feat(): Adding card background

Author: ar1603

src/components/SpotlightCard/RevealEffect.tsx

@@ -0,0 +1,308 @@
+/* eslint-disable react/no-unknown-property */
+import { Canvas, useFrame, useThree } from '@react-three/fiber';
+import React, { useMemo, useRef } from 'react';
+import * as THREE from 'three';
+
+export const CanvasRevealEffect = ({
+  animationSpeed = 0.4,
+  opacities = [0.3, 0.3, 0.3, 0.5, 0.5, 0.5, 0.8, 0.8, 0.8, 1],
+  colors = [[0, 255, 255]],
+  containerClassName,
+  dotSize,
+  showGradient = true,
+}: {
+  /**
+   * 0.1 - slower
+   * 1.0 - faster
+   */
+  animationSpeed?: number;
+  opacities?: number[];
+  colors?: number[][];
+  containerClassName?: string;
+  dotSize?: number;
+  showGradient?: boolean;
+}) => {
+  return (
+    <div className={'z-0 h-full relative w-full' + containerClassName}>
+      <div className="h-full w-full">
+        <DotMatrix
+          colors={colors ?? [[0, 255, 255]]}
+          dotSize={dotSize ?? 3}
+          opacities={
+            opacities ?? [0.3, 0.3, 0.3, 0.5, 0.5, 0.5, 0.8, 0.8, 0.8, 1]
+          }
+          shader={`
+              float animation_speed_factor = ${animationSpeed.toFixed(1)};
+              float intro_offset = distance(u_resolution / 2.0 / u_total_size, st2) * 0.01 + (random(st2) * 0.15);
+              opacity *= step(intro_offset, u_time * animation_speed_factor);
+              opacity *= clamp((1.0 - step(intro_offset + 0.1, u_time * animation_speed_factor)) * 1.25, 1.0, 1.25);
+            `}
+          center={['x', 'y']}
+        />
+      </div>
+      {showGradient && (
+        <div className="absolute inset-0 bg-gradient-to-t from-gray-950 to-[84%]" />
+      )}
+    </div>
+  );
+};
+
+interface DotMatrixProps {
+  colors?: number[][];
+  opacities?: number[];
+  totalSize?: number;
+  dotSize?: number;
+  shader?: string;
+  center?: ('x' | 'y')[];
+}
+
+const DotMatrix: React.FC<DotMatrixProps> = ({
+  colors = [[0, 0, 0]],
+  opacities = [0.04, 0.04, 0.04, 0.04, 0.04, 0.08, 0.08, 0.08, 0.08, 0.14],
+  totalSize = 4,
+  dotSize = 2,
+  shader = '',
+  center = ['x', 'y'],
+}) => {
+  const uniforms = React.useMemo(() => {
+    let colorsArray = [
+      colors[0],
+      colors[0],
+      colors[0],
+      colors[0],
+      colors[0],
+      colors[0],
+    ];
+    if (colors.length === 2) {
+      colorsArray = [
+        colors[0],
+        colors[0],
+        colors[0],
+        colors[1],
+        colors[1],
+        colors[1],
+      ];
+    } else if (colors.length === 3) {
+      colorsArray = [
+        colors[0],
+        colors[0],
+        colors[1],
+        colors[1],
+        colors[2],
+        colors[2],
+      ];
+    }
+
+    return {
+      u_colors: {
+        value: colorsArray.map((color) => [
+          color[0] / 255,
+          color[1] / 255,
+          color[2] / 255,
+        ]),
+        type: 'uniform3fv',
+      },
+      u_opacities: {
+        value: opacities,
+        type: 'uniform1fv',
+      },
+      u_total_size: {
+        value: totalSize,
+        type: 'uniform1f',
+      },
+      u_dot_size: {
+        value: dotSize,
+        type: 'uniform1f',
+      },
+    };
+  }, [colors, opacities, totalSize, dotSize]);
+
+  return (
+    <Shader
+      source={`
+        precision mediump float;
+        in vec2 fragCoord;
+
+        uniform float u_time;
+        uniform float u_opacities[10];
+        uniform vec3 u_colors[6];
+        uniform float u_total_size;
+        uniform float u_dot_size;
+        uniform vec2 u_resolution;
+        out vec4 fragColor;
+        float PHI = 1.61803398874989484820459;
+        float random(vec2 xy) {
+            return fract(tan(distance(xy * PHI, xy) * 0.5) * xy.x);
+        }
+        float map(float value, float min1, float max1, float min2, float max2) {
+            return min2 + (value - min1) * (max2 - min2) / (max1 - min1);
+        }
+        void main() {
+            vec2 st = fragCoord.xy;
+            ${
+              center.includes('x')
+                ? 'st.x -= abs(floor((mod(u_resolution.x, u_total_size) - u_dot_size) * 0.5));'
+                : ''
+            }
+            ${
+              center.includes('y')
+                ? 'st.y -= abs(floor((mod(u_resolution.y, u_total_size) - u_dot_size) * 0.5));'
+                : ''
+            }
+      float opacity = step(0.0, st.x);
