let theShader;

​

function preload(){

​

  // load the shader

  theShader = loadShader('shader.vert', 'shader.frag');

​

}

​

function setup() {

​

  createCanvas(400, 400, WEBGL);

​

  noStroke();

}

​

function draw() {

  // set curr shader

  shader(theShader);

  // set uniforms

  theShader.setUniform('u_resolution', [width, height]);

  theShader.setUniform('u_time', millis()/1000);

  // idfk why everything has to be multiplied by 3 maybe something to do

  // with that shader.vert thing but i give up for today bye

  theShader.setUniform('mouseX', mouseX*3);

  theShader.setUniform('mouseY', map(mouseY*3, 0, height*3, height*3, 0));

  // draw shader onto rectangle (???)

  rect(0,0,width,height);

​

​

}