The Slope node creates slopes from highest areas of its input.
It is similar to Dilate, but will expand from any part of the image, not only white areas.
The Slope node accepts a single greyscale input, interpreted as a heightmap.
The Slope node outputs the transformed heightmap as greyscale.
The Slope node has 3 parameters:
the size of the image.
the length of the slope effect.
the slope of the effect (1 is 45°, higher values are steeper).