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Ambiant Occlusion - Little circle in orthographic view
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System Information
Ubuntu 14.04 x64, core i5 750, Nvidia GTX 260, driver 340.76(has bug), Windows 8.1 intel atom 3735F, Intel graphics (work correct)
Blender Version
Broken: 2.74 RC3 8804e64, RC2, RC1 - x64-x86
Worked: 2.73 bbf09d9

Short description of error
Little circle in viewport when camera settings selected a orthographic view. Circle not see on render only in viewport.
Exact steps for others to reproduce the error

  1. Default scene.
  2. View -> Camera
  3. Camera settings: orthographic

Circle is a camera center dot in a camera icon(when you see a camera in viewport). See screenshots.
I can't reproduce on notebook with windows 8.1 and other old PC with debian.

Event Timeline

Alexey Khoral (allkhor) raised the priority of this task from to 90.
Alexey Khoral (allkhor) updated the task description. (Show Details)
Alexey Khoral (allkhor) edited a custom field.

Windows 7 x64 has not reproduced, maybe a ubuntu|hardware specific glitch...

This si more than likely a driver issue, yes. Please try to start in software OpenGL mode (use the blender-softwaregl distributed with official blender, will be slow, but will show whether this is a driver issue or not).

Antony, assigning to you, since you are our viewport OGL master (and issue is related to ambiant occlusion it seems). :)

Bastien Montagne (mont29) renamed this task from Little circle in orthographic view to Ambiant Occlusion - Little circle in orthographic view.Mar 27 2015, 11:53 AM
Bastien Montagne (mont29) lowered the priority of this task from 90 to 30.

I'm not sure what I'm seeing. First of all manipulator is messed up. This really does look like a linux bug. Are you using the NVIDIA driver? What does your System_Info.txt file report? @Bastien Montagne (mont29) we really need to add instructions for system_info.txt in the template at some point.

Alright, I can see how manipulator is different in ortho mode now. But this really does look like a driver issue.

With blender-softwaregl all ok. Ambient oclusion was been enabled to show a circle position.
Two screenshots with one scenes, blender version 2.73(no glitch) & 2.74(bug present).

The circle visible, only if camera selected, because it part of camera.

Can you try with factory settings and see if the issue persists?

I deleted ~/.config/blender/2.74, this resets to default settings, and the issue persist. Tested on Blender 2.74 RC4, bug still here.

Some video for more understanding what's happening.

Antonis Ryakiotakis (psy-fi) changed the task status from Unknown Status to Unknown Status.Mar 31 2015, 5:42 PM

Looks driver specific and it doesn't crash, will archive for now.