05 · composition & mask

Three nested compositions, each with its own coordinate system, plus three masks: a circular avatar crop, an iris reveal, and a punched-out hole using maskInverted.

• type: 'composition' with explicit width/height — children use local W/H; GW/GH still refer to the root
• Composition itself transforms as a unit (rotate the parent → children come along)
• mask on any sequence, animatable like a normal child
• maskInverted: true — flip the mask to punch a hole instead of cropping