Optimal Display overriden in a modifier stack #39350

New Issue

Sanc Tuary · 2014-03-22T21:04:20+01:00

Sanc Tuary commented

2014-03-22 21:04:20 +01:00

System Information
Operating system and graphics card
xp sp3

Blender Version
Broken: all 2.6x- 2.7 versions i tested
Worked: Blender 2.49b

Short description of error
if you enable Wire and Draw All Edges (in the Object panel on the right of the screen) on an object that has a Subdivision surface modifier or a Multiresolution modifier, and enable Optimal Display on the modifier, as you expect the wire displayed is the one from the level 0 of the subsurf/multires

But if you add a shrinkwrap modifier that target another object, the Optimal Display is overriden and all the edges will always be displayed, regardless if Optimal Display is enabled or not

Exact steps for others to reproduce the error

add a subsurf to default cube, subsurf a bit and apply the subsurf, hide to to see better what's next
add another cube , add a subsurf modifier, subsurf a couple of time but do not apply the subsurf
in the Object panel enable "Wire" and "Draw All Edges", you see all the edges appearing
in the subsurf modifier enable "Optimal Display" so only the edges of level 0 of the subsurf are displayed

so far good

now add a shrinkwrap modifier, target the polysphere (subdivide cube) you created before
after doing that, you'll see that suddenly all the edges are displayed, despite you have the Optimal Display enabled.

to speed up, just load the blend i attach here that has all the steps already done if i'm not clear enough :
optimaldispedge01.blend

**System Information** Operating system and graphics card xp sp3 **Blender Version** Broken: all 2.6x- 2.7 versions i tested Worked: Blender 2.49b **Short description of error** if you enable Wire and Draw All Edges (in the Object panel on the right of the screen) on an object that has a Subdivision surface modifier or a Multiresolution modifier, and enable Optimal Display on the modifier, as you expect the wire displayed is the one from the level 0 of the subsurf/multires But if you add a shrinkwrap modifier that target another object, the Optimal Display is overriden and all the edges will always be displayed, regardless if Optimal Display is enabled or not **Exact steps for others to reproduce the error** - add a subsurf to default cube, subsurf a bit and apply the subsurf, hide to to see better what's next - add another cube , add a subsurf modifier, subsurf a couple of time but do not apply the subsurf - in the Object panel enable "Wire" and "Draw All Edges", you see all the edges appearing - in the subsurf modifier enable "Optimal Display" so only the edges of level 0 of the subsurf are displayed so far good - now add a shrinkwrap modifier, target the polysphere (subdivide cube) you created before after doing that, you'll see that suddenly all the edges are displayed, despite you have the Optimal Display enabled. to speed up, just load the blend i attach here that has all the steps already done if i'm not clear enough : [optimaldispedge01.blend](https://archive.blender.org/developer/F82230/optimaldispedge01.blend)

Sanc Tuary commented

2014-03-22 21:04:20 +01:00

Changed status to: 'Open'

Sanc Tuary commented

2014-03-22 21:04:20 +01:00

Added subscriber: @sanctuary

Bastien Montagne commented

2014-03-22 23:26:08 +01:00

Added subscriber: @mont29

Bastien Montagne self-assigned this 2014-03-22 23:26:19 +01:00

Bastien Montagne commented

2014-03-23 11:44:47 +01:00

Changed status from 'Open' to: 'Archived'

Bastien Montagne closed this issue

2014-03-23 11:44:47 +01:00

Bastien Montagne commented

2014-03-23 11:44:47 +01:00

In fact, this is not a bug, rather an internal limitation. This feature can only work as long as subsurf data are available from modifier stack - if another modifier down in the stack replaces it for some reason, this simply cannot work. Thanks for the report, anyway.

Sign in to join this conversation.

No Label

Download

What's New

Blender Studio

Manual

Developers Blog

Documentation

Benchmark

Blender Conference

Development Fund

One-time Donations

Optimal Display overriden in a modifier stack #39350