Difference between revisions of "Howto:Creating FlightGear Promo Videos"

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== Helpful Tips & Tricks ==
 
== Helpful Tips & Tricks ==
  
* It is recommended to record in full screen mode, this gets rid of any compositor double vertical synching effect, on Linux you simply disable the compositor(the implementation depends on your distro), while for Windows Vista and 7, just disable can disable the Aero theme, unfortunately for Windows 8 and above, the compositor cannot be disabled, the compositor runs as DWM.exe, and is re-instanced by the winlogon.exe manager whenever you try to close it, two alternatives exists is to run the classic shell, or you follow this guide line for a hack to disable DWM.exe temporarily(this will break some effects including the Window Manager). [http://superuser.com/questions/581673/disable-desktop-composition-in-windows-8-force-it disable-desktop-composition-in-windows-8-force-it]
+
* It is recommended to record in full screen mode, this gets rid of any compositor double vertical synching effect, on Linux you simply disable the compositor(the implementation depends on your distro), while for Windows Vista and 7, just disable the Aero theme, unfortunately for Windows 8 and above, the compositor cannot be disabled, the compositor runs as DWM.exe, and is re-instanced by the winlogon.exe manager whenever you try to close it, two alternatives exists is to run the classic shell, or you follow this guideline for a hack to disable DWM.exe temporarily(this will break some effects including the Window Manager). [http://superuser.com/questions/581673/disable-desktop-composition-in-windows-8-force-it disable-desktop-composition-in-windows-8-force-it]
  
  
* If you have a powerful machine, it is best to disable VSync(as it adjusts frame-spacing to a static value), if you are worried about maintaining a constant FPS for recording, just impose an internal frame cap in Flightgear by going to View > Rendering Options > Throttle Framerate. From my experience most OpenGL screen recorders impose an FPS limit anyway(unlike some DirectX recorders).
+
* If you have a powerful machine, it is best to disable VSync(as it adjusts frame-spacing to a minumum static value), if you are worried about maintaining a constant FPS for recording, just impose an internal frame cap in Flightgear by going to View > Rendering Options > Throttle Framerate. From my experience most OpenGL screen recorders impose an FPS limit anyway(unlike some DirectX recorders).
  
 
     ''Linux'': export the env variable "vblank_mode=0" on the same session you're running FG from.
 
     ''Linux'': export the env variable "vblank_mode=0" on the same session you're running FG from.
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* It is better to write to a separate HDD then the one you're running Flightgear on, as not to overwhelm your drive's IO controller.
+
* It is better to write to a separate HDD then the one you're running Flightgear from, as not to overwhelm your drive's IO controller.
  
  
* Avoid live encoding, as that would bog down the CPU while recording and consume lots of memory, always perform transmuxing without re-encoding if you want to edit, i recommend ffmpeg if you know how to operate it.
+
* Avoid live encoding, as that would bog down the CPU while recording and consume lots of memory, always perform transmuxing without re-encoding if you want to edit, i recommend ffmpeg if you know how to operate it, or MP4Box(GUI MP4 stream extractor for Windows).
  
 
== Finally ==
 
== Finally ==

Revision as of 20:41, 14 November 2015

Contributors: LukeaFG, Osjcag, Trez, connect, sa7k

Examples

Illustration of using a recent model GPU, good memory, and full settings while using a IR point tracker to impress the FSX guys :)

We recommend two different styles. The first video is showing you the detailed features of FlightGear Version 3.2.


The second video shows you how to present a FlightGear Version 2.10 video in the form of a slideshow.

Content

Use the Next Changelog for the list of changes or updates to include in the video. Probably, promo videos should focus on feaures to be found in the release, not on optional aircraft, addons etc. (see screenshot guidelines).

Style / Appearance and Branding

Place the FlightGear logo in some corner of the video and a link to the official website, i.e. flightgear.org

I would probably make sure to add links (or even watermarks) to each video, so that "flightgear.org" is made very prominent - to make it more difficult for scammers to reuse such promos for their own purposes ... For the same reasons, we may want to use the terms "free" and "open source" to ensure that people cannot easily reuse the promo videos to sell rebranded versions of FG. And maybe each review you should have a date added, so that people know just how recent the promo video really is ? A semi transparent FlightGear logo in the corner of the video might help

Audio / Background Music

Use royalty free audio or ask for full permission, FlightGear is opensource your video should follow that as much as possible. Look up royalty free on google, there are many websites that feature royalty free music. MachinimaSound is a great site for royalty free music and it's made for content that features gaming.

