Spaces:
Runtime error
Runtime error
Hariganesh Srinivasan
commited on
webgl
Browse files- .gitignore +2 -0
- test.py +112 -0
.gitignore
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flagged/
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.python-version
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test.py
ADDED
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@@ -0,0 +1,112 @@
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import gradio as gr
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_HTML = """
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<html>
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<body>
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<canvas id="canvas" width="500" height="500"></canvas>
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<script id="vertex" type="x-shader/x-vertex">
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#version 300 es
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in vec4 vertexPosition;
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void main() {
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gl_Position = vertexPosition;
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}
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</script>
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<script id="fragment" type="x-shader/x-fragment">
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#version 300 es
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precision highp float;
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uniform vec2 canvasSize;
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uniform float time;
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out vec4 fragColor;
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void main() {
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vec2 coord = gl_FragCoord.xy/canvasSize.xy;
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coord = 2.*coord - 1.;
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float scale = (sin(time) + 1.)/2.;
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coord /= scale;
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if (abs(coord.x) < 1. && abs(coord.y) < 1.) {
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coord = (coord + 1.)/2.;
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fragColor = vec4(coord.x, coord.y, 1.-coord.x, 1);
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} else {
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fragColor = vec4(1,1,1,1);
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}
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}
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</script>
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<script>
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const canvas = document.getElementById("canvas");
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const vertexCode = document.getElementById("vertex").textContent;
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const fragmentCode = document.getElementById("fragment").textContent;
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const gl = canvas.getContext("webgl2");
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if (!gl) throw "WebGL2 not supported";
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function createShader(shaderType, sourceCode) {
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const shader = gl.createShader(shaderType);
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gl.shaderSource(shader, sourceCode.trim());
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gl.compileShader(shader);
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if (!gl.getShaderParameter(shader, gl.COMPILE_STATUS)) {
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throw gl.getShaderInfoLog(shader);
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}
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return shader;
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}
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const program = gl.createProgram();
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gl.attachShader(program, createShader(gl.VERTEX_SHADER, vertexCode));
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gl.attachShader(program, createShader(gl.FRAGMENT_SHADER, fragmentCode));
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gl.linkProgram(program);
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if (!gl.getProgramParameter(program, gl.LINK_STATUS)) {
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throw gl.getProgramInfoLog(program);
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}
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gl.useProgram(program);
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const vertices = [
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[-1, -1],
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[1, -1],
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[-1, 1],
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[1, 1],
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];
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const vertexData = new Float32Array(vertices.flat());
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gl.bindBuffer(gl.ARRAY_BUFFER, gl.createBuffer());
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gl.bufferData(gl.ARRAY_BUFFER, vertexData, gl.STATIC_DRAW);
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const vertexPosition = gl.getAttribLocation(program, "vertexPosition");
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gl.enableVertexAttribArray(vertexPosition);
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gl.vertexAttribPointer(vertexPosition, 2, gl.FLOAT, false, 0, 0);
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const canvasSizeUniform = gl.getUniformLocation(program, 'canvasSize');
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gl.uniform2f(canvasSizeUniform, canvas.width, canvas.height);
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const timeUniform = gl.getUniformLocation(program, 'time');
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function draw() {
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gl.uniform1f(timeUniform, performance.now() / 1000);
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gl.drawArrays(gl.TRIANGLE_STRIP, 0, vertices.length);
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requestAnimationFrame(draw);
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}
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draw();
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</script>
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</body>
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</html>
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"""
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HTML = """
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"""
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def webgl():
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return ("" + HTML + "")
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demo = gr.Interface(
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webgl,
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None,
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["html"],
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)
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demo.launch()
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