Brighter lava surface, glow and lights

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/render3d.rs

@@ -284,12 +284,12 @@ void main() {
     // light rippling over the surface: glints on water; lava glows by itself and pulses
     if (liquid) {
         if (color.a < 0.5) {
-            light = max(light, vec3(1.45, 1.3, 1.2)) * (1.0 + wave * 0.18);
+            light = max(light, vec3(1.9, 1.65, 1.45)) * (1.0 + wave * 0.18);
         } else {
             light *= 1.0 + wave * 0.28;
         }
     }
-    gl_FragColor = vec4(tex.rgb * min(light, vec3(1.9)), 1.0);
+    gl_FragColor = vec4(tex.rgb * min(light, vec3(liquid && color.a < 0.5 ? 2.4 : 1.9)), 1.0);
 }
 "#;
 
@@ -479,7 +479,7 @@ fn amb_at(f: &[f32], x: f32, z: f32) -> f32 {
 
 // ---- lava light: an orange glow up to LAVA_REACH tiles around lava, fading with the distance
 const LAVA_REACH: f32 = 10.0;
-const LAVA_LIGHT: Vec3 = Vec3::new(1.05, 0.45, 0.08); // added light at full strength (next to the lava)
+const LAVA_LIGHT: Vec3 = Vec3::new(1.3, 0.56, 0.1); // added light at full strength (next to the lava)
 
 // glow per tile: 1 on lava, falling to 0 at LAVA_REACH tiles. The light spreads over open ground
 // (walls are lit on their faces but do not let it through).
@@ -1134,7 +1134,7 @@ impl R3d {
             for x in (ccx - r).max(0)..(ccx + r).min(mw() as i32) {
                 if x % 3 == 0 && g.map.t[idx(x, z)].kind == Kind::Lava {
                     let fl = 0.8 + 0.2 * (t * 2.0 + (x * 7 + z * 3) as f32).sin();
-                    push(vec3(x as f32 + 0.5, 0.3, z as f32 + 0.5), 5.0, vec3(1.0, 0.45, 0.12), 1.3 * fl, 0.0);
+                    push(vec3(x as f32 + 0.5, 0.3, z as f32 + 0.5), 5.5, vec3(1.0, 0.45, 0.12), 1.7 * fl, 0.0);
                 }
             }
         }