Merge branch 'treeco/new-map' into 'master'

A new map and clouds

See merge request veloren/veloren!2007

CHANGELOG.md

@@ -25,6 +25,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Reworked mindflayer to have unique attacks
 - Glowing remains are now `Armor` instead of `Ingredients`.
 
+- Generated a net world map
+- Overhauled clouds for more verticality and performance
+
 ### Removed
 
 ### Fixed

assets/voxygen/shaders/fluid-frag/shiny.glsl

@@ -179,7 +179,7 @@ void main() {
     // Squared to account for prior saturation.
     float f_light = 1.0;// pow(f_light, 1.5);
     vec3 reflect_color = get_sky_color(/*reflect_ray_dir*/beam_view_dir, time_of_day.x, f_pos, vec3(-100000), 0.125, true);
-    reflect_color = get_cloud_color(reflect_color, reflect_ray_dir, cam_pos.xyz, time_of_day.x, 100000.0, 0.25);
+    reflect_color = get_cloud_color(reflect_color, reflect_ray_dir, cam_pos.xyz, time_of_day.x, 100000.0, 0.1);
     reflect_color *= f_light;
     // /*const */vec3 water_color = srgb_to_linear(vec3(0.2, 0.5, 1.0));
     // /*const */vec3 water_color = srgb_to_linear(vec3(0.8, 0.9, 1.0));

assets/voxygen/shaders/include/cloud/regular.glsl

@@ -1,77 +1,100 @@
 #include <random.glsl>
 #include <lod.glsl>
 
-const float CLOUD_THRESHOLD = 0.27;
+float falloff(float x) {
-const float CLOUD_SCALE = 5.0;
+    return pow(max(x > 0.577 ? (0.3849 / x - 0.1) : (0.9 - x * x), 0.0), 4);
-const float CLOUD_DENSITY = 150.0;
-
-vec2 get_cloud_heights(vec2 pos) {
-    const float CLOUD_HALF_WIDTH = 300;
-    const float CLOUD_HEIGHT_VARIATION = 1500.0;
-    float cloud_alt = CLOUD_AVG_ALT + (texture(t_noise, pos.xy * 0.00005).x - 0.5) * CLOUD_HEIGHT_VARIATION;
-    #if (CLOUD_MODE > CLOUD_MODE_MINIMAL)
-        cloud_alt += (texture(t_noise, pos.xy * 0.001).x - 0.5) * 0.1 * CLOUD_HEIGHT_VARIATION;
-    #endif
-    return vec2(cloud_alt, CLOUD_HALF_WIDTH);
 }
 
 float emission_strength = clamp((sin(time_of_day.x / (3600 * 24)) - 0.8) / 0.1, 0, 1);
 
+// Return the 'broad' density of the cloud at a position. This gets refined later with extra noise, but is important
+// for computing light access.
+float cloud_broad(vec3 pos) {
+    return 0.0
+        + 2 * (noise_3d(pos / vec3(vec2(30000.0), 20000.0) / cloud_scale + 1000.0) - 0.5)
+    ;
+}
+
 // Returns vec4(r, g, b, density)
 vec4 cloud_at(vec3 pos, float dist, out vec3 emission) {
     // Natural attenuation of air (air naturally attenuates light that passes through it)
     // Simulate the atmosphere thinning as you get higher. Not physically accurate, but then
     // it can't be since Veloren's world is flat, not spherical.
-    float air = 0.00035 * clamp((10000.0 - pos.z) / 7000, 0, 1);
+    float atmosphere_alt = CLOUD_AVG_ALT + 40000.0;
+    float air = 0.00005 * clamp((atmosphere_alt - pos.z) / 20000, 0, 1);
 
     // Mist sits close to the ground in valleys (TODO: use base_alt to put it closer to water)
     float mist_min_alt = 0.5;
-    #if (CLOUD_MODE > CLOUD_MODE_LOW)
+    #if (CLOUD_MODE >= CLOUD_MODE_MEDIUM)
-        mist_min_alt = (texture(t_noise, pos.xy * 0.00015).x - 0.5) * 1.25 + 0.5;
+        mist_min_alt = (texture(t_noise, pos.xy / 50000.0).x - 0.5) * 1.5 + 0.5;
     #endif
-    mist_min_alt *= 250;
+    mist_min_alt = view_distance.z * 1.5 * (1.0 + mist_min_alt * 0.5);
     const float MIST_FADE_HEIGHT = 500;
-    float mist = 0.00125 * pow(clamp(1.0 - (pos.z - mist_min_alt) / MIST_FADE_HEIGHT, 0.0, 1), 4.0) / (1.0 + pow(1.0 + dist / 20000.0, 2.0));
+    float mist = 0.00025 * pow(clamp(1.0 - (pos.z - mist_min_alt) / MIST_FADE_HEIGHT, 0.0, 1), 4.0) / (1.0 + pow(1.0 + dist / 20000.0, 2.0));
 
-    vec3 wind_pos = vec3(pos.xy + wind_offset, pos.z);
+    float alt = alt_at(pos.xy - focus_off.xy);
+
+    vec3 wind_pos = vec3(pos.xy + wind_offset, pos.z + noise_2d(pos.xy / 20000) * 500);
 
     // Clouds
     float cloud_tendency = cloud_tendency_at(pos.xy);
     float cloud = 0;
 