+      opacity *= step(0.0, st.y);
+
+      vec2 st2 = vec2(int(st.x / u_total_size), int(st.y / u_total_size));
+
+      float frequency = 5.0;
+      float show_offset = random(st2);
+      float rand = random(st2 * floor((u_time / frequency) + show_offset + frequency) + 1.0);
+      opacity *= u_opacities[int(rand * 10.0)];
+      opacity *= 1.0 - step(u_dot_size / u_total_size, fract(st.x / u_total_size));
+      opacity *= 1.0 - step(u_dot_size / u_total_size, fract(st.y / u_total_size));
+
+      vec3 color = u_colors[int(show_offset * 6.0)];
+
+      ${shader}
+
+      fragColor = vec4(color, opacity);
+      fragColor.rgb *= fragColor.a;
+        }`}
+      uniforms={uniforms}
+      maxFps={60}
+    />
+  );
+};
+
+type Uniforms = {
+  [key: string]: {
+    value: number[] | number[][] | number;
+    type: string;
+  };
+};
+const ShaderMaterial = ({
+  source,
+  uniforms,
+  maxFps = 60,
+}: {
+  source: string;
+  hovered?: boolean;
+  maxFps?: number;
+  uniforms: Uniforms;
+}) => {
+  const { size } = useThree();
+  const ref = useRef<THREE.Mesh>();
+  let lastFrameTime = 0;
+
+  useFrame(({ clock }) => {
+    if (!ref.current) return;
+    const timestamp = clock.getElapsedTime();
+    if (timestamp - lastFrameTime < 1 / maxFps) {
+      return;
+    }
+    lastFrameTime = timestamp;
+
+    const material: any = ref.current.material;
+    const timeLocation = material.uniforms.u_time;
+    timeLocation.value = timestamp;
+  });
+
+  const getUniforms = () => {
+    const preparedUniforms: any = {};
+
+    for (const uniformName in uniforms) {
+      const uniform: any = uniforms[uniformName];
+
+      switch (uniform.type) {
+        case 'uniform1f':
+          preparedUniforms[uniformName] = { value: uniform.value, type: '1f' };
+          break;
+        case 'uniform3f':
+          preparedUniforms[uniformName] = {
+            value: new THREE.Vector3().fromArray(uniform.value),
+            type: '3f',
+          };
+          break;
+        case 'uniform1fv':
+          preparedUniforms[uniformName] = { value: uniform.value, type: '1fv' };
+          break;
+        case 'uniform3fv':
+          preparedUniforms[uniformName] = {
+            value: uniform.value.map((v: number[]) =>
+              new THREE.Vector3().fromArray(v),
+            ),
+            type: '3fv',
+          };
+          break;
+        case 'uniform2f':
+          preparedUniforms[uniformName] = {
+            value: new THREE.Vector2().fromArray(uniform.value),
+            type: '2f',
+          };
+          break;
+        default:
+          console.error(`Invalid uniform type for '${uniformName}'.`);
+          break;
+      }
+    }
+
+    preparedUniforms['u_time'] = { value: 0, type: '1f' };
+    preparedUniforms['u_resolution'] = {
+      value: new THREE.Vector2(size.width * 2, size.height * 2),
+    }; // Initialize u_resolution
+    return preparedUniforms;
+  };
+
+  // Shader material
+  const material = useMemo(() => {
+    const materialObject = new THREE.ShaderMaterial({
+      vertexShader: `
+      precision mediump float;
+      in vec2 coordinates;
+      uniform vec2 u_resolution;
+      out vec2 fragCoord;
+      void main(){
+        float x = position.x;
+        float y = position.y;
+        gl_Position = vec4(x, y, 0.0, 1.0);
+        fragCoord = (position.xy + vec2(1.0)) * 0.5 * u_resolution;
+        fragCoord.y = u_resolution.y - fragCoord.y;
+      }
+      `,
+      fragmentShader: source,
+      uniforms: getUniforms(),
+      glslVersion: THREE.GLSL3,
+      blending: THREE.CustomBlending,
+      blendSrc: THREE.SrcAlphaFactor,
+      blendDst: THREE.OneFactor,
+    });
+
+    return materialObject;
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [size.width, size.height, source]);
+
+  return (
+    <mesh ref={ref as any}>
+      <planeGeometry args={[2, 2]} />
+      <primitive object={material} attach="material" />
+    </mesh>
+  );
+};
+
+const Shader: React.FC<ShaderProps> = ({ source, uniforms, maxFps = 60 }) => {
+  return (
+    <Canvas className="absolute inset-0  h-full w-full">
+      <ShaderMaterial source={source} uniforms={uniforms} maxFps={maxFps} />
+    </Canvas>
+  );
+};
+interface ShaderProps {
+  source: string;
+  uniforms: {
+    [key: string]: {
+      value: number[] | number[][] | number;
+      type: string;
+    };
+  };
+  maxFps?: number;
+}

