Cliff Generating

Started by Feenixnz, September 01, 2009, 06:30:19 PM

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Feenixnz

ok few more tweaks today added some clouds for fun havent really played with it. Still getting my head round all the nodes and how they should connect =)

Feedback welcome as always cheers all


Henry Blewer

I think the clouds are to thin. The cliffs are just fine. The breakup of the strata is very nice.
http://flickr.com/photos/njeneb/
Forget Tuesday; It's just Monday spelled with a T

Feenixnz

hey guys,

Id like to add a layer of rocks on the ledges of my cliff face via rock population. The issue that Im experiencing is that allthough it follows the general contour of the terrain, its not actually sitting on the terrain itself. So when I render I have rocks wich are suspended in mid air. Adding either a distribution or surface layer to try and constrain amplitude doesnt work as the rocks disappear all together.  ???

I have attached a screen shot of my 3D prev window. What Id like is to have the rocks sitting flat on that ledge where the plane is.

cheers ;D

Henry Blewer

They may need tighter altitude constraints. Also a compute terrain. Hmmm....
Are you using rock objects? Try the fake stones shader. I think the fake stones look better than the rock objects.
http://flickr.com/photos/njeneb/
Forget Tuesday; It's just Monday spelled with a T

FrankB

Most likely the renderer hasn't got accurate information about the texture coordinates. If you decrease the patch size in your compute terrain node, this would fix it.

Frank

Feenixnz

hey guys,

Njeneb - Using a surface layer as a density shader and contraining altitudes no matter how small caused the rocks to disappear altogether irrespective of how close I set the spacing of the objects.  With the Fakestone shader, I noticed that the axis might be rotated as (whilst following the "Making of Wilderness" tutorial) when I adjusted the pancake effect to 2, it seemed to stretched the rock upwards (like a pancake on its side ( mmmm pancakes) ).

Why would this be happening? would one of the "GET" functions solve this and if so which? and plugged into where? 

FrankB - tried this just now. Unfortunately no joy here.

I've uplaoded the scene file so would appreciate someone pickin it apart for me.

Thank you in advance  :D

Henry Blewer

I have seen this also. Put the fake stones in a redirect shader using the X and Z inputs. Also if you use a power fractal in the fake stones surface input (or part of a surface layer) add a compute normal and change the displacement to lateral only.
http://flickr.com/photos/njeneb/
Forget Tuesday; It's just Monday spelled with a T

Feenixnz


Nice. Will give this a go, thank you