Background Image in 3D view increases memory usage. Crashes Blender #47577

New Issue

david mcsween · 2016-02-26T06:03:23+01:00

david mcsween commented

2016-02-26 06:03:23 +01:00

System Information
Operating system and graphics card
Win 7 SP1 i5 8GB AMD Radeon HD7470
Blender Version
Broken: 2.4 - 2.76
Worked: ??

Short description of error
Background Image movie clip still image eats memory fast
eventually crashes Blender

Exact steps for others to reproduce the error
Place a movie clip (still image) or jpeg in the Background Image window of 3D view.
Scrub timeline back and forward
watch memory usage at top add up to GB quickly{F285870}

**System Information** Operating system and graphics card Win 7 SP1 i5 8GB AMD Radeon HD7470 **Blender Version** Broken: 2.4 - 2.76 Worked: ?? **Short description of error** Background Image movie clip still image eats memory fast eventually crashes Blender **Exact steps for others to reproduce the error** Place a movie clip (still image) or jpeg in the Background Image window of 3D view. Scrub timeline back and forward watch memory usage at top add up to GB quickly{[F285870](https://archive.blender.org/developer/F285870/test_mem.blend)}

david mcsween commented

2016-02-26 06:03:23 +01:00

Changed status to: 'Open'

david mcsween commented

2016-02-26 06:03:23 +01:00

Added subscriber: @davidmcsween

david mcsween commented

2016-02-26 06:08:31 +01:00

Have just realized that the Movie Clip still image didn't "pack".
So the still image that is packed needs to be exported and loaded as a Movie Clip in the MCE.
Then you load it as a Movie Clip (still image) in the Background image.

Have just realized that the Movie Clip still image didn't "pack". So the still image that is packed needs to be exported and loaded as a Movie Clip in the MCE. Then you load it as a Movie Clip (still image) in the Background image.

david mcsween commented

2016-02-26 06:45:19 +01:00

It seems that the background Image is not the problem.

I experience the same memory issue when scrubbing a still image (not a movie or sequence) in the MCE.
The large jpeg I am using seems to persist for for than one frame. Other images (.png) do not, they only appear for 1 frame.
This doesn't happen with smaller jpegs or other image formats.

In Footage Information of MCE "frame: -/1" still appears but the image continues to prefetch into memory even when it should be unavailable.

Jpeg images over 2.5mb seem to fail consistently.

It seems that the background Image is not the problem. I experience the same memory issue when scrubbing a still image (not a movie or sequence) in the MCE. The large jpeg I am using seems to persist for for than one frame. Other images (.png) do not, they only appear for 1 frame. This doesn't happen with smaller jpegs or other image formats. In Footage Information of MCE "frame: -/1" still appears but the image continues to prefetch into memory even when it should be unavailable. Jpeg images *over* 2.5mb seem to fail consistently.

david mcsween commented

2016-02-26 07:52:12 +01:00

Other people have tried to replicate the effect but cannot get a still to load more than 1 frame. I have downloaded a new build today and still experience the MCE problem. Building moer frames than required.