Important memory usage with video textures #32795

New Issue

Pascal Schmidt · 2012-10-06T15:54:48+02:00

Pascal Schmidt commented

2012-10-06 15:54:48 +02:00

%%%Hi all,

I discovered that if you use a video as a texture for a plane, the memory usage will increase as the render of the final movie progresses; leading to a total consumption of the system RAM, and eventually a crash.
It appeared with 2.64 (the memory usage for the same render stayed very low on 2.63a).

Steps to reproduce this:

In a new project, texture a plan with a high quality video (Tears of steal 1080p for example) and click "Match Movie Length"
Set the number of frames of the project to 1000,
Launch the the render of the final project (even in low quality with Internal),
Look at the memory usage.

Same problem with animation preview.

OS: Debian testing 64b
3D card: Nvidia gtx550 Ti
Problem exists in: Blender 2.64 (r51026) (64bits) and Blender 2.64RC2 (r50890) (64bits) but not in 2.63a (r46461) (64bits)

Thanks

Oygron

Attached, a .blend (without the video) to reproduce the problem%%%

%%%Hi all, I discovered that if you use a video as a texture for a plane, the memory usage will increase as the render of the final movie progresses; leading to a total consumption of the system RAM, and eventually a crash. It appeared with 2.64 (the memory usage for the same render stayed very low on 2.63a). Steps to reproduce this: - In a new project, texture a plan with a high quality video (Tears of steal 1080p for example) and click "Match Movie Length" - Set the number of frames of the project to 1000, - Launch the the render of the final project (even in low quality with Internal), - Look at the memory usage. Same problem with animation preview. OS: Debian testing 64b 3D card: Nvidia gtx550 Ti Problem exists in: Blender 2.64 (r51026) (64bits) and Blender 2.64RC2 (r50890) (64bits) but not in 2.63a (r46461) (64bits) Thanks Oygron Attached, a .blend (without the video) to reproduce the problem%%%

Pascal Schmidt commented

2012-10-06 15:54:48 +02:00

Changed status to: 'Open'

Sergey Sharybin commented

2012-10-08 11:42:29 +02:00

%%%Using Debian Testing 64bit as well and can not see memory issues here. Was using tears_of_steel_1080p.mkv

Couple f questions:

Are you using builds form blender.org or some other source of builds?
Does it happen with all videos or only with particular ones?%%%

%%%Using Debian Testing 64bit as well and can not see memory issues here. Was using tears_of_steel_1080p.mkv Couple f questions: - Are you using builds form blender.org or some other source of builds? - Does it happen with all videos or only with particular ones?%%%

Pascal Schmidt commented

2012-10-08 12:00:20 +02:00

%%%Hi,

I'm using builds from blender.org, and tears_of_steel_1080p.mkv too.
It seems to happen with every video I tested, the higher the quality of the video is, the quicker the memory usage increases with the number of rendered frames.

After 1000 rendered frames, using Tears of Steels, my memory usage of Blender (2.64) was 2Gb. After 3000 rendered frames, Blender used my whole RAM (8Gb) and my system began to swap.
With blender 2.63a, it was still at around 200Mb.

I hope these pieces of information will help.%%%

%%%Hi, I'm using builds from blender.org, and tears_of_steel_1080p.mkv too. It seems to happen with every video I tested, the higher the quality of the video is, the quicker the memory usage increases with the number of rendered frames. After 1000 rendered frames, using Tears of Steels, my memory usage of Blender (2.64) was 2Gb. After 3000 rendered frames, Blender used my whole RAM (8Gb) and my system began to swap. With blender 2.63a, it was still at around 200Mb. I hope these pieces of information will help.%%%

Sergey Sharybin commented

2012-10-08 12:39:45 +02:00

%%%Could you please do one more test: load factory settings and see if it helps.%%%

Pascal Schmidt commented

2012-10-08 13:23:30 +02:00

%%%Same problem after reseting to factory settings.

While looking if my bug hadn't already been reported, I found this:
http://projects.blender.org/tracker/?group_id=9&atid=498&func=detail&aid=32465
It seems very close to me, but not exactly the same. Couldn't there be a related cause, video caching enabled by mistake for several type of objects, and then disabled only for nodes and not for textures?
It is probably a wrong way, but as it reminded me my problem...

Thanks%%%

%%%Same problem after reseting to factory settings. While looking if my bug hadn't already been reported, I found this: http://projects.blender.org/tracker/?group_id=9&atid=498&func=detail&aid=32465 It seems very close to me, but not exactly the same. Couldn't there be a related cause, video caching enabled by mistake for several type of objects, and then disabled only for nodes and not for textures? It is probably a wrong way, but as it reminded me my problem... Thanks%%%

Sergey Sharybin commented

2012-10-08 13:43:41 +02:00

%%%No, you can not enable cache for some particular datablock only. It's also quite strange why the issue isn't reproduceable here on the same debian testing, the same release build. Would test on home desktop as well, maybe i'll have more luck there.%%%

Pascal Schmidt commented

2012-10-08 14:43:35 +02:00

%%%Some more puzzling facts:

The problem cannot be reproduced on my Windows,
On Linux, my system monitor shows the memory increase only on "cache" and not on "programs", but "top" shows both RES and SHR memory increase for the Blender process,
The memory stays occupied after the end of the render and increases again if I begin the same render again without closing Blender,
The problem does not exist if I set the video rendering mode to "png" but is there for each other video mode (avi jpg, mpeg, h264, xvid).
It seems to tell me that it is a problem with my video encoder, but why does it appear only when videos are included? Why not on the 2.63? Why not on your computer?
My mind is blowing...

Thanks for your explanations and the time spent on this.%%%

%%%Some more puzzling facts: - The problem cannot be reproduced on my Windows, - On Linux, my system monitor shows the memory increase only on "cache" and not on "programs", but "top" shows both RES and SHR memory increase for the Blender process, - The memory stays occupied after the end of the render and increases again if I begin the same render again without closing Blender, - The problem does not exist if I set the video rendering mode to "png" but is there for each other video mode (avi jpg, mpeg, h264, xvid). It seems to tell me that it is a problem with my video encoder, but why does it appear only when videos are included? Why not on the 2.63? Why not on your computer? My mind is blowing... Thanks for your explanations and the time spent on this.%%%

Sergey Sharybin commented

2012-10-08 14:48:40 +02:00

%%%Blender from official site is using static linking against almost all libraries, so doubt issue is in your video encoding libs.

Could confirm the issue now with rendering to h264 video. Now i can look into it :)%%%

%%%Blender from official site is using static linking against almost all libraries, so doubt issue is in your video encoding libs. Could confirm the issue now with rendering to h264 video. Now i can look into it :)%%%

Sergey Sharybin commented

2012-10-08 15:00:19 +02:00

%%%Fixed the issue in svn rev51184. Fresh builds should arrive to http://builder.blender.org/download/ soon. Please report back here if the issue will still exist for you.%%%

Sergey Sharybin commented

2012-10-08 15:00:19 +02:00

Changed status from 'Open' to: 'Resolved'

Sergey Sharybin closed this issue

2012-10-08 15:00:19 +02:00

Pascal Schmidt commented

2012-10-08 15:20:25 +02:00

%%%No more problem on my side!

Thanks a lot, you're great!%%%

%%%No more problem on my side! Thanks a lot, you're great!%%%

Sergey Sharybin commented

2012-10-08 15:26:50 +02:00

%%%Cool to hear this! Thanks for the report btw :)%%%

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Important memory usage with video textures #32795