I'm working on a blocky cliff wall that uses tile samplers to place my blocky boulders in a pattern. What I'm trying to achieve now is to have certain boulders cracked. I've been investigating two approaches so far:
1) Use a directional warp. I saw this trick in Josh Lynch' herringbone pattern tutorial. You plug in your cracks as the input and then a mask of your herringbone pattern into the intensity and this breaks up the cracks evenly in a nice way. This technique however requires a mask that is very flat with no gradients. I have been unable to produce that in my substance.
2) Put the crack in my boulder generator itself. The boulder generator is plugged in as a pattern input in the tile sampler. The problem with this is that all the boulders plugged into say, pattern input 1, will exhibit cracks and the exact same crack.
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