Trying to work through this:
"Lets start from scratch.
Add a Get Position Function, an X to Scalar Function, and a Sin scalar function, and join them together
in that order.
Add a Displacement shader and join the Sin function to the function input of the Displacement shader and the output
of ther Displacement to the Compute Terrain as usual.
Change the Camera to position 0,25,0 with a rotation of -90,0,0.
Change the Sun to a angle of 45.
You should have a ploughed field look. Let's add some noise to the X co-ordinate.
Add a Perlin 3D scalar and an Add Scalar function.
Connect the Get Position to the Perlin 3D scalar, The Perlin 3D Scalar and the X to Scalar to the Add Scalar.
Connect the Add Scalar node to the Sin Scalar node.
There should now be indentations now (Fig 4 'a')
Add a Constant Scalar, set to 20, and connect it to the Scale input of the Perlin 3D scalar.
The smoothnes is back, but you may notice some subtle distortions, the poughing is not as straight as
it used to be. Set the Camera to 0,100,0 to see it a little better. (Fig 4 'b')
Perlin noise tends to give values between -1.0 and +1.0 so lets increase those and see what happens.
Add a Mulitply Scalar. Connect the Perlin 3D scalar and the Constant Scalar to the Multiply scalar.
Use the Multiply Scalar output to replace the Perlin 3D Scalar input to the Add Scalar.
That distortion is not so subtle now is it (Fig 4 'c') :-) "
Terragen crashes when I get the following items assembled (see attached image)
