Screw-modifier crash in cunjunction with subsurf modifier #28423

Closed
opened 2011-08-30 13:31:00 +02:00 by Tungee · 15 comments

%%%Blender crashes, when i put a subsurf modifier after a screw modifier and then try to drag the steps of revolution upwards and downwoards. It crashes exactly at 3 revolutions.
A blend file is attached.
%%%

%%%Blender crashes, when i put a subsurf modifier after a screw modifier and then try to drag the steps of revolution upwards and downwoards. It crashes exactly at 3 revolutions. A blend file is attached. %%%
Author

Changed status to: 'Open'

Changed status to: 'Open'
Author

%%%
All other modifiers than the subsurf modifier after a screw-modifier does nort crash blender.%%%

%%% All other modifiers than the subsurf modifier after a screw-modifier does nort crash blender.%%%

%%%Can't reproduce this bug here (linux 64bit, nvidia). Which OS and hardware you're using?%%%

%%%Can't reproduce this bug here (linux 64bit, nvidia). Which OS and hardware you're using?%%%
Author

%%%Im on osx 10.5 and Imac inteldualcore.%%%

%%%Im on osx 10.5 and Imac inteldualcore.%%%

%%%Can’t reproduce it either (debian 64, ati 5730m)…%%%

%%%Can’t reproduce it either (debian 64, ati 5730m)…%%%
Member

%%%I can reproduce this in Ubuntu 11.04 32-bit.

Steps to reproduce with the blendfile attached:

  1. Open file. Do the following steps in edit mode.
  2. In the screw modifier settings set Steps = 2.
  3. Now change steps to any number != 2. Note that geometry is already broken and some of vertices were placed in the object center line.
  4. Change any field for Screw modifier (like steps, angle) or disable the subsurf modifier or go to the object mode to invoke recalculation of the vertices coordinates. Blender will crash.%%%
%%%I can reproduce this in Ubuntu 11.04 32-bit. Steps to reproduce with the blendfile attached: 1) Open file. Do the following steps in edit mode. 2) In the screw modifier settings set Steps = 2. 3) Now change steps to any number != 2. Note that geometry is already broken and some of vertices were placed in the object center line. 4) Change any field for Screw modifier (like steps, angle) or disable the subsurf modifier or go to the object mode to invoke recalculation of the vertices coordinates. Blender will crash.%%%

%%%Confirmed. Assigning to self for investigation.%%%

%%%Confirmed. Assigning to self for investigation.%%%

%%%Fixed in svn rev39903. Thanks for the report.%%%

%%%Fixed in svn rev39903. Thanks for the report.%%%
Author

%%%Hi Sergey,
Im using blender 39905 and the bug still exists.%%%

%%%Hi Sergey, Im using blender 39905 and the bug still exists.%%%

%%%Chris, we have to know exact steps to reproduce crash. Description from initial post isn't so clear.%%%

%%%Chris, we have to know exact steps to reproduce crash. Description from initial post isn't so clear.%%%
Author

%%%I made a description video for the bug:
http://vimeo.com/28582434%%%

%%%I made a description video for the bug: http://vimeo.com/28582434%%%

%%%You aren't using newer version of Blender in this video. You can't set steps for screw modifier to something which is less than 3. Make sure you're using trunk (not branches) and that it's newer than svn revision 39903.%%%

%%%You aren't using newer version of Blender in this video. You can't set steps for screw modifier to something which is less than 3. Make sure you're using trunk (not branches) and that it's newer than svn revision 39903.%%%
Author

%%%Sergey, i used yesterday the actuall freestyle branch; The crash has gone with the actual blender build. Thank you!%%%

%%%Sergey, i used yesterday the actuall freestyle branch; The crash has gone with the actual blender build. Thank you!%%%

%%%Crash would be fixed in freestyle when it's author merge trunk there. Closing report now.%%%

%%%Crash would be fixed in freestyle when it's author merge trunk there. Closing report now.%%%

Changed status from 'Open' to: 'Resolved'

Changed status from 'Open' to: 'Resolved'
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Reference: blender/blender#28423
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