-    vec2 cloud_attr = get_cloud_heights(wind_pos.xy);
+    //vec2 cloud_attr = get_cloud_heights(wind_pos.xy);
-    float cloud_factor = 0.0;
-    float turb_noise = 0.0;
     float sun_access = 0.0;
     float moon_access = 0.0;
     float cloud_sun_access = 0.0;
     float cloud_moon_access = 0.0;
+    float cloud_broad_a = 0.0;
+    float cloud_broad_b = 0.0;
     // This is a silly optimisation but it actually nets us a fair few fps by skipping quite a few expensive calcs
-    if (cloud_tendency > 0 || mist > 0.0) {
+    if ((pos.z < CLOUD_AVG_ALT + 15000.0 && cloud_tendency > 0.0) || mist > 0.0) {
         // Turbulence (small variations in clouds/mist)
         const float turb_speed = -1.0; // Turbulence goes the opposite way
         vec3 turb_offset = vec3(1, 1, 0) * time_of_day.x * turb_speed;
+        mist *= 0.5
+            + 4 * (noise_2d(wind_pos.xy / 20000) - 0.5)
+            + 1 * (noise_3d(wind_pos / 1000) - 0.5);
+
+        float CLOUD_DEPTH = (view_distance.w - view_distance.z) * 0.8;
+        const float CLOUD_DENSITY = 5.0;
+        const float CLOUD_ALT_VARI_WIDTH = 100000.0;
+        const float CLOUD_ALT_VARI_SCALE = 5000.0;
+        float cloud_alt = CLOUD_AVG_ALT + alt * 0.5;
+
+        cloud_broad_a = cloud_broad(wind_pos + sun_dir.xyz * 250);
+        cloud_broad_b = cloud_broad(wind_pos - sun_dir.xyz * 250);
+        cloud = cloud_tendency + (0.0
+            + 24 * (cloud_broad_a + cloud_broad_b) * 0.5
         #if (CLOUD_MODE >= CLOUD_MODE_MINIMAL)
-            turb_noise = noise_3d((wind_pos + turb_offset) * 0.001) - 0.5;
+            + 4 * (noise_3d((wind_pos + turb_offset) / 2000.0 / cloud_scale) - 0.5)
         #endif
-        #if (CLOUD_MODE >= CLOUD_MODE_MEDIUM)
+        #if (CLOUD_MODE >= CLOUD_MODE_LOW)
-            turb_noise += (noise_3d((wind_pos + turb_offset * 0.3) * 0.004) - 0.5) * 0.35;
+            + 0.5 * (noise_3d((wind_pos + turb_offset * 0.5) / 250.0 / cloud_scale) - 0.5)
         #endif
         #if (CLOUD_MODE >= CLOUD_MODE_HIGH)
-            turb_noise += (noise_3d((wind_pos + turb_offset * 0.3) * 0.01) - 0.5) * 0.125;
+            + 0.5 * (noise_3d(wind_pos / 150.0 / cloud_scale) - 0.5)
         #endif
-        mist *= 1.0 + turb_noise;
+        ) * 0.01;
-
+        cloud = pow(cloud, 3) * sign(cloud);
-        cloud_factor = 0.25 * (1.0 - pow(min(abs(pos.z - cloud_attr.x) / (cloud_attr.y * pow(max(cloud_tendency * 20.0, 0), 0.5)), 1.0), 1.0));
+        cloud *= CLOUD_DENSITY * (cloud_tendency * 100) * falloff(abs(pos.z - cloud_alt) / CLOUD_DEPTH);
-        float cloud_flat = min(cloud_tendency, 0.07) * 0.05;
-        cloud_flat *= (1.0 + turb_noise * 7.0 * max(0, 1.0 - cloud_factor * 5));
-        cloud = cloud_flat * pow(cloud_factor, 2) * 20;
 
         // What proportion of sunlight is *not* being blocked by nearby cloud? (approximation)
-        cloud_sun_access = clamp((pos.z - cloud_attr.x + turb_noise * 250.0) * 0.002 + 0.35, 0, 1);
+        // Basically, just throw together a few values that roughly approximate this term and come up with an average
+        cloud_sun_access = (clamp((
+            // Cloud density gradient
+            0.25 * (cloud_broad_a - cloud_broad_b + (0.25 * (noise_3d(wind_pos / 4000 / cloud_scale) - 0.5) + 0.1 * (noise_3d(wind_pos / 1000 / cloud_scale) - 0.5)))
+        #if (CLOUD_MODE >= CLOUD_MODE_HIGH)
+            // More noise
+            + 0.01 * (noise_3d(wind_pos / 500) / cloud_scale - 0.5)
+        #endif
+        ) * 4.0 - 0.7, -1, 1) + 1.0);
         // Since we're assuming the sun/moon is always above (not always correct) it's the same for the moon
-        cloud_moon_access = sun_access;
+        cloud_moon_access = 1.0 - cloud_sun_access;
+    }
 
+    // Keeping this because it's something I'm likely to reenable later
+    /*
     #if (CLOUD_MODE >= CLOUD_MODE_HIGH)
         // Try to calculate a reasonable approximation of the cloud normal
         float cloud_tendency_x = cloud_tendency_at(pos.xy + vec2(100, 0));
@@ -79,14 +102,14 @@ vec4 cloud_at(vec3 pos, float dist, out vec3 emission) {
         vec3 cloud_norm = vec3(
             (cloud_tendency - cloud_tendency_x) * 4,
             (cloud_tendency - cloud_tendency_y) * 4,
-                (pos.z - cloud_attr.x) / 250 + turb_noise + 0.5
+            (pos.z - cloud_attr.x) / cloud_attr.y + 0.5
         );
-            cloud_sun_access = mix(max(dot(-sun_dir.xyz, cloud_norm) + 0.0, 0.025), cloud_sun_access, 0.25);
+        cloud_sun_access = mix(max(dot(-sun_dir.xyz, cloud_norm) - 1.0, 0.025), cloud_sun_access, 0.25);
-            cloud_moon_access = mix(max(dot(-moon_dir.xyz, cloud_norm) + 0.35, 0.025), cloud_moon_access, 0.25);
+        cloud_moon_access = mix(max(dot(-moon_dir.xyz, cloud_norm) - 0.6, 0.025), cloud_moon_access, 0.25);
     #endif
-    }
+    */
 
