Parametric Environmental Analysis

Evolute Tools Lite

EvoluteTools Lite is a free Rhino plugin allowing intuitive design of panelizations using multi-resolution mesh modeling and mesh optimization. Meshes can be optimized for closeness to a reference surface, fairness (smoothness) of its polylines and several other goals.

http://www.evolute.at/software/evolutetools-for-rhino/evolutetools-lite.html

Louver Orientation in Grasshopper

Alex Hogrefe has a nice tutorial on louver orientation in grasshopper using attractor points

http://www.alexhogrefe.com/louver-orientation-grasshopper/

ghostTown

ghostTown is a procedural script for 3DS MAX that allows you to quickly generate urban environments. Wow.

http://kiladghosttown.blogspot.com/

Project Gepetto

Project Gepetto is an Autodesk plugin for 3D Studio Max that enables crowd simulation, paths, idling, passing and avoidance. Pretty cool!

CADtoEarth

CADtoEarth is a Revit plugin that lets you import google earth surfaces into Revit .. and export your model back to google earth

http://apps.exchange.autodesk.com/RVT/Detail/Index?id=appstore.exchange.autodesk.com%3acadtoearth%3aen

RhinoVault - Funicular Form Finding

RhinoVault is a Funicular form finding tool for Rhino

http://block.arch.ethz.ch/tools/rhinovault

Hatch-22: Custom Hatch Patterns in Revit

A Revit plugin that lets you create custom repeating hatches

http://mertens3d.com/tools/revit/2012/hatch22-2012/hatch22-2012-use.php

co-de-it

A great source for grasshopper scripts .. all those obvious things without having to re-write it yourself

http://www.co-de-it.com/wordpress/code/grasshopper-code

Dynamic Blocks in AutoCAD

Yeah, it's boring, it's dry, but it can come in pretty handy.

http://cad-notes.com/2009/12/using-parametric-features-in-dynamic-block/