Okay - what have we done?
A mediocre scene with a nice shader. But most important we got some approach to the Power Fractals.
The Power of these is in my opinion that they handle two colours.
So, a new day has dawn, yesterday's work has gone. Let us start from scratch, please!?!
Starting a new scene, changing the size of the heightfield, zooming in.
What we can avoid now, is low contrast.
Go to the
Base Colour shader of your new scene and change the colour settings.
Colour contrast of 1 is good,
High and Low Colour should be black and white.
Keep the noise and warp-settings - whoever has set those defaults, knew why.
Just the scale could be changed - to keep the noise patterns within the boundaries.
I went for ~ 2|10|0.3 (The last one just to keep the octaves low -> rendertime).
The preview looks nice, a render is too rough for my taste. I reduced the
Colour Roughness to 1-2.
Adv-1.jpg shows a version with slightly changed colours.
I rename this shader
Layer 0 and add a new powerfractal, named
Layer 1.
Be sure to deactivate the displacement and to activate the
Low colour.
The new Powerfractal covers
Layer 0 completely, we are going to chang this later.
More important is to give this shader its own natural look - yesterday, we added details to one Base Fractal. Today we create 3 different Fractals that get blended.
Again high contrast settings. But more important is to change the noise.
Layer 0 has Perlin for
Layer 1 I go for a Mix.
Smaller scale settings - about half the size of
Layer 0 are a good start. I think you get it right.
Now we want to blend
Layer 1. At the bottom of the powerfractal (PF) you can add a blend-shader. Create a new PF and assign it as a blend shader. Activate the checkbox 'Blend by shader'. I called this shader '
Blend Layer 1'.
Unless you can visualize perfectly, you might want to change the colours of
Layer 1 to see where it is blended or not.
I set the values of
Blend Layer 1 to get an approximate 50% coverage.
But
Layer 1 did not look that good anymore. Tweaking the scale a bit gave good results (Adv-2.jpg)
The third powerfractal - is it necessary? Well, we could need some very fine details.
I give you my scale settings 0.05|1.7|0.005 - you might want to zoom in to get the details.
For the Blendshader you might need to use a negative Colour offset.
Anything else, I trust you
Finally create a new group, insert your shaders into the internal network of it and save the group as clip-file.
For those who would like to compare, I add my finished version as an attachment.
to be continued ...