Using the aircraft sounds also showcases FlightGear well.

Localization

We may still want to provide an option to localize/translate videos (I understand that's made possible for YT videos), to give even wider exposure to FG. I think YT videos can have text comments and audio translated for different audiences. Also, using the changelog to create a promo is definitely a very good idea! You can create an interactive transcript for YouTube in a .txt file in a different language which would be helpful.

Performance

Only record video if FlightGear's framerate is high (this prevents jerky motions... Example of what I mean here: http://www.youtube.com/watch?v=JW7ZrGpSCbk)

A good way to get better framerate is to slow the video down in the flightgear replay and speeding it up in the editor.

Format & Codecs

  • Container: mp4
  • Codec: h264 (for optimal quality)
  • Resolution : 720p or 1080p (progressive)
  • Framerate: 24 - 30FPS (30 is the maximum YouTube supports)
  • Aspect ratio: 16 ; 9 (any other ratios will have unwanted back bars in your video)

You should also consider encoding with webm, which is google's royalty free codec if you are just planning to upload to youtube.

Video Recording Software

Programs to record your video:

  • CamStudio (free) - Windows
  • Quicktime (free) - Mac | only captures the full screen
  • VLC (free, multi-platform)
  • Fraps (paid) - Windows | works great if configured right
  • Action! (paid) - Windows | one of the best, has openGL support, can utilize multi-threading.
  • recordmydesktop - Linux
  • NVidia ShadowPlay (free) - Windows | Requires higher end NVidia card with recent drivers. Works great with minimal frame rate hit but must be used in desktop capture mode with OpenGL.
  • glc-capture (free) - Linux | A little more difficult to use, but it forms a layer inbetween FlightGear and your graphics card for the fastest way of capturing video. Also files become very big, so make sure your disk is big enough.

MAGIX is a set of Applications that handles video and audio editing, it also has a recording software.

To install record my desktop on Ubuntu(and it's variations), Linux Mint and Debian open the terminal and type: sudo apt-get install gtk-recordmydesktop

Video Editing Software

Programs to edit your video:

  • VirtualDub (free) - Windows
  • IMovie (free) - Mac | IMovie comes with every mac for free it costs 15 dollars to upgrade to the latest version though
  • Adobe Premiere Pro (paid) - Mac & Windows
  • Sony Vegas Pro (paid) - Windows
  • Kdenlive (Free) - Linux,Mac |Great editor with many functions

Helpful Tips & Tricks

  • It is recommended to record in full screen mode, this gets rid of any compositor double vertical synching effect, on Linux you simply disable the compositor(the implementation depends on your distro), while for Windows Vista and 7, just disable the Aero theme, unfortunately for Windows 8 and above, the compositor cannot be disabled, the compositor runs as DWM.exe, and is re-instanced by the winlogon.exe manager whenever you try to close it, two alternatives exists is to run the classic shell, or you follow this guideline for a hack to disable DWM.exe temporarily(this will break some effects including the Window Manager). disable-desktop-composition-in-windows-8-force-it


  • If you have a powerful machine, it is best to disable VSync(as it adjusts frame-spacing to a minumum static value), if you are worried about maintaining a constant FPS for recording, just impose an internal frame cap in Flightgear by going to View > Rendering Options > Throttle Framerate. From my experience most OpenGL screen recorders impose an FPS limit anyway(unlike some DirectX recorders).
   Linux: export the env variable "vblank_mode=0" on the same session you're running FG from.
   Windows w/ Nvidia GPU: Nvidia Control Panel > Manage 3D settings > Program Settings.


  • It is better to write to a separate HDD then the one you're running Flightgear from, as not to overwhelm your drive's IO controller.


  • Avoid live encoding, as that would bog down the CPU while recording and consume lots of memory, always perform transmuxing without re-encoding if you want to edit, i recommend ffmpeg if you know how to operate it, or MP4Box(GUI MP4 stream extractor for Windows).

Finally

Everything else is up to the editor... ;)