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#version 300 es
precision highp float;
in vec2 vertex_texcoord;
out vec4 frag_color;
uniform float opacity;
uniform vec2 resolution;
uniform float time;
uniform float bpm;
uniform vec2 cursor;
uniform float chat_time;
uniform float chat_biblicality;
uniform float tracking_mouth;
uniform vec2 tracking_eyes;
uniform mat4 tracking_neck;
uniform vec2 emacs_cursor;
uniform vec2 mouse_cursor;
uniform int heartrate;
vec4 shade(vec2);
void main() {
vec2 inverted = vec2(vertex_texcoord.x, 1.0 - vertex_texcoord.y);
frag_color = shade(inverted);
frag_color.a = clamp(frag_color.a * opacity, 0.0, opacity);
}
// "The Cutoff"
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