Snap does not work properly with "Surface" object #69209

New Issue

Roberto · 2019-08-27T12:57:08+02:00

Roberto commented

2019-08-27 12:57:08 +02:00

System Information
Operating system: Windows-10-10.0.17134 64 Bits
Graphics card: GeForce GTX 760/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 436.02

Blender Version
Broken: version: 2.81 (sub 3), branch: master, commit date: 2019-08-26 20:39, hash: ce2368cf69
Worked: (optional)

As the title suggests, the snap functions do not work correctly in "edit mode" of a "Surface" object.

Create a surface object such as a "Nurbs Curve".
Change the snap from the grid to the vertices.
Duplicate a curve and move it with respect to the first
Move a CP by pressing CTRL and point the mouse to another CP
Snap fails

**System Information** Operating system: Windows-10-10.0.17134 64 Bits Graphics card: GeForce GTX 760/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 436.02 **Blender Version** Broken: version: 2.81 (sub 3), branch: master, commit date: 2019-08-26 20:39, hash: `ce2368cf69` Worked: (optional) As the title suggests, the snap functions do not work correctly in "edit mode" of a "Surface" object. 1. Create a surface object such as a "Nurbs Curve". 2. Change the snap from the grid to the vertices. 3. Duplicate a curve and move it with respect to the first 4. Move a CP by pressing CTRL and point the mouse to another CP 5. Snap fails

Roberto commented

2019-08-27 12:57:08 +02:00

Added subscriber: @RobertoAngelino

Abid Maqbool commented

2019-08-27 14:24:51 +02:00

Added subscriber: @AbidMaqbool

Abid Maqbool commented

2019-08-27 14:24:51 +02:00

Looks like, Grid Snapping is executing even changed to others e.g. vertex

Looks like, **Grid Snapping** is executing even changed to others e.g. vertex

Philipp Oeser commented

2019-08-28 11:55:08 +02:00

Added subscriber: @lichtwerk

Philipp Oeser commented

2019-08-28 11:55:08 +02:00

Working fine here (f88022b96f, linux, 970m, 430.26 drivers), see

#69209.blend

is this failing in above file for you, too?
have you recently upgraded your driver? (I need to upgrade mine as well), just asking because I had another report with the newest driver failing, whereas an older driver worked fine...

Working fine here (f88022b96f, linux, 970m, 430.26 drivers), see [#69209.blend](https://archive.blender.org/developer/F7707486/T69209.blend) - is this failing in above file for you, too? - have you recently upgraded your driver? (I need to upgrade mine as well), just asking because I had another report with the newest driver failing, whereas an older driver worked fine...

Abid Maqbool commented

2019-08-28 12:45:14 +02:00

@lichtwerk Same problem in your provided test file...
However, I think... you were checking in Curves Type Objects...
The proposed problem is more with Surface Type Objects

System Information
Operating system: Windows-10-10.0.16299 64 Bits
Graphics card: AMD Radeon HD 8400 / R3 Series ATI Technologies Inc. 4.5.13399 Core Profile Context 15.200.1065.0

@lichtwerk **Same problem** in your provided test file... However, I think... you were checking in **Curves** Type Objects... The proposed problem is more with **Surface** Type Objects ![image.png](https://archive.blender.org/developer/F7707571/image.png) **System Information** Operating system: Windows-10-10.0.16299 64 Bits Graphics card: AMD Radeon HD 8400 / R3 Series ATI Technologies Inc. 4.5.13399 Core Profile Context 15.200.1065.0

Philipp Oeser self-assigned this 2019-08-28 13:09:25 +02:00

Philipp Oeser commented

2019-08-28 13:09:25 +02:00

@AbidMaqbool : Ah, thanx for pointing this out [my bad, sorry].
Can confirm for Surface Types.
However 2.79 did the same thing here, will need some digging why this is...

So might be falling back to Increment on purpose, will check code on it...
(will confirm/claim for the time being though...)

@AbidMaqbool : Ah, thanx for pointing this out [my bad, sorry]. Can confirm for **Surface** Types. However 2.79 did the same thing here, will need some digging why this is... So might be falling back to `Increment` on purpose, will check code on it... (will confirm/claim for the time being though...)

Philipp Oeser removed their assignment 2019-11-06 12:23:27 +01:00

Philipp Oeser commented

2019-11-06 12:23:27 +01:00

Added subscriber: @mano-wii

Philipp Oeser commented

2019-11-06 12:23:27 +01:00

@mano-wii: think this similar to #70865 (Support for snapping to Lattice objects)... Interested?

Germano Cavalcante commented

2019-11-06 12:46:13 +01:00

This is a feature that has been requested for a long time (#51249).
I will use this report to keep a track.

This is a feature that has been requested for a long time (#51249). I will use this report to keep a track.

Adam Janz commented

2019-11-28 21:22:19 +01:00

Added subscriber: @AdamJanz

Adam Janz commented

2019-11-28 21:22:19 +01:00

Yes, I hope this can be fixed as well. I just came across this behavior myself trying to snap a nurbs surface to other vertices. It definitely would be beneficial to have vertex snapping for nurbs surfaces for greater precision. Thanks!

Germano Cavalcante commented

2020-06-29 15:26:53 +02:00

Closed as duplicate of #78434

Germano Cavalcante closed this issue

2020-06-29 15:26:53 +02:00

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Snap does not work properly with "Surface" object #69209