Record OGRE screen output

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koreos
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Record OGRE screen output

Post by koreos »

Is there any way to record OGRE window output as a video?
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c6burns
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Re: Record OGRE screen output

Post by c6burns »

RenderWindow inherits RenderTarget::writeContentsToFile and writeContentsToTimestampedFile:
http://www.ogre3d.org/docs/api/1.9/clas ... dc6e7d2c1d

So you can use that to create a series of images and assemble them into a video (eg. using ffmpeg). Or you could use something like fraps, which I assume works using a dx interceptor to write individual frames into a video for you.
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cybereality
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Re: Record OGRE screen output

Post by cybereality »

FRAPS is a pretty good option if you want to pay a few bucks.

Also I believe Nvidia and AMD offer free software that can screen capture full-screen games.
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syedhs
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Re: Record OGRE screen output

Post by syedhs »

Programmatically, I have done something similar and it can be done quite fast (FPS drop is unnoticable):-
1) First, blit the content into Ogre::PixelBox eg

Code: Select all

PixelBox* pb;
...
...
HardwarePixelBufferSharedPtr ptr = mVideoRTT->getBuffer();
ptr->blitToMemory(*pb);
2) And then use different thread to pickup this PixelBox, and write this bits (from PixelBox) into the corresponding file format (BMP is among the fastest). This bmp is saved as a sequence of files eg file001.bmp, file002.bmp,...

3) Once all frames are recorded, then use ffpmpeg with proper command line to record into video with preferred quality & format.
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