draw = regl({
vert: vertexShaderSrc,
frag: fragmentShaderSrc,
attributes: {
a_position: [[-1, -1, 0, 1], [1, -1, 0, 1], [1, 1, 0, 1], [-1, 1, 0, 1]]
},
uniforms: {
u_time: ({ time }) => time
},
depth: {
enable: false
},
primitive: 'triangle fan',
count: 4
})