4 files changed, 119 insertions, 0 deletions

diff --git a/cwd/assets/altcraft/shaders/frag/entity.fs b/cwd/assets/altcraft/shaders/frag/entity.fs
new file mode 100644
index 0000000..f0bb42f
--- /dev/null
+++ b/cwd/assets/altcraft/shaders/frag/entity.fs
@@ -0,0 +1,9 @@
+#version 330 core
+
+uniform vec3 color;
+in vec2 uvPos;
+
+void main(){
+    //if (uvPos.x < 0.9 && uvPos.x > 0.1 && uvPos.y < 0.9 && uvPos.y > 0.1) discard;
+    gl_FragColor = vec4(color,1);
+}
\ No newline at end of file
diff --git a/cwd/assets/altcraft/shaders/frag/face.fs b/cwd/assets/altcraft/shaders/frag/face.fs
new file mode 100644
index 0000000..98b389a
--- /dev/null
+++ b/cwd/assets/altcraft/shaders/frag/face.fs
@@ -0,0 +1,48 @@
+#version 330 core
+
+in VS_OUT {
+    vec2 UvPosition;
+    vec3 Texture;
+    vec3 Color;
+    vec2 Light;
+} fs_in;
+
+uniform sampler2DArray textureAtlas;
+uniform float DayTime;
+uniform float MinLightLevel;
+
+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() {
+	vec4 color = texture(textureAtlas,fs_in.Texture);
+    if (color.a < 0.3)
+        discard;
+
+    vec3 hsvColor = rgb2hsv(color.xyz);
+    hsvColor+=fs_in.Color;
+	color = vec4(hsv2rgb(hsvColor),1);
+
+	float light = fs_in.Light.x / 15.0;
+	float skyLight = (fs_in.Light.y / 15.0) * DayTime;
+
+    float faceLight = clamp(light + skyLight,MinLightLevel,1.0);
+
+    color = vec4(color.rgb * faceLight, color.a);
+	gl_FragColor = color;
+}
\ No newline at end of file
diff --git a/cwd/assets/altcraft/shaders/frag/fbo.fs b/cwd/assets/altcraft/shaders/frag/fbo.fs
new file mode 100644
index 0000000..df624b3
--- /dev/null
+++ b/cwd/assets/altcraft/shaders/frag/fbo.fs
@@ -0,0 +1,11 @@
+#version 330 core
+
+out vec4 FragColor;
+in vec2 TexCoords;
+
+uniform sampler2D inputTexture;
+
+void main()
+{
+    FragColor = texture(inputTexture, TexCoords);
+}
\ No newline at end of file
diff --git a/cwd/assets/altcraft/shaders/frag/sky.fs b/cwd/assets/altcraft/shaders/frag/sky.fs
new file mode 100644
index 0000000..36d65a5
--- /dev/null
+++ b/cwd/assets/altcraft/shaders/frag/sky.fs
@@ -0,0 +1,51 @@
+#version 330 core
+
+in vec2 uvPos;
+in vec3 pos;
+
+uniform sampler2DArray textureAtlas;
+uniform float DayTime;
+uniform vec4 sunTexture;
+uniform float sunTextureLayer;
+uniform vec4 moonTexture;
+uniform float moonTextureLayer;
+
+const vec4 DaySkyColor = vec4(0.49,0.66,1, 1);
+
+const vec3 SunPos = vec3(0,0.1,0.5);
+
+const vec3 MoonPos = vec3(0,0.1,-0.5);
+
+vec3 TransformTextureCoord(vec4 TextureAtlasCoords, vec2 UvCoords, float Layer) {
+    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);
+	vec2 transformed = A + UvCoords * (B - A);
+    return vec3(transformed.x, transformed.y, Layer);
+}
+
+vec4 Sun() {
+    vec3 sunDelta = (pos - SunPos)*3.0f;
+    float distanceToSun = length(sunDelta);
+    vec4 sunColor = texture(textureAtlas,TransformTextureCoord(sunTexture,(vec2(sunDelta.xy)+0.5f),sunTextureLayer));
+    vec4 sun = mix(vec4(0,0,0,1),sunColor,clamp(1-distanceToSun*2.0f,0,1));
+    return sun;
+}
+
+vec4 Moon() {
+    vec3 moonDelta = (pos - MoonPos)*4.5f;
+    float distanceToMoon = length(moonDelta);
+    vec4 moonColor = texture(textureAtlas,TransformTextureCoord(moonTexture,(vec2(moonDelta.xy)+0.5f),moonTextureLayer));
+    vec4 moon = mix(vec4(0,0,0,1),moonColor,clamp(1-distanceToMoon*2.0f,0,1));
+    return moon;
+}
+
+void main() {
+    vec4 starColor = vec4(0.0f, 0.04f, 0.06f, 1.0f);
+    gl_FragColor = mix(starColor, DaySkyColor, DayTime);
+    gl_FragColor += Sun();
+    gl_FragColor += Moon();
+}
\ No newline at end of file