Creating a single mountain with certain height

[PredatorPF]

Hi all,

I'm trying to recreate the Kilimanjaro and thus I need a single mountain with a height of about 5890 meters. How can I achieve this?

I tried to use a heightmap, but the result was very bad and the max height was 254m (and the size of the heightmap-terrain was the same as the resolution of the heightmap bmp file, could not find a way to resize it. I tried resizing it using Photoshop, but the height remained 254m)

Can someone tell me how I can create a single mountain? (and use a seed to change the looks for example)

thanks

[alessandro]

When I have to create a mountain or set with specific characteristics, I use World Machine 2 which exports to .ter.

[PredatorPF]

I'm going to check it out, thanks

[Dune]

In TG you can take an alpine shader, mask it by a simple shape (soft edges of course), and hit seed and change size until you have what you need. The rest of the terrain can be filled by other power fractals or another alpine shader, but inversely masked by the same simple shape.

Something like this.

[jo]

Hi,

There are lots of ways to do this, and others have mentioned some of them. One thing you could do is find a Digital Elevation Map (DEM) of Kilimanjaro. There is bound to be one available. Instead of trying to recreate it you can use the real thing! TG3 has good tools for loading DEMs. You can use the Geog heightfield load node:

http://www.planetside.co.uk/wiki/index.php?title=Geog_Heightfield_Load

I tried to use a heightmap, but the result was very bad and the max height was 254m (and the size of the heightmap-terrain was the same as the resolution of the heightmap bmp file, could not find a way to resize it. I tried resizing it using Photoshop, but the height remained 254m)

I presume you used a heightmap you'd painted in Photoshop? The max height when imported was 254 because there are only 256 shades of grey in the image you're using for a heightmap, and I guess 2 shades weren't used. You can easily change the height by using the Height multiplier parameter in the Displacement tab of Heightfield shader node. For your specific example you could use a height multiplier value of 23.18, which is 5890 divided by 254. Anyway, check out the docs for the Heightfield shader:

http://www.planetside.co.uk/wiki/index.php?title=Heightfield_Shader

You can change the resolution of a heightfield by using a Heightfield resize operator:

http://www.planetside.co.uk/wiki/index.php?title=Heightfield_Resize

To create a Heightfield resize node select your Heightfield shader in the Terrain node list. Click the "Add Operator" button underneath and select the "Heightfield resize" item.

Your terrain may end up looking stepped or terraced. This is because it only has 256 possible heights. TG can disguise this but it depends on the heightmap. If you have Photoshop with 16 bit editing tools you can create a 16 bit greyscale image to use as a heightmap and it will look a lot better when imported.

Regards,

Jo

[PredatorPF]

Thanks for the replies, going to test this for myself.

For now I found a mountain suitable for my needs by tweaking the standard fractal terrain a bit and just searching the planet for a mountain with the correct surroundings.