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Badger
03-30-2009, 05:04 PM
Hi all,

I've got a problem with getting some terrain-map i created in Bryce, into a 3D game. As you can see in the picture below, you can see in the center part my height in the terrain map is terraced, i mean, it has a certain great value, and then it suddenly changes to a next value. I'd like to smooth that out. I've been playing around in Gimp & Photoshop, but i can get it smoothed. Given the amount of talent that visits here, i thought i might well ask for help here.

http://www.napoleonicworld.org/Art/chaparall/height_map_0.jpg

thanks
badger

guyanonymous
03-30-2009, 05:11 PM
Try switching to 16bit mode and doing a blur or something. Then switch back to 8bit. Just an idea.

Ascension
03-30-2009, 05:44 PM
Personally, I never had any luck blurring something like this...it just extends the terrace outward. I never tried 16 bit mode though.

RobA
03-30-2009, 10:25 PM
Working with a jpeg leaves something to be desired....

but I pulled it into wilbur, selected the lowlands with the magic wand, then ran the deterrace filter, added 1% noise then deterraced again.

Here is the 16 bit png.

(also zipped, as I'm not sure if the forum supports 16 bit)

-Rob A>

dragonwolf
03-31-2009, 12:12 AM
Badger,

Did you mess with Image->Adjustments->Levels in PS?

Badger
03-31-2009, 10:09 AM
Thanks a lot for the advice.

The heightmap was actually created in Bryce & exported to a jpg file. As RobA suggested, i'll try an export to bmp, might yield better result.

Will try it later tonight.

B

RobA
03-31-2009, 11:20 AM
@badger - You won't get any smoother using any 8 bit greyscale. The terracing is just due to being limited to 256 levels of grey.

-Rob A>

Badger
03-31-2009, 11:51 AM
i see, yet the current image doesn't use the full range of grays.

I might get this to work by adjusting the levels, so the entire range from pure black to pure white gets uses. Any pointers on smoothing the histogram when i do that?

thanks
B

RobA
03-31-2009, 12:52 PM
i see, yet the current image doesn't use the full range of grays.

I might get this to work by adjusting the levels, so the entire range from pure black to pure white gets uses. Any pointers on smoothing the histogram when i do that?

thanks
B

OK. Here is the 8 bit deterraced png from wilbur. This should be stretched the whole range.

11912

-Rob A>