ScrapExplorer - Colour_bars_fade.glsl
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[FILE BEGIN]
1/* GLSL Examples
2 * A collection of GLSL examples for use with the Shader toy website and other
3 * GLSL environments.
4 * By: 0x4248
5 *
6 * Color Bars Fade
7 * Fades the color bars in and out using a sine wave saturation effect.
8 */
9
10void mainImage(out vec4 fragColor, in vec2 fragCoord) {
11  vec2 uv = fragCoord.xy / iResolution.xy;
12
13  float barWidth = 1.0 / 8.0;
14
15  int barIndex = int(uv.x / barWidth);
16
17  vec3 colors[8];
18  colors[0] = vec3(1.0, 0.0, 0.0); // Red
19  colors[1] = vec3(1.0, 0.5, 0.0); // Orange
20  colors[2] = vec3(1.0, 1.0, 0.0); // Yellow
21  colors[3] = vec3(0.0, 1.0, 0.0); // Green
22  colors[4] = vec3(0.0, 0.0, 1.0); // Blue
23  colors[5] = vec3(0.5, 0.0, 1.0); // Purple
24  colors[6] = vec3(1.0, 0.0, 1.0); // Magenta
25  colors[7] = vec3(1.0, 1.0, 1.0); // White
26
27  vec3 color = colors[barIndex];
28
29  fragColor = vec4(color, 1.0);
30
31  float saturation = 0.5 + 0.5 * sin(iTime);
32  fragColor = vec4(mix(vec3(1.0), color, saturation), 1.0);
33}
34
[FILE END]
(C) 2025 0x4248
(C) 2025 4248 Media and 4248 Systems, All part of 0x4248
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