Need some help with a heightmap

Need some help with a heightmap

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Eaglebird
Posts: 263
Joined: 02 Aug 2005, 23:49

Need some help with a heightmap

Post by Eaglebird »

My heightmap is bumpy, too bumpy, for my likes. You can only build in certain areas. I know this is a good thing to some extent, but my extent is where it's hard to find a place to build a wind generator.

Would this fix be in the map itself or in MapConv's high/low values?
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FizWizz
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Joined: 17 Aug 2005, 11:42

Post by FizWizz »

making the max/min height values more moderate would help some, but then your map gets much flatter. If you have photoshop, you might want to play with a Gaussian blur, with maybe a 5 pixel range. However, blanket adjustments like those might not do the job as well as it can be done. For best results, you have to level terrain by hand, I'm afraid.
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Eaglebird
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Post by Eaglebird »

FizWizz wrote:making the max/min height values more moderate would help some, but then your map gets much flatter. If you have photoshop, you might want to play with a Gaussian blur, with maybe a 5 pixel range. However, blanket adjustments like those might not do the job as well as it can be done. For best results, you have to level terrain by hand, I'm afraid.
I did some blurring and editing the bmp itself. It got a little better, but not much. I'm guessing it is the values for MapConv. I'll find out in a bit. Any other suggestions are still welcome.
mufdvr222
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Joined: 01 May 2005, 09:24

Post by mufdvr222 »

Gaussian blurr is the filter you need to use, in conjunction with the magic wand, "in photoshop" you should be able to mask off the parts you don`t want to blurr with this tool and then apply the filter.
If you want, post a link to the heightmap and I can fix it up.
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Eaglebird
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Post by Eaglebird »

mufdvr222 wrote:Gaussian blurr is the filter you need to use, in conjunction with the magic wand, "in photoshop" you should be able to mask off the parts you don`t want to blurr with this tool and then apply the filter.
If you want, post a link to the heightmap and I can fix it up.
I got it. I changed values in mapconv from 500-100 to 200-100
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aGorm
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Joined: 12 Jan 2005, 10:25

Post by aGorm »

Bare in mid thougfh that means all your hills that are ment to be hills are now just as flat as everything else.

How did you make your heightmap to start with?? Did you just generate it with, for example, terregen, or did you draw it out by hand in photoshop (or similar)?? Heightmaps made in progs designed to make realistic terrain are ofen crap for the actully maps, as they make teh land to uneven. I find it best to import something you have hand made. (there are tricks for making it more uneven afterwards, such as adding noise ect...)

aGorm
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Eaglebird
Posts: 263
Joined: 02 Aug 2005, 23:49

Post by Eaglebird »

aGorm wrote:Bare in mid thougfh that means all your hills that are ment to be hills are now just as flat as everything else.

How did you make your heightmap to start with?? Did you just generate it with, for example, terregen, or did you draw it out by hand in photoshop (or similar)?? Heightmaps made in progs designed to make realistic terrain are ofen crap for the actully maps, as they make teh land to uneven. I find it best to import something you have hand made. (there are tricks for making it more uneven afterwards, such as adding noise ect...)

aGorm
I made a black and white image, imported it into L3DT, and went from there.
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aGorm
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Joined: 12 Jan 2005, 10:25

Post by aGorm »

Hum.... when you imported it did U run any fillters on it to make it more realistic?? Thats where the problems normaly start...

Or you just made your image to rough in the first place... but i find that hard to belive unless you hit ADD NOISE and then blured it slightly...

If you want to fix it up, look for the areas ment to be flat, colour pick that colour, get a soft brush and go over the areas. takes a bit of time bt its the best way.

aGorm
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Eaglebird
Posts: 263
Joined: 02 Aug 2005, 23:49

Post by Eaglebird »

aGorm wrote:Hum.... when you imported it did U run any fillters on it to make it more realistic?? Thats where the problems normaly start...

Or you just made your image to rough in the first place... but i find that hard to belive unless you hit ADD NOISE and then blured it slightly...

If you want to fix it up, look for the areas ment to be flat, colour pick that colour, get a soft brush and go over the areas. takes a bit of time bt its the best way.

aGorm
I guess it was too rough in the first place. The only thing I did after I got it was blur it a bit and darken it some.
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Forboding Angel
Evolution RTS Developer
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Joined: 17 Nov 2005, 02:43

Post by Forboding Angel »

eagle, if you read my tutorial there awre some methods in there to smooth over the heightmap. BTW a great middle ground value for map height is max 400 min 100 (assuming you have no watter, and if you do have water then try max 200 min -100
mufdvr222
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Joined: 01 May 2005, 09:24

Post by mufdvr222 »

Eaglebird, are you using a .raw heightmap or a bitmap,, using .raw can "sometimes" result in a very bumpy map.
You do want some bumpiness if the maps a natural terrain style,, there is nothing uglier than a map that has "perfectly flat" flat areas.
Also make shure you get mapconv to lowpass filter the heightmap
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Eaglebird
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Joined: 02 Aug 2005, 23:49

Post by Eaglebird »

mufdvr222 wrote:Eaglebird, are you using a .raw heightmap or a bitmap,, using .raw can "sometimes" result in a very bumpy map.
You do want some bumpiness if the maps a natural terrain style,, there is nothing uglier than a map that has "perfectly flat" flat areas.
Also make shure you get mapconv to lowpass filter the heightmap
I'll check the lowpass filter flag in mapconv to see if I did it. It's a bmp.
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