Liquid Hover Effect

Sam_Schwinghamer1 · July 12, 2021, 8:35pm

Hey guys! I’m looking to implement a cool hover effect on a new site and hoping to follow this tutorial:

All makes sense aside from where I would host the hover-effect.umd.js

I’m new to these sort of effects so might be super obvious, please help!

Here is my site Read-Only: LINK
(how to share your site Read-Only link)

Smith.S · July 12, 2021, 10:14pm

Here you are.

github.com

codegridweb/Image-Hover-Liquid-Distortion-Effect-ThreeJS-TweenMax/blob/master/hover-effect.umd.js

!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t(require("three"),require("gsap/TweenMax")):"function"==typeof define&&define.amd?define(["three","gsap/TweenMax"],t):e.hoverEffect=t(e.THREE,e.TweenMax)}(this,function(e,t){return t=t&&t.hasOwnProperty("default")?t.default:t,function(n){function i(){for(var e=arguments,t=0;t<arguments.length;t++)if(void 0!==e[t])return e[t]}console.log("%c Hover effect by Robin Delaporte: https://github.com/robin-dela/hover-effect ","color: #bada55; font-size: 0.8rem");var r=n.parent,o=n.displacementImage,a=n.image1,s=n.image2,f=i(n.imagesRatio,1),d=i(n.intensity1,n.intensity,1),l=i(n.intensity2,n.intensity,1),u=i(n.angle,Math.PI/4),v=i(n.angle1,u),m=i(n.angle2,3*-u),c=i(n.speedIn,n.speed,1.6),p=i(n.speedOut,n.speed,1.2),g=i(n.hover,!0),h=i(n.easing,Expo.easeOut),y=i(n.video,!1);if(r)if(a&&s&&o){var x=new e.Scene,F=new e.OrthographicCamera(r.offsetWidth/-2,r.offsetWidth/2,r.offsetHeight/2,r.offsetHeight/-2,1,1e3);F.position.z=1;var w=new e.WebGLRenderer({antialias:!1,alpha:!0});w.setPixelRatio(2),w.setClearColor(16777215,0),w.setSize(r.offsetWidth,r.offsetHeight),r.appendChild(w.domElement);var L=function(){w.render(x,F)},H=new e.TextureLoader;H.crossOrigin="";var E,W,V=H.load(o,L);if(V.magFilter=V.minFilter=e.LinearFilter,y){var M=function(){requestAnimationFrame(M),w.render(x,F)};M(),(y=document.createElement("video")).autoplay=!0,y.loop=!0,y.src=a,y.load();var P=document.createElement("video");P.autoplay=!0,P.loop=!0,P.src=s,P.load();var R=new e.VideoTexture(y),T=new e.VideoTexture(P);R.magFilter=T.magFilter=e.LinearFilter,R.minFilter=T.minFilter=e.LinearFilter,P.addEventListener("loadeddata",function(){P.play(),(T=new e.VideoTexture(P)).magFilter=e.LinearFilter,T.minFilter=e.LinearFilter,C.uniforms.texture2.value=T},!1),y.addEventListener("loadeddata",function(){y.play(),(R=new e.VideoTexture(y)).magFilter=e.LinearFilter,R.minFilter=e.LinearFilter,C.uniforms.texture1.value=R},!1)}else R=H.load(a,L),T=H.load(s,L),R.magFilter=T.magFilter=e.LinearFilter,R.minFilter=T.minFilter=e.LinearFilter;var U=f;r.offsetHeight/r.offsetWidth<U?(E=1,W=r.offsetHeight/r.offsetWidth/U):(E=r.offsetWidth/r.offsetHeight*U,W=1);var C=new e.ShaderMaterial({uniforms:{intensity1:{type:"f",value:d},intensity2:{type:"f",value:l},dispFactor:{type:"f",value:0},angle1:{type:"f",value:v},angle2:{type:"f",value:m},texture1:{type:"t",value:R},texture2:{type:"t",value:T},disp:{type:"t",value:V},res:{type:"vec4",value:new e.Vector4(r.offsetWidth,r.offsetHeight,E,W)},dpr:{type:"f",value:window.devicePixelRatio}},vertexShader:"\nvarying vec2 vUv;\nvoid main() {\n  vUv = uv;\n  gl_Position = projectionMatrix * modelViewMatrix * vec4( position, 1.0 );\n}\n",fragmentShader:"\nvarying vec2 vUv;\n\nuniform float dispFactor;\nuniform float dpr;\nuniform sampler2D disp;\n\nuniform sampler2D texture1;\nuniform sampler2D texture2;\nuniform float angle1;\nuniform float angle2;\nuniform float intensity1;\nuniform float intensity2;\nuniform vec4 res;\nuniform vec2 parent;\n\nmat2 getRotM(float angle) {\n  float s = sin(angle);\n  float c = cos(angle);\n  return mat2(c, -s, s, c);\n}\n\nvoid main() {\n  vec4 disp = texture2D(disp, vUv);\n  vec2 dispVec = vec2(disp.r, disp.g);\n\n  vec2 uv = 0.5 * gl_FragCoord.xy / (res.xy) ;\n  vec2 myUV = (uv - vec2(0.5))*res.zw + vec2(0.5);\n\n\n  vec2 distortedPosition1 = myUV + getRotM(angle1) * dispVec * intensity1 * dispFactor;\n  vec2 distortedPosition2 = myUV + getRotM(angle2) * dispVec * intensity2 * (1.0 - dispFactor);\n  vec4 _texture1 = texture2D(texture1, distortedPosition1);\n  vec4 _texture2 = texture2D(texture2, distortedPosition2);\n  gl_FragColor = mix(_texture1, _texture2, dispFactor);\n}\n",transparent:!0,opacity:1}),b=new e.PlaneBufferGeometry(r.offsetWidth,r.offsetHeight,1),D=new e.Mesh(b,C);x.add(D),g&&(r.addEventListener("mouseenter",_),r.addEventListener("touchstart",_),r.addEventListener("mouseleave",z),r.addEventListener("touchend",z)),window.addEventListener("resize",function(t){r.offsetHeight/r.offsetWidth<U?(E=1,W=r.offsetHeight/r.offsetWidth/U):(E=r.offsetWidth/r.offsetHeight*U,W=1),D.material.uniforms.res.value=new e.Vector4(r.offsetWidth,r.offsetHeight,E,W),w.setSize(r.offsetWidth,r.offsetHeight),L()}),this.next=_,this.previous=z}else console.warn("One or more images are missing");else console.warn("Parent missing");function _(){t.to(C.uniforms.dispFactor,c,{value:1,ease:h,onUpdate:L,onComplete:L})}function z(){t.to(C.uniforms.dispFactor,p,{value:0,ease:h,onUpdate:L,onComplete:L})}}});
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