From 9e56348975dbdaf1cce9dd688129208a61fd4eb5 Mon Sep 17 00:00:00 2001
From: LaG1924 <12997935+LaG1924@users.noreply.github.com>
Date: Fri, 21 Jul 2017 19:49:56 +0500
Subject: 2017-07-21

---
 cwd/shaders/face.fs | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 cwd/shaders/face.fs

(limited to 'cwd/shaders/face.fs')

diff --git a/cwd/shaders/face.fs b/cwd/shaders/face.fs
new file mode 100644
index 0000000..d132d7e
--- /dev/null
+++ b/cwd/shaders/face.fs
@@ -0,0 +1,52 @@
+#version 330 core
+
+in VS_OUT {
+    vec2 UvPosition;
+    vec4 Texture;
+    vec3 Color;
+} fs_in;
+
+uniform sampler2D textureAtlas;
+uniform float time;
+uniform vec2 windowSize;
+
+vec2 TransformTextureCoord(vec4 TextureAtlasCoords, vec2 UvCoords) {
+    float x = TextureAtlasCoords.x;
+    float y = TextureAtlasCoords.y;
+    float w = TextureAtlasCoords.z;
+    float h = TextureAtlasCoords.w;
+    vec2 A = vec2(x, 1 - y - h);
+    vec2 B = vec2(x + w, 1 - y);
+    return A + UvCoords * (B - A);
+}
+
+vec3 rgb2hsv(vec3 c)
+{
+    vec4 K = vec4(0.0, -1.0 / 3.0, 2.0 / 3.0, -1.0);
+    vec4 p = mix(vec4(c.bg, K.wz), vec4(c.gb, K.xy), step(c.b, c.g));
+    vec4 q = mix(vec4(p.xyw, c.r), vec4(c.r, p.yzx), step(p.x, c.r));
+
+    float d = q.x - min(q.w, q.y);
+    float e = 1.0e-10;
+    return vec3(abs(q.z + (q.w - q.y) / (6.0 * d + e)), d / (q.x + e), q.x);
+}
+
+vec3 hsv2rgb(vec3 c)
+{
+    vec4 K = vec4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);
+    vec3 p = abs(fract(c.xxx + K.xyz) * 6.0 - K.www);
+    return c.z * mix(K.xxx, clamp(p - K.xxx, 0.0, 1.0), c.y);
+}
+
+void main() {
+    gl_FragColor = texture(textureAtlas,TransformTextureCoord(fs_in.Texture,fs_in.UvPosition));
+    if (gl_FragColor.a < 0.3)
+        discard;
+    vec3 hsvColor = rgb2hsv(gl_FragColor.xyz);
+    /*hsvColor[0]+=fs_in.Color;
+    hsvColor[1]=0.63;
+    hsvColor[2]+=0.1;*/
+    hsvColor+=fs_in.Color;
+    gl_FragColor = vec4(hsv2rgb(hsvColor),1);
+    //gl_FragColor = vec4(fs_in.Color,1);
+}
\ No newline at end of file
-- 
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