Yes, it is very slow. No music either. I get this error:
'cvlc' is not recognized as an internal or external command,
operable program or batch file.
After the BBQ animation, everything is normal speed.
Got two of my own:
f "angle=pi;i(sqrt((x-w/2)^2+(y-h/2)^2),sqrt((x-w/2)^2+(y-h/2)^2),z,c,1,1)"
f "angle=0;i(x*cos(angle)+y*sin(angle),-x*sin(angle)+y*cos(angle),z,c,1,2)"
The first makes circular textures out of images. The second’s some generic rotation thing that one can use to distort images.
Here is a bash/gmic/ffmpeg combo move:
- From a dir with images
capture000000.jpg…capture000309.jpg
cp capture000000.jpg out000000.jpg ; prev=0 ; previous=0 ; counter=1 ; current=1 ; until [ $counter -gt 309 ] ; do current=$(echo 0000000$counter|tail -c 7) && prev=$((counter-1)) && previous=$(echo 0000000$prev|tail -c 7) && previous=$(echo 0000000$prev|tail -c 7) && gmic capture$(echo $current).jpg out$(echo $previous).jpg blend lighten -o out$(echo $current).jpg && ((counter++)) ; done && ffmpeg -framerate 48 -i out%06d.jpg -vcodec libx264 -s 1280x720 -preset slow -crf 5 -pix_fmt yuv420p ~/Desktop/startrails1d.mkv
Well that was fun, but I imagine this can be done with a simpler gmic command.
2 Likes
Nice. 
Yes, gmic could totally do what you did with bash or, in the case of Windows, cmd.
I knew it! Alls I’m doing with bash is a two element accumulating sliding window, and making a 48 fps 720p mkv in ffmpeg.
gmic lights.jpg tic r2dx 750%,2 r2dx 7%,1 r2dx 525,1 chroma_afre .6 autoindex 16,1 toc n 0,255 round o lights.png
I only used resize. chroma_afre isn’t important. I just wanted to match the saturation with @Reptorian’s. With some more tweaking and adjustments, I am sure that @Reptorian can improve his filter.
Resurrecting this thread, with a new “surprise” one-liner I just found tonight:
$ gmic v - chromeball64x64 255,20,0 r2dx. 48 s c,-3 600,600,1,3,"(y*[0,20,100]+(h-y)*[200,100,200])/h" .x9 eval "S = crop(#0); A = crop(#1); for (t = f = 0, 1, t+=0.02, draw(#2+f,S,[268-15*[16*(sin(t)^3),13*cos(t)-5*cos(2*t)-2*cos(3*t)-cos(4*t)],0,0],48,48,1,3,1,A,255); ext('w[',2+f,'] wait 20'); (++f)%=10)"
Do you succeed in running it ? (tested with bash only, I hope this works on the Windows console too!).
I just see an animation with a heart in it.
Isn’t that really cool ? 
3 Likes
Had a closer look at the balls. It does not look like that on my end. I might do a bug report later this week.
Yes, however, there are 2 issues. 
1 The GIF in your post isn’t a complete loop. A complete loop brings the head of the ball snake around to go from nothing to a complete heart, which I think is the cool part. 
2 The movement of the head ball at the cusps isn’t natural, causing a bouncy effect as it transitions. The reason is it doesn’t go underneath the tail end, breaking the illusion.
PS One more thing I noticed was that when I close the window the gmic interpreter doesn’t end. I have to abort using CTRL+C.
Nice! Worked fine in G’MIC 2.5.3 in Sabayon.
Here’s my one liner
channels 0 f "int(((($5==1?($4?($4==1?((x|int($1))+(y|int($2))):(xor(x,int($1))+xor(y,int($2)))):((x&int($1))+(y&int($2)))):($4?($4==1?((-x|int($1))+(-y|int($2))):(xor(-x,int($1))+xor(-y,int($2)))):((-x&int($1))+(-y&int($2)))))/(int($3)*2))-int(($5==1?($4?($4==1?((x|int($1))+(y|int($2))):(xor(x,int($1))+xor(y,int($2)))):((x&int($1))+(y&int($2)))):($4?($4==1?((-x|int($1))+(-y|int($2))):(xor(-x,int($1))+xor(-y,int($2)))):((-x&int($1))+(-y&int($2)))))/(int($3)*2)))*($5==1?($4?($4==1?((x|int($1))+(y|int($2))):(xor(x,int($1))+xor(y,int($2)))):((x&int($1))+(y&int($2)))):($4?($4==1?((-x|int($1))+(-y|int($2))):(xor(-x,int($1))+xor(-y,int($2)))):((-x&int($1))+(-y&int($2))))))<int($3)?($5==1?($4?($4==1?((x|int($1))+(-y|int($2))):(xor(x,int($1))+xor(-y,int($2)))):((x&int($1))+(-y&int($2)))):($4?($4==1?((x|int($1))+(y|int($2))):(xor(x,int($1))+xor(y,int($2)))):((x&int($1))+(y&int($2))))):($5==1?($4?($4==1?((-x|int($1))+(y|int($2))):(xor(-x,int($1))+xor(y,int($2)))):((-x&int($1))+(y&int($2)))):($4?($4==1?((-x|int($1))+(-y|int($2))):(xor(-x,int($1))+xor(-y,int($2)))):((-x&int($1))+(-y&int($2)))))"
See what you get after doing % 256 or using it as coordinate map.
Not exactly a one-liner. I put it into a command and got:
gmic sample tiger rep_ {[u,u,u,u,u]} % {2^8}
The recommended variables are
$1 = [0,128]
$2 = [0,128]
$3 = [0,180]
$4= 0 for and, 1 for or, 2 for xor
$5= 0,1 are for different styles
Starting point would be 8,8,128,2,0
Here’s my example, also I call the command rep_binaltquadtex
1 Like
I’m just gonna share another one liner here -
f "begin(const dc=5;const kern=dc*2+1;);N=crop(x-dc,y-dc,0,c,kern,kern,1,1,1);if(i<200,i>avg(N)?max(N):min(N);,i);"
Based off this idea - Majority Color Effect (ymd:100726) - Plugins - Publishing ONLY! - paint.net Forum
Can’t say I was successful, but I got a interesting effect.
Yes. It’s kind of a mix between erode and dilate filter. I made another version which is a extended version of one of MadJik’s Paint.NET filter, but that would be offtopic since it’s not a one-liner anymore.