Which animations work best in three.js? Are you using additional libraries like tween.js or something else for texture animations, moving objects, and showing/hiding objects? Thank you.
Which animations work best in three.js? Are you using additional libraries like tween.js or something else for texture animations, moving objects, and showing/hiding objects? Thank you.
Tween.js is highly recommended... find out more in this informative article:
It is widely acknowledged that implementing RequestAnimationFrame is crucial in optimizing browser performance. Three.js even offers a cross-browser shim for this purpose.
In addition to RequestAnimationFrame, I highly recommend using Frame.js for managing timeline-based renders. While RequestAnimationFrame sets a minimum frame-rate based on browser performance, tools like Frame provide better flow control by allowing a maximum frame-rate and handling multiple resource-intensive operations more efficiently.
Another valuable tool I utilize in my three.js applications is Javascript FSM. Whether it's creating a user interface or a game, effectively managing object states and smooth transitions between animations and rules are crucial components of complex application logic.
Furthermore, integrating an easing library is essential. Personally, I often use the jQuery.easing plugin. While designed for jQuery.animate, you can access the easing functions like this:
var x = {}; // an empty object (required for jQuery, but not us)
var t = currentTime;
var b = beginningValue;
var c = potentialChangeInValue;
var d = durationOfAnimation;
valueAtTime = jQuery.easing.easeOutExpo(x, t, b, c, d);
The jQuery plugin, along with most easing plugins, is based on Robert Penner's ActionScript2 easing library. If the t,b,c,d parameters seem unfamiliar, exploring Penner's library is recommended for a deeper understanding.
Here's a quick summary from 2017: Take a look at this easy-to-use timeline library that can smoothly activate FSM (state-based animation) and tween.js (smooth animation):
Here is the code snippet you can use:
window.requestAnimloop = (function(){
return window.requestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.oRequestAnimationFrame ||
window.msRequestAnimationFrame ||
function(callback){
window.setTimeout(callback, 1000 / 60);
};
})();
(function startAnimation(){
requestAnimloop(startAnimation);
display();
})();
function display()
{
// INSERT YOUR CODE HERE (UPDATE AND DRAWING USUALLY)
}
You can find more information from the original creator at:
This code snippet was created to mimic orbiting with human-like qualities (jerky movements), but it can also be applied to other types of animations such as object translations, positions, and rotations.
function animateNode(node, property, array, duration){
var obj, firstVal, secondVal, xyz, i, v, tween, html, previousTween, starterTween;
switch(node){
case "camera": obj = camera; break;
default: obj = scene.getObjectByName(node);
}
xyz = ["x", "y", "z"];
$.each(array, function(i, values){
firstVal = obj[property];
secondVal = {};
$.each(values, function(i, value){
secondVal[xyz[i]] = value;
})
tween = new TWEEN.Tween(firstVal)
.to(secondVal, duration)
.onUpdate(function(){
$.each(xyz, function(i, axis){
obj[property][xyz[i]] = firstVal[xyz[i]];
})
})
.onComplete(function(){
html = [];
$.each(xyz, function(i, axis){
html.push(Math.round(firstVal[xyz[i]]));
})
$("#camPos").html(html.join(","))
})
if(i > 0){
tween.delay(250);
previousTween.chain(tween);
}
else{
starterTween = tween;
}
previousTween = tween;
});
starterTween.start();
}
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