bitzdots

1#version 330
2 
3in vec2 fragCoord;
4out vec4 fragColor;
5 
6// bar values. defaults to left channels first (low to high), then right (high to low).
7uniform float bars[512];
8 
9uniform int bars_count;    // number of bars (left + right) (configurable)
10 
11uniform vec3 u_resolution; // window resolution, not used here
12 
13//colors, configurable in cava config file
14uniform vec3 bg_color; // background color(r,g,b) (0.0 - 1.0), not used here
15uniform vec3 fg_color; // foreground color, not used here
16 
17void main()
18{
19    // find which bar to use based on where we are on the x axis
20    int bar = int(bars_count * fragCoord.x);
21 
22    float bar_y = 1.0 - abs((fragCoord.y - 0.5)) * 2.0;
23    float y = (bars[bar]) * bar_y;
24 
25    float bar_x = (fragCoord.x - float(bar) / float(bars_count)) * bars_count;
26    float bar_r = 1.0 - abs((bar_x - 0.5)) * 2;
27 
28    bar_r = bar_r * bar_r * 2;
29 
30    // set color
31    fragColor.r = fg_color.x * y * bar_r;
32    fragColor.g = fg_color.y * y * bar_r;
33    fragColor.b = fg_color.z * y * bar_r;
34}
35