CodePen Home ThreeJS 'Portal Planes' with Matcaps

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const sun = new THREE.AmbientLight(0xffffff, .5);
scene.add(sun);

const planeGeometry = new THREE.PlaneGeometry(settings.boxDimensions.w, settings.boxDimensions.h);

const renderer = new THREE.WebGLRenderer( { antialias: true } );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.setAnimationLoop( animation );
document.body.appendChild( renderer.domElement );

function RoundedPortalPhotoPlane(geometry, photoTexture) {
  const material = new THREE.MeshMatcapMaterial({
    matcap: photoTexture,
    transparent: true,
  })

material.onBeforeCompile = (shader) => {
    shader.vertexShader = shader.vertexShader.replace(
      '#include <common>',
      `
          #include <common>
          varying vec4 vPosition;
          varying vec2 vUv;
      `
  );
    shader.vertexShader = shader.vertexShader.replace(
        '#include <fog_vertex>',
        `
            #include <fog_vertex>
            vPosition = mvPosition;
            vUv = uv;
        `
    );
    shader.fragmentShader = shader.fragmentShader.replace(
      `#include <common>`,
      `
      #include <common>
      varying vec4 vPosition;
      varying vec2 vUv;
      float roundedBoxSDF(vec2 CenterPosition, vec2 Size, float Radius) {
          return length(max(abs(CenterPosition)-Size+Radius,0.0))-Radius;
        }
      `
    );
    shader.fragmentShader = shader.fragmentShader.replace(
      `#include <dithering_fragment>`,
      `
      #include <dithering_fragment>

// The pixel space scale of the rectangle.
      vec2 size = vec2(1.0, 1.0);
      // How soft the edges should be (in pixels). Higher values could be used to simulate a drop shadow.
      float edgeSoftness  = 0.001;
      // The radius of the corners (in pixels).
      float radius = 0.08;
      // Calculate distance to edge.
      float distance  = roundedBoxSDF(vUv.xy - (size/2.0), size/2.0, radius);
      // Smooth the result (free antialiasing).
      float smoothedAlpha =  1.0-smoothstep(0.0, edgeSoftness * 2.0,distance);
      // Return the resultant shape.
      //vec4 quadColor = mix(vec4(1.0, 1.0, 1.0, 1.0), vec4(0.0, 0.2, 1.0, smoothedAlpha), smoothedAlpha);
      gl_FragColor = vec4(outgoingLight, smoothedAlpha);
      `
    );
        console.log(shader.fragmentShader);

};
  const plane = new THREE.Mesh(
    geometry,
    material
  );

return plane;
}

// planes
const planeGroup = new THREE.Group();

const photoPlane01 = new RoundedPortalPhotoPlane(
  planeGeometry,
  photoTexture02
);
photoPlane01.position.set(-1, 0, 1);
photoPlane01.rotation.y = Math.PI * 0.1;
photoPlane01.name = 'plane1';
planeGroup.add(photoPlane01);

const photoPlane02 = new RoundedPortalPhotoPlane(
  planeGeometry,
  photoTexture
);

photoPlane02.position.set(0, 0, 0.5);
photoPlane02.name = 'plane2';
planeGroup.add(photoPlane02);

const photoPlane03 = new RoundedPortalPhotoPlane(
  planeGeometry,
  photoTexture03
);
photoPlane03.position.set(1, 0, 1);
photoPlane03.rotation.y = Math.PI * -0.1;
photoPlane03.name = 'plane3';
planeGroup.add(photoPlane03);
scene.add(planeGroup);

const mouse = new THREE.Vector2();
let xParallaxFactor = -0.3;
let yParallaxFactor = 0.3;
//mouse events
window.addEventListener('mousemove', (event) => {
  mouse.x = event.clientX / settings.sizes.width * 2 - 1; //could also do it this way: map(event.clientX, 0, sizes.width, -1, 1)
  mouse.y = - (event.clientY / settings.sizes.height) * 2 + 1; //could also do it this way: map(event.clientY, 0, sizes.height, 1, -1)
});

// animation
const clock = new THREE.Clock()
let previousTime = 0;

function animation( time ) {

const elapsedTime = clock.getElapsedTime()
  const deltaTime = elapsedTime - previousTime;
  previousTime = elapsedTime;

const parallaxX = mouse.x * xParallaxFactor;
  const parallaxY = mouse.y * yParallaxFactor;
    planeGroup.rotation.y += (parallaxX - planeGroup.rotation.y) * 3 * deltaTime;
    planeGroup.rotation.x += (parallaxY - planeGroup.rotation.x) * 3 * deltaTime;

renderer.render( scene, camera );

}

CodePen Home ThreeJS 'Portal Planes' with Matcaps

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