Playback set start/end operators can set rendering range fields to negative frames #81380
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Reference: blender/blender#81380
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System Information
Operating system: Darwin-19.3.0-x86_64-i386-64bit 64 Bits
Graphics card: AMD Radeon Pro 580 OpenGL Engine ATI Technologies Inc. 4.1 ATI-3.5.5
Blender Version
Broken: version: 2.91.0 Alpha, branch: master, commit date: 2020-09-26 20:04, hash:
8c81b3fb8b
Short description of error
This is not a bug
This is a bug
Exact steps for others to reproduce the error
Added subscriber: @info-27
Added subscriber: @lichtwerk
Changed status from 'Needs Triage' to: 'Confirmed'
Can confirm some sort of inconsistency.
I assume though that not allowing negative frames for scene render is actually the right thing to do, see the comment in
rna_Scene_start_frame_set
:On the other hand, there is the
Allow Negative Frames
option, introduced in21a2350248
.This commit claims:
And the documentation https://docs.blender.org/manual/en/dev/editors/preferences/animation.html#timeline says
I am reading this as "setting current frame to a negative value should be allowed, setting the preview range to a negative value should be allowed, however setting the scene render startframe/endframe should never be allowed.
But as we can see there are a couple of places where we can end up with negative framenumbers for scene render.
Therefore, this looks like a bug.
(The whole thing might also be considered designed schizophrenia :), but for now lets make sure we dont end up with negative in scene render.)
Related:
Playback/rendering range fields can't be set to negative framesto Playback set start/end operators can set rendering range fields to negative framesI have change the task description to reflect what is considered a bug and what isnt.
This issue was referenced by
ca38bce46a
Changed status from 'Confirmed' to: 'Resolved'