strange lines on 3D view on bezier curves with bevel object #34464

New Issue

Alexander N. · 2013-02-27T20:13:37+01:00

Alexander N. commented

2013-02-27 20:13:37 +01:00

%%%--- Operating System, Graphics card ---
windows 64 sp1 64bit, intel i7-3770 internal GPU on the CPU

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

blender-2.66-windows64.7z - with issue
blender-2.66-r54896-win64.zip - with issue

- Short description of error ---

on my system with internal GPU, i have issues in the 3D View, when i am in wire-mode and some bezier curves have bevel objects applied.
on every redraw/update of the 3D View i get random lines in the viewport.

i tried all "Window Draw Mode", but all shows that issue.

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

i attached a blend file i was working with.

if it is too confusing:
0. open blender, - [x], - [x], [DEL], [ENTER]

switch to wire mode in the 3d viewport
[Shift]+- , - , - , create a bezier circle (for later use as bevel object)
[Shift]+- , - , - , create a bezier curve
[TAB] , enter edit mode
extrude 6 or more times.
[Alt]+- , to close the bezier curve to a cylic one.
put the created bezier circle as bevel object.

maybe you already will see some random lines in the 3d viewport... if not, add more points in the bezier curve and or create more bezier curves with bevel objects applied.

BUT maybe it is again a intel internal GPU issue...
%%%

%%%--- Operating System, Graphics card --- windows 64 sp1 64bit, intel i7-3770 internal GPU on the CPU - Blender version with error, and version that worked --- blender-2.66-windows64.7z - with issue blender-2.66-r54896-win64.zip - with issue - Short description of error --- on my system with internal GPU, i have issues in the 3D View, when i am in wire-mode and some bezier curves have bevel objects applied. on every redraw/update of the 3D View i get random lines in the viewport. i tried all "Window Draw Mode", but all shows that issue. - Steps for others to reproduce the error (preferably based on attached .blend file) --- i attached a blend file i was working with. if it is too confusing: 0. open blender, - [x], - [x], [DEL], [ENTER] 1. switch to wire mode in the 3d viewport 2. [Shift]+- [x], - [x], - [x] , create a bezier circle (for later use as bevel object) 3. [Shift]+- [x], - [x], - [x] , create a bezier curve 3. [TAB] , enter edit mode 4. extrude 6 or more times. 5. [Alt]+- [x] , to close the bezier curve to a cylic one. 6. put the created bezier circle as bevel object. maybe you already will see some random lines in the 3d viewport... if not, add more points in the bezier curve and or create more bezier curves with bevel objects applied. BUT maybe it is again a intel internal GPU issue... %%%

Alexander N. commented

2013-02-27 20:13:37 +01:00

Changed status to: 'Open'

Nobody commented

2013-02-27 20:13:37 +01:00

Changed status from 'Open' to: 'Archived'

Nobody closed this issue

2013-02-27 20:13:37 +01:00

Alexander N. commented

2013-02-27 21:13:33 +01:00

%%%PS.: i just saw, it will also happen in solid view mode, when these curves are selected - than only the selection outlines are affected.%%%

Tobias Oelgarte commented

2013-02-27 21:19:54 +01:00

%%%I can't reproduce this problem on a GTX 560 TI under Ubuntu 12.04. I might really be an Intel driver bug, but it could also be a bug in the drawing code that is not visible on Nvidia GPUs, because the drivers handle things a bit differently. %%%

Tobias Oelgarte commented

2013-02-27 21:22:14 +01:00

%%%PS: Maybe you should test the same files with the software OpenGL script. If it also shows this drawing bugs, then it is most likely a bug in the drawing code.%%%

Campbell Barton commented

2013-02-28 05:30:27 +01:00

%%%Moved from Blender 2.6 Bug Tracker to OpenGL errors%%%

Campbell Barton commented

2013-02-28 05:30:27 +01:00

%%%loaded the file here on my GeForce GTS 450 and it works correctly.
moving to OpenGL errors.%%%

%%%loaded the file here on my GeForce GTS 450 and it works correctly. moving to OpenGL errors.%%%

Alexander N. commented

2013-02-28 18:17:59 +01:00

%%%sorry, i was searching long time for to find that thread again...

here some details of the graphic manager:
http://www.pasteall.org/40110/text

and i can not reproduce my issue on other computers / even not on the computer with exact the same hardware expect the graphiccard - the other system has an AMD HD 5670 graphiccard.

  Date: 2013-02-27 20:22
  Sender: Tobias Oelgarte
  PS: Maybe you should test the same files with the software OpenGL script. If it also shows this drawing bugs, then it is most likely a bug in the drawing code.

what do you mean with OpenGL script?%%%

%%%sorry, i was searching long time for to find that thread again... here some details of the graphic manager: http://www.pasteall.org/40110/text and i can not reproduce my issue on other computers / even not on the computer with exact the same hardware expect the graphiccard - the other system has an AMD HD 5670 graphiccard. ``` Date: 2013-02-27 20:22 Sender: Tobias Oelgarte PS: Maybe you should test the same files with the software OpenGL script. If it also shows this drawing bugs, then it is most likely a bug in the drawing code. ``` what do you mean with OpenGL script?%%%

Alexander N. commented

2013-03-02 18:16:19 +01:00

%%%also issues in Blender Game Engine
there the blend i tested
http://pasteall.org/blend/19753
(it is from that thread http://www.blendernation.com/2013/03/02/studio-physics-demo/#utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Blendernation+%28BlenderNation%29)

the bigger the window of the viewport is, the bigger are the issues...
(on the clone PC with none-gpu-on-cpu there is no that issue, so it is clear, it must be a problem with the internal-GPU -on-CPU of the intel i7-3770 or its driver)%%%

%%%also issues in Blender Game Engine there the blend i tested http://pasteall.org/blend/19753 (it is from that thread http://www.blendernation.com/2013/03/02/studio-physics-demo/#utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+Blendernation+%28BlenderNation%29) the bigger the window of the viewport is, the bigger are the issues... (on the clone PC with none-gpu-on-cpu there is no that issue, so it is clear, it must be a problem with the internal-GPU -on-CPU of the intel i7-3770 or its driver)%%%

Alexander N. commented

2013-04-28 07:11:18 +02:00

%%%[#35039] for additional info (specially the video)%%%

Alexander N. commented

2013-12-10 21:28:16 +01:00

Added subscriber: @beta-tester

Alexander N. commented

2013-12-10 21:28:16 +01:00

i noticed all the above shown issues (strange lines and game engine) do not exist in the same hardware but windows 8.1 64bit and blender 2.69.x.
i have no windows 7 anymore, so i don't know, if the issues are gone by newer intel graphic drivers or if the reason is in blender 2.69.x...

i only wanted to let you know...

i noticed all the above shown issues (strange lines and game engine) do not exist in the same hardware but windows 8.1 64bit and blender 2.69.x. i have no windows 7 anymore, so i don't know, if the issues are gone by newer intel graphic drivers or if the reason is in blender 2.69.x... i only wanted to let you know...

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strange lines on 3D view on bezier curves with bevel object #34464