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HTML 

              
                <div class="wrapper">
  <div id="skywalker">
    <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 861 1000">
      <defs>
        <mask id="mask--molten-cracks">
          <image id="cracks--molten-mask" x="-315" y="-315" width="630" height="630" xlink:href="https://s3-us-west-2.amazonaws.com/s.cdpn.io/106403/rise-of-skywalker--cracks--molten-mask.png" transform="translate(465 340)"/>
        </mask>
        
        <mask id="mask--cracks">
          <image id="cracks--mask" width="512" height="560" xlink:href="https://s3-us-west-2.amazonaws.com/s.cdpn.io/106403/rise-of-skywalker--dark--mask.gif" transform="translate(208 32)"/>
        </mask>
        
        <mask id="mask--sith-lightsaber-turbulence">
          <rect width="100%" height="100%" fill="black"/>
          <image width="124" height="175" xlink:href="https://s3-us-west-2.amazonaws.com/s.cdpn.io/106403/lightsaber--turbulence--mask.jpg" transform="translate(435 763)"/>
        </mask>
        
        <filter id="filter--turbulence" filterUnits="objectBoundingBox" x="0" y="0" width="100%" height="100%">
          <feTurbulence id="turbulence" type="fractalNoise" numOctaves="4" seed="20"></feTurbulence>
          <feDisplacementMap xChannelSelector="R" yChannelSelector="G" scale="5" in="SourceGraphic"></feDisplacementMap>
        </filter>
      </defs>

      <image id="dark--no-cracks" width="861" height="1000" xlink:href="https://s3-us-west-2.amazonaws.com/s.cdpn.io/106403/rise-of-skywalker--dark.jpg"/>

      <g mask="url(#mask--molten-cracks)">
        <g mask="url(#mask--cracks)">
          <image id="cracks--dark" width="504" height="550" xlink:href="https://s3-us-west-2.amazonaws.com/s.cdpn.io/106403/rise-of-skywalker--dark--cracks.jpg" transform="translate(213 39)"/>
        </g>
      </g>

      <g class="bright">
        <image id="bright--no-cracks" width="861" height="1000" xlink:href="https://s3-us-west-2.amazonaws.com/s.cdpn.io/106403/rise-of-skywalker--bright.jpg"/>

        <g mask="url(#mask--molten-cracks)">
          <g mask="url(#mask--cracks)">
            <image id="cracks--bright" width="504" height="550" xlink:href="https://s3-us-west-2.amazonaws.com/s.cdpn.io/106403/rise-of-skywalker--bright--cracks.jpg" transform="translate(213 39)"/>
          </g>
        </g>
      </g>
      
      <g>
        <image id="lightsaber-glow--jedi--highlights" width="345" height="277" xlink:href="https://s3-us-west-2.amazonaws.com/s.cdpn.io/106403/rise-of-skywalker--lightsaber-highlights.jpg" transform="translate(245 239)"/>

        <image id="lightsaber-glow--jedi" width="425" height="181" xlink:href="https://s3-us-west-2.amazonaws.com/s.cdpn.io/106403/lightsaber-glow--jedi.gif" transform="translate(113 126)"/>
      </g>
      
      <g>
        <image id="lightsaber-glow--sith--highlights" width="154" height="232" xlink:href="https://s3-us-west-2.amazonaws.com/s.cdpn.io/106403/rise-of-skywalker--lightsaber-glow--sith--highlights.jpg" transform="translate(430 731)"/>
        
        <image id="lightsaber-glow--sith" width="124" height="175" xlink:href="https://s3-us-west-2.amazonaws.com/s.cdpn.io/106403/lightsaber-glow--sith.gif" transform="translate(435 763)"/>
      </g>
      
      <!-- mask & filter combo doesn't work in SVG on single element. Seems to work better with filter in CSS -->
      <g mask="url(#mask--sith-lightsaber-turbulence)">
        <image id="lightsaber-glow--sith--turbulence" width="154" height="232" xlink:href="https://s3-us-west-2.amazonaws.com/s.cdpn.io/106403/rise-of-skywalker--lightsaber-glow--sith--highlights.jpg" transform="translate(430 731)"/>
      </g>
    </svg>

    <div id="lightspeed-mask">
      <div id="space"></div>
    </div>

    <div id="embers">
      <img src="https://s3-us-west-2.amazonaws.com/s.cdpn.io/106403/rise-of-skywalker--sparks.webp" width="100%" height="100%" alt="">
    </div>
  </div>
</div>
!