src/components/SpotlightCard/Spotlight.tsx

@@ -0,0 +1,73 @@
+'use client';
+
+import { useMotionValue, motion, useMotionTemplate } from 'framer-motion';
+import React, { MouseEvent as ReactMouseEvent, useState } from 'react';
+import { CanvasRevealEffect } from './RevealEffect';
+
+const CardSpotlight = ({
+  children,
+  radius = 350,
+  color = 'transparent',
+  ...props
+}: {
+  radius?: number;
+  color?: string;
+  children: React.ReactNode;
+} & React.HTMLAttributes<HTMLDivElement>) => {
+  const mouseX = useMotionValue(0);
+  const mouseY = useMotionValue(0);
+  function handleMouseMove({
+    currentTarget,
+    clientX,
+    clientY,
+  }: ReactMouseEvent<HTMLDivElement>) {
+    const { left, top } = currentTarget.getBoundingClientRect();
+
+    mouseX.set(clientX - left);
+    mouseY.set(clientY - top);
+  }
+
+  const [isHovering, setIsHovering] = useState(false);
+  const handleMouseEnter = () => setIsHovering(true);
+  const handleMouseLeave = () => setIsHovering(false);
+  return (
+    <div
+      className={
+        'group/spotlight p-10 rounded-md relative border border-neutral-800 bg-black dark:border-neutral-800 '
+      }
+      onMouseMove={handleMouseMove}
+      onMouseEnter={handleMouseEnter}
+      onMouseLeave={handleMouseLeave}
+      {...props}
+    >
+      <motion.div
+        className="pointer-events-none absolute z-0 -inset-px rounded-md opacity-0 transition duration-300 group-hover/spotlight:opacity-100"
+        style={{
+          backgroundColor: color,
+          maskImage: useMotionTemplate`
+            radial-gradient(
+              ${radius}px circle at ${mouseX}px ${mouseY}px,
+              white,
+              transparent 80%
+            )
+          `,
+        }}
+      >
+        {isHovering && (
+          <CanvasRevealEffect
+            animationSpeed={5}
+            containerClassName="bg-transparent absolute inset-0 pointer-events-none"
+            colors={[
+              [59, 130, 246],
+              [139, 92, 246],
+            ]}
+            dotSize={3}
+          />
+        )}
+      </motion.div>
+      {children}
+    </div>
+  );
+};
+
+export default CardSpotlight;

src/components/SpotlightCard/index.ts

@@ -0,0 +1 @@
+export { default as CardSpotlight } from './Spotlight';