nomarized mouse

https://gyazo.com/246d4a619cb409bec020bcb17eff5d48

code:glsl

precision mediump float;

uniform float time;

uniform vec2 mouse;

uniform vec2 resolution;

void main( void ) {

float shift_center = 0.5;

vec2 center_layout = gl_FragCoord.xy / resolution - shift_center;

vec2 moved = center_layout - vec2(mouse - shift_center);

gl_FragColor = vec4(sign(moved), 1.0, 1.0 );

}