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Documenting the passes and config variables.

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Rezmason
2021-10-20 21:39:04 -07:00
parent 4c6ff879fd
commit d285697640
5 changed files with 66 additions and 36 deletions
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16
shaders/resurrectionPass.frag
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@@ -35,10 +35,24 @@ vec3 hslToRgb(float h, float s, float l){
void main() {
vec3 brightness = mix(texture2D( bloomTex, vUV ).rgb, texture2D( tex, vUV ).rgb, (0.7 - length(vUV - 0.5))) * 1.25 - rand( gl_FragCoord.xy, time ) * ditherMagnitude;
// Mix the texture and bloom based on distance from center,
// to approximate a lens blur
vec3 brightness = mix(
texture2D( bloomTex, vUV ).rgb,
texture2D( tex, vUV ).rgb,
(0.7 - length(vUV - 0.5))
) * 1.25;
// Dither: subtract a random value from the brightness
brightness = brightness - rand( gl_FragCoord.xy, time ) * ditherMagnitude;
// Calculate a hue based on distance from center
float hue = 0.35 + (length(vUV - vec2(0.5, 1.0)) * -0.4 + 0.2);
// Convert HSL to RGB
vec3 rgb = hslToRgb(hue, 0.8, max(0., brightness.r)) * vec3(0.8, 1.0, 0.7);
// Calculate a separate RGB for upward-flowing glyphs
vec3 resurrectionRGB = hslToRgb(0.13, 1.0, max(0., brightness.g) * 0.9);
gl_FragColor = vec4(rgb + resurrectionRGB + backgroundColor, 1.0);
}