My animation is working, but when finishes, back to original.
As I do to maintain the final state after the termination?
like "animation-fill-mode: forwards" in Css
this.mixer = new THREE.AnimationMixer(this.box);
this.animation = this.mixer.clipAction(this.box.geometry.animations[0]);
this.animation.setDuration(1.5);
this.animation.setLoop(THREE.LoopOnce, 1);
this.mixer.addEventListener( 'finished', function() {
this.animation.stop();
// HOW animation-fill-mode: forwards ?
});
You can use AnimationAction.clampWhenFinished to cause the animation to pause on the last frame once it has completed.
this.mixer = new THREE.AnimationMixer(this.box);
this.animation = this.mixer.clipAction(this.box.geometry.animations[0]);
this.animation.setDuration(1.5);
this.animation.setLoop(THREE.LoopOnce, 1);
this.animation.clampWhenFinished = true;
Hope that helps!
Related
I am using SharpDX to basically render browser (chromium) output buffer on directX process.
Process is relatively simple, I intercept CEF buffer (by overriding OnPaint method) and write that to a texture2D.
Code is relatively simple:
Texture creation:
public void BuildTextureWrap() {
var oldTexture = texture;
texture = new D3D11.Texture2D(DxHandler.Device, new D3D11.Texture2DDescription() {
Width = overlay.Size.Width,
Height = overlay.Size.Height,
MipLevels = 1,
ArraySize = 1,
Format = DXGI.Format.B8G8R8A8_UNorm,
SampleDescription = new DXGI.SampleDescription(1, 0),
Usage = D3D11.ResourceUsage.Default,
BindFlags = D3D11.BindFlags.ShaderResource,
CpuAccessFlags = D3D11.CpuAccessFlags.None,
OptionFlags = D3D11.ResourceOptionFlags.None,
});
var view = new D3D11.ShaderResourceView(
DxHandler.Device,
texture,
new D3D11.ShaderResourceViewDescription {
Format = texture.Description.Format,
Dimension = D3D.ShaderResourceViewDimension.Texture2D,
Texture2D = { MipLevels = texture.Description.MipLevels },
}
);
textureWrap = new D3DTextureWrap(view, texture.Description.Width, texture.Description.Height);
if (oldTexture != null) {
obsoleteTextures.Add(oldTexture);
}
}
That piece of code is executed at start and when resize is happening.
Now when CEF OnDraw I basically copy their buffer to texture:
var destinationRegion = new D3D11.ResourceRegion {
Top = Math.Min(r.dirtyRect.y, texDesc.Height),
Bottom = Math.Min(r.dirtyRect.y + r.dirtyRect.height, texDesc.Height),
Left = Math.Min(r.dirtyRect.x, texDesc.Width),
Right = Math.Min(r.dirtyRect.x + r.dirtyRect.width, texDesc.Width),
Front = 0,
Back = 1,
};
// Draw to the target
var context = targetTexture.Device.ImmediateContext;
context.UpdateSubresource(targetTexture, 0, destinationRegion, sourceRegionPtr, rowPitch, depthPitch);
There are some more code out there but basically this is only relevant piece. Whole thing works until OnDraw happens frequently.
Apparently if I force CEF to Paint frequently, whole host process dies.
This is happening at UpdateSubresource.
So my question is, is there another, safer way to do this? (Update texture frequently)
Solution to this problem was relatively simple yet not so obvious at the beginning.
I simply moved the code responsible for updating texture inside render loop and just keep internal buffer pointer cached.
I would like to use MediaStream.captureStream() method, but it is either rendered useless due to specification and bugs or I am using it totally wrong.
I know that captureStream gets maximal framerate as the parameter, not constant and it does not even guarantee that, but it is possible to change MediaStream currentTime (currently in Chrome, in Firefox it has no effect but in return there is requestFrame, not available at Chrome), but the idea of manual frame requests or setting the placement of the frame in the MediaStream should override this effect. It doesn't.
In Firefox it smoothly renders the video, frame by frame, but the video result is as long as wall clock time used for processing.
In Chrome there are some dubious black frames or reordered ones (currently I do not care about it until the FPS matches), and the manual setting of currentTime gives nothing, the same result as in FF.
I use modified code from MediaStream Capture Canvas and Audio Simultaneously answer.
const FPS = 30;
var cStream, vid, recorder, chunks = [], go = true,
Q = 61, rec = document.getElementById('rec'),
canvas = document.getElementById('canvas'),
ctx = canvas.getContext('2d');
ctx.strokeStyle = 'rgb(255, 0, 0)';
function clickHandler() {
this.textContent = 'stop recording';
//it has no effect no matter if it is empty or set to 30
cStream = canvas.captureStream(FPS);
recorder = new MediaRecorder(cStream);
recorder.ondataavailable = saveChunks;
recorder.onstop = exportStream;
this.onclick = stopRecording;
recorder.start();
draw();
}
function exportStream(e) {
if (chunks.length) {
var blob = new Blob(chunks)
var vidURL = URL.createObjectURL(blob);
var vid2 = document.createElement('video');
vid2.controls = true;
vid2.src = vidURL;
vid2.onend = function() {
URL.revokeObjectURL(vidURL);
}
document.body.insertBefore(vid2, vid);
} else {
document.body.insertBefore(document.createTextNode('no data saved'), canvas);
}
}
function saveChunks(e) {
e.data.size && chunks.push(e.data);
}
function stopRecording() {
go = false;
this.parentNode.removeChild(this);
recorder.stop();
}
var loadVideo = function() {
vid = document.createElement('video');
document.body.insertBefore(vid, canvas);
vid.oncanplay = function() {
rec.onclick = clickHandler;
rec.disabled = false;
canvas.width = vid.videoWidth;
canvas.height = vid.videoHeight;
vid.oncanplay = null;
ctx.drawImage(vid, 0, 0);
}
vid.onseeked = function() {
ctx.drawImage(vid, 0, 0);
/*
Here I want to include additional drawing per each frame,
for sure taking more than 180ms
*/
if(cStream && cStream.requestFrame) cStream.requestFrame();
draw();
}
vid.crossOrigin = 'anonymous';
vid.src = 'https://dl.dropboxusercontent.com/s/bch2j17v6ny4ako/movie720p.mp4';
vid.currentTime = 0;
}
function draw() {
if(go && cStream) {
++Q;
cStream.currentTime = Q / FPS;
vid.currentTime = Q / FPS;
}
};
loadVideo();
<button id="rec" disabled>record</button><br>
<canvas id="canvas" width="500" height="500"></canvas>
Is there a way to make it operational?
