Question about xfrog

I downloaded some free samples of xfrog objects and they seem to crash my editor. and when it doesnts the leaves are blocks instead of leaves. Is xfrog not compatible with unreal? Should I waste my time with xfrog. It seems very good but doesnt seem to function at all with unreal

xfrog is a procedural shader that last time I tried it requires a plugin for a given application. Since Unreal 4 does not have a pluin for it then it won’t work

Ok thanks alot. that helps me not to buy it