rotating tesseract

simplex/shaders/sect.frag

@@ -13,7 +13,7 @@ vec3 hsv2rgb(vec3 c) {
 void main() {
     float h = pos.w / 3 + .6;
     float s = 1;
-    float v = smoothstep(1, -1, pos.z);
+    float v = smoothstep(2, -2, pos.z);
 
     fcolor = vec4(hsv2rgb(vec3(h, s, v)), 1);
 }

simplex/shaders/wire.frag

@@ -0,0 +1,19 @@
+#version 440 core
+
+out vec4 fcolor;
+
+in vec4 pos;
+
+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() {
+    float h = pos.w / 3 + .6;
+    float s = 1;
+    float v = smoothstep(2, -2, pos.z);
+
+    fcolor = vec4(hsv2rgb(vec3(h, s, v)), 1);
+}