blind-linear-gradient.1 - blind - suckless command-line video editing utility
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blind-linear-gradient.1 (1584B)
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1 .TH BLIND-LINEAR-GRADIENT 1 blind
2 .SH NAME
3 blind-linear-gradient - Generate a video with a linear gradient
4 .SH SYNOPSIS
5 .B blind-linear-gradient
6 [-b]
7 -w
8 .I width
9 -h
10 .I height
11 .SH DESCRIPTION
12 .B blind-linear-gradient
13 prints a video with a linear gradient to stdout,
14 parameters for each from is read from each frame
15 in stdin. The gradient is stored in all channels
16 of the video.
17 .P
18 The video in stdin must contain exactly 2 pixels
19 per frame. The first pixel shall point to the
20 beginning of the gradient (where the value is 0)
21 and the second pixel shall point to the end of
22 the gradient (where the value is 1). In these
23 pixels, the value of the first channel specifies
24 the X-position and the value of the second
25 channel specifies Y-position, the other channels
26 are ignored.
27 .SH NOTES
28 Pixels before the beginning of the gradient have
29 negative values, and pixels after the end of the
30 gradient have values larger than 1.
31 .BR blind-*-wave (1)
32 commands can be used to put all values between
33 0 and 1.
34 .SH OPTIONS
35 .TP
36 .B -b
37 Create a bilinear gradient.
38 .TP
39 .BR -w " "\fIwidth\fP
40 The width of the video, in pixels.
41 .TP
42 .BR -h " "\fIheight\fP
43 The height of the video, in pixels.
44 .SH SEE ALSO
45 .BR blind (7),
46 .BR blind-from-text (7),
47 .BR blind-cone-gradient (1),
48 .BR blind-radial-gradient (1),
49 .BR blind-spiral-gradient (1),
50 .BR blind-square-gradient (1),
51 .BR blind-double-sine-wave (1),
52 .BR blind-round-wave (1),
53 .BR blind-sawtooth-wave (1),
54 .BR blind-sinc-wave (1),
55 .BR blind-sine-wave (1),
56 .BR blind-triangular-wave (1),
57 .BR blind-spectrum (1)
58 .SH AUTHORS
59 Mattias Andrée
60 .RI < maandree@kth.se >