In this section you can find very interesting information regarding the architecture and all its applications, in addition to cinema 4d tutorials designed and / or aimed at architects, completely free here is the link http://jaramillo-arquitectos.blogspot.mx/ is in Spanish but there is a button to t...

here is a tuto "for making grass with hair" could be helpful
I don't know

try it, is in Spanish but is simple and go through the point
http://jaramillo-arquitectos.blogspot.m ... n-c4d.html