Add everything.

Resources/Shaders/skybox_frag.glsl

@@ -0,0 +1,98 @@
+#version 330 core
+out vec4 FragColor;
+in vec3 fragPos;
+
+uniform float timeOfDay; // 0..1 (0.0 = midnight)
+
+float hash(vec3 p) {
+    p = fract(p * 0.3183099 + 0.1);
+    p *= 17.0;
+    return fract(p.x * p.y * p.z * (p.x + p.y + p.z));
+}
+
+vec3 getSkyColor(vec3 dir, float tod) {
+    float height = dir.y;
+
+    // Continuous rotation – no midnight jump
+    float t = fract(tod);
+    float angle = t * 6.28318530718;
+    vec3 sunDir = normalize(vec3(cos(angle), sin(angle) * 0.5, sin(angle)));
+    float sunDot = max(dot(dir, sunDir), 0.0);
+
+    // Your original colors (unchanged)
+    vec3 nightTop      = vec3(0.01, 0.01, 0.05);
+    vec3 nightHorizon  = vec3(0.05, 0.05, 0.15);
+    vec3 dayTop        = vec3(0.3, 0.5, 0.9);
+    vec3 dayHorizon    = vec3(0.6, 0.7, 0.9);
+    vec3 sunriseTop    = vec3(0.4, 0.3, 0.5);
+    vec3 sunriseHorizon= vec3(1.0, 0.5, 0.3);
+    vec3 sunsetTop     = vec3(0.5, 0.3, 0.4);
+    vec3 sunsetHorizon = vec3(1.0, 0.4, 0.2);
+
+    // Same 4-phase interpolation as you had
+    vec3 skyTop, skyHorizon;
+    if (t < 0.25) {
+        float f = t * 4.0;
+        skyTop     = mix(nightTop,     sunriseTop,     f);
+        skyHorizon = mix(nightHorizon, sunriseHorizon, f);
+    } else if (t < 0.5) {
+        float f = (t-0.25)*4.0;
+        skyTop     = mix(sunriseTop,     dayTop,     f);
+        skyHorizon = mix(sunriseHorizon, dayHorizon, f);
+    } else if (t < 0.75) {
+        float f = (t-0.5)*4.0;
+        skyTop     = mix(dayTop,     sunsetTop,     f);
+        skyHorizon = mix(dayHorizon, sunsetHorizon, f);
+    } else {
+        float f = (t-0.75)*4.0;
+        skyTop     = mix(sunsetTop,     nightTop,     f);
+        skyHorizon = mix(sunsetHorizon, nightHorizon, f);
+    }
+
+    vec3 skyColor = mix(skyHorizon, skyTop, smoothstep(-0.3, 0.3, height));
+
+    // Sun (exactly like yours)
+    vec3 sunCol = vec3(1.0, 0.95, 0.8);
+    float sunGlow = pow(sunDot, 128.0) * 2.0;
+    float sunDisc = smoothstep(0.9995, 0.9998, sunDot);
+    float atmGlow = pow(sunDot, 8.0) * 0.5;
+
+    float sunVisibility = smoothstep(-0.12, 0.15, sunDir.y); // smooth fade in/out
+    skyColor += sunCol * (sunDisc + atmGlow + sunGlow*0.3) * sunVisibility;
+
+    // ——— STARS: now actually visible and pretty ———
+    float night = 1.0 - sunVisibility;
+    if (night > 0.0) {
+        vec3 p = dir * 160.0;              // denser grid
+        vec3 i = floor(p);
+        vec3 f = fract(p);
+
+        float stars = 0.0;
+        for (int z=-1; z<=1; z++)
+        for (int y=-1; y<=1; y++)
+        for (int x=-1; x<=1; x++) {
+            vec3 o = vec3(x,y,z);
+            vec3 pos = i + o;
+            float h = hash(pos);
+            if (h > 0.99) {                            // only the brightest 1%
+                vec3 center = o + 0.5 + (hash(pos+vec3(7,13,21))-0.5)*0.8;
+                float d = length(f - center);
+                float star = 1.0 - smoothstep(0.0, 0.12, d);   // tiny sharp dot
+                star *= (h - 0.99)*100.0;                      // brightness variation
+                stars += star;
+            }
+        }
+        stars = pow(stars, 1.4);
+        stars *= night;
+        stars *= smoothstep(-0.1, 0.25, height); // fade near horizon
+        skyColor += vec3(1.0, 0.95, 0.9) * stars * 2.5;
+    }
+
+    return skyColor;
+}
+
+void main() {
+    vec3 dir = normalize(fragPos);
+    vec3 col = getSkyColor(dir, timeOfDay);
+    FragColor = vec4(col, 1.0);
+}