PRE21

2 files changed, 43 insertions, 0 deletions

diff --git a/src/main/resources/assets/notenoughupdates/shaders/capes/fade_cape/fade_cape.frag b/src/main/resources/assets/notenoughupdates/shaders/capes/fade_cape/fade_cape.frag
new file mode 100644
index 00000000..33d6b341
--- /dev/null
+++ b/src/main/resources/assets/notenoughupdates/shaders/capes/fade_cape/fade_cape.frag
@@ -0,0 +1,31 @@
+#version 120
+
+varying vec4 passColour;
+varying vec3 passNormal;
+uniform sampler2D textureIn;
+
+uniform int millis;
+
+//Algorithm by hughsk
+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 texture = texture2D(textureIn, gl_TexCoord[0].st);
+
+    float hue = mod(millis/10000.0f+gl_TexCoord[0].t, 1.0f);
+    float sat = 0.5f;
+    float val = 0.5f;
+    vec3 fade = hsv2rgb(vec3(hue, sat, val));
+
+    gl_FragColor = vec4(texture.rgb*texture.a + fade*(1.0f-texture.a), 1.0f) * passColour;
+
+    vec3 fakeSunNormal = normalize(vec3(0.2f,1.0f,-0.2f));
+    vec3 normNormal = normalize(passNormal);
+    float shading = max(0.6f, dot(fakeSunNormal, normNormal));
+
+    gl_FragColor = vec4(gl_FragColor.rgb*shading, gl_FragColor.a);
+}
diff --git a/src/main/resources/assets/notenoughupdates/shaders/capes/fade_cape/fade_cape.vert b/src/main/resources/assets/notenoughupdates/shaders/capes/fade_cape/fade_cape.vert
new file mode 100644
index 00000000..2b5c48f8
--- /dev/null
+++ b/src/main/resources/assets/notenoughupdates/shaders/capes/fade_cape/fade_cape.vert
@@ -0,0 +1,12 @@
+#version 120
+
+varying vec4 passColour;
+varying vec3 passNormal;
+
+void main() {
+    gl_Position = gl_ModelViewProjectionMatrix * gl_Vertex;
+    gl_TexCoord[0] = gl_MultiTexCoord0;
+
+    passColour = gl_Color;
+    passNormal = normalize(gl_Normal);
+}
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