I have been having issues with Text objects disappearing from my viewports. The objects are still there but will only appear if selected. I have tried to re-create steps for producing this however it seems to occur sporadically after doing some modeling operations with text present in the scene OR when placing new text after doing some modeling.
It also appears that the issue affects only certain view types (wireframe and shaded, for example). I have also had a few instances where the “Text” command fails to prompt for text placement altogether.
I have seen a few older posts that might related (for example the dimension issue here) but the issue appears to be persisting with the latest version of Rhino 6 (at the time of this post, SR5 6.5.18155.13161, 6/4/2018)
Here is a screenshot. I have also attached the file. TextTest.3dm (223.7 KB)
Have you been able to look at this any further? The issues with disappearing text is still persisting on my machines (and others here). We recently ran a workshop at another firm and some others were also experiencing this problem in fresh models.
Sorry about not getting back to you sooner on this. Somehow the Room layer in that model has a display color that is magenta, but has its alpha set to completely transparent. If I click on the Room layer in Rhino and adjust the color to magenta again, the text shows back up.
Did the layers in this model get generated through code? Many times when I see completely transparent colors I treat them as completely opaque and I can do so in this case. I’m mostly curious as to how that layer got its color.
Makes sense, we completely ignored the alpha value in V5
I’ll update the 6.7 release candidate code to handle the special case of completely transparent so you don’t have to worry about changing your code. This won’t be in today’s 6.7 release candidate since I haven’t typed up a fix yet.
Good news… I ran some tests on the code-generated Layer and ensured the alpha channel was being set correctly for Layer color. It also appears that this was the cause of the issue I was having with the mesh select/deselect here: V6 Bug - Mesh Edge Selection Visibility/Color Problems
Do you have an opinion on what we should do in this case (completely transparent)? There is a ise case for just filling the z buffer with transparent geometry, so I’m not sure if I should treat this case specially