On Fri, Jun 3, 2022 at 5:05 PM Michael Koch <astroelectro...@t-online.de> wrote:
> Hello, > > I'd like to ask if the number of variables in expressions could be > increased from 10 to 25 please. I mean the st() and ld() functions. I'm > just programming a realtime wormhole simulation and the limitation to 10 > variables is becoming nasty. I did already begin to re-use the same > variables for different things, but that makes debugging complicated. It > would be so much easier to have more variables and use each one only for > one thing. > What you see below is only a small part of the code. > Why you doing that way, this is the most inefficient way to do it. > > Thanks, > Michael > > > ffmpeg -f lavfi -i nullsrc=size=%OUT_W%x%OUT_H% -vf > format=pix_fmts=gray16le,geq='^ > st(0,PI/360*%OUT_H_FOV%*((2*X+1)/%OUT_W%-1));^ > st(1,PI/360*%OUT_V_FOV%*((2*Y+1)/%OUT_H%-1));^ > st(4,cos(ld(1))*sin(ld(0)));^ > st(5,sin(ld(1)));^ > st(6,cos(ld(1))*cos(ld(0)));^ > st(7,atan2(ld(5),ld(4)));^ > st(8,acos(ld(6)));^ > st(9,if(lte(ld(8),%RS%/180*PI),%OUT_W%,0));^ > > st(8,if(gt(ld(8),%RS%/180*PI),ld(8)-(2*%RS%/180*PI/(ld(8)-%RS%/180*PI)),0));^ > st(4,sin(ld(8))*cos(ld(7)));^ > st(5,sin(ld(8))*sin(ld(7)));^ > st(6,cos(ld(8)));^ > st(7,atan2(ld(4),ld(6)));^ > st(8,asin(ld(5)));^ > ld(9)+0.5*%IN_W%*(1+ld(7)/%IN_H_FOV%*360/PI)' -frames 1 -y xmap.pgm > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". > _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".