So I'm using the Terragen file put together by Big Ben (archive.bigben.id.au/terragen/terrains/swiss_alps/) which uses lots of blending stuff that I sort of understand (but not quite) and using World Machine I rendered out some snow maks and then tried to use the same methods used for the heightmaps. However, as you can see from the image below, it doesn't fully do the job I want it to.
Is it possible to completely mask out the different colours to match the height map dimensions? (So no green appears where there's red, etc)
Thanks