Topic: Kulthea DEM (Digital Elevation Map) ?

[terefang]

Can the noise texture be layered with another larger texture to break up the even distribution?

if you want to play with it in Wilbur http://www.fracterra.com/wilbur.html or another terrein tool, i can send you the heightmap.

i would recommend this tutorial http://www.worldofgotha.com/PF_TUTORIAL/israh3.html

T.

[Terry K. Amthor]

This is an interesting project. We will certainly need to replace the crude area maps for the Emer I revision (and probably Emer II as well. They aren't as ugly, but it would be nice to be more consistent).

[craggles]

These tutorial images for WILBUR look perfect for continent maps with great mountain regions that don't necessarily need to be as accurate as the closeup version of Vog Mur.

Do you have any of the original Kulthea maps? it would be good to try out on one of those baring in mind that the mountain ranges there are graphics representations of vast mountain ranges and are not just 1 peak wide. 
(That's not to say that you should be inaccurate, just that you don't need to trace the contour lines on the Best wishes counterparts of them)

[Terry K. Amthor]

And obviously Craig is right; if we want to do more 'accurate' maps, a mountain range is going to be more than 1 peak wide. Just watch the beginning of 'The Two Towers' and see a range in New Zealand (I mean, the Misty Mountains with Moria beneath..)

[craggles]

(That's not to say that you should be inaccurate, just that you don't need to trace the contour lines on the Best wishes counterparts of them)

What did that mean!??!

Ahhh, I have an app that can auto complete words or phrases to save typing and I've set "bw" to "Best Wishes" when I meant "Black & White" so it should have been "...you don't need to trace the contour lines on the black and white counterparts of [the colour maps]".

Sorry for any confusion. I shall adjust my settings ...and perhaps proof read as well.

[terefang]

you want probably that:
http://www.world-machine.com/

[terefang]

i have played around with the western hemisphere

"ocean dem" is from oversampling, land is still flat.

[craggles]

Waiting patiently for the attachment to be approved...

[craggles]

Do you have any way to upload the file so we can avoid the time it takes to be approved?

The dos are all knowing but not always all present. 

[terefang]

hope that works

[craggles]

nope.

Do you have Dropbox by any chance? If you add the image to the Dropbox folder and then right click the file and one of the options should be something like 'Copy URL to Clipboard' and then you can use that link in your post. (I didn't mean to sound patronising by the way, I just wanted to try different options).

[terefang]

sorry no dropbox

https://kulthea.reibenschuh.info/shadow.world.map.wb.M.small.png

[craggles]

Excellent - that one worked. At what stage are we at this point?

[terefang]

Excellent - that one worked. At what stage are we at this point?

creating the image involved the following steps:

• extracting the sw-map (pdf-image)
• painting background and seams in blue (gimp)
• extracting a cutout map (scripted java/groovy)
• oversampling tile-size=TxT, DEM-Scale=T*10 and T=(1024,512,256,128,64,32,16,8,4,2,1)  (scripted java/groovy)
• combining oversamples @ size (H*2)x(W*2)   (scripted java/groovy)
• exporting as VTP-Binary-Terrain (float32)  (scripted java/groovy)
• imported and colorramped (Wilbur)
• exported as terrain texture PNG (Wilbur)

i am currently researching:

• how to properly colorramp (with QGIS)
• how to properly georeference (with QGIS)
• how to oversample artistic height-paintings
• how to combine the oversamples with fractal detail algorithms

do we agree that DEM (x/y) resolution should be <1km ? (at least what i suspect from previous postings)

for horizontal resolution i am targetting around 30 meters

for the fractal detail functions i identified the following major terrain types:

• Swamp
• Mountains
• Jungle
• Hills
• Grassland/Plains
• Forest
• Desert
• Broken Land

T