-    float mist_sun_access = 0.5 + turb_noise * 0.5;
+    float mist_sun_access = noise_2d(wind_pos.xy / 10000);
     float mist_moon_access = mist_sun_access;
     sun_access = mix(cloud_sun_access, mist_sun_access, clamp(mist * 20000, 0, 1));
     moon_access = mix(cloud_moon_access, mist_moon_access, clamp(mist * 20000, 0, 1));
@@ -97,28 +120,21 @@ vec4 cloud_at(vec3 pos, float dist, out vec3 emission) {
     //moon_access *= suppress_mist;
 
     // Prevent clouds and mist appearing underground (but fade them out gently)
-    float not_underground = clamp(1.0 - (alt_at(pos.xy - focus_off.xy) - (pos.z - focus_off.z)) / 80.0, 0, 1);
+    float not_underground = clamp(1.0 - (alt - (pos.z - focus_off.z)) / 80.0 + dist * 0.001, 0, 1);
     air *= not_underground;
     float vapor_density = (mist + cloud) * not_underground;
 
     if (emission_strength <= 0.0) {
         emission = vec3(0);
     } else {
-        float z = clamp(pos.z, 0, 10000);
+        float emission_alt = CLOUD_AVG_ALT * 2.0 + (noise_3d(vec3(wind_pos.xy * 0.0001 + cloud_tendency * 0.2, time_of_day.x * 0.0002)) - 0.5) * 6000;
-        float emission_alt = 4000.0;
-        #if (CLOUD_MODE >= CLOUD_MODE_LOW)
-            emission_alt += (noise_3d(vec3(wind_pos.xy * 0.00003 + cloud_tendency * 0.2, time_of_day.x * 0.0001)) - 0.5) * 6000;
-        #endif
-        #if (CLOUD_MODE >= CLOUD_MODE_HIGH)
-            emission_alt += (noise_3d(vec3(wind_pos.xy * 0.0005 + cloud_tendency * 0.2, emission_alt * 0.0001 + time_of_day.x * 0.0005)) - 0.5) * 1000;
-        #endif
-        float tail = (texture(t_noise, wind_pos.xy * 0.00005).x - 0.5) * 10 + (z - emission_alt) * 0.001;
-        vec3 emission_col = vec3(0.6 + tail * 0.6, 1.0, 0.3 + tail * 0.2);
-        float emission_nz = max(texture(t_noise, wind_pos.xy * 0.00003).x - 0.6, 0) / (10.0 + abs(z - emission_alt) / 40);
         #if (CLOUD_MODE >= CLOUD_MODE_MEDIUM)
-            emission_nz *= (1.0 + (noise_3d(vec3(wind_pos.xy * 0.05, time_of_day.x * 0.15) * 0.004) - 0.5) * 4.0);
+            emission_alt += (noise_3d(vec3(wind_pos.xy * 0.0005 + cloud_tendency * 0.2, emission_alt * 0.0001 + time_of_day.x * 0.001)) - 0.5) * 1000;
         #endif
-        emission = emission_col * emission_nz * emission_strength * max(sun_dir.z, 0) * 20;
+        float tail = (texture(t_noise, wind_pos.xy * 0.000025).x - 0.5) * 5 + (pos.z - emission_alt) * 0.0001;
+        vec3 emission_col = vec3(0.8 + tail * 1.5, 0.5 - tail * 0.2, 0.3 + tail * 0.2);
+        float emission_nz = max(pow(texture(t_noise, wind_pos.xy * 0.000015).x, 8), 0.01) * 0.25 / (10.0 + abs(pos.z - emission_alt) / 80);
+        emission = emission_col * emission_nz * emission_strength * max(sun_dir.z, 0) * 500000 / (1000.0 + abs(pos.z - emission_alt) * 0.1);
     }
 
     // We track vapor density and air density separately. Why? Because photons will ionize particles in air
@@ -136,13 +152,13 @@ const float DIST_CAP = 50000;
 #if (CLOUD_MODE == CLOUD_MODE_ULTRA)
     const uint QUALITY = 200u;
 #elif (CLOUD_MODE == CLOUD_MODE_HIGH)
-    const uint QUALITY = 50u;
+    const uint QUALITY = 40u;
 #elif (CLOUD_MODE == CLOUD_MODE_MEDIUM)
-    const uint QUALITY = 30u;
+    const uint QUALITY = 18u;
 #elif (CLOUD_MODE == CLOUD_MODE_LOW)
-    const uint QUALITY = 16u;
+    const uint QUALITY = 6u;
 #elif (CLOUD_MODE == CLOUD_MODE_MINIMAL)
-    const uint QUALITY = 5u;
+    const uint QUALITY = 2u;
 #endif
 
 const float STEP_SCALE = DIST_CAP / (10.0 * float(QUALITY));
@@ -175,11 +191,14 @@ vec3 get_cloud_color(vec3 surf_color, vec3 dir, vec3 origin, const float time_of
         splay += (texture(t_noise, vec2(atan2(dir.x, dir.y) * 2 / PI, dir.z) * 5.0 - time_of_day * 0.00005).x - 0.5) * 0.075 / (1.0 + pow(dir.z, 2) * 10);
     #endif
 
