Transitions go in the top-level transitions array. Each transition references two element id values via from_id (outgoing) and to_id (incoming).
Elements used in transitions must have an id set. For text and image elements, duration is also required.
Cross dissolve
Fade between two video clips. The time values create a sequential timeline; the transition overlaps the cut.
{
"width": 1920,
"height": 1080,
"duration": 12,
"elements": [
{
"type": "video",
"id": "clip_a",
"source_url": "https://cdn.example.com/clip-a.mp4",
"time": 0
},
{
"type": "video",
"id": "clip_b",
"source_url": "https://cdn.example.com/clip-b.mp4",
"time": 6
}
],
"transitions": [
{ "type": "cross_dissolve", "duration": 1.0, "from_id": "clip_a", "to_id": "clip_b" }
]
}
Wipe left
{
"width": 1920,
"height": 1080,
"duration": 12,
"elements": [
{
"type": "video",
"id": "clip_a",
"source_url": "https://cdn.example.com/clip-a.mp4",
"time": 0
},
{
"type": "video",
"id": "clip_b",
"source_url": "https://cdn.example.com/clip-b.mp4",
"time": 6
}
],
"transitions": [
{
"type": "wipe_left",
"duration": 0.8,
"from_id": "clip_a",
"to_id": "clip_b"
}
]
}
All transition types
type | Description |
|---|
cross_dissolve | Standard crossfade (Premiere: Cross Dissolve) |
dip_to_black | Fade through black (Premiere: Dip to Black) |
dip_to_white | Fade through white (Premiere: Dip to White) |
wipe_left | Wipe to the left |
wipe_right | Wipe to the right |
wipe_up | Wipe upward |
wipe_down | Wipe downward |
diagonal_wipe | Diagonal wipe |
barn_doors_horizontal | Horizontal barn doors open/close |
barn_doors_vertical | Vertical barn doors open/close |
iris | Iris / concentric circle wipe |
page_turn | Page turn / peel |
cross_zoom | Zoom dissolve between clips (Premiere: Cross Zoom) |
gradient_wipe | Gradient-based wipe (Premiere: Gradient Wipe) |
band_wipe | Band wipe (Premiere: Band Wipe) |
box_wipe | Box shrink / grow wipe (Premiere: Box Wipe) |
