Weird background glitch when using animation on the page in Chrome - html

If i have an animated element followed by another non-animated element, banding effect and various color shifting bugs appear in Chrome. Hard to see, but i recorded a video(if you zoom in on the page, the color shifts, easier to see): https://d26dzxoao6i3hh.cloudfront.net/items/1w1k2e3v0g04142U2A3H/Screen%20Recording%202017-10-30%20at%2011.35%20PM.mov
header {
height: 100vh;
display: flex;
align-items: center;
justify-content: center;
background: #263238;
}
header a {
animation: scroll-down-anim 1s infinite;
}
#keyframes scroll-down-anim {
0% {
transform: translateY(0);
}
100% {
transform: translateY(10px);
}
}
<header>
Animated element
</header>
<p>if i remove this, the glitch disappears</p>
Any ideas how to fix this? If i remove the <p> element, it works. Also works on any other browser, like Safari.

Well this actually works for me, so I strongly suspect that it's just your graphics card or version of Chrome that's having issues.
However I would suggest that the reason it's happening is that the translate style forces Chrome to render using the GPU and having the P tag there is giving it a hard time.
If you were to force the P tag to use the same translation too then that might fix the issue for you, like this:
p {
transform: translateY(0);
}

it has nothing to do with chrome or your codes
Its your gpu ! specially if you have a m series Gpu (laptop to be exact)
so what happens is when you're using a ratio or a resolution higher or lower than your monitors native settings you put too much pressure on the gpu !
Update your graphics software by the os itself or bring the resolution back to its factory resolution

Related

Why is this animation not working in IE11?

I found the animation below for a screensaver I'd like to use for digital signage. Problem is, it wont work with IE11, the only browser supported on the target system.
What needs to be changed to make it work? I can't find on caniuse.com what feature isn't working in IE.
Codepen: https://codepen.io/scottkellum/pen/BoZvjR
IE11 Debug Link: https://s.codepen.io/scottkellum/debug/BoZvjR
Code with SCSS removed:
body {
margin: 0;
}
img, div {
width: 100px;
height: 100px;
}
.x {
animation: x 13s linear infinite alternate;
}
.y {
animation: y 7s linear infinite alternate;
}
#keyframes x {
100% {
transform: translateX( calc(100vw - 100px) );
}
}
#keyframes y {
100% {
transform: translateY( calc(100vh - 100px) );
}
}
<div class="x">
<img class="y" src="https://blog.codepen.io/wp-content/uploads/2012/06/Button-Black-Large.png" alt="codepen" />
</div>
If it isn't possible to use that exact way, is there another way to bounce an image around the screen?
EDIT: I can't finde the solution in the proposed answer of CSS3 animation is not working in IE11 but works in other browsers: There is no running statement in the animation, I tried adding the overflow:visible and the containers don't change size.
I found it out, I looked up every CSS3 function on icanuse.com again, and it turns out, calc() doesn't work inside transform in IE10, IE11, and Edge < 14.
I can live with the workaround of setting the screen dimensions manually (it's for digital signage and the screen will always be shown on full HD)

Please explain to me how this CSS property removes the trailing lines from a transition