CSS 

              
                body {
  background-color: black;
  position: relative;
  --innerVH: 100vh;
  height: var(--innerVH);
}

.wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  display: grid;
  place-items: stretch center;
}

#skywalker {
  position: relative;
  height: 100%;
  overflow: hidden;
}

svg {
  display: block;
  height: 100%;
}

image {
  image-rendering: crisp-edges;
}

#bright--no-cracks,
.bright {
  animation: darkside 20s infinite alternate;
}



#lightsaber-glow--jedi--highlights,
#lightsaber-glow--jedi {
  animation: lightside 20s infinite alternate;
}

#lightsaber-glow--jedi--highlights {
  mix-blend-mode: lighten;
}

#lightsaber-glow--jedi {
  mix-blend-mode: screen;
}



#lightsaber-glow--sith {
  mix-blend-mode: screen;
}

#lightsaber-glow--sith--highlights {
  mix-blend-mode: lighten;
}

#lightsaber-glow--sith,
#lightsaber-glow--sith--highlights {
  animation: darkside 1s infinite alternate;
}

#lightsaber-glow--sith--turbulence {
  filter: url(#filter--turbulence);
  mix-blend-mode: lighten;
}

@keyframes lightside {
  0% { opacity: 0.3 }
  10% { opacity: 0.6 }
  20% { opacity: 0.4 }
  30% { opacity: 1 }
  40% { opacity: 0.3 }
  50% { opacity: 0.6 }
  60% { opacity: 0.4 }
  70% { opacity: 0.6 }
  80% { opacity: 1 }
  90% { opacity: 0.1 }
  100% { opacity: 0.3 }
}

@keyframes darkside {
  0% { opacity: .3 }
  5% { opacity: .8 }
  15% { opacity: .4 }
  20% { opacity: 1 }
  25% { opacity: .3 }
  35% { opacity: .8 }
  45% { opacity: .2 }
  50% { opacity: 1 }
  55% { opacity: 0.3 }
  60% { opacity: 0.6 }
  65% { opacity: 0.4 }
  70% { opacity: 0.2 }
  80% { opacity: 0.6 }
  85% { opacity: 0.8 }
  90% { opacity: 0.4 }
  95% { opacity: 0.6 }
  100% { opacity: 0.3 }
}




#lightspeed-mask {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  mask-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/106403/rise-of-skywalker--stars--alpha-mask.png);
  mask-size: 100% 100%;
  mix-blend-mode: screen;
  
  display: grid;
  
  &:after {
    display: block;
    content: '';
    grid-area: 1 / 1;
    background-image: linear-gradient(to right, #008aff 30%, #e10019);
    mix-blend-mode: overlay;
  }
}

#space {
  background-color: black;
  grid-area: 1 / 1;
  width: 100%;
  height: 100%;
  
  overflow: hidden;
  
  display: grid;
  place-items: center center;
  
  --perspective: 100px;
  perspective: var(--perspective);
  transform-style: preserve-3d;
}

#space time {
  grid-area: 1 / 1;
  transform-origin: 50% 0%;
  background-color: white;
  box-shadow: 0 0 .5rem white, 0 0 1rem white, 0 0 1rem white;
  
  @supports (-moz-transition: all) {
    // Firefox can't hang...
    box-shadow: 0 0 .5rem white;
  }
}




#embers {
  position: absolute;
  top: 80%;
  left: 50%;
  height: 20%;
  width: 40%;
  mask-image: url(https://s3-us-west-2.amazonaws.com/s.cdpn.io/106403/rise-of-skywalker--sparks--alpha-mask.png);
  mask-size: 100% 100%;
  mix-blend-mode: screen;

  img {
    transform: rotate(180deg);
  }
}
!

JS 

              
                document.body.style.setProperty('--innerVH', `${window.innerHeight || window.visualViewport.height}px`);



const space = document.getElementById("space"),
      spaceWidth = space.scrollWidth,
      spaceHeight = space.scrollHeight,
      perspective = 100;

space.style.setProperty(`--perspective`, `${perspective}px`);

function makeStar() {
  const star = document.createElement(`time`),
        starWidth = gsap.utils.random(1, 2, 1),
        starHeight = starWidth * gsap.utils.random(20, 40, 1),
        randomRotation = gsap.utils.random(-120, 120, 1),
        scaleModifier = Math.random(),
        visibleRangeMaximum = (spaceWidth - spaceHeight > 0 ? spaceWidth : spaceHeight) / 2;

  gsap.set(star, {
    width: `${starWidth}px`,
    height: `${starHeight}px`,
    transform: `
      translateY(${starHeight / 2}px)
      rotate(${randomRotation}deg)
      rotateX(90deg)
      translateZ(0px)
      scaleX(${scaleModifier})
    `,
  });
  
  gsap.to(star, {
    duration: "random(5, 20)",
    transform: `
      translateY(${starHeight / 2}px)
      rotate(${randomRotation}deg)
      rotateX(90deg)
      translateZ(${perspective + visibleRangeMaximum}px)
      scaleX(${scaleModifier})
    `,
    repeat: -1,
    ease: `none`,
  }).progress(Math.random());
  
  space.appendChild(star);
}

for (let i = 0; i < 200; i++) {
   makeStar();
}



const moltenCracksMask = document.querySelector(`#cracks--molten-mask`);

gsap.to(moltenCracksMask, {
  duration: 20,
  repeat: -1,
  ease: `none`,
  attr: {
    transform: `translate(465 340)  rotate(360 0 0) `
  },
  force3D: true,
})



const elTurbulence = document.querySelector(`#turbulence`);

gsap.to(elTurbulence, {
  duration: 4,
  repeat: -1,
  ease: `none`,
  onUpdate: function() {
    const baseFrequencyX = this.progress() * .004 + .02,
          baseFrequencyY = this.progress() * .04 + .01;
    
    elTurbulence.setAttribute(`baseFrequency`, `${baseFrequencyX} ${baseFrequencyY}`);
  }
})
!
999px

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