When Material Options > Surface is active with complex node network, viewport slows down significantly #35051

New Issue

Carlo Andreacchio · 2013-04-22T02:50:19+02:00

Carlo Andreacchio commented

2013-04-22 02:50:19 +02:00

%%%--- Operating System, Graphics card ---
Windows 7, gtx 580

- Blender version with error, and version that worked ---

Buildbot : r55223 - Error
Buildbot : r56100 - Error
Buildbot : r46883 - Error

- Short description of error ---

significant viewport slowdown when surface info is visible in material settings on complex node networks

- Steps for others to reproduce the error (preferably based on attached .blend file) ---

Open Blender
Open attached blend file
Move viewport / node editor, look at the responsivity
In material settings window, enable surface
Move viewport / node editor, look at responsivity%%%

%%%--- Operating System, Graphics card --- Windows 7, gtx 580 - Blender version with error, and version that worked --- Buildbot : r55223 - Error Buildbot : r56100 - Error Buildbot : r46883 - Error - Short description of error --- significant viewport slowdown when surface info is visible in material settings on complex node networks - Steps for others to reproduce the error (preferably based on attached .blend file) --- 1. Open Blender 2. Open attached blend file 3. Move viewport / node editor, look at the responsivity 4. In material settings window, enable surface 5. Move viewport / node editor, look at responsivity%%%

Carlo Andreacchio commented

2013-04-22 02:50:19 +02:00

Changed status to: 'Open'

Carlo Andreacchio commented

2013-04-22 02:53:27 +02:00

%%%To fix slowdown, switch out of material tab to something like the object data tab or physics tab or something... it seems that you can switch back to the material tab and viewport performance is still good... its just that first initial viewing of the surface material.
%%%

%%%To fix slowdown, switch out of material tab to something like the object data tab or physics tab or something... it seems that you can switch back to the material tab and viewport performance is still good... its just that first initial viewing of the surface material. %%%

Brecht Van Lommel commented

2013-04-22 14:34:37 +02:00

%%%If you expand all node sockets in the material properties then indeed things will be slow, all I can suggest is to avoid doing that for complex node networks, viewing a graph as a tree view gives many duplicated nodes. Viewing the nodes is mainly meant for simple node setups or cases where you create group nodes to hide that complexity and present a simpler view in the material properties.

Navigating the 3D view shouldn't be causing the material properties to redraw though, will figure out why that happens.%%%

%%%If you expand all node sockets in the material properties then indeed things will be slow, all I can suggest is to avoid doing that for complex node networks, viewing a graph as a tree view gives many duplicated nodes. Viewing the nodes is mainly meant for simple node setups or cases where you create group nodes to hide that complexity and present a simpler view in the material properties. Navigating the 3D view shouldn't be causing the material properties to redraw though, will figure out why that happens.%%%

Brecht Van Lommel commented

2013-04-22 17:04:07 +02:00

%%%There was a problem handling such huge panels, which was causing the properties editor to continuously redraw. Fix in svn now, thanks for the report.%%%

Brecht Van Lommel commented

2013-04-22 17:04:08 +02:00

Changed status from 'Open' to: 'Resolved'

Brecht Van Lommel closed this issue

2013-04-22 17:04:08 +02:00

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When Material Options > Surface is active with complex node network, viewport slows down significantly #35051