Zooming not smooth

[vsthem]

I have a video I need to put together, and writing music to it, so I thought I'd try to use the reaper video editor for the first time. I love everything I've poked around with, except for when I tried to zoom in on a still image. The result was not a smooth zoom in, but one with lots of micro stops and starts.

Google lead me to some older threads complaining about this problem, but I wanted to check in here and see if there were any workarounds that have come about, or if there was any hope that the devs might work on this. If this was fixed, I could probably switch to reaper for all my video stuff, which would be amazing.

Thanks all!

[papagirafe]

Originally Posted by vsthem

I have a video I need to put together, and writing music to it, so I thought I'd try to use the reaper video editor for the first time. I love everything I've poked around with, except for when I tried to zoom in on a still image. The result was not a smooth zoom in, but one with lots of micro stops and starts.

Google lead me to some older threads complaining about this problem, but I wanted to check in here and see if there were any workarounds that have come about, or if there was any hope that the devs might work on this. If this was fixed, I could probably switch to reaper for all my video stuff, which would be amazing.

Thanks all!

I came accross that problem in the past and it´s related to rounding issues with the gfx_blit() function and there is a fix for that. Which preset(s) are you using?

[vsthem]

Basic Helpers: Track opacity/zoom/pan

Are there better ones to use for this function?

[papagirafe]

Originally Posted by vsthem

Basic Helpers: Track opacity/zoom/pan

Are there better ones to use for this function?

Yes and no, it depends heavily on the context of use. Assuming that your are not rotating the image, here is a patched version of the preset. Let me know if this works for you. Just copy and paste this code over the existing one (and save! ctrl-s).

// Track opacity/zoom/pan
//  **** patched for "smoothness"
//@param1:opacity 'opacity' 1
//@param2:zoom 'zoom' 0 -10 10 0
//@param3:xoffs 'X offset' 0 -1 1 0
//@param4:yoffs 'Y offset' 0 -1 1 0
//@param5:rotate 'rotate' 0 -360 360 0 1
//@param7:filter 'filter' 0 0 1 0.5 1
//@param8:clear 'clear bg' 1 0 1 0.5 1
//@param9:force_w 'force width' 0 0 2600 1024 2
//@param10:force_h 'force height' 0 0 2600 1024 2
//@param11:paspect 'preserve aspect' 1 0 1 0.5 1

function round(v)((v+0.5)|0);
function round2(v)(((v+1)>>1)<<1);

(bg_img=input_ismaster() ? -2 : input_track(0)) ? (
  force_w &= -2; force_h &= -2;
  force_w && !force_h ? force_h = (force_w * project_h / project_w)&-2;
  force_h && !force_w ? force_w = (force_h * project_w / project_h)&-2;
  force_w>0 && force_h>0 ? ( project_w=force_w; project_h=force_h );

  w = opacity < 0.01 ? 0 : opacity > 0.99 ? 1 : opacity;
  gfx_a2=0;
  gfx_blit((w < 1 || clear < 0.5) ? bg_img : -2,1);

  w > 0 ? (
    gfx_mode = filter>0.5 ? 256 : 0;
    gfx_a=w;
    z = 10^(zoom/10);
    dw = (project_w*z)&-2;
    dh = (project_h*z)&-2;
    x = (project_w - dw + xoffs*(project_w+dw))*.5;
    y = (project_h - dh + yoffs*(project_h+dh))*.5;
                                                   // *** patch is here ***
    rotate == 0 ? gfx_blit(0,paspect, round(x),round(y),round2(dw),round2(dh)) : (
      input_info(0,srcw,srch);
      sc=2.0; sc2=sc*.5 - 0.5;
      gfx_rotoblit(0,rotate*$pi/180,(x-dw*sc2)|0,(y-dh*sc2)|0,dw*sc,dh*sc, -srcw*sc2, -srch*sc2, srcw*sc, srch*sc);
    );
  );
);

[vsthem]

So much better! Amazing! Thank you!

[Winfield]

I could of course copy paste the script above, but am wondering how many of my other presets that should be updated.

Are these (or any) presets updated with Reaper?