This is a bit of a long-winded question, but I hope someone can break this down for me. I have 2 questions:
Why a CSS property doesn't do what it should.
Why this particular CSS property works on an unsuspecting element, and why it doesn't work on the CSS :hover selector.
Created a flipcard animation. Got some graphics/trailing lines issues with transitions (in Chrome).
Doing some Googling, I found out that apparently, using -webkit-transform: translate3d(0,0,0); is supposed to fix the issue by using hardware acceleration.
However, I couldn't figure out where to place this CSS property. I tried placing it on the .flipcard-container, .flipcard, on the actual transition (.flipcard-container: hover .flipcard).
None of these removed the trailing lines caused by the animation.
Question 1: Where can I use the -webkit-transform: translate3d(0,0,0); properly in order to take advantage of the hardware acceleration, and why does/doesn't it work there?
But, after doing even more Googling and copying someone else's code, I found adding perspective: 600pxto the .flipcard-container somehow fixed the issue. And on top of that, it even makes my animation look really nice.
It shouldn't bother me so much, but it does that I cannot figure out why this worked.
According to the MDN docs:
The perspective CSS property determines the distance between the z=0
plane and the user in order to give a 3D-positioned element some
perspective.
Question 2: Why does this work in my transition so well? Shouldn't I have to place perspective in .flipcard-container: hover .flipcard instead of the .flip-container?
Of course, when placing it in the css :hover selector, the entire transition stops working. Does the perspective property also use hardware acceleration?
Here is the code, and thank you in advance.
.flipcard-container {
height: 400px;
width: 300px;
/* uncommenting the below property will fix the issue */
/* -webkit-perspective: 600; */
}
.flipcard-container:hover .flipcard {
transform: rotateY(180deg) scale(1.5);
}
.flipcard, .front, .back {
width: 100%;
height: 100%;
}
.flipcard {
transform-style: preserve-3d;
transition: all .8s ease-in-out;
}
.front {
background: #6093e5;
position: relative;
backface-visibility: hidden;
}
.back {
background: #e56060;
position: absolute;
backface-visibility: hidden;
top: 0;
transform: rotateY(180deg);
}
<div class="flipcard-container">
<div class="flipcard">
<div class="front"></div>
<div class="back"></div>
</div>
</div>
Question 1
You are overriding the transform: tags with the hardware acceleration. This causes that the animation doesn't work if you put it in.
You can use this, to archive better (more stable fps)
.flipcard-container:hover .flipcard {
transform: rotateY(180deg) scale(1.5);
will-change: -webkit-transition;
will-change: transition;
}
it uses the new will-change property.
More details
The will-change CSS property provides a way for authors to hint
browsers about the kind of changes to be expected on an element, so
that the browser can setup appropriate optimizations ahead of time
before the element is actually changed. These kind of optimizations
can increase the responsiveness of a page by doing potentially
expensive work ahead of time before they are actually required.
Question 2
If you look at e.g. this:
https://codepen.io/jfcorugedo/pen/bBPWaO?q=3d+turn&limit=all&type=type-pens
you see that it also uses the perspective tag. It is used that you can see the rotation of the box (like in your case).
If you remove it, it looks like your code. It works only on the container because the object you want to flip is wrapped in it.
If you have more questions just ask :)

transform: scale() firefox text issue

I want to use css-transforms to scale a text on hover to another size. It works very well in all browsers (even IE!), but firefox has a strange problem with the font. The animation + scale works but the text in the scaled element becomes a bit unsharp and then after a few milliseconds it becomes sharp again.
I made a simple example where you can reproduce it.
HTML:
<div class="container">
<div class="scale">
Now that we know who you are, I know who I am. I'm not a mistake! It all makes sense! In a comic, you know how you can tell who the arch-villain's going to be? He's the exact opposite of the hero. And most times they're friends, like you and me! I should've known way back when... You know why, David? Because of the kids. They called me Mr Glass.
</div>
</div>
CSS:
.container {
height: 300px;
width: 300px;
margin-left: 100px;
margin-top: 100px;
}
div.scale {
transition: 0.1s linear;
}
div.scale:hover {
transform: scale(1.5);
}
Any help would be cool!
Thanks in advance
I tried scaling it to 2 and it works. It seems there is a issue when scaling with numbers which have fractional digits. I'm going to report this bug to the mozilla team.
It appears that by adding translateZ(0) the blurry effect disappears.
div.scale:hover {
transform: scale(1.5) translateZ(0);
}
This way it forces a 2D transform.

