How to Rotate Clip Path without rotating image?

Question

I have an image with CSS property clip-path. I have added animation to rotate the clip path. I want to only rotate clip-path, not the image. From below code, you can get an idea of what I want to achieve. I did this to give you an idea of what I want to achieve. The problem with my code is that it takes a lot of time of manually set clip-path points on each keyframe. So Is there any short method to achieve the below code result without changing the points manually on keyframes? I want it to be smooth, which is pretty hard to set with manually setting the points. (Keep in mind, I don't need that last animation which makes the image invisible, I am unable to figure out why it's happening.

#profile-img {
    width: 15%;
    margin: 5%;
    -webkit-clip-path: polygon(20% 0%, 0% 20%, 30% 50%, 0% 80%, 20% 100%, 50% 70%, 80% 100%, 100% 80%, 70% 50%, 100% 20%, 80% 0%, 50% 30%);
    clip-path: polygon(20% 0%, 0% 20%, 30% 50%, 0% 80%, 20% 100%, 50% 70%, 80% 100%, 100% 80%, 70% 50%, 100% 20%, 80% 0%, 50% 30%);
    animation: clipRotateAnim 2s linear infinite;
}

@keyframes clipRotateAnim {
    0% {
        -webkit-clip-path: polygon(20% 0%, 0% 20%, 30% 50%, 0% 80%, 20% 100%, 50% 70%, 80% 100%, 100% 80%, 70% 50%, 100% 20%, 80% 0%, 50% 30%);
        clip-path: polygon(20% 0%, 0% 20%, 30% 50%, 0% 80%, 20% 100%, 50% 70%, 80% 100%, 100% 80%, 70% 50%, 100% 20%, 80% 0%, 50% 30%);
    }
    
    25% {
        -webkit-clip-path: polygon(100% 23%, 80% 0, 47% 34%, 16% 0, 0 19%, 26% 53%, 0 78%, 19% 100%, 51% 71%, 76% 100%, 100% 81%, 68% 51%);
        clip-path: polygon(100% 23%, 80% 0, 47% 34%, 16% 0, 0 19%, 26% 53%, 0 78%, 19% 100%, 51% 71%, 76% 100%, 100% 81%, 68% 51%);
    }
    50% {
        -webkit-clip-path: polygon(84% 100%, 100% 75%, 64% 56%, 100% 13%, 81% 0, 49% 28%, 22% 0, 0 29%, 28% 57%, 0 83%, 21% 100%, 42% 74%);
        clip-path: polygon(84% 100%, 100% 75%, 64% 56%, 100% 13%, 81% 0, 49% 28%, 22% 0, 0 29%, 28% 57%, 0 83%, 21% 100%, 42% 74%);
    }
    100% {
        -webkit-clip-path: polygon(27% 0, 0 19%, 29% 49%, 0 79%, 19% 100%, 45% 76%, 84% 100%, 100% 80%, 69% 56%, 100% 18%, 80% 0, 47% 33%);
        clip-path: polygon(27% 0, 0 19%, 29% 49%, 0 79%, 19% 100%, 45% 76%, 84% 100%, 100% 80%, 69% 56%, 100% 18%, 80% 0, 47% 33%);

    }
 
}

<img id="profile-img" src="https://images.pexels.com/photos/1025804/pexels-photo-1025804.jpeg?auto=compress&cs=tinysrgb&h=350">

Answer 1

Use the image as a background of a pseudo element and rotate it in the opposite direction:

.image {
  width: 200px;
  height: 200px;
  margin: 20px;
  clip-path: polygon(20% 0%, 0% 20%, 30% 50%, 0% 80%, 20% 100%, 50% 70%, 80% 100%, 100% 80%, 70% 50%, 100% 20%, 80% 0%, 50% 30%);
  animation: clipRotateAnim 2s linear infinite;
  position: relative;
  overflow: hidden;
}

.image:before {
  content: "";
  position: absolute;
  top: -10%;
  bottom: -10%;
  left: -10%;
  right: -10%;
  background: var(--i) center/cover;
  animation: inherit ;
  animation-direction:reverse;
}

@keyframes clipRotateAnim {
  to {
    transform: rotate(360deg)
  }
}

<div class="image" style="--i:url(https://images.pexels.com/photos/1025804/pexels-photo-1025804.jpeg?auto=compress&cs=tinysrgb&h=350)">
</div>

Another idea for better performance is to use background to create another layer above the image that you rotate.

.image {
   width:200px;
   height:200px;
   margin: 20px;
   position:relative;
   background:var(--i) center/cover;
   overflow:hidden;
}
.image:before {
  content:"";
  position:absolute;
  top:5px;
  bottom:5px;
  left:5px;
  right:5px;
  box-shadow:0 0 0 200px #fff;
  background:
    linear-gradient(#fff,#fff) top left,
    linear-gradient(#fff,#fff) top right,
    linear-gradient(#fff,#fff) bottom left,
    linear-gradient(#fff,#fff) bottom right;
  background-size:calc(50% - 30px) calc(50% - 30px);
  background-repeat:no-repeat;
  animation: clipRotateAnim 2s linear infinite;
}
@keyframes clipRotateAnim{
  to{transform:rotate(360deg)}
}

<div class="image"  style="--i:url(https://images.pexels.com/photos/1025804/pexels-photo-1025804.jpeg?auto=compress&cs=tinysrgb&h=350)">
  
</div>