blind

suckless command-line video editing utility
git clone git://git.suckless.org/blind
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blind-cross-product.1 (896B)

      1 .TH BLIND-CROSS-PRODUCT 1 blind
      2 .SH NAME
      3 blind-cross-product - Calculate the cross product of colours in a video
      4 .SH SYNOPSIS
      5 .B blind-cross-product
      6 .I right-hand-stream
      7 .SH DESCRIPTION
      8 .B blind-cross-product
      9 reads left-hand operands from stdin, and right-hand
     10 operands from
     11 .IR right-hand-stream ,
     12 and calculates the cross product of the colours.
     13 The values of the alpha channels multiple with each
     14 others with regular scalar-scalar multiplication.
     15 .P
     16 If stdin is longer than
     17 .IR right-hand-stream ,
     18 the remainder of stdin is printed without any changes.
     19 If stdin is shorter than
     20 .IR right-hand-stream ,
     21 the remainder of
     22 .I right-hand-stream
     23 is ignored but may be partially read.
     24 .SH SEE ALSO
     25 .BR blind (7),
     26 .BR blind-arithm (1),
     27 .BR blind-norm (1),
     28 .BR blind-dot-product (1),
     29 .BR blind-quaternion-product (1),
     30 .BR blind-vector-projection (1)
     31 .SH AUTHORS
     32 Mattias Andrée
     33 .RI < maandree@kth.se >