An update on a new shader – Wood.
Initial approach was to start from sculpting out the details of wood on the geometry surface. And later extract cavity map as guide for texturing. However it didnt work that way. It looks almost like some kind of mud,rock surface. The displacement of the surface is probably too over.
So instead of jumping straight to sculpting, start off by doing a quick paint over and see how the final result would most likely be.
And then start off with texturing using photo reference to get the feel of it. Once thats done, i hopped over to lookdev just the sphere geometry itself and see whether the direction is right. It turns out pretty well. Starting to look like wood and also the characteristic is popping out.
One of the thing to take note was getting some bounce light on the surface itself. Because the reference image has such info, as well as some semi polished wood would catch some bounce light. Below is a couple of test on the different values keyed in primary bounce. The last one with a value of 100 is way too over, almost as if the wood is burning.
Heres the final result of the Wood Shader. Pretty much satisfy but would be great if ive some time to enhance its character a little more interesting. 🙂