[OffTopic] Help me to make an animation noise

[xmha97]

Hi, there is the file below:

// Author @patriciogv - 2015
// http://patriciogonzalezvivo.com

#ifdef GL_ES
precision mediump float;
#endif

uniform vec2 u_resolution;
uniform vec2 u_mouse;
uniform float u_time;

float random (vec2 st) {
    return fract(sin(dot(st.xy,
                         vec2(12.9898,78.233)))*
        43758.5453123);
}

void main() {
    vec2 st = gl_FragCoord.xy/u_resolution.xy;

    float rnd = random( st );

    gl_FragColor = vec4(vec3(rnd),1.0);
}

I want to make an animation noise. Please help me.

[patriciogonzalezvivo]

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