Erosion Ops Presets

[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]

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]

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

[CCC]

Matt seems to have the better explanation here.   

[Hannes]

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

[Dune]

You 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!