+    /* const float RAYLEIGH = 0.25; */
+    const vec3 RAYLEIGH = vec3(0.025, 0.1, 0.5);
+
     // Proportion of sunlight that get scattered back into the camera by clouds
-    float sun_scatter = max(dot(-dir, sun_dir.xyz), 0.5);
+    float sun_scatter = dot(-dir, sun_dir.xyz) * 0.5 + 0.7;
-    float moon_scatter = max(dot(-dir, moon_dir.xyz), 0.5);
+    float moon_scatter = dot(-dir, moon_dir.xyz) * 0.5 + 0.7;
-    vec3 sky_color = get_sky_color();
     float net_light = get_sun_brightness() + get_moon_brightness();
+    vec3 sky_color = RAYLEIGH * net_light;
 
     float cdist = max_dist;
     float ldist = cdist;
@@ -196,22 +215,16 @@ vec3 get_cloud_color(vec3 surf_color, vec3 dir, vec3 origin, const float time_of
 
         float sun_access = sample.x;
         float moon_access = sample.y;
-        float scatter_factor = 1.0 - 1.0 / (1.0 + density_integrals.x);
+        float cloud_scatter_factor = 1.0 - 1.0 / (1.0 + clamp(density_integrals.x, 0, 1));
-
+        float global_scatter_factor = 1.0 - 1.0 / (1.0 + clamp(density_integrals.y, 0, 1));
-        const float RAYLEIGH = 0.25;
 
         surf_color =
             // Attenuate light passing through the clouds
-            surf_color * (1.0 - scatter_factor) +
+            surf_color * (1.0 - cloud_scatter_factor - global_scatter_factor) +
-            // This is not rayleigh scattering, but it's good enough for our purposes (only considers sun)
+            // Add the directed light light scattered into the camera by the clouds and the atmosphere (global illumination)
-            (1.0 - surf_color) * net_light * sky_color * density_integrals.y * RAYLEIGH +
+            get_sun_color() * sun_scatter * get_sun_brightness() * (sun_access * cloud_scatter_factor + sky_color * global_scatter_factor) +
-            // Add the directed light light scattered into the camera by the clouds
+            get_moon_color() * moon_scatter * get_moon_brightness() * (moon_access * cloud_scatter_factor + sky_color * global_scatter_factor) +
-            get_sun_color() * sun_scatter * sun_access * scatter_factor * get_sun_brightness() +
+            emission * density_integrals.y;
-            get_moon_color() * moon_scatter * moon_access * scatter_factor * get_moon_brightness() +
-            emission * density_integrals.y +
-            // Global illumination (uniform scatter from the sky)
-            sky_color * sun_access * scatter_factor * get_sun_brightness() +
-            sky_color * moon_access * scatter_factor * get_moon_brightness();
     }
 
     return surf_color;

assets/voxygen/shaders/include/sky.glsl

@@ -18,14 +18,14 @@ const float PI = 3.141592;
 const vec3 SKY_DAY_TOP = vec3(0.1, 0.5, 0.9);
 const vec3 SKY_DAY_MID = vec3(0.02, 0.28, 0.8);
 const vec3 SKY_DAY_BOT = vec3(0.1, 0.2, 0.3);
-const vec3 DAY_LIGHT   = vec3(2.8, 3.5, 1.8);
+const vec3 DAY_LIGHT   = vec3(3.8, 3.0, 1.8);
-const vec3 SUN_HALO_DAY = vec3(0.06, 0.06, 0.005);
+const vec3 SUN_HALO_DAY = vec3(0.8, 0.8, 0.001);
 
 const vec3 SKY_DUSK_TOP = vec3(0.06, 0.1, 0.20);
 const vec3 SKY_DUSK_MID = vec3(0.35, 0.1, 0.15);
 const vec3 SKY_DUSK_BOT = vec3(0.0, 0.1, 0.23);
 const vec3 DUSK_LIGHT   = vec3(8.0, 1.5, 0.15);
-const vec3 SUN_HALO_DUSK = vec3(1.2, 0.15, 0.01);
+const vec3 SUN_HALO_DUSK = vec3(2.2, 0.5, 0.1);
 
 const vec3 SKY_NIGHT_TOP = vec3(0.001, 0.001, 0.0025);
 const vec3 SKY_NIGHT_MID = vec3(0.001, 0.005, 0.02);
@@ -76,17 +76,16 @@ vec3 glow_light(vec3 pos) {
 //    return normalize(-vec3(sin(moon_angle_rad), 0.0, cos(moon_angle_rad) - 0.5));
 //}
 
-float CLOUD_AVG_ALT = view_distance.z + 0.75 * view_distance.w;
+float CLOUD_AVG_ALT = view_distance.z + (view_distance.w - view_distance.z) * 1.25;
 
 const float wind_speed = 0.25;
 vec2 wind_offset = vec2(time_of_day.x * wind_speed);
 
