源网址:https://sundstedt.se/blog/ae-script-nudge-keyframes-to-nearest-exact-frame/
介绍
将关键帧修复到邻近整数关键帧
优化版可以参见本站对齐整数帧V1.2
注意
该脚本适用于所有变换关键帧，即锚点、位置、缩放、旋转和不透明度。不会处理任何效果关键帧。也不保留插值方法！
源码
// asu_NudgeKeyFrames.jsx
// Copyright (c) 2010 sundstedt.se (Anders Sundstedt). All rights reserved.
// check it: http://www.aescripts.blogspot.com/
//
// Name: asu_NudgeKeyFrames
// souce:https://sundstedt.se/blog/ae-script-nudge-keyframes-to-nearest-exact-frame/
// Version: 1.1
//
// Description:
// This script moves all keyframes to the nearest matching keyframe for the framerate of that comp
// Note: It handles AnchorPoint, Position, Scale, Rotation and Opacity keyframes.
// Note: Existing keyframes are removed prior to creating the adjusted (nudged) keyframe
//
// Usage: Just run this script on any open project (make sure you save project first just in case).
// Script has been tested using Adobe After Effects CS3 and works for me but may still need improvements.
// Originally requested by David Aughenbaugh
//
// Legal stuff:
// This script is provided "as is," without warranty of any kind, expressed
// or implied. In no event shall the author be held liable for any damages
// arising in any way from the use of this script.
// ***Modified April 2008 by Mary Snyder (mary@pxlgirl.com)***
// ***In this version of the script, you must have layers selected within a comp.***
// ***Otherwise, the script will generate an error.***
var proj = app.project;
var undoStr = "Nudge Keyframes";
if (proj) {
var myComp = app.project.activeItem;
if (myComp != null && (myComp instanceof CompItem)) {
var myLayers = myComp.selectedLayers;
if (myLayers.length != 0) {
app.beginUndoGroup(undoStr);
for (i = 0; i <= myLayers.length - 1; i++) {
t = i + 1;
writeLn("Modifying Layer " + t + " of " + myLayers.length);
var fps = myComp.frameRate;
for (var j = 1; j <= myLayers[i].position.numKeys; j++) {
// myNearestKeyIndex = layers[i].position.nearestKeyIndex(0);
var mykeyTime = myLayers[i].position.keyTime(j); // j is a keyframe nr
// I want to set the time value of keyfram (j)
nearestTime = Math.round(mykeyTime * fps) / fps; // round to nearest keyframe value;
// Copy the position value (x,y,z) of keyframe(j)
var posValueCopy = myLayers[i].position.keyValue(j);
// Delete the keyframe
myLayers[i].position.removeKey(j);
// Add a replacement key for removed key at correct position
myLayers[i].position.addKey(nearestTime);
// Set the position value of keyframe k to the stored position value of deleted keyframe
myLayers[i].position.setValueAtKey(j, posValueCopy);
}
// for all keyframes of that layer
for (var j = 1; j <= myLayers[i].scale.numKeys; j++) {
// myNearestKeyIndex = layers[i].position.nearestKeyIndex(0);
var mykeyTime = myLayers[i].scale.keyTime(j); // j is a keyframe nr
// I want to set the time value of keyfram (j)
nearestTime = Math.round(mykeyTime * fps) / fps; // round to nearest keyframe value;
// Copy the position value (x,y,z) of keyframe(j)
var scaleValueCopy = myLayers[i].scale.keyValue(j);
// Delete the keyframe
myLayers[i].scale.removeKey(j);
// Add a replacement key for removed key at correct position
myLayers[i].scale.addKey(nearestTime);
// Set the position value of keyframe k to the stored position value of deleted keyframe
myLayers[i].scale.setValueAtKey(j, scaleValueCopy);
}
// for all keyframes of that layer
for (var j = 1; j <= myLayers[i].rotation.numKeys; j++) {
// myNearestKeyIndex = layers[i].position.nearestKeyIndex(0);
var mykeyTime = myLayers[i].rotation.keyTime(j); // j is a keyframe nr
// I want to set the time value of keyfram (j)
nearestTime = Math.round(mykeyTime * fps) / fps; // round to nearest keyframe value;
// Copy the rotation value of keyframe(j)
var rotValueCopy = myLayers[i].rotation.keyValue(j);
// Delete the keyframe
myLayers[i].rotation.removeKey(j);
// Add a replacement key for removed key at correct position
myLayers[i].rotation.addKey(nearestTime);
// Set the position value of keyframe k to the stored position value of deleted keyframe
myLayers[i].rotation.setValueAtKey(j, rotValueCopy);
}
// for all keyframes of that layer
for (var j = 1; j <= myLayers[i].opacity.numKeys; j++) {
// myNearestKeyIndex = layers[i].position.nearestKeyIndex(0);
var mykeyTime = myLayers[i].opacity.keyTime(j); // j is a keyframe nr
// I want to set the time value of keyfram (j)
nearestTime = Math.round(mykeyTime * fps) / fps; // round to nearest keyframe value;
// Copy the opacity value (x,y,z) of keyframe(j)
var opacityValueCopy = myLayers[i].opacity.keyValue(j);
// Delete the keyframe
myLayers[i].opacity.removeKey(j);
// Add a replacement key for removed key at correct position
myLayers[i].opacity.addKey(nearestTime);
// Set the position value of keyframe k to the stored position value of deleted keyframe
myLayers[i].opacity.setValueAtKey(j, opacityValueCopy);
}
// for all keyframes of that layer
for (var j = 1; j <= myLayers[i].anchorPoint.numKeys; j++) {
// myNearestKeyIndex = layers[i].position.nearestKeyIndex(0);
var mykeyTime = myLayers[i].anchorPoint.keyTime(j); // j is a keyframe nr
// I want to set the time value of keyfram (j)
nearestTime = Math.round(mykeyTime * fps) / fps; // round to nearest keyframe value;
// Copy the anchorpoint value (x,y,z) of keyframe(j)
var anchorValueCopy = myLayers[i].anchorPoint.keyValue(j);
// Delete the keyframe
myLayers[i].anchorPoint.removeKey(j);
// Add a replacement key for removed key at correct position
myLayers[i].anchorPoint.addKey(nearestTime);
// Set the position value of keyframe k to the stored position value of deleted keyframe
myLayers[i].anchorPoint.setValueAtKey(j, anchorValueCopy);
}
}
app.endUndoGroup();
} else {
alert("Please select a layer in the comp to use this script");
}
} else {
alert("Please select an active comp to use this script");
}
} else {
alert("Please open a project first to use this script.");
}