Can't see Grasshopper linework

I have been having this problem for a couple of weeks now. I cannot see grasshopper line work when the reference rhino geometry is un-hidden. How do I fix this? Please see the attached images. One show the line referenced into grasshopper (note that it is not red). the second image shows what I see when I hide the rhino geometry.

Attachments:

Line referenced into grashopper.JPG, 228 KB
line hidden.JPG, 224 KB

Replies to This Discussion

Permalink Reply by Danny Boyes on November 26, 2013 at 11:02am

I suspect you've turned the Bump Preview Option off.

Permalink Reply by Jesus Galvez on November 26, 2013 at 11:21am

When I first saw it I thought that now you could add bump maps in grasshopper and that button was to preview them! Is it just me that thinks it could have been better named?

Permalink Reply by Danny Boyes on November 26, 2013 at 11:42am

I see your point.

It has its pros and cons but I believe that the "display quirk" is better turned off.

without you see the Rhino Lines unfortunately

With bump the line is slightly in front of the reference Box so that a tiny portion in the corner is still visible even though its behind

There is also a bug in the OpenGL display Pipeline for Point Flavours other than Cross.

Without all seems fine

With Bump the Reference Point is not displayed in the same place

Permalink Reply by David Rutten on November 26, 2013 at 11:49am

Yeah it's a trade-off between two shitty options. Bumping the geometry introduces all sorts of weird artifacts but not bumping it means it gets occluded by the underlying Rhino geometry.

Maybe I should just start drawing referenced curves 2 pixels wider than Rhino curves so you can see a red or green 'glow' around the rhino curve objects.

I'm not going to touch the display for GH1 anymore, I'm steaming towards feature-completeness as fast as I can right now.

David Rutten

david@mcneel.com

Permalink Reply by Danny Boyes on November 26, 2013 at 11:54am

Aye Aye Captain! Full steam ahead!

Permalink Reply by Jesus Galvez on November 26, 2013 at 4:20pm

Another excellent handbook explanation.

I usually just hide the layers from rhino that overlay with grasshopper.

This made me think about Diablo 2's Tab shortcut key to overlay the map on the main window (ahww what memories...). Perhaps a tab shortcut for grasshopper for some handy functionality?

Permalink Reply by Pierre Roberson on November 26, 2013 at 6:34pm