portfolio/shaderPageTemplate.html at main · b00kworm4lyf3/portfolio · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Shader Project - Sage Brielle</title>
    <link href="https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&display=swap" rel="stylesheet">
    <link href="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/themes/prism-tomorrow.min.css" rel="stylesheet" />
    <link rel="stylesheet" href="portfolio.css">

</head>
<body>
    <nav class="nav">
        <div class="nav-container">
            <a href="/" class="nav-logo">Sage Brielle</a>
            <div class="nav-links">
                <a href="work.html">Work</a>
                <a href="about.html">About</a>
                <a href="#contact">Contact</a>
            </div>
        </div>
    </nav>

    <main class="project-content">
        <header class="project-header">
            <h1>Shader Project Title</h1>
            <p>Description of your shader project and its features.</p>
        </header>

        <div class="shader-container">
            <div class="code-panel">
                <div class="panel-header">
                    <h3>Shader Code</h3>
                </div>
                <div class="panel-content">
                    <pre><code class="language-glsl">
// Fragment Shader
precision mediump float;

uniform float time;
uniform vec2 resolution;

void main() {
    vec2 uv = gl_FragCoord.xy/resolution.xy;
    vec3 col = 0.5 + 0.5*cos(time+uv.xyx+vec3(0,2,4));
    gl_FragColor = vec4(col,1.0);
}
                    </code></pre>
                </div>
            </div>

            <div class="preview-panel">
                <div class="panel-header">
                    <h3>Live Preview</h3>
                </div>
                <div class="panel-content">
                    <canvas id="shaderCanvas"></canvas>
                </div>
            </div>
        </div>

        <div class="controls">
            <h3>Shader Controls</h3>
            <div class="control-group">
                <div class="control-item">
                    <label for="timeSpeed">Animation Speed</label>
                    <input type="range" id="timeSpeed" min="0" max="2" step="0.1" value="1">
                </div>
            </div>
        </div>
    </main>

    <script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/prism.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.29.0/components/prism-glsl.min.js"></script>
    <script>
        // Vertex shader program
        const vsSource = `
            attribute vec4 aVertexPosition;
            void main() {
                gl_Position = aVertexPosition;
            }
        `;

        // Fragment shader program
        const fsSource = `
            precision mediump float;
            uniform float time;
            uniform vec2 resolution;

            void main() {
                vec2 uv = gl_FragCoord.xy/resolution.xy;
                vec3 col = 0.5 + 0.5*cos(time+uv.xyx+vec3(0,2,4));
                gl_FragColor = vec4(col,1.0);
            }
        `;

        function initShaderProgram(gl, vsSource, fsSource) {
            const vertexShader = loadShader(gl, gl.VERTEX_SHADER, vsSource);
            const fragmentShader = loadShader(gl, gl.FRAGMENT_SHADER, fsSource);

            const shaderProgram = gl.createProgram();
            gl.attachShader(shaderProgram, vertexShader);
            gl.attachShader(shaderProgram, fragmentShader);
            gl.linkProgram(shaderProgram);

            if (!gl.getProgramParameter(shaderProgram, gl.LINK_STATUS)) {
                console.error('Unable to initialize the shader program: ' + gl.getProgramInfoLog(shaderProgram));
                return null;
            }

            return shaderProgram;
        }

        function loadShader(gl, type, source) {
            const shader = gl.createShader(type);
            gl.shaderSource(shader, source);
            gl.compileShader(shader);

            if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
                console.error('An error occurred compiling the shaders: ' + gl.getShaderInfoLog(shader));
                gl.deleteShader(shader);
                return null;
            }

            return shader;
        }

        function main() {
            const canvas = document.querySelector('#shaderCanvas');
            const gl = canvas.getContext('webgl');

            if (!gl) {
                console.error('Unable to initialize WebGL. Your browser may not support it.');
                return;
            }

            const shaderProgram = initShaderProgram(gl, vsSource, fsSource);

            const programInfo = {
                program: shaderProgram,
                attribLocations: {
                    vertexPosition: gl.getAttribLocation(shaderProgram, 'aVertexPosition'),
                },
                uniformLocations: {
                    time: gl.getUniformLocation(shaderProgram, 'time'),
                    resolution: gl.getUniformLocation(shaderProgram, 'resolution'),
                },
            };

            // Create a buffer for the square's positions.
            const positionBuffer = gl.createBuffer();
            gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer);

            // Create a square
            const positions = [
                -1.0,  1.0,
                 1.0,  1.0,
                -1.0, -1.0,
                 1.0, -1.0,
            ];

            gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(positions), gl.STATIC_DRAW);

            let then = 0;
            let timeSpeed = 1.0;

            // Update canvas size
            function resizeCanvas() {
                const displayWidth = canvas.clientWidth;
                const displayHeight = canvas.clientHeight;

                if (canvas.width !== displayWidth || canvas.height !== displayHeight) {
                    canvas.width = displayWidth;
                    canvas.height = displayHeight;
                    gl.viewport(0, 0, gl.canvas.width, gl.canvas.height);
                }
            }

            // Get the speed control
            const speedControl = document.getElementById('timeSpeed');
            speedControl.addEventListener('input', (e) => {
                timeSpeed = parseFloat(e.target.value);
            });

            function render(now) {
                now *= 0.001;  // Convert to seconds
                const deltaTime = now - then;
                then = now;

                resizeCanvas();

                gl.clearColor(0.0, 0.0, 0.0, 1.0);
                gl.clear(gl.COLOR_BUFFER_BIT);

                gl.useProgram(programInfo.program);

                gl.bindBuffer(gl.ARRAY_BUFFER, positionBuffer);
                gl.vertexAttribPointer(
                    programInfo.attribLocations.vertexPosition,
                    2,          // 2 components per vertex
                    gl.FLOAT,   // the data is 32bit floats
                    false,      // don't normalize
                    0,          // stride
                    0,          // offset
                );
                gl.enableVertexAttribArray(programInfo.attribLocations.vertexPosition);

                gl.uniform1f(programInfo.uniformLocations.time, now * timeSpeed);
                gl.uniform2f(programInfo.uniformLocations.resolution, gl.canvas.width, gl.canvas.height);

                gl.drawArrays(gl.TRIANGLE_STRIP, 0, 4);

                requestAnimationFrame(render);
            }

            requestAnimationFrame(render);
        }

        main();
    </script>
</body>
</html>