CSS 3D : rotateY + translateX make elements flicker during in Firefox

Question

我需要在某些元素上实现“房间”3d 旋转；为了实现它，使用了 transform: translateX(-100%) rotateY(90deg) 及其相反的转换。它在 Chrome 中运行良好，但在 Firefox(最高版本 34)中，元素在过渡期间闪烁。他们可以只这样做片刻，已经走了一半，或者完全消失。

我注意到的是:如果父级的 perspective CSS 值高于相关元素的计算宽度 - 过渡顺利。如果观点真的是罪魁祸首，那么我不明白这种行为的本质；规范说，如果 所有点 的 Z 轴值低于透视值，则不会绘制元素。在过渡期间，我的至少应该部分可见。

应该注意的是，只有 rotateY 看起来有问题 - 而不是 rorateX。

这里是代码示例。 HTML:

<div class="cont">
    <div id="bg-club" class="background club"></div>
    <div id="bg-cafe" class="background cafe active"></div>
    <div id="bg-fitness" class="background fitness"></div>
    <div id="bg-resto" class="background resto"></div>
    <div id="bg-lady" class="background lady"></div>
</div>

CSS(为方便起见，删除了前缀规则):

 .cont{
      position:absolute;
      top:0;
      right:0;
      bottom:0;
      left:0;
      z-index:1;
      overflow:hidden;

      perspective:1000px;
      transform-style:preserve-3d;
 }
 .background.active{
      visibility:visible;
      z-index:1;
 }
 .background{
      position:absolute;
      top:50px;
      right:50px;
      bottom:50px;
      left:50px;
      z-index:10;

      backface-visibility: hidden; 
      transform: translate3d(0, 0, 0);
      transform-style: preserve-3d; 

      visibility:hidden;
      overflow:hidden;

      background-repeat:no-repeat;
      background-position:center center;
      background-size:cover;
     }
      .background.cafe{background-color:#987071;}
      .background.club{background-color:#a3367f}
      .background.fitness{background-color:#79728b;}
      .background.lady{background-color:#a6160e;}
      .background.resto{background-color:#712912;}
.rotateRoomLeftOut {
    transform-origin: 100% 50%;
    animation: rotateRoomLeftOut 4s both ease;
}
.rotateRoomLeftIn {
    transform-origin: 0% 50%;
    animation: rotateRoomLeftIn 4s both ease;
}

@keyframes rotateRoomLeftOut {
    to { opacity: .3; transform: translateX(-100%) rotateY(90deg); }
}
@keyframes rotateRoomLeftIn {
    from { opacity: .3; transform: translateX(100%) rotateY(-90deg); }
}

这里是 the fiddle .通过按下 1-5 个黄色框，我们可以激活相应的背景动画。这里的视角是1000px，所以需要的效果可以通过调整窗口大小来实现。

另一个例子是this great set of page 3D transitions .只需导航至旋转->房间->房间向左或向右。

---

编辑

似乎 Firefox 只使那些元素闪烁，其相应的尺寸(width 为 RotateY 或 height 为 rotateX) 大于父级的视角。我还没有弄清楚，为什么会这样，但到目前为止最简单和最直接的解决方案是将上述视角设置为大于元素的维度。在我的例子中，对于 FF 19+ 或其他方式，它将是 100vw(或 100vmax 以涵盖两个旋转维度)。

更新后的代码段:

$(document).ready(function(){
	var generalEvtAffix = '.hotdot', bodyEl = $('body'), pageContents = $('.sidebar, .center-block'),
		tabsSel = $('.areas [data-toggle="tab"]');
		
	// Анимация фонов на главной
	var bgs = $('.background');
	$('.areas [data-toggle="tab"]').on('click'+generalEvtAffix, function(event){
		event.preventDefault();
		var thisLink = $(this);
		/* Если уже активен или анимация всё ещё не закончена, ничего не делаем */
		if(thisLink.parent().hasClass('active') || bgs.hasClass('animated'))
			return;
		var bg = $('#bg-'+this.getAttribute('data-bg')),
			bgActive = $('.background.active');
		/* Случайным образом определяем направление анимации. */
		var animationDirs = ["Left"/* , "Top", "Right", "Bottom" */],
			animationDirection = animationDirs[Math.floor(Math.random() * (animationDirs.length) + 0)];
			
		/* - отключаем клик по ссылке на направлении - чтобы временно заблокировать переключение вкладок */
		tabsSel.on('click'+generalEvtAffix+'.clicked', function(e){
			e.preventDefault();
			return false;
		});
		
		bgActive.addClass('animated rotateRoom'+animationDirection+'Out')
			.on('animationend.homepage-area-click webkitAnimationEnd.homepage-area-click', function(){
				/* По окончании анимации "Прочь" прошлого активного элемента скрываем его */
				$(this).removeClass('animated active rotateRoom'+animationDirection+'Out')
					.off('animationend.homepage-area-click webkitAnimationEnd.homepage-area-click');
			});
		bg.addClass('animated active rotateRoom'+animationDirection+'In')
			.on('animationend.homepage-area-click webkitAnimationEnd.homepage-area-click', function(event){
				/* По окончании анимации обратно включаем клик. */
				console.log(event);
				$(this).removeClass('animated rotateRoom'+animationDirection+'In')
					.off('animationend.homepage-area-click webkitAnimationEnd.homepage-area-click');;
				tabsSel.off('click'+generalEvtAffix+'.clicked');
			});
	});
	});

