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Install the skill (once)
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Install the Recharm video effects skill: download https://recharm-growth-staging.s3.us-east-2.amazonaws.com/website/downloads/recharm-video-effects.zip and unzip it into ~/.claude/skillsAsk for the effect
Add a dutch angle to input.mp4 Tilt in degrees, clockwise: 12 Second at which the tilt begins: 1.0
Several videos, several effects, one ask
Put your clips in the folder, mention them with @, and ask for everything at once. Claude runs one tested script after another on each clip, then joins them.
Add a dutch angle to @clip1.mp4, put a sale badge on @clip2.mp4, give @clip3.mp4 a VHS look, then join all three with crossfades.
Settings you can change
Ask Claude to change any of these, or edit them at the top of the command.
| Setting | Default | What it does |
|---|---|---|
ANGLE | 12 | Tilt in degrees, clockwise. A negative number leans the other way. |
START | 1.0 | Second at which the tilt begins. |
RAMP | 0.5 | Seconds to ease from level into the full tilt. |
Without the skill
Don’t want to install the skill? Paste this prompt into Claude Code and Claude writes the command itself.
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Give input.mp4 a Dutch angle: keep it level and unzoomed for the first 1 second, then rotate the whole frame clockwise about its center, easing smoothly (an S-curve) from 0 to 12 degrees between 1.0 and 1.5 seconds, and hold 12 degrees to the end. At every moment scale up from the center just enough that no black corners show: zoom = cos(angle) + (960/540) * sin(angle), which is about 1.35x at 12 degrees. Keep the size (540x960), 30fps and the audio. Use ffmpeg and save it as output.mp4.Run it without Claude
This is the exact command we tested. Save it as dutch-angle.sh and run:
sh dutch-angle.sh input.mp4 output.mp4Show the command
#!/bin/sh
# Dutch angle: at 1s the level shot eases into a 12-degree tilt over 0.5s and holds it to the end.
# Usage: sh dutch-angle.sh input.mp4 output.mp4
set -e
IN="$1"; OUT="$2"
ANGLE=12 # tilt in degrees, clockwise (use a negative number to lean the other way)
START=1.0 # second at which the tilt begins
RAMP=0.5 # seconds to ease from level into the full tilt
SIZE=$(ffprobe -v error -select_streams v:0 -show_entries stream=width,height -of csv=s=x:p=0 "$IN")
W=${SIZE%x*}; H=${SIZE#*x}
# eased angle in radians at the time given (t or it): 0 before START, ANGLE after START+RAMP, a smooth S-curve between
tilt() { echo "$ANGLE*PI/180*(3*pow(clip(($1-$START)/$RAMP,0,1),2)-2*pow(clip(($1-$START)/$RAMP,0,1),3))"; }
# rotate the frame, then zoom in just enough at every moment that the black corners stay out of the picture
ZOOM="cos(abs($(tilt it)))+max($W,$H)/min($W,$H)*sin(abs($(tilt it)))"
ffmpeg -y -i "$IN" -vf "rotate=a='$(tilt t)':ow=iw:oh=ih:c=black,\
zoompan=z='$ZOOM':d=1:x='iw/2-iw/zoom/2':y='ih/2-ih/zoom/2':s=$SIZE:fps=30" \
-c:v libx264 -crf 18 -pix_fmt yuv420p -c:a copy "$OUT"