How to fix blurry Image on transform scale

When i put transform: scale(1.1); on hover on some element the image became blurry. How to fix this bug?
Example
Try this, it's work fine for me!
img {
-webkit-backface-visibility: hidden;
-ms-transform: translateZ(0); /* IE 9 */
-webkit-transform: translateZ(0); /* Chrome, Safari, Opera */
transform: translateZ(0);
}
TL;DR
transform: scale is actually scaling the original image, and because you are leaving it to the browser's render engine to figure out what should go there you got a blurry image. try
img {
transform: scale(.9)
}
img:hover {
transform: scale(1)
}
Aaron Sibler answered the question for me.
I just experienced this riddle. In your example, you’ll
need to transform img DOWN something like “transform: scale(0.7)” and
then scale UP to the images native dimensions on hover like
“transform: scale(1.0)”
The scale value is relative to the original image’s dimensions – not
their current dimensions on screen so a scale of 1 always equals the
original image’s dimensions.
I’ve used this here;
http://meetaaronsilber.com/experiments/css3imgpop/index.html
I had this problem with SVG scaling and blurry images. I scaled up a background image to 4.5 and the image rendered very blurry while scaling up.
I read that you can scale down first transform: scale(0.7) and then scale up to transform: scale(1.0). In my case this meant a huge rebuild of my animation. I had a very complex animation with multiple scales and transforms etc.
I just left all as is and added a pseudo scale width. The browser then seems to re-render every frame, but since the width does not actually change you still can use
transform: scale(x.x) for scaling and you get a very sharp image.
Maybe someone can confirm this. Here is my code. In my case the image was 86px wide and it zoomed up to 4.5 times the initial value.
<div class="overall-scale">
<div class="image-scale"></div>
</div>
#keyframes overall-scale {
0% {
transform: scale(1);
}
100% {
transform: scale(4.5);
}
}
#keyframes image-scale {
0% {
width: 86px;
}
100% {
width: 86px;
}
}
Hope this helps and my explanation makes sense.
Please comment if this does not work for you.
I' ve read all the comments, and tryied all solutions people suggested. But nothing was really good except rotate(360deg). Everything, except this one made stuttering on images, or they became too blurry initially. But rotating is looking strange if you don't hide it. So I decided to rotate for 0.0000001deg and it worked! Image is blurry only during the transition, but at the end and at the start of it it is sharp. May be I just had too small pictures.
So, my current solution is adding this part to CSS (and nothing else):
img {
transform: rotate(0.00000000001deg);
}

Mouse Cursor As .Gif not Animating

I am trying to use a gif as a mouse cursor but the cursor is not animating at all for me. I've tried a few different sizes, but no luck.
html, body {
height: 100%;
margin: 0;
padding: 0;
cursor: url(White-Sperm.gif), url(Sperm-Cursor.png), auto;
}
JS Fiddle referencing the gif I'm using is here:
http://jsfiddle.net/Fq9RL/
My designer says that in Safari, it animates "a little" for him, but is stalling and not smooth. It doesn't animate at all in Safari for me and does not work in Chrome for either of us.
Has anyone tried this technique before? We've tried using fewer frames in the gif, a smaller delay, a smaller gif size, etc. Any help is much appreciated!
A similar question was asked here :
Animated cursor support in web applications?
After doing some more research, I don't think it's possible at the moment. It doesn't seem that any of the browsers support animated cursors as of 2/8/2012 using the CSS cursor property. I suppose it could be done using JavaScript to repeatedly change the value of the cursor property every few frames to make it appear animated, but that may be more trouble than it is worth.
So the answer seems to be that it isn't possible at the moment.
One solution is to use the CSS animation to animate the cursor image from a frame to another:
html, body {
height: 100%;
margin: 0;
padding: 0;
cursor: url(frame1.gif), auto;
animation: cursor 1s linear infinite;
}
#keyframes cursor{
0% {
cursor: url(frame1.gif), auto;
}
50% {
cursor: url(frame2.gif), auto;
}
100% {
cursor: url(frame3.gif), auto;
}
}
Add as many frames as needed.