More Kangaroo 2

Note: this exercise requires the Mesh Flip and Mesh Explode components from the MeshEdit plugin for Grasshopper. It's pre-installed in CMU's version of Rhino, but if you're using your own copy of Rhino, please install this plugin.

    Coloring a Mesh in Strips

  1. If you didn't save the results of the previous lecture, load the pre-made file organic-pipes.3dm into Rhino.
  2. In Grasshopper, create a Mesh parameter and set it to the organic pipes mesh.
  3. Create a Sets > List > Dispatch component and feed the Mesh parameter into it.
  4. Create a Toggle component and feed it into the Dispatch's P input.
  5. Connect the A output to Dispatch to a Move component.
  6. Right click on the Move component's Transform input and do Set One Vector. Set a vector to move the mesh copy out of the way of the Rhino object.
  7. Connect the B output of Dispatch to a Mesh Flip component, and run its output as an additional input into the G parameter of the Move.
  8. Create a Kangaroo 2 > Mesh > Stripper component and run the output of the Move into it.
  9. Run the output of Mesh Stripper into a Dispatch component.
  10. Create two Mesh Colors components and run the A and B outputs of Dispatch into them.
  11. Create a Color Swatch component for teach Mesh Color component and set one to blue and the other to white.
  12. Feed the outputs of the two Mesh Color components into the M+ input of Weaverbird > Extract > Weaverbird's Mesh Join and Weld.
  13. Flip the toggle and observe the results.
  14. Bake the result and look at it in Render mode.

    Checkerboard Coloring

  15. Create a similar program as above, but run the moved mesh through a Mesh > Analysis > Mesh Explode component and feed the faces into the Dispatch component.
  16. Create a Kangaroo 2 > Mesh > Checkerboard component, feed the moved mesh into it, and feed its output into the P input of Dispatch.
  17. Bake the result and look at it in Render mode.

    Warp and Weft Coloring

  18. Create a program similar to the first one.
  19. Run the moved mesh into a Kangaroo 2 > Mesh > Warp/Weft component.
  20. Feed the A output of Warp/Weft into a Curve component.
  21. Feed the Curve Component into a Pipe component and set the pipe radius to 0.05.
  22. Flatten the output of the Pipe component and feed it into a Mesh parameter.
  23. Run the moved mesh into one Mesh Colour component and the meshed pipes into the other Mesh Colour component.
  24. Optional: set the E parameter of the Pipe component to cap the pipes. This makes things much slower.
  25. Bake the result and examine it in Render view.
Dave Touretzky