Tips for resolving a fuzzy background image while using transform scale

Question

Tips for resolving a fuzzy background image while using transform scale

Within my program, users are able to reduce the size of a specific component. I utilize transform: scale() in order to accomplish this.

I have found that I am able to produce clearer images by incorporating the following:

   -webkit-backface-visibility: hidden;
    -ms-transform: translateZ(0);
    -webkit-transform: translateZ(0);
    transform: translateZ(0);

Unfortunately, this method does not work for divs containing background-images. These images continue to appear blurry.

Is there a solution to this issue? (Please refrain from suggesting that I avoid using scale)

css css-transforms

Answer 1

Answer №1

When using transforms, you may encounter blurry images during transitions or rescaling. However, there is a workaround for this issue. The blur effect occurs because Webkit renders elements as images during animated transforms, making them appear blurred until the transition is complete.

To address this problem, consider sizing the element to its largest required dimensions initially and then scaling it down for display. For example, instead of directly applying "scale(2,2)" when hovering to double the size, start with "size:200%, scale:(.5,.5)" and switch to "scale(1,1)" on hover.

One possible workaround solution is demonstrated below:

.normal {
  width: 200px;
  height: 200px;
  margin: 1em auto;
  transition: all 1s linear;
}

.normal:hover {
  transform: scale(2, 2);
}

.prescaled {
  width: 400px;
  height: 400px;
  margin: 1em auto;
  transition: all 1s linear;
  transform: scale(.5, .5);
  // adjust positioning after scaling
  position: relative;
  top: -100px;
}

.prescaled:hover {
  transform: scale(1, 1);
}

This approach provides a starting point for implementing the workaround. Feel free to customize it according to your needs. Let me know if you find success with this method.

Answer 2

When using transforms, you may encounter blurry images during transitions or rescaling. However, there is a workaround for this issue. The blur effect occurs because Webkit renders elements as images during animated transforms, making them appear blurred until the transition is complete.

To address this problem, consider sizing the element to its largest required dimensions initially and then scaling it down for display. For example, instead of directly applying "scale(2,2)" when hovering to double the size, start with "size:200%, scale:(.5,.5)" and switch to "scale(1,1)" on hover.

One possible workaround solution is demonstrated below:

.normal {
  width: 200px;
  height: 200px;
  margin: 1em auto;
  transition: all 1s linear;
}

.normal:hover {
  transform: scale(2, 2);
}

.prescaled {
  width: 400px;
  height: 400px;
  margin: 1em auto;
  transition: all 1s linear;
  transform: scale(.5, .5);
  // adjust positioning after scaling
  position: relative;
  top: -100px;
}

.prescaled:hover {
  transform: scale(1, 1);
}

This approach provides a starting point for implementing the workaround. Feel free to customize it according to your needs. Let me know if you find success with this method.

Tips for resolving a fuzzy background image while using transform scale

Answer №1

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