 .cont{
	position:absolute;
	top:0;
	right:0;
	bottom:0;
	left:0;
	z-index:1;
	overflow:hidden;
	
	-webkit-perspective:1000px;
	-moz-perspective:1000px;
	perspective:1000px;
	-webkit-transform-style:preserve-3d;
	-moz-transform-style:preserve-3d;
	transform-style:preserve-3d;
}
@-moz-document url-prefix(){
    .cont{
     perspective:100vw;   
    }
}
.background.active{
	visibility:visible;
	z-index:1;
}
.background{
	position:absolute;
	top:50px;
	right:50px;
	bottom:50px;
	left:50px;
    z-index:10;
	
 	-webkit-backface-visibility: hidden;
	-moz-backface-visibility: hidden;
	backface-visibility: hidden; 
    -webkit-transform: translate3d(0, 0, 0);
    -moz-transform: translate3d(0, 0, 0);
    transform: translate3d(0, 0, 0);
 	-webkit-transform-style: preserve-3d;
	-moz-transform-style: preserve-3d;
	transform-style: preserve-3d; 
	
	visibility:hidden;
	 overflow:hidden;
	
	background-repeat:no-repeat;
	background-position:center center;
	background-size:cover;
}
	.background.cafe{
		background-color:#987071;
    }
    .background.club{
		background-color:#a3367f
	}
	.background.fitness{
		background-color:#79728b;
	}
	.background.lady{
		background-color:#a6160e;
	}
	.background.resto{
		background-color:#712912;
	}
/* Классы анимации фона типа "Room" */
	.rotateRoomLeftOut {
		-webkit-transform-origin: 100% 50%;
		-webkit-animation: rotateRoomLeftOut 4s both ease;
		-moz-transform-origin: 100% 50%;
		-moz-animation: rotateRoomLeftOut 4s both ease;
		transform-origin: 100% 50%;
		animation: rotateRoomLeftOut 4s both ease;
	}
	.rotateRoomLeftIn {
		-webkit-transform-origin: 0% 50%;
		-webkit-animation: rotateRoomLeftIn 4s both ease;
		-moz-transform-origin: 0% 50%;
		-moz-animation: rotateRoomLeftIn 4s both ease;
		transform-origin: 0% 50%;
		animation: rotateRoomLeftIn 4s both ease;
	}
/* Описание анимаций */

	@-webkit-keyframes rotateRoomLeftOut {
		to { opacity: .3; -webkit-transform: translateX(-100%) rotateY(90deg); }
	}
	@-moz-keyframes rotateRoomLeftOut {
		to { opacity: .3; -moz-transform: translateX(-100%) rotateY(90deg); }
	}
	@keyframes rotateRoomLeftOut {
		to { opacity: .3; transform: translateX(-100%) rotateY(90deg); }
	}

	@-webkit-keyframes rotateRoomLeftIn {
		from { opacity: .3; -webkit-transform: translateX(100%) rotateY(-90deg); }
	}
	@-moz-keyframes rotateRoomLeftIn {
		from { opacity: .3; -moz-transform: translateX(100%) rotateY(-90deg); }
	}
	@keyframes rotateRoomLeftIn {
		from { opacity: .3; transform: translateX(100%) rotateY(-90deg); }
	}
.areas{
    list-style:none;
    position:relative;z-index:1000;
}
.areas li a{
    display:block;
    width:20px;
    height:20px;
    background:yellow;
    margin:5px;
    color:black;
    
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div class="cont">
		<div id="bg-club" class="background club"></div>
		<div id="bg-cafe" class="background cafe active"></div>
		<div id="bg-fitness" class="background fitness"></div>
		<div id="bg-resto" class="background resto"></div>
		<div id="bg-lady" class="background lady"></div>
	</div>

<ul class="areas text-center content-section">
		<li><a href="#club" class="club" data-target="[data-tab='club']" data-bg="club" data-toggle="tab">1</a>
		</li><li class="active"><a href="#cafe" class="cafe" data-target="[data-tab='cafe']" data-bg="cafe" data-toggle="tab">2</a>
		</li><li><a href="#fitness" class="fitness" data-target="[data-tab='fitness']" data-bg="fitness" data-toggle="tab">3</a>
		</li><li><a href="#resto" class="resto" data-target="[data-tab='resto']" data-bg="resto" data-toggle="tab">4</a>
		</li><li><a href="#lady" class="lady" data-target="[data-tab='lady']" data-bg="lady" data-toggle="tab">5</a>
		</li>
	</ul>

仍然期待这种行为背后的原因。

Answer 1

我相信它闪烁的原因是因为 Mozilla 检测到该对象不在视野范围内。如果你的视角是 1000px，并且宽度为 1100px 的东西旋转，那么元素的边缘会从你身后经过并超出视野，mozilla 可能会确定为“不渲染”

我可以提供的唯一解决方案是将视角设置为 100vw 之类的值，以确保您的视角始终与屏幕的宽度一样远