02 Simple Modeling for Wind Force
Tutorial by:
Hwan Kim (kimx3101@umn.edu)
Source: www.grasshopper3d.com/group/kangaroo/page/example-files
*For this tutorial, we also need "Weaverbirds" plug-in.
Simplified Process
Step 01: Make a Mesh and select it as geometry.
Step 02: Convert the geometry to three types of acting points for wind force, spring force, and gravity.
Step 03: Connect the acting points to the three forces.
Step 04: Set the anchor points.
Step 05: Start Kangaroo Engine.
Step 06: Make a mesh by using new geometry of Kangaroo Engine.
Step 01
We need to make the mesh in Rhino and set the mesh as the geometry in Grasshopper.
Command - Mesh
Step 02
We should think about relationship between geometry and forces,
because the each forces require the specific acting points or lines of force.
First of all, the Kangaroo engine needs mesh vertices as the geometry for the engine.
Command - mComp
Wind force is applied to three points of each triangular units of the mesh.
Command - wbFacepolys, Explode, Flip, Bang
Spring force is applied to a wire frame of the mesh.
Command - wbEdges
Gravity is applied to all of vertices of the mesh.
Command - wbVertices, Unit Z, Uforce
We need to set the anchor points on the edge of the mesh.
Command - Point
Finally, We can start the Kangaroo engine and create the final green mesh.
Command - Kangaroo Engine, Boolean Toggle, Timer
And also we can adjust wind direction by using "MD slider".
Command - MD Slider