What It Does
Opens the Grasshopper editor, giving you access to visual programming tools for parametric design.
How to Use
- Make sure the Start command has run (Rhino initialized)
- Click Grasshopper in the Core panel
- The Grasshopper editor window appears
- Create or open Grasshopper definitions
Learning Grasshopper
New to Grasshopper? That's okay!
Resources:
- Grasshopper Primer (free online guide)
- YouTube tutorials for beginners
- Grasshopper forum at discourse.mcneel.com
Troubleshooting
Grasshopper button is greyed out
What it means: Rhino runtime isn't ready yet
What to do:
- Click the Start button first
- Wait for initialization (3-5 seconds)
- Grasshopper button becomes available
- Click Grasshopper to open editor
Grasshopper window doesn't appear
What to do:
- Check if window is hidden behind other windows
- Click Grasshopper button again
- Try Alt+Tab to find Grasshopper window
- Restart Revit if issue persists
Grasshopper crashes when opening
What to do:
- Check for conflicting Grasshopper plugins
- Run Grasshopper in standalone Rhino to test
- Disable problematic plugins
- Update to latest Rhino version
- Restart Revit
Slow performance with large definitions
What to do:
- Use Preview Off on heavy components
- Disable solver when editing
- Break complex definitions into smaller parts
- Close Grasshopper when not in use
Note:
- Rhino/Grasshopper running in Revit shares the system resources with the running Revit instance.
- Hence performance impact can and should be expected.