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Animation is a magical process whereby seemingly unending efforts eventually combine to make a movie. | Animation is a magical process whereby seemingly unending efforts eventually combine to make a movie. | ||
| + | |||
| + | == Artists == | ||
| + | |||
| + | * [https://www.davidrevoy.com/categorie3/tutorials-brushes-extras David Revoy] | ||
== Softwares == | == Softwares == | ||
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Of course we focus on [[Linux]] softwares: | Of course we focus on [[Linux]] softwares: | ||
| − | # Pencil2d - best as a starting point, frame by frame, both bitmaps & basic vectors. | + | # [[Pencil2d]] - best as a starting point, frame by frame, both bitmaps & basic vectors. |
| − | # Synfig - more technical and focused on vector animation by tweening. | + | # [[Synfig]] - more technical and focused on vector animation by tweening. |
| − | # Krita - for professional drawings (especially gifted artists). | + | # [[Krita]] - for professional drawings (especially gifted artists). |
# OpenToonz - in between the aboves and blender. | # OpenToonz - in between the aboves and blender. | ||
| − | # Blender - for professional users. | + | # [[Blender]] - for professional users. |
There are also some proprietary software, such as [https://www.toonboom.com/products/harmony Harmony] | There are also some proprietary software, such as [https://www.toonboom.com/products/harmony Harmony] | ||
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== Gif == | == Gif == | ||
| + | |||
| + | [https://ezgif.com/ ezgif.com] is a great online resource to optimize, resize, crop and overall edit gif (with some limitations on size, though). | ||
Gif files can be animated using ''gifsicle'' [http://www.lcdf.org/gifsicle/] | Gif files can be animated using ''gifsicle'' [http://www.lcdf.org/gifsicle/] | ||
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gifsicle --delay=10 --loop *.gif > anim.gif | gifsicle --delay=10 --loop *.gif > anim.gif | ||
| − | + | The listing is such that it [[normal-orders]] the files, which is usually what one wants to do. | |
| + | |||
| + | To convert from a movie to an animated gif: | ||
| + | |||
| + | <pre> | ||
| + | ffmpeg -i input.mp4 -r 15 -vf scale=512:-1 output.gif | ||
| + | </pre> | ||
| + | |||
| + | == PNG == | ||
| + | |||
| + | If there are few images, <tt>convert</tt> from ImageMagick can do the trick: | ||
convert -delay 10 -loop 0 $(ls -1 *.png | sort -V) animated.gif | convert -delay 10 -loop 0 $(ls -1 *.png | sort -V) animated.gif | ||
| − | + | For more ambitious exports, use ffmpeg: (-r 20 is the repetition rate) | |
| − | + | <pre> | |
| + | ffmpeg -f image2 -r 20 -i 0%05d.png -vcodec h264 -crf 0 -y output.mp4 | ||
| + | </pre> | ||
== Movies == | == Movies == | ||
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avconv -f image2 -r 30 -i %03d.png -vcodec qtrle -pix_fmt rgb24 -t 15 qtrle-30fps-rgb.mov | avconv -f image2 -r 30 -i %03d.png -vcodec qtrle -pix_fmt rgb24 -t 15 qtrle-30fps-rgb.mov | ||
| + | |||
| + | == Tools == | ||
| + | |||
| + | * Mental Canvas: drawing in 3D. | ||
Contents |
Animation is a magical process whereby seemingly unending efforts eventually combine to make a movie.
Of course we focus on Linux softwares:
There are also some proprietary software, such as Harmony
The basic idea of animation is very simple, though: alternate images. If it's fast enough, the brain will interpolate a continuous evolution from one to the other. So the simplest possible animation is just to generate frames and assemble them together.
For autocropping:
for i in `ls *jpg`; do convert -trim $i out_$i; done
But if the size is not the same for all images, the encoding could fail, in this case, force the cropping:
for i in `ls *jpg`; do convert $i -crop '990x870+5+35' out_$i; mv -f out_$i $i; done
ezgif.com is a great online resource to optimize, resize, crop and overall edit gif (with some limitations on size, though).
Gif files can be animated using gifsicle [1]
gifsicle --delay=10 --loop *.gif > anim.gif
The listing is such that it normal-orders the files, which is usually what one wants to do.
To convert from a movie to an animated gif:
ffmpeg -i input.mp4 -r 15 -vf scale=512:-1 output.gif
If there are few images, convert from ImageMagick can do the trick:
convert -delay 10 -loop 0 $(ls -1 *.png | sort -V) animated.gif
For more ambitious exports, use ffmpeg: (-r 20 is the repetition rate)
ffmpeg -f image2 -r 20 -i 0%05d.png -vcodec h264 -crf 0 -y output.mp4
mpeg can be generated with a command like:
mencoder "mf://*.jpg" -mf fps=10 -ovc lavc -o ./dest.avi
with 10 frames per second.
avconv is also popular. To do lossless compression, you may try:
avconv -f image2 -r 30 -i %03d.png -vcodec qtrle -pix_fmt rgb24 -t 15 qtrle-30fps-rgb.mov