+float cloud_scale = view_distance.z / 150.0;
+
 float cloud_tendency_at(vec2 pos) {
-    float nz = texture(t_noise, (pos + wind_offset) * 0.000075).x - 0.5;
+    float nz = texture(t_noise, (pos + wind_offset) / 60000.0 / cloud_scale).x - 0.3;
-    nz = clamp(nz, 0, 1);
+    nz = pow(clamp(nz, 0, 1), 4);
-    #if (CLOUD_MODE >= CLOUD_MODE_MEDIUM)
-        nz += (texture(t_noise, (pos + wind_offset) * 0.00035).x - 0.5) * 0.15;
-    #endif
     return nz;
 }
 
@@ -101,9 +100,7 @@ float cloud_shadow(vec3 pos, vec3 light_dir) {
         float fade = 1.0 - clamp((length(xy_offset) - FADE_RANGE.x) / (FADE_RANGE.y - FADE_RANGE.x), 0, 1);
         float cloud = cloud_tendency_at(pos.xy + focus_off.xy - xy_offset);
 
-        cloud = cloud * 2.0;
+        return clamp(1 - fade * cloud * 16.0, 0, 1);
-
-        return clamp(1 - fade * cloud * 1.65, 0, 1);
     #endif
 }
 
@@ -112,7 +109,7 @@ float get_sun_brightness(/*vec3 sun_dir*/) {
 }
 
 float get_moon_brightness(/*vec3 moon_dir*/) {
-    return max(-moon_dir.z + 0.6, 0.0) * 0.2;
+    return max(-moon_dir.z + 0.6, 0.0) * 0.05;
 }
 
 vec3 get_sun_color(/*vec3 sun_dir*/) {
@@ -142,7 +139,7 @@ vec3 get_sky_color(/*vec3 sun_dir*/) {
 }
 
 vec3 get_moon_color(/*vec3 moon_dir*/) {
-    return vec3(0.05, 0.05, 0.6);
+    return vec3(0.05, 0.05, 1.6);
 }
 
 DirectionalLight get_sun_info(vec4 _dir, float shade_frac/*, vec4 light_pos[2]*/, /*vec4 sun_pos*/vec3 f_pos) {
@@ -413,7 +410,7 @@ float is_star_at(vec3 dir) {
 
     //return 0.0;
 
-    return 1.0 / (1.0 + pow(dist * 1000, 8));
+    return 1.0 / (1.0 + pow(dist * 750, 8));
 }
 
 vec3 get_sky_color(vec3 dir, float time_of_day, vec3 origin, vec3 f_pos, float quality, bool with_features, float refractionIndex) {
@@ -434,7 +431,7 @@ vec3 get_sky_color(vec3 dir, float time_of_day, vec3 origin, vec3 f_pos, float q
     }
 
     // Sun
-    const vec3 SUN_SURF_COLOR = vec3(1.5, 0.9, 0.35) * 3.0;
+    const vec3 SUN_SURF_COLOR = vec3(1.5, 0.9, 0.35) * 8.0;
 
     vec3 sun_halo_color = mix(
         SUN_HALO_DUSK,
@@ -442,7 +439,7 @@ vec3 get_sky_color(vec3 dir, float time_of_day, vec3 origin, vec3 f_pos, float q
         max(-sun_dir.z, 0.0)
     );
 
-    vec3 sun_halo = sun_halo_color * 16 * pow(max(dot(dir, -sun_dir), 0), 8.0);
+    vec3 sun_halo = sun_halo_color * 4 * pow(max(dot(dir, -sun_dir), 0), 20.0);
     vec3 sun_surf = vec3(0);
     if (with_features) {
         float angle = 0.00035;
@@ -451,11 +448,11 @@ vec3 get_sky_color(vec3 dir, float time_of_day, vec3 origin, vec3 f_pos, float q
     vec3 sun_light = sun_halo + sun_surf;
 
     // Moon
-    const vec3 MOON_SURF_COLOR = vec3(0.7, 1.0, 1.5) * 3.0;
+    const vec3 MOON_SURF_COLOR = vec3(0.7, 1.0, 1.5) * 20.0;
-    const vec3 MOON_HALO_COLOR = vec3(0.015, 0.015, 0.05) * 25;
+    const vec3 MOON_HALO_COLOR = vec3(0.015, 0.015, 0.05) * 48;
 
     vec3 moon_halo_color = MOON_HALO_COLOR;
-    vec3 moon_halo = moon_halo_color * pow(max(dot(dir, -moon_dir), 0), 500.0);
+    vec3 moon_halo = moon_halo_color * pow(max(dot(dir, -moon_dir), 0), 100.0);
     vec3 moon_surf = vec3(0);
     if (with_features) {
         float angle = 0.00035;
@@ -465,6 +462,7 @@ vec3 get_sky_color(vec3 dir, float time_of_day, vec3 origin, vec3 f_pos, float q
 
     // Replaced all clamp(sun_dir, 0, 1) with max(sun_dir, 0) because sun_dir is calculated from sin and cos, which are never > 1
 
+    #if (CLOUD_MODE == CLOUD_MODE_NONE)
         vec3 sky_top = mix(
             mix(
                 SKY_DUSK_TOP + star / (1.0 + moon_surf * 100.0),
@@ -503,14 +501,11 @@ vec3 get_sky_color(vec3 dir, float time_of_day, vec3 origin, vec3 f_pos, float q
             sky_top,
             max(dir.z, 0)
         );
+    #else
+        vec3 sky_color = vec3(0) + star;
+    #endif
 
