some noise and perfectworld implements this quite perfectly. thanks

Eventually I normalize to 0 - 1, but only if necessary. If you're just adding stuff together you can usually normalize when it's all added up. In that sense it's more like an arithmetic average. For the noise field input in the Perlin I use (-1) - 1 so I can invert the negatives for a turbulence cusp. You could do the same thing with > or < 0.5 I guess.

[Morwaul]

Hello

I am having some PW trouble and was wondering if anyone could  help.  I am not sure what I have done to mess up my settings but anytime I create a world every place that is not a mountain has an aquifer.   Also, Elves keep taking over the world.  I thought it had something to do with rain or drainage but I keep messing with those with no change.

Other than that I have a couple requests.
1 Please put a link to the wiki in the 1st post.  I found it once but haven't been able to since.
2 Please add some legends and descriptions to the program.  What the colors mean and maybe a quick word on what each slider does.  For instance:

Percent below Sea Level
|----|----|----|----|----|----|----|
<---More Water      More Land---->

Some are quite obvious to me but may not be to other folks.  I have no clue what others do.

Anyway, thanks for any help.  Cephalo, you have created a truly awesome thing here.  Thank You

[Deon]

I totally redid my North America worldgen. I think it's looking pretty good now.

Link to the Worldgen file download!

Spoiler (click to show/hide)

Large worldgen with the new heightmap!

Spoiler (click to show/hide)

A sample of the Medium worldgen,

The uploaded file has Large, Medium, Small, and Pocket sizes for the worldgen, so you should be able to find a version that works for you. Only Large and Medium give really good results, Fun things happen on Small and Pocket.

Wow, mind if I use it for Wasteland mod? It looks tasty!

[Moogie]

I'm currently working on recreating Africa using this tool, but I'm having trouble with the rainfall map. The problem is, the program is extremely prone to crashing in painting mode. As a result, I've had to resort to genning random noise maps over and over until I get something vaguely like what I'm going for.

I tried to generated a rain shadow map, but I guess my source BMP isn't properly set up for this and I end up with a pretty much flat map.

Does anyone have any tips that would help this process?


Edit: With some perseverance, I managed to paint it for the most part, but it's pretty rough. Here's the biome map result so far:

Spoiler (click to show/hide)

(Ref: http://www.geographicguide.com/pictures/africa-image.jpg)

I haven't painted the rivers and lakes in yet, but once I do, would anyone be interested in using it?

[PTTG??]

That's quite impressive. I might suggest shrinking the continent slightly so that the south pole doesn't freeze South Africa.

[nil]

I'm currently working on recreating Africa using this tool, but I'm having trouble with the rainfall map. The problem is, the program is extremely prone to crashing in painting mode. As a result, I've had to resort to genning random noise maps over and over until I get something vaguely like what I'm going for.

I tried to generated a rain shadow map, but I guess my source BMP isn't properly set up for this and I end up with a pretty much flat map.

Does anyone have any tips that would help this process?


Edit: With some perseverance, I managed to paint it for the most part, but it's pretty rough. Here's the biome map result so far:

Spoiler (click to show/hide)

(Ref: http://www.geographicguide.com/pictures/africa-image.jpg)

I haven't painted the rivers and lakes in yet, but once I do, would anyone be interested in using it?

To avoid the crashing, paint in short strokes.  I think the problem comes from too much of the map, especially the biome map, getting updated at once.  I ran into this problem a lot myself but once I limited myself to only painting a hundred tiles or less per click it stopped being a problem.

[Moonshine Fox]

This looks like it's made of win and awesome on so many levels! Will definately give this a spin once I get off work!

[cephalo]

To avoid the crashing, paint in short strokes.  I think the problem comes from too much of the map, especially the biome map, getting updated at once.  I ran into this problem a lot myself but once I limited myself to only painting a hundred tiles or less per click it stopped being a problem.

So you guys are actually getting crashes eh? Any perticular error messages popping up?

[Moogie]

To avoid the crashing, paint in short strokes.  I think the problem comes from too much of the map, especially the biome map, getting updated at once.  I ran into this problem a lot myself but once I limited myself to only painting a hundred tiles or less per click it stopped being a problem.

So you guys are actually getting crashes eh? Any perticular error messages popping up?

I'll grab a screenshot when it happens to me next. Ironically, I've been trying to make it crash again today and it's suddenly working perfectly.

[Shagomir]

I totally redid my North America worldgen. I think it's looking pretty good now.

Link to the Worldgen file download!

Spoiler (click to show/hide)

Large worldgen with the new heightmap!

Spoiler (click to show/hide)

A sample of the Medium worldgen,

The uploaded file has Large, Medium, Small, and Pocket sizes for the worldgen, so you should be able to find a version that works for you. Only Large and Medium give really good results, Fun things happen on Small and Pocket.

Wow, mind if I use it for Wasteland mod? It looks tasty!

Go ahead! Let me know if you need any help with adjusting it, as it might need more wasteland than it currently has

[Moogie]

Here's the crash I just got when painting on the drainage map. It happens quite reliably when I'm painting with the Large brush along the top border of the map. I can avoid it by staying away from the edges. After crashing this way about seven times in a row, I no longer suspect it has anything to do with how quickly or wildly you paint; it's just whether you touch the border when you do.

http://img148.imageshack.us/img148/9711/pwpainterror.jpg


Also, I'm done with Africa for now. It has a couple of problems but I'm mainly happy with it.

Worldgen link: http://www.box.net/shared/rj7kgcyhp2

There's a thin strip of sub-arctic conditions which I can't get rid of, even with a high min temperature setting. Secondly, rivers love forming across the Sahara for some reason, no matter how arid and dry I make it there. Hopefully someone who knows what they're doing better will be able to finish this up.

Spoiler (click to show/hide)

Features~

* Large world (257x257)
* Entire African landmass, island of Madagascar and Middle East region
* The Sahara desert, Sahel and Sudan regions, the Congo rainforest, and the Rift Valley
* The Great African Lakes and the Nile river
* Mostly hot throughout - colder at the extreme south
* Savagery distributed vaguely from top to bottom, with most savage regions occuring in Southern Africa.

Also, in the interests of getting some good embark spots, I tried using the volcanism tweak to get flux and volcanos to appear right next to eachother, but it doesn't appear to work. The flux is always too far away in another embark screen.

[cephalo]

Dang. I know that error. I fixed it somewhere else assuming that the fix would propogate through all the maps. Apparently there was an exception in this case (Hey, that's a pun! De-dum-dum.)