GameDev/Godot-Shader-Lib
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Artistic nodes code refactored

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Digvijaysinh Gohil 2024-03-12 16:45:35 +05:30
parent 578a78df0b
commit 088c80aa2b
4 changed files with 15 additions and 15 deletions
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4
addons/ShaderLib/Artistic/Adjustment/Contrast.gdshaderinc
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@ -1,4 +1,4 @@
vec3 contrast(vec3 input, float contrast){
float midpoint = pow(0.5, 2.2);
return (input - midpoint) * contrast + midpoint;
float midpoint = pow(0.5, 2.2);
return (input - midpoint) * contrast + midpoint;
}

18
addons/ShaderLib/Artistic/Adjustment/Hue.gdshaderinc
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@ -1,14 +1,14 @@
vec3 hue(vec3 input, float offset, int range_index){
// RGB to HSV
// RGB to HSV
vec4 k = vec4(0.0, -1.0 / 3.0, 2.0 / 3.0, -1.0);
vec4 p = mix(vec4(input.bg, k.wz), vec4(input.gb, k.xy), step(input.b, input.g));
vec4 q = mix(vec4(p.xyw, input.r), vec4(input.r, p.yzx), step(p.x, input.r));
float d = q.x - min(q.w, q.y);
float e = 1.0e-10;
vec3 hsv = vec3(abs(q.z + (q.w - q.y) / (6.0 * d + e)), d / (q.x + e), q.x);
vec4 p = mix(vec4(input.bg, k.wz), vec4(input.gb, k.xy), step(input.b, input.g));
vec4 q = mix(vec4(p.xyw, input.r), vec4(input.r, p.yzx), step(p.x, input.r));
float d = q.x - min(q.w, q.y);
float e = 1.0e-10;
vec3 hsv = vec3(abs(q.z + (q.w - q.y) / (6.0 * d + e)), d / (q.x + e), q.x);
offset = (range_index == 0) ? offset / 360.0 : offset;
float hue = hsv.x + offset;
float hue = hsv.x + offset;
if(hue < 0.0){
hsv.x = hue + 1.;
}
@ -20,8 +20,8 @@ vec3 hue(vec3 input, float offset, int range_index){
}
// HSV to RGB
vec4 k2 = vec4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);
vec3 p2 = abs(fract(hsv.xxx + k2.xyz) * 6.0 - k2.www);
vec4 k2 = vec4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);
vec3 p2 = abs(fract(hsv.xxx + k2.xyz) * 6.0 - k2.www);
vec3 rgb = hsv.z * mix(k2.xxx, clamp(p2 - k2.xxx, 0.0, 1.0), hsv.y);
return rgb;
}

4
addons/ShaderLib/Artistic/Adjustment/ReplaceColor.gdshaderinc
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@ -1,4 +1,4 @@
vec3 replace_color(vec3 input, vec3 from, vec3 to, float range, float fuzziness){
float dist = distance(from, input);
return mix(to, input, clamp((dist - range) / max(fuzziness, 1.0e-5), 0.0, 1.0));
float dist = distance(from, input);
return mix(to, input, clamp((dist - range) / max(fuzziness, 1.0e-5), 0.0, 1.0));
}

4
addons/ShaderLib/Artistic/Adjustment/Saturation.gdshaderinc
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@ -1,4 +1,4 @@
vec3 saturation(vec3 input, float saturation){
float luma = dot(input, vec3(0.2126729, 0.7151522, 0.0721750));
return luma + saturation * (input - vec3(luma));
float luma = dot(input, vec3(0.2126729, 0.7151522, 0.0721750));
return luma + saturation * (input - vec3(luma));
}