In the MDN animation documentation, it mentions a type of animation known as "discrete". Can you explain what this term signifies?
In the MDN animation documentation, it mentions a type of animation known as "discrete". Can you explain what this term signifies?
Discrete animations move directly from one keyframe to the next without any blending.
Imagine it as a simple image transition - one frame followed by another. Blending, or interpolation, smooths out the movement between these main frames (using mathematical formulas in computer graphics).
In traditional hand-drawn animation, the lead artist would create the keyframes, while a secondary artist would create the intermediary frames.
Therefore, discrete animation is akin to hand-drawn animation minus the intermediate frames typically drawn by an assistant.
This indicates that the property can be used for animations, but it will instantly switch states when the value changes without any smooth transition between values.
On the other hand, the MDN documentation describes another type of animation called "Not animatable", where the property cannot smoothly transition between different values even when used in animations.
For example, imagine you have an emoji that you want to make disappear after one second of hovering over it.
Using visibility: hidden; will achieve the desired effect.
.ball {
visibility: visible;
}
.ball:hover {
animation: hide 1s forwards;
}
@keyframes hide {
to {
visibility: hidden;
/* display: none; */
translate: 100px;
}
}<div class="ball">⚽</div>However, using display: none; in this scenario does not work as expected.
.ball {
display: block;
}
.ball:hover {
animation: hide 1s forwards;
}
@keyframes hide {
to {
/* visibility: hidden; */
display: none;
translate: 100px;
}
}<div class="ball">⚽</div>This discrepancy is due to the nature of the
<a href="https://developer.mozilla.org/en-US/docs/Web/CSS/visibility#formal_definition" rel="nofollow noreferrer">visibility</a><a href="https://developer.mozilla.org/en-US/docs/Web/CSS/display#formal_definition" rel="nofollow noreferrer">display</a>Update: It's worth noting that there may be changes coming soon regarding the transitionability of the display property based on the recent announcement from Webkit. Even though changes are expected, the core concept remains the same.
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