ICE compounds, sample models and docs for version 3.0 are here
Docs for version 3.0 are here
As I've mentioned above, main new feature is completely new method of guides-filler interpolation. Finally there are two master emitter nodes, called kH3 Emit from NurbS and kH3 Emit from PolyMesh. Both are able to switch from one-step random emission, to guides-filler mode. For the rest of how-does-it-works for now, take look at online docs and sample models. Docs are updated for this version, I've added a bunch of pictures too.
My small suggestion is to first take look at "in_between_curves.emdl", there is a new styling operator.
Some other new nodes:
kH3 Grouping by Polygons: creates the groups, following polygons of external geometry ( this is in image bellow)
kH3 Filter by Geometry Volume: similar to factory node, in "in_between_curves.emdl" this one is used to draw a hair parting line.
kH3 Deform Hair: general purpose node, deforms a whole hair by copy of emitter's geometry.
A bit of work went to consolidation, for example all multiple geometry inputs are based only on ICE multiple ports, there is no 'forbidden'
"Repeat" node anywhere (Ok that's not big deal to do with hair...).... and a lot more of min-max-clamp stuff, just to protect users from something unusual. This time I've tried to use as much 'ordinary' constructions. A 'big' kH Follow NURBS is just one, having all methods of interpolation. For those who want to change the stuff, there are basic versions called "kH Follow NURBS Core" and " Follow Curve Core" in 'nested' folder.
However, because of new guides-on-triangle-corners method, still there is a small chance for weirdness in rendering (at start of ICE tree, three or more guides are on top of each other), but I think I'll be able to fix that, following a some nice explanation.
Also, both 'big' and 'lite' kH Follow NURBS has one more user parameter: the end of interpolation along X of NURBS surface (it's called 'AB End') - because automatic method didn't worked well. In docs, there are a few pictures just about kH Follow NURBS.Tutorial on Autodesk Area
is OK for new stuff too.