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General => Terragen Discussion => Topic started by: cyphyr on May 05, 2010, 08:46:00 AM

Title: Miss-match between "merge shader" output and render
Post by: cyphyr on May 05, 2010, 08:46:00 AM
Hi there

Me again with another question that probably I should know the answer to already.  ::)

I'm merging two terrains together, (simple dunes) a small scale, small displacement, sheared perlin PF, MERGED (Highest raise) with (Simple Mountains) a  large scale, stratified, higher displacement Perlin Mix .

The screen capture shows the dunes in green and the mountains in a sandy colour.

In the Merge shader is there a nice delineation between the green colour and the sand colour, however when this is applied to a surface layer the green starts creeping up the sides of the mountain. How can I maintain the distinction between terrain types and terrain type colour?

Oddly if I disable the compute terrain it works as expected but I have a feeling this will prove problematic later in development.

Cheers

Richard
Title: Re: Miss-match between "merge shader" output and render
Post by: Tangled-Universe on May 05, 2010, 08:51:46 AM
Do you use any special kind of displacement, other than "along normal"?
Title: Re: Miss-match between "merge shader" output and render
Post by: cyphyr on May 05, 2010, 09:02:06 AM
Nope :)
Attached the tgd for reference, I've altered the colours slightly since the screen cap above. Try disabling the compute terrain, changes the colour distribution but makes not a jot of difference to the terrain.
This is probably a simple NEC* error  ;)
Cheers
Richard
* Not Enough Coffee
Title: Re: Miss-match between "merge shader" output and render
Post by: Dune on May 06, 2010, 02:39:55 AM
Is it perhaps because of the patch size in compute terrain? What if you feed compute terrain into the color input?

---Dune