Add the whole ass shader

it has begun

shaders/lib/color_dither.glsl

@@ -0,0 +1,46 @@
+//using white noise for color dithering : gives a somewhat more "filmic" look when noise is visible
+float nrand( vec2 n )
+{
+	return fract(sin(dot(n.xy, vec2(12.9898, 78.233)))* 43758.5453);
+}
+
+float triangWhiteNoise( vec2 n )
+{
+
+	float t = fract( frameTimeCounter );
+	float rnd = nrand( n + 0.07*t );
+
+    float center = rnd*2.0-1.0;
+    rnd = center*inversesqrt(abs(center));
+    rnd = max(-1.0,rnd); 
+    return rnd-sign(center);
+}
+
+vec3 fp10Dither(vec3 color,vec2 tc01){
+	float dither = triangWhiteNoise(tc01);
+	const vec3 mantissaBits = vec3(6.,6.,5.);
+	vec3 exponent = floor(log2(color));
+	return color + dither*exp2(-mantissaBits)*exp2(exponent);
+}
+
+vec3 fp16Dither(vec3 color,vec2 tc01){
+	float dither = triangWhiteNoise(tc01);
+	const vec3 mantissaBits = vec3(10.);
+	vec3 exponent = floor(log2(color));
+	return color + dither*exp2(-mantissaBits)*exp2(exponent);
+}
+
+vec3 int8Dither(vec3 color,vec2 tc01){
+	float dither = triangWhiteNoise(tc01);
+	return color + dither*exp2(-8.0);
+}
+
+vec3 int10Dither(vec3 color,vec2 tc01){
+	float dither = triangWhiteNoise(tc01);
+	return color + dither*exp2(-10.0);
+}
+
+vec3 int16Dither(vec3 color,vec2 tc01){
+	float dither = triangWhiteNoise(tc01);
+	return color + dither*exp2(-16.0);
+}