physarum/vendor/gioui.org/shader/gio/zblit.frag.2.glsl100es

#version 100
precision mediump float;
precision highp int;

uniform mediump sampler2D tex;

varying highp float opacity;
varying highp vec2 vUV;

void main()
{
    gl_FragData[0] = texture2D(tex, vUV) * opacity;
}