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Subtractive Terrain layer map


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How would I subtract using a seperate Landscape Terrain layer map.

I would like to strengthen some creeks for example, so make them deeper.

Atm my workflow would be, that I create a seperate Terrain layer map with only the deeper creeks.

But the Blending mode offers only Add or Alpha Blend. 

In my case worklflow, I dont hava an absolute heightmap which I can edit, so I would create a subtractive height image to use that, beeing subtracted from the existing Terrain.

Or do I need to convert the image into a Int or float format using values in minus(-) and plus(+) range and then using the add mode?

 

Hmm. One way I found is to invert the classic heightmap (as mostly whites are plus). And then remap the height in UNIGINE with a  MIN of -xxx and the MAX with 0.

Is this a vadlid workflow?

thx. Werner

 

Edited by werner.poetzelberger
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Hello!

17 hours ago, werner.poetzelberger said:

Hmm. One way I found is to invert the classic heightmap (as mostly whites are plus). And then remap the height in UNIGINE with a  MIN of -xxx and the MAX with 0.

Is this a vadlid workflow?

Werner, actually this is absolutely correct way to solve the case. Just remap your original ".lmap" asset by playing with "min" and "max" height values and everything should went out as you need.

Thanks!

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