Rhino 5/WIP and Grasshopper Crash


(Laurent Delrieu) #1

Rhino 5 or WIP and Grasshopper are crashing when I connect parameter from Mesh Closest Point to Mesh Eval parameter

test_bug_v6.gh (129.7 KB)

(Laurent Delrieu) #2

Is it a bug or not ?

(David Rutten) #3

Yup, it’s definitely a bug. Quite a serious one too.
I’ve logged it on YouTrack.

(Laurent Delrieu) #4


(David Rutten) #5

I fixed it, meshes without normal vectors would always crash. However I’m somewhat surprised the mesh lacks normals to begin with… the mystery deepens.

(Laurent Delrieu) #6

Thanks for the fix, I will test that on next WIP.
I don’t understand, I see normals on the mesh I gave. This mesh is generated with the component “import Image” All normals are -z vector.

(David Rutten) #7

Some components will generate normals if they don’t exist yet, but the Mesh Eval component is not amongst them. The mesh itself has no normal vectors.

(Laurent Delrieu) #8

Ok so deconstruct mesh generate normals