Erosion Ops Presets

Started by CCC, February 25, 2010, 06:03:40 PM

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CCC

Has been uploaded at the NWDA Community Store.

Fourteen different variations of erosion adding additional realism to any heightfield or fractal flavour.


Note: Computing power is dependent on the size/processing time for each heightfield erode.


http://store.nwdanet.com/terragen2store/6-terragen-2-presets/10-functions/61-erosion-ops-presets.html


FrankB

that's truly a great addition to the NWDA preset collection - well done :)

Regards,
Frank

CCC

#2
Thank you.

Hannes

That looks really beautiful. I just purchased the presets.
Maybe I'm blind, but where do I connect them to my terrain nodes? :-[

CCC

#4
You want to plug the heightfield erode as seen here.    

CCC

However if you want to generate your heightfield from any other shader such as a power fractal for example it will look like this along with the heightfield erode.

Hannes

Thanks for the explanation, but how do I add the presets to an existing heightfield load?

CCC

Since they are clip files just go to the file tab, insert clip file. Once the clip file shows up in your nodes window just connect the imported node according to what is shown in the example images i had posted.

Hannes

Thanks again. Yes, I know how to insert clip files, but it wasn't so easy to plug it into the right place.
I finally got it working now (btw, the idea of hitting the "erode" button helped a lot  :-[)

Is it right that everything outside the heightfield area of your clip file remains flat? Let's say you have a heightfield load with an imported terrain. You insert your clip file and use the heightfield load shader in the "use shader" tab of the heightfield generate tab of your file. Inside the erosion heightfield the terrain remains. Everything else is flat. Is there a way to enlarge the area your erosion takes place? I thought of a transform shader, but I don't know where to apply it.

A lot of questions! Sorry, but this node stuff is really weird (at least for me!).

CCC

Yes, i should have attached instructions on how to use these features. This is my first time directly selling anything on-line so i am still very new to all of this.

When you generate a heightfield using the heighfield generate it will remain flat outside the given area, however you can increase the size and cover more ground, however the larger the heightfield erode the longer it will take to process. The size of the heightfield area always remains the same size of the heightfield erode. To increase the size see here:


Matt

Hannes,

The Heightfield Erode V3 node operates on any kind of heightfield data, whether it is loaded or generated. You don't need to use Heightfield Generate if you just want to erode a loaded heightfield. You can plug your heightfield load node directly into the erosion operator. However, this does mean that your eroded heightfield will have the same dimensions and resolution as your original heightfield, and if you wanted to erode a larger area of landscape you'd need to generate a larger heightfield from your shaders.

Matt
Just because milk is white doesn't mean that clouds are made of milk.

CCC

Matt seems to have the better explanation here.    ;D

Hannes

Thanks guys, I'll play with it tomorrow. Always good to learn something new!

Dune

QuoteYou can plug your heightfield load node directly into the erosion operator.

@Matt: This won't work for imported TIFF's though, am I right? Just TER's. Unfortunately... or did I miss something?

---Dune

Hannes

Thanks again, AL33!
Thank you Matt!!!!! Perfect! Works like a charm!