Combining colors and LOD.

assets/voxygen/shaders/skybox-frag.glsl

@@ -15,8 +15,8 @@ out vec4 tgt_color;
 void main() {
 	vec4 _clouds;
 
-	/* vec3 cam_dir = normalize(f_pos - cam_pos.xyz);
-	vec3 world_pos = cam_pos.xyz + cam_dir * 500000.0;
+	vec3 cam_dir = normalize(f_pos - cam_pos.xyz);
+	/* vec3 world_pos = cam_pos.xyz + cam_dir * 500000.0;
 	tgt_color = vec4(get_sky_color(normalize(f_pos), time_of_day.x, cam_pos.xyz, world_pos, 1.0, true, _clouds), 1.0); */
 	float fog_level = fog(f_pos.xyz, focus_pos.xyz, medium.x);
 
@@ -24,7 +24,7 @@ void main() {
 	if (medium.x == 1u) {
 		dist = UNDERWATER_MIST_DIST;
 	}
-	vec3 wpos = cam_pos.xyz + normalize(f_pos) * dist;
+	vec3 wpos = cam_pos.xyz + /*normalize(f_pos)*/cam_dir * dist;
 
 	tgt_color = vec4(get_sky_color(normalize(f_pos), time_of_day.x, cam_pos.xyz, wpos, 1.0, true, _clouds), 1.0);
 }

client/src/lib.rs

@@ -71,6 +71,15 @@ pub struct Client {
     client_state: ClientState,
     thread_pool: ThreadPool,
     pub server_info: ServerInfo,
+    /// Just the "base" layer for LOD; currently includes colors and a 1-byte
+    /// approximation for height.  In the future we'll add more layers, like
+    /// shadows, rivers, and probably foliage, cities, roads, and other
+    /// structures.
+    pub lod_base: Arc<DynamicImage>,
+    /// A fully rendered map image for use with the map and minimap; note that
+    /// this can be constructed dynamically by combining the layers of world
+    /// map data (e.g. with shadow map data or river data), but at present
+    /// we opt not to do this.
     pub world_map: (Arc<DynamicImage>, Vec2<u32>),
     pub player_list: HashMap<u64, String>,
 
@@ -98,7 +107,7 @@ impl Client {
         let mut postbox = PostBox::to(addr)?;
 
         // Wait for initial sync
-        let (state, entity, server_info, world_map) = match postbox.next_message()? {
+        let (state, entity, server_info, lod_base, world_map) = match postbox.next_message()? {
             ServerMsg::InitialSync {
                 entity_package,
                 server_info,
@@ -219,22 +228,26 @@ impl Client {
                             u32::from_le_bytes([r, g, b, a]);
                     },
                 );
-                let mut world_map_raw = vec![0u8; 4 * world_map.len()/*map_size.x * map_size.y*/];
-                LittleEndian::write_u32_into(&world_map, &mut world_map_raw);
-                let world_map = Arc::new(
+                let make_raw = |rgba| -> Result<_, Error> {
+                    let mut raw = vec![0u8; 4 * world_map.len()/*map_size.x * map_size.y*/];
+                    LittleEndian::write_u32_into(rgba, &mut raw);
+                    Ok(Arc::new(
                         image::DynamicImage::ImageRgba8({
                             // Should not fail if the dimensions are correct.
-                        let world_map =
-                            image::ImageBuffer::from_raw(map_size.x, map_size.y, world_map_raw);
-                        world_map.ok_or(Error::Other("Server sent a bad world map image".into()))?
+                            let map =
+                                image::ImageBuffer::from_raw(map_size.x, map_size.y, raw);
+                            map.ok_or(Error::Other("Server sent a bad world map image".into()))?
                         })
                         // Flip the image, since Voxygen uses an orientation where rotation from
                         // positive x axis to positive y axis is counterclockwise around the z axis.
                         .flipv(),
-                );
+                    ))
+                };
+                let lod_base = make_raw(&rgba)?;
+                let world_map = make_raw(&world_map)?;
                 log::debug!("Done preparing image...");
 
-                (state, entity, server_info, (world_map, map_size))
+                (state, entity, server_info, lod_base, (world_map, map_size))
             },
             ServerMsg::TooManyPlayers => return Err(Error::TooManyPlayers),
             _ => return Err(Error::ServerWentMad),
@@ -253,6 +266,7 @@ impl Client {
             thread_pool,
             server_info,
             world_map,
+            lod_base,
             player_list: HashMap::new(),
 
             postbox,

voxygen/src/hud/settings_window.rs

@@ -1612,7 +1612,8 @@ impl<'a> Widget for SettingsWindow<'a> {
                 .set(state.ids.lod_detail_text, ui);
 
             if let Some(new_val) = ImageSlider::discrete(
-                ((self.global_state.settings.graphics.lod_detail as f32 / 100.0).log(5.0) * 10.0).round() as i32,
+                ((self.global_state.settings.graphics.lod_detail as f32 / 100.0).log(5.0) * 10.0)
+                    .round() as i32,
                 0,
                 20,
                 self.imgs.slider_indicator,
@@ -1625,7 +1626,9 @@ impl<'a> Widget for SettingsWindow<'a> {
             .pad_track((5.0, 5.0))
             .set(state.ids.lod_detail_slider, ui)
             {
-                events.push(Event::AdjustLodDetail((5.0f32.powf(new_val as f32 / 10.0) * 100.0) as u32));
+                events.push(Event::AdjustLodDetail(
+                    (5.0f32.powf(new_val as f32 / 10.0) * 100.0) as u32,
+                ));
             }
 
             Text::new(&format!(

voxygen/src/scene/lod.rs

@@ -22,7 +22,7 @@ impl Lod {
             model: None,
             locals: renderer.create_consts(&[Locals::default()]).unwrap(),
             map: renderer
-                .create_texture(&client.world_map.0, Some(FilterMethod::Trilinear), None)
+                .create_texture(&client.lod_base, Some(FilterMethod::Trilinear), None)
                 .expect("Failed to generate map texture"),
             tgt_detail: settings.graphics.lod_detail.max(100).min(2500),
         }