fix: remove unused imports and functions

src/rendering/UnitRenderer.ts

@@ -46,11 +46,6 @@ import { CullingService, EntityCategory } from './services/CullingService';
 import { LODConfig } from './compute/UnifiedCullingCompute';
 import { GPUIndirectRenderer } from './compute/GPUIndirectRenderer';
 
-// Unit geometry cloning - doesn't force recompute normals (units have good normals)
-function cloneGeometryForGPUUnit(source: THREE.BufferGeometry): THREE.BufferGeometry {
-  return cloneGeometryForGPU(source, { recomputeNormals: false });
-}
-
 // Instance data for a single unit type + player combo at a specific LOD level
 interface InstancedUnitGroup {
   mesh: THREE.InstancedMesh;
@@ -716,7 +711,8 @@ export class UnitRenderer {
           // Clone geometry with proper GPU buffer initialization.
           // This avoids sharing disposal lifecycle with asset cache and
           // ensures required attributes (UVs) exist for WebGPU shaders.
-          geometry = cloneGeometryForGPU(child.geometry);
+          // Units have proper normals, so don't recompute them.
+          geometry = cloneGeometryForGPU(child.geometry, { recomputeNormals: false });
           material = child.material;
           // Get the mesh's world position Y - this is lost when extracting geometry
           const worldPos = new THREE.Vector3();

src/rendering/effects/AdvancedParticleSystem.ts

@@ -16,16 +16,12 @@ import { MeshBasicNodeMaterial } from 'three/webgpu';
 import {
   Fn