Basic terrain with a lake?

Started by Jeffige, August 25, 2010, 04:19:21 PM

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Jeffige

I justed started using Terragen and right now I'm trying to make a basic terrain with a small lake.  I have mountains,  but when I use the add lake it shows up all around my terrain.  How do I restrict the lake to one spot?

Thanks for the help.

domdib

First, remove the lake you already have. Then, decide where you want the centre of your lake to be in the preview window. Right-click on the centre and "Copy Coordinates". Recreate your lake and in the Lake go to "Centre" - on the right-hand side you should see a little folder icon - click on it and "Paste coordinates". Then you may want to increase the Water level (since it is using the coordinates of the point you've chosen as the surface of your lake). Also, the default radius may be too big - try playing with that.

Dune

You could also mask out the 'overflow' by using the painted shader to paint in the lake area, attach this to the opacity input of a default shader. Set the color (first tab) of the default to black, attach the default to a surface shader, uncheck its color, attach the water shader into its child input and attach this surface layer into your lake object. This will save rendertime as well.

---Dune

Marlin

I've been trying to use a flow map generated in "World Machine" to make rivers with water in them. No success  yet. Is it even possible?   ???


Tangled-Universe

Quote from: Marlin on August 26, 2010, 03:05:13 PM
I've been trying to use a flow map generated in "World Machine" to make rivers with water in them. No success  yet. Is it even possible?   ???

Which version of World Machine are you using?
With the latest version you can use the layout-generator to draw/define the basic shape of your river and then use that as a mask for your terrain-generators.

Marlin

QuoteWhich version of World Machine are you using?

World Machine 2 V2.2 the free version. I generate the flow map with the 'erosion' node at the same time as the landscape (TER).

cyphyr

Quote from: Marlin on August 26, 2010, 03:05:13 PM
I've been trying to use a flow map generated in "World Machine" to make rivers with water in them. No success  yet. Is it even possible?   ???
I'm pretty sure its possible although its tricky and subtle. One option is to create two terrains (maybe two planets in the same place) both have the same world machine terrain map applied but the second one is offset by a small amount in the Y axis (+1 to 10m, maybe even less). The second terrain/planet then has the water shader applied with a mask from the flow map as described by Dune above. Make sure all your image mapped textures have EXACTLY the same coordinates and sizes.
One thing to note however is that in most cases where you can see large expanses of the flow of a river you can see very little of the river itself. If the river is cutting deep channels into the rock then these obscure the river leaving only the rivers erosive effects visible.
Good luck
Richard
www.richardfraservfx.com
https://www.facebook.com/RichardFraserVFX/
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