Leo:Blender

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Revision as of 01:25, 28 March 2016 by Leo (talk | contribs) (Sequencer)
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Blender is a great tool for video sequencing among other things.

This is a wiki of my notes.

Video tutorials


My notes

Initial Setup

Properties Section

  • Start Blender
  • Select View layout to Video Editing
  • If you see graph Editor, replace it with Properties window (with "drop-up button")

Properties

Dimensions

  • Change the preset to your format, e.g. HDTV 720
  • Check the Resolution
  • Check the Frame rate. E..g. 30fps for youtube (should match the source video).

Output

  • Check the location of the output file
  • Set File format (e.g. H.264 or Xvid)
  • Select RGB (for color)

Encoding

  • Set preset to the same video format
  • Bitrate: 6000 is ok
  • Select Audio Codec (e.g. AAC or MP3)

Timeline Section

Playback menu:

  • + Audio Scrubbing
  • + AV Sync
  • + Frame dropping

Save as defaults

  • Menu -> File -> Save Startup File

System settings

Open: Menu -> File -> User Preferences -> System

  • Sequencer / Clip Editor:
    • Prefetch frames: 500 (later versions may not have this setting any more)
    • Memory Cache limit - set to reasonable memory size in gigs: e.g. 10G out of 16G total RAM

Sequencer

  • Right click selects a stream
  • Home key zooms to the whole (project) view
  • S - sets start frame. E - sets end frame
  • Box select: Press B, then draw a rectangle over the target strips
  • Grab: G - grabs the selection and can move to different channel or time point
    • G, X moves only in X azes. Y restricts to Y axes.

Add media:

  • Add media: Sequencer Menu -> Add -> Movie...
    • Make sure the frame rate matches.
    • To match the size for the whole movie, select the strip, then go to Sequencer-Menu -> Strip -> Set Render Size

Cuts:

  • Soft cut: K (menu-strip-cut). Can move handles left-right to change the cut boundaries.
  • Hard cut: Shift+K

combining resolutions:

  • Select the largest resolution strip for the final resolution
  • The other strip: in properties check "Image offset" to keep the aspect ratio.

Meta Strips

Make meta strip:

  1. Select multiple target strips (with box select)
  2. [Ctrl+G] Sequencer-Menu -> Strip -> Make Meta Strip