There are issues encountered when baking camera animations using a script.

Question

I'm currently writing a script to bake camera animations. Due to the complex parent-child relationships of the camera, I've resorted to a somewhat clumsy approach: detaching the camera from its children, recording the values for that frame, reattaching its children, shifting the time indicator to the next frame...

I've implemented a for loop to record the camera position values at each frame of the time indicator. It runs successfully, but it only captures the position values of the camera for the first frame, rather than for each frame of the animation.

app.beginUndoGroup("11111");

var rawCamera = app.project.activeItem.layer(7);

var rawCameraParentIndex = rawCamera.parent.index;

var bakeCamera = app.project.activeItem.layer(8);

var timeIndicator = app.project.activeItem.time;

for (var i = 0; i <= 20; i++) {

var timeIndicator = i / app.project.activeItem.frameRate;

rawCamera.parent = null;

bakeCamera.position.setValueAtTime(timeIndicator, rawCamera.position.value);

bakeCamera.orientation.setValueAtTime(timeIndicator, rawCamera.orientation.value);

rawCamera.parent = app.project.activeItem.layer(rawCameraParentIndex);

}

app.endUndoGroup();

Mylenium · Answer

Your timeIndicator calculation probably doesn't make a lot of sense. Why don't you use internal methods like frameToTime()? Aside from that the typical way of avoiding convoluted procedures and potentialy false calculations is to apply a temporary expression, in your case one with toWorld(), presumably, then bake the keys and remove the expression again in the script.

Mylenium

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