-    // Approximate distance to fragment
+    return sky_color + sun_light + moon_light;
-    float f_dist = distance(origin, f_pos);
-
-    if (f_dist > 5000.0) {
-        sky_color += sun_light + moon_light;
-    }
-    return sky_color;
 }
 
 vec3 get_sky_color(vec3 dir, float time_of_day, vec3 origin, vec3 f_pos, float quality, bool with_stars) {

assets/voxygen/shaders/lod-terrain-frag.glsl

@@ -648,7 +648,7 @@ void main() {
             float passthrough = dot(faceforward(f_norm, f_norm, cam_to_frag), -cam_to_frag);
 
             vec3 reflect_color = get_sky_color(reflect_ray, time_of_day.x, f_pos, vec3(-100000), 0.125, true);
-            reflect_color = get_cloud_color(reflect_color, reflect_ray, cam_pos.xyz, time_of_day.x, 100000.0, 0.25);
+            reflect_color = get_cloud_color(reflect_color, reflect_ray, cam_pos.xyz, time_of_day.x, 100000.0, 0.1);
 
             const float REFLECTANCE = 0.5;
             surf_color = illuminate(max_light, view_dir, f_col * emitted_light, reflect_color * REFLECTANCE + water_color * reflected_light);

assets/voxygen/shaders/particle-vert.glsl

@@ -294,7 +294,7 @@ void main() {
         );
     } else if (inst_mode == SNOW) {
         float height = mix(-4, 60, pow(start_end(1, 0), 3));
-        float wind_speed = (inst_pos.z - 250) * 0.025;
+        float wind_speed = (inst_pos.z - 2000) * 0.025;
         vec3 offset = linear_motion(vec3(0), vec3(1, 1, 0) * wind_speed);
         float end_alt = alt_at(start_pos.xy + offset.xy);
         attr = Attr(

client/src/lib.rs

@@ -33,7 +33,7 @@ use common::{
     grid::Grid,
     outcome::Outcome,
     recipe::RecipeBook,
-    resources::PlayerEntity,
+    resources::{DeltaTime, PlayerEntity, TimeOfDay},
     terrain::{block::Block, neighbors, BiomeKind, SitesKind, TerrainChunk, TerrainChunkSize},
     trade::{PendingTrade, SitePrices, TradeAction, TradeId, TradeResult},
     uid::{Uid, UidAllocator},
@@ -1472,7 +1472,9 @@ impl Client {
                 }
             },
             ServerGeneral::TimeOfDay(time_of_day) => {
-                *self.state.ecs_mut().write_resource() = time_of_day;
+                let dt = self.state.ecs().read_resource::<DeltaTime>().0;
+                let mut tod = self.state.ecs_mut().write_resource::<TimeOfDay>();
+                tod.0 = Lerp::lerp(tod.0, time_of_day.0, dt as f64);
             },
             ServerGeneral::EntitySync(entity_sync_package) => {
                 self.state

common/src/cmd.rs

@@ -80,6 +80,7 @@ pub enum ChatCommand {
     Safezone,
     Say,
     SetMotd,
+    Site,
     SkillPoint,
     Spawn,
     Sudo,
@@ -140,6 +141,7 @@ pub static CHAT_COMMANDS: &[ChatCommand] = &[
     ChatCommand::Safezone,
     ChatCommand::Say,
     ChatCommand::SetMotd,
+    ChatCommand::Site,
     ChatCommand::SkillPoint,
     ChatCommand::Spawn,
     ChatCommand::Sudo,
@@ -438,6 +440,9 @@ impl ChatCommand {
             ChatCommand::SetMotd => {
                 cmd(vec![Message(Optional)], "Set the server description", Admin)
             },
+            // Uses Message because site names can contain spaces, which would be assumed to be
+            // separators otherwise
+            ChatCommand::Site => cmd(vec![Message(Required)], "Teleport to a site", Admin),
             ChatCommand::SkillPoint => cmd(
                 vec![
                     Enum("skill tree", SKILL_TREES.clone(), Required),
@@ -546,6 +551,7 @@ impl ChatCommand {
             ChatCommand::Safezone => "safezone",
             ChatCommand::Say => "say",
             ChatCommand::SetMotd => "set_motd",
+            ChatCommand::Site => "site",
             ChatCommand::SkillPoint => "skill_point",
             ChatCommand::Spawn => "spawn",
             ChatCommand::Sudo => "sudo",

server/src/cmd.rs

@@ -127,6 +127,7 @@ fn get_handler(cmd: &ChatCommand) -> CommandHandler {
         ChatCommand::Safezone => handle_safezone,
         ChatCommand::Say => handle_say,
         ChatCommand::SetMotd => handle_set_motd,
+        ChatCommand::Site => handle_site,
         ChatCommand::SkillPoint => handle_skill_point,
         ChatCommand::Spawn => handle_spawn,
         ChatCommand::Sudo => handle_sudo,
@@ -463,6 +464,51 @@ fn handle_goto(
     }
 }
 
