The avatar for @johnowhitaker
Jonathan Whitaker
Data Scientist and independent researcher based in Zimbabwe.
Published
Edited
Mar 26, 2021
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vertexShader = createShader(gl, gl.VERTEX_SHADER, `
precision highp float;
attribute vec4 aPos;

void main() {
float x1 = aPos.x + 0.001; // Slowly increasing the x position
if (aPos.x > 1.0){x1 -= 2.0;} // Wrapping around
gl_Position = vec4(x1, aPos.yzw); // Setting the new position
gl_PointSize = 2.0; // And the size - set it small when dealing with large numbers of points
}
`)
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fragShader = createShader(gl, gl.FRAGMENT_SHADER, `
precision highp float;
void main() {
gl_FragColor = vec4(0.4, 0.1, 0.6, 1.0); // Pick your favourite colour :)
}
`)
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draw() + now // This repeatedly calls draw() updating our canvas.
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