[Bf-committers] Dolly bug

Campbell Barton ideasman42 at gmail.com
Tue Nov 1 23:26:33 CET 2011

Please report bugs in the tracker, also the images references are not
found so I'm not sure what you mean...

Are you familier with 'Auto Depth' & 'Zoom to Mouse Position' options?
- for navigating large 3D scenes I think enabling both these options
works a lot more usefully.

We get quite a few complaints about not being able to zoom past the
point of orbit,
a few releases ago I added a dolly operator (different from dolly zoom style).
Access with: Ctrl+Shift+MMB Drag

IMHO This works nicest with pref 'Interface -> Zoom To Mouse Position' enabled.

To reply to some of you're comments...

1) rotate about object should use boundbox center rather than the origin?
  ... yep, I few times I've noticed this especially when the center is
at the base of the object the option is a bit annoying,
  so bounbox center could be nicer.

2) rotate about object should change zoom as well?
  eeh, not sure this is a good idea, if it affects zoom it may as well
work for Pan too and be renamed to...
  "Set View Depth Based on Selection", which would be a bit like auto
depth but instead of the z-depth under the mouse use the selection.
  While all these options can be added I worry with this kind of thing
that we add all sorts of tweaks without really giving the user a
better experience, even what we have now with view options is hard to
grasp IMHO.

On Wed, Nov 2, 2011 at 8:49 AM, Jonathan Smith <j.jaydez at gmail.com> wrote:
> Blender's Latest version is 2.60. It might be good to retest your files
> with the latest version if you could, since the problem might have already
> been fixed. Also the links you provided for images are not working.
> On Wed, Nov 2, 2011 at 5:51 AM, Juhana Sadeharju <kouhia at nic.funet.fi>wrote:
>> In Blender 2.4.5. Test yours.
>> User preferences are "dolly", "turntable", "around selection".
>> First I moved the selected cube to far corner of the ground plane:
>> http://www.uta.fi/~majuko/blenderdollybug1.png
>> Then I scrolled (dolly) forward.
>> The problem is that I cannot go nearer the cube than this:
>> http://www.uta.fi/~majuko/blenderdollybug2.png
>> Please check Construction Set of Morrowind/Oblivion/Fallout3
>> for how the dolly should work. Blender has now some kind of
>> invisible barrier which cannot be passed; that is wrong and
>> odd.
>> Possible problem: Blender calculates the distance to origin,
>> not to the selected object.
>> (Actually the distance to the plane which goes through the
>> world origin and has the center view ray as normal. When
>> that distance goes to 0, the view stops as shown.)
>> When the turntable is implemented around the selection, the
>> distance should be calculated from the selection.
>> The wrong code must be in the dolly code because the rotation
>> around the object is performed correctly.
>> Note: Construction Set's dolly will additionally go beyond
>> the selected object (distance goes negative). Blender should
>> have that kind of dolly as well because it is most flexible
>> and usable.
>> (In CS, how the rotation goes after view goes beyond the object?)
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- Campbell

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