+fn handle_site(
+    server: &mut Server,
+    client: EcsEntity,
+    target: EcsEntity,
+    args: String,
+    action: &ChatCommand,
+) {
+    if let Ok(dest_name) = scan_fmt!(&args, &action.arg_fmt(), String) {
+        if server
+            .state
+            .read_component_copied::<comp::Pos>(target)
+            .is_some()
+        {
+            match server.world.civs().sites().find(|site| {
+                site.site_tmp
+                    .map_or(false, |id| server.index.sites[id].name() == dest_name)
+            }) {
+                Some(site) => {
+                    let pos = server
+                        .world
+                        .find_lowest_accessible_pos(server.index.as_index_ref(), site.center);
+                    server.state.write_component(target, comp::Pos(pos));
+                    server.state.write_component(target, comp::ForceUpdate);
+                },
+                None => {
+                    server.notify_client(
+                        client,
+                        ServerGeneral::server_msg(ChatType::CommandError, "Site not found"),
+                    );
+                },
+            };
+        } else {
+            server.notify_client(
+                client,
+                ServerGeneral::server_msg(ChatType::CommandError, "You have no position."),
+            );
+        }
+    } else {
+        server.notify_client(
+            client,
+            ServerGeneral::server_msg(ChatType::CommandError, action.help_string()),
+        );
+    }
+}
+
 fn handle_home(
     server: &mut Server,
     client: EcsEntity,

server/src/lib.rs

@@ -66,7 +66,6 @@ use common::{
     slowjob::SlowJobPool,
     terrain::TerrainChunkSize,
     uid::UidAllocator,
-    vol::{ReadVol, RectVolSize},
 };
 use common_ecs::run_now;
 use common_net::{
@@ -297,50 +296,28 @@ impl Server {
             // but are needed to be explicit about casting (and to make the compiler stop
             // complaining)
 
-            // spawn in the chunk, that is in the middle of the world
+            // Search for town defined by spawn_town server setting. If this fails, or is
-            let center_chunk: Vec2<i32> = world.sim().map_size_lg().chunks().map(i32::from) / 2;
+            // None, set spawn to the nearest town to the centre of the world
-
+            let spawn_chunk = match settings.spawn_town.as_ref().and_then(|spawn_town| {
-            // Find a town to spawn in that's close to the centre of the world
+                world.civs().sites().find(|site| {
-            let spawn_chunk = world
+                    site.site_tmp
+                        .map_or(false, |id| index.sites[id].name() == spawn_town)
+                })
+            }) {
+                Some(t) => t.center,
+                None => {
+                    let center_chunk = world.sim().map_size_lg().chunks().map(i32::from) / 2;
+                    world
                         .civs()
                         .sites()
                         .filter(|site| matches!(site.kind, world::civ::SiteKind::Settlement))
                         .map(|site| site.center)
                         .min_by_key(|site_pos| site_pos.distance_squared(center_chunk))
-                .unwrap_or(center_chunk);
+                        .unwrap_or(center_chunk)
+                },
+            };
 
-            // Calculate the middle of the chunk in the world
+            world.find_lowest_accessible_pos(index, spawn_chunk)
-            let spawn_wpos = TerrainChunkSize::center_wpos(spawn_chunk);
-
-            // Unwrapping because generate_chunk only returns err when should_continue evals
-            // to true
-            let (tc, _cs) = world.generate_chunk(index, spawn_chunk, || false).unwrap();
-            let min_z = tc.get_min_z();
-            let max_z = tc.get_max_z();
-
-            let pos = Vec3::new(spawn_wpos.x, spawn_wpos.y, min_z);
-            (0..(max_z - min_z))
-                .map(|z_diff| pos + Vec3::unit_z() * z_diff)
-                .find(|test_pos| {
-                    let chunk_relative_xy = test_pos
-                        .xy()
-                        .map2(TerrainChunkSize::RECT_SIZE, |e, sz| e.rem_euclid(sz as i32));
-                    tc.get(
-                        Vec3::new(chunk_relative_xy.x, chunk_relative_xy.y, test_pos.z)
-                            - Vec3::unit_z(),
-                    )
-                    .map_or(false, |b| b.is_filled())
-                        && (0..3).all(|z| {
-                            tc.get(
-                                Vec3::new(chunk_relative_xy.x, chunk_relative_xy.y, test_pos.z)
-                                    + Vec3::unit_z() * z,
-                            )
-                            .map_or(true, |b| !b.is_solid())
-                        })
-                })
-                .unwrap_or(pos)
-                .map(|e| e as f32)
-                + 0.5
         };
         #[cfg(not(feature = "worldgen"))]
         let spawn_point = Vec3::new(0.0, 0.0, 256.0);

server/src/rtsim/mod.rs

@@ -98,7 +98,7 @@ pub fn init(state: &mut State, #[cfg(feature = "worldgen")] world: &world::World
     #[cfg(not(feature = "worldgen"))]
     let mut rtsim = RtSim::new(Vec2::new(40, 40));
 
-    for _ in 0..2500 {
+    for _ in 0..world.sim().get_size().product() / 400 {
         let pos = rtsim
             .chunks
             .size()

server/src/settings.rs

@@ -16,7 +16,7 @@ use std::{
 use tracing::{error, warn};
 use world::sim::FileOpts;
 
-const DEFAULT_WORLD_SEED: u32 = 59686;
+const DEFAULT_WORLD_SEED: u32 = 25269;
 const CONFIG_DIR: &str = "server_config";
 const SETTINGS_FILENAME: &str = "settings.ron";
 const WHITELIST_FILENAME: &str = "whitelist.ron";
@@ -42,6 +42,7 @@ pub struct Settings {
     pub banned_words_files: Vec<PathBuf>,
     pub max_player_group_size: u32,
     pub client_timeout: Duration,
+    pub spawn_town: Option<String>,
 }
 
 impl Default for Settings {
@@ -59,6 +60,7 @@ impl Default for Settings {
             banned_words_files: Vec::new(),
             max_player_group_size: 6,
             client_timeout: Duration::from_secs(40),
+            spawn_town: None,
         }
     }
 }

world/src/civ/mod.rs

@@ -86,8 +86,7 @@ impl Civs {
         let initial_civ_count = initial_civ_count(sim.map_size_lg());
         let mut ctx = GenCtx { sim, rng };
 
