feat: rebuild the nightdrive road and terrain

src/scene/render-quality.ts

@@ -2,15 +2,42 @@ import type { LiveQualityTier } from '@/scene/types';
 
 export interface RenderQualitySettings {
   pixelRatio: number;
+  roadSegments: number;
   terrainSegments: number;
+  terrainOctaves: 1 | 2 | 3;
   particleCount: number;
+  streakCount: number;
   postEffects: boolean;
 }
 
 const settings: Readonly<Record<LiveQualityTier, Omit<RenderQualitySettings, 'pixelRatio'> & { dprCap: number }>> = {
-  high: { dprCap: 1.5, terrainSegments: 96, particleCount: 384, postEffects: true },
-  medium: { dprCap: 1.5, terrainSegments: 64, particleCount: 192, postEffects: true },
-  low: { dprCap: 1.25, terrainSegments: 32, particleCount: 64, postEffects: false },
+  high: {
+    dprCap: 1.5,
+    roadSegments: 192,
+    terrainSegments: 96,
+    terrainOctaves: 3,
+    particleCount: 384,
+    streakCount: 48,
+    postEffects: true,
+  },
+  medium: {
+    dprCap: 1.5,
+    roadSegments: 144,
+    terrainSegments: 64,
+    terrainOctaves: 2,
+    particleCount: 192,
+    streakCount: 28,
+    postEffects: true,
+  },
+  low: {
+    dprCap: 1.25,
+    roadSegments: 96,
+    terrainSegments: 32,
+    terrainOctaves: 1,
+    particleCount: 64,
+    streakCount: 12,
+    postEffects: false,
+  },
 };
 
 export function renderQualityFor(
@@ -22,8 +49,11 @@ export function renderQualityFor(
   const finiteDpr = Number.isFinite(devicePixelRatio) ? Math.max(1, devicePixelRatio) : 1;
   return {
     pixelRatio: Math.min(finiteDpr, selected.dprCap, mobileOrTablet ? 1.5 : 2),
+    roadSegments: selected.roadSegments,
     terrainSegments: selected.terrainSegments,
+    terrainOctaves: selected.terrainOctaves,
     particleCount: selected.particleCount,
+    streakCount: selected.streakCount,
     postEffects: selected.postEffects,
   };
 }