[Bf-blender-cvs] CVS commit: blender/source/blender/blenkernel/intern node_composite.c

[Matt Ebb]

broken (Matt Ebb) 2006/12/30 15:47:03 CET

  Modified files:
    blender/source/blender/blenkernel/intern node_composite.c 
  
  Log:
  == Compositor ==
  * Displace Node
  
  Displaces an input image's pixels based on an input vector mask. This can be
  useful for a lot of things, like hot air distortion, quick-and-dirty compo
  refraction, compositing live footage behind refracting objects, and more!
  
  The amount of displacement in the X and Y directions is determined by:
  * The value of the mask's channels
    - (red) channel 1's value determines displacement along the positive or
    negative X axis
    - (green) channel 2's value determines displacement along the positive or
    negative Y axis
  
  If both the channel's values are equal (i.e. a greyscale image) the input
  image will be displaced equally in both X and Y directions, also according to:
  * The X scale and Y scale buttons
    - These act as multipliers to increase or decrease the strength of the
    displacement along their respective axes. They need to be set to non-zero
    values for the node to have any effect.
  
  Because of this, you can use the displace node in two ways, with a greyscale
  mask(easy to paint, or take from a procedural texture), or with a vector
  channel or RGB image, such as a normal pass, which will displace the pixels
  based on the normal direction.
  
  A quick practical example:
  http://mke3.net/blender/etc/displace-desert-h264.mov
  http://mke3.net/blender/etc/displace-desert.blend.zip
  
  And some techie examples:
  
  Using a greyscale mask
  http://mke3.net/blender/etc/displace-bw-h264.mov
  http://mke3.net/blender/etc/displace-bw.png
  
  Using a vector mask
  http://mke3.net/blender/etc/displace-vec-h264.mov
  http://mke3.net/blender/etc/displace-vec.png
  
  Revision  Changes    Path
  1.87      +130 -1    blender/source/blender/blenkernel/intern/node_composite.c
    <http://projects.blender.org/viewcvs/viewcvs.cgi/blender/source/blender/blenkernel/intern/node_composite.c.diff?r1=1.86&r2=1.87&cvsroot=bf-blender>