-        // TODO: Care about world size when generating caves.
+        for _ in 0..ctx.sim.get_size().product() / 10_000 {
-        for _ in 0..100 {
             this.generate_cave(&mut ctx);
         }
 
@@ -251,13 +250,13 @@ impl Civs {
             .into_iter()
             .for_each(|posi| {
                 let chpos = uniform_idx_as_vec2(ctx.sim.map_size_lg(), posi);
-                let wpos = chpos * TerrainChunkSize::RECT_SIZE.map(|e| e as i32);
+                let wpos = chpos.map(|e| e as i64) * TerrainChunkSize::RECT_SIZE.map(|e| e as i64);
                 let closest_site = (*sites)
                     .iter_mut()
                     .filter(|s| !matches!(s.1.kind, crate::site::SiteKind::Dungeon(_)))
-                    .min_by_key(|(_id, s)| s.get_origin().distance_squared(wpos));
+                    .min_by_key(|(_id, s)| s.get_origin().map(|e| e as i64).distance_squared(wpos));
                 if let Some((_id, s)) = closest_site {
-                    let distance_squared = s.get_origin().distance_squared(wpos);
+                    let distance_squared = s.get_origin().map(|e| e as i64).distance_squared(wpos);
                     s.economy
                         .add_chunk(ctx.sim.get(chpos).unwrap(), distance_squared);
                 }

world/src/lib.rs

@@ -165,6 +165,41 @@ impl World {
 
     pub fn sample_blocks(&self) -> BlockGen { BlockGen::new(ColumnGen::new(&self.sim)) }
 
+    pub fn find_lowest_accessible_pos(&self, index: IndexRef, chunk_pos: Vec2<i32>) -> Vec3<f32> {
+        // Calculate the middle of the chunk in the world
+        let spawn_wpos = TerrainChunkSize::center_wpos(chunk_pos);
+
+        // Unwrapping because generate_chunk only returns err when should_continue evals
+        // to true
+        let (tc, _cs) = self.generate_chunk(index, chunk_pos, || false).unwrap();
+        let min_z = tc.get_min_z();
+        let max_z = tc.get_max_z();
+
+        let pos = Vec3::new(spawn_wpos.x, spawn_wpos.y, min_z);
+        (0..(max_z - min_z))
+            .map(|z_diff| pos + Vec3::unit_z() * z_diff)
+            .find(|test_pos| {
+                let chunk_relative_xy = test_pos
+                    .xy()
+                    .map2(TerrainChunkSize::RECT_SIZE, |e, sz| e.rem_euclid(sz as i32));
+                tc.get(
+                    Vec3::new(chunk_relative_xy.x, chunk_relative_xy.y, test_pos.z)
+                        - Vec3::unit_z(),
+                )
+                .map_or(false, |b| b.is_filled())
+                    && (0..3).all(|z| {
+                        tc.get(
+                            Vec3::new(chunk_relative_xy.x, chunk_relative_xy.y, test_pos.z)
+                                + Vec3::unit_z() * z,
+                        )
+                        .map_or(true, |b| !b.is_solid())
+                    })
+            })
+            .unwrap_or(pos)
+            .map(|e| e as f32)
+            + 0.5
+    }
+
     #[allow(clippy::or_fun_call)] // TODO: Pending review in #587
     #[allow(clippy::eval_order_dependence)]
     #[allow(clippy::result_unit_err)]

world/src/sim/mod.rs

@@ -265,7 +265,7 @@ pub type ModernMap = WorldMap_0_7_0;
 /// with changing versions, or at least keep it in a constant somewhere that's
 /// easy to change.
 #[allow(clippy::redundant_static_lifetimes)] // TODO: Pending review in #587
-pub const DEFAULT_WORLD_MAP: &'static str = "world.map.veloren_0_6_0_0";
+pub const DEFAULT_WORLD_MAP: &'static str = "world.map.veloren_0_9_0_0";
 
 impl WorldFileLegacy {
     #[inline]
@@ -462,7 +462,7 @@ impl WorldSim {
         //
         // FIXME: This is a hack!  At some point we will hae a more principled way of
         // dealing with this.
-        let continent_scale_hack = 1.0/*4.0*/;
+        let continent_scale_hack = 2.0/*4.0*/;
         let (parsed_world_file, map_size_lg) = parsed_world_file
             .and_then(|map| match MapSizeLg::new(map.map_size_lg) {
                 Ok(map_size_lg) => Some((Some(map), map_size_lg)),

world/src/sim2/mod.rs

@@ -568,7 +568,7 @@ fn trade_at_site(
                         break;
                     }
                 }
-                let mut paid_amount = allocated_amount - balance / *price;
+                let mut paid_amount = (allocated_amount - balance / *price).min(economy.stocks[*g]);
                 if paid_amount / allocated_amount < 0.95 {
                     debug!(
                         "Client {} is broke on {:?} : {} {} severity {}",

world/src/site/economy.rs

@@ -279,7 +279,7 @@ impl Economy {
         // info!("resources {:?}", self.stocks);
     }
 
-    pub fn add_chunk(&mut self, ch: &SimChunk, distance_squared: i32) {
+    pub fn add_chunk(&mut self, ch: &SimChunk, distance_squared: i64) {
         let biome = ch.get_biome();
         // we don't scale by pi, although that would be correct
         let distance_bin = (distance_squared >> 16).min(64) as usize;