The goal is to load video, process every frame (which is time consuming in my case) and return the processed one.
Footnote: I do not want to use ffmpeg.js, external server or other technologies. I can process it by classic ffmpeg without using JavaScript at all, but this is not the point of this question, it is more about MediaStream usability / maturity. The context is Firefox/Chrome here, but it may be node.js or nw.js as well. If this is possible at all or awaiting bug fixes, the next question would be feeding audio to it, but I think it would be good as separate question.
I'm having trouble stopping a tween in three.js, using tween.js.
The docs state to use tween.stop(), but that doesn't seem to work.
Example here:
http://jsfiddle.net/feLzjzy9/1/
As you hover with the mouse over a box, it starts to change color. This animation takes 10 seconds, but I try to stop it just to test the .stop() feature using setTimeout(function(){ tween.stop() }, 1000);but it doesn't do a thing...
Any help is much appreciated!
There is Reference problem and update problem.
I made some changes in you code. It is not a solution, you can use each change individually.
Best solution is to make each tween as var inside a function, integrate counting in tweened objects and use onUpdate(function(){if(this.counter > 1000){tween.stop}}) (INTERSECTED.material.color) because you creating a lot of unrefferenced timers and tweens, which will be a performance problem.
function animate() {
//
TWEEN.update();
//
}
if (intersects.length > 0) {
if (INTERSECTED != intersects[0].object) {
if (INTERSECTED) INTERSECTED.material.color.setHex(INTERSECTED.currentHex);
INTERSECTED = intersects[0].object;
INTERSECTED.currentHex = INTERSECTED.material.color.getHex();
//INTERSECTED.material.emissive.setHex(0xff0000);
TWEEN.remove(tween);
tween = new TWEEN.Tween(INTERSECTED.material.color).onStart(function(){
setTimeout(function(){ tween.stop() }, 1000); ///not good
}).start();
.to({r: 0, g: 25, b: 155}, 10000) /// here set correct time
.easing(TWEEN.Easing.Quartic.In)
.start();
setTimeout(function(){ tween.stop() }, 1000);/// will not work if you create anoter it that one second
}
else {
if(tween) tween.update(time); // bad
}
}
Can I call a function(one that will make another object visible/invisible) on a specific animation frame or time? I would like to have arrows describe the movement of the animation at certain times during the animation. While I can just make them visible when I start the animation and make them invisible when the animation stops, I would like to specify ranges inside the animation to do this
playPatientAnim: function (anim, callback) {
var pending = 1;
var me = this;
var finish = callback ? function () {
if (pending && !--pending) {
callback.call(me, anim);
}
} : null;
me.currentPatient.skinned.forEach(function (mesh) {
mesh.animations.forEach(function(anim){
anim.stop();
});
});
me.currentPatient.skinned.forEach(function (mesh) {
var animation = mesh.animations[anim];
animation.stop();
if (animation) {
pending++;
animation.onComplete = finish;
animation.play();
}
});
if (finish) {
finish();
}
}
You can make a mesh visible or invisible ( mesh.visible = false; //or true ). To change visibility at certain time you could use timestamp:
new Date().getTime() and calculate how you want to do the sequence of your animation.
I'm trying to change the bitmap image in createjs and want to remove all children in a container when reset button is clicked. But removeAllChildren is not working in me.
function drawPhoneImage() {
stage = new createjs.Stage('canvas');
container = new createjs.Container();
phone = new createjs.Bitmap(phoneImg);
phone.x = 268;
phone.y = 64;
stage.addChild(container);
container.addChild(phone);
stage.update();
phone.addEventListener("click", function() {
console.log('phone clicked');
createjs.Ticker.addEventListener("tick", movePhoneImage);
});
}
function movePhoneImage(event) {
phone.x -=10;
if(phone.x < 156) {
phone.x =156;
showPhoneSnap();
}
stage.update(event);
}
Then after clicking the phone object, I'll need to replace it with another bitmap(which works):
function showPhoneSnap() {
snap = new createjs.Bitmap(snapImg);
snap.x = 156;
snap.y = 64;
container.removeAllChildren();
container.addChild(snap);
stage.update();
}
At first, removeAllChildren is working in the first child of the container, but when i tried resetting the stage after adding another bitmap in the container..removeAllChildren() is not working.
function resetStage() {
container.removeAllChildren();
stage.update();
}
I'm having a hard time solving this issue, thanks for anyone who can help.
Make sure that "snapImg" is an image that is loaded.
snap = new createjs.Bitmap(snapImg);
The issue is that you are not updating the stage when the image is loaded.
var image = new Image();
image.src = "path";
image.onload = showPhoneSnap;
function showPhoneSnap() {
//This will ensure that the image is ready.
var bmp = new createjs.Bitmap(this);
...
stage.update();
}