if multiple splines on the same place... no selection is visable #59471

New Issue

Fabian · 2018-12-16T21:56:18+01:00

Fabian commented

2018-12-16 21:56:18 +01:00

Operating system: Linuxmint 19.0
Graphics card:Geforce GTX1050

Blender Version
81ea815dcb, blender2.8, 2018-12-12

I created a spline for modelling.
Then I converted the spline into a mesh.

I want to delete some vertices, but I could not select any.
By clicking an moving I saw there is 1 vertice selected.

But any other selection is blind.

By the way: I don't even know how these >10 splines were created...
suddenly they where there...

Bug-Multiple Objects.blend

Operating system: Linuxmint 19.0 Graphics card:Geforce GTX1050 Blender Version 81ea815dcb6, blender2.8, 2018-12-12 I created a spline for modelling. Then I converted the spline into a mesh. I want to delete some vertices, but I could not select any. By clicking an moving I saw there is 1 vertice selected. But any other selection is blind. By the way: I don't even know how these >10 splines were created... suddenly they where there... [Bug-Multiple Objects.blend](https://archive.blender.org/developer/F5974267/Bug-Multiple_Objects.blend)

Fabian commented

2018-12-16 21:56:18 +01:00

Added subscriber: @plusQ

Sebastian Parborg commented

2018-12-17 14:43:36 +01:00

Added subscriber: @ZedDB

Sebastian Parborg commented

2018-12-17 14:43:36 +01:00

It seems like you have created a mesh with multiple overlapping verts. I can not reproduce this issue with the latest blender beta if I create a spline and convert it to a mesh.

If you figure out how you got to this state then please post an update here and we can continue.

But as it is now, there is nothing to go on really as the .blend file does not show of the bug.

So download the latest blender beta from https://www.blender.org/download/ and try to reproduce this issue. If you manage to reproduce it. Make sure you know how to trigger it.

It seems like you have created a mesh with multiple overlapping verts. I can not reproduce this issue with the latest blender beta if I create a spline and convert it to a mesh. If you figure out how you got to this state then please post an update here and we can continue. But as it is now, there is nothing to go on really as the .blend file does not show of the bug. So download the latest blender beta from https://www.blender.org/download/ and try to reproduce this issue. If you manage to reproduce it. Make sure you know how to trigger it.

Fabian commented

2018-12-18 21:37:08 +01:00

ok,

to reproduce it:

add a curve - circle

go into Edit-Mode

select all vertices
Shift-D to duplicate - and Rightclick
deselect all

Now you can click on a vertice once - nothing is (visually) selected
click twice, then the vertice of the 2. circle is selected even visually.

to see that better:

Duplicate some more circles in Edit-Mode

I have e.g. 96 vertices now, and I can not see what is selected

Blender should show that "something" is marked.

In Blender version 18.12.2018 is the same...

ok, to reproduce it: add a curve - circle go into Edit-Mode select all vertices Shift-D to duplicate - and Rightclick deselect all Now you can click on a vertice once - nothing is (visually) selected click twice, then the vertice of the 2. circle is selected even visually. to see that better: Duplicate some more circles in Edit-Mode I have e.g. 96 vertices now, and I can not see what is selected Blender should show that "something" is marked. In Blender version 18.12.2018 is the same...

Sebastian Parborg commented

2018-12-18 21:52:45 +01:00

Added subscriber: @fclem

Sebastian Parborg commented

2018-12-18 21:52:45 +01:00

Ok, so this is more of a feature request then. You do not normally have these many overlapping verts.

@fclem have any input on this?

Ok, so this is more of a feature request then. You do not normally have these many overlapping verts. @fclem have any input on this?

Fabian commented

2018-12-18 21:58:08 +01:00

why is it a "feature request"?!?!?

overlapping vertices in meshes... works fine...
only on curves is the problem.

So that's not a feature... it's a bug

why is it a "feature request"?!?!? overlapping vertices in meshes... works fine... only on curves is the problem. So that's not a feature... it's a bug

Sebastian Parborg commented

2018-12-18 22:33:08 +01:00

But the .blend example you gave is a mesh (so meshes do not work fine).

This is a problem where multiple stacked verts are not easily visualized. I don't know when you would want to have this many stacked verts.

I said this is a feature request because the way modern render engines work, objects that occupy the exact same space are bound to have render issues.
There could of course be workarounds that would solve this.

I don't know why you are so defensive about this. Even if this is a bug, it's not horribly crashing or breaking blender. So the developers will get around to this when they have time.

But the .blend example you gave is a mesh (so meshes do not work fine). This is a problem where multiple stacked verts are not easily visualized. I don't know when you would want to have this many stacked verts. I said this is a feature request because the way modern render engines work, objects that occupy the exact same space are bound to have render issues. There could of course be workarounds that would solve this. I don't know why you are so defensive about this. Even if this is a bug, it's not horribly crashing or breaking blender. So the developers will get around to this when they have time.

Pablo Dobarro commented

2020-02-06 01:14:18 +01:00

Added subscriber: @PabloDobarro

Pablo Dobarro commented

2020-02-06 01:14:18 +01:00

In this video I have 4 vertices stacked on top of each other. When you use click to select, the color difference is minimal, so I consider this a know issue and something that can be improved as all the overlapping vertices can still be selected individually, so it does not affect the selection functionality.
2020-02-06 01-16-53.mp4

#59471.blend

In this video I have 4 vertices stacked on top of each other. When you use click to select, the color difference is minimal, so I consider this a know issue and something that can be improved as all the overlapping vertices can still be selected individually, so it does not affect the selection functionality. [2020-02-06 01-16-53.mp4](https://archive.blender.org/developer/F8324656/2020-02-06_01-16-53.mp4) [#59471.blend](https://archive.blender.org/developer/F8324664/T59471.blend)

Philipp Oeser removed the

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if multiple splines on the same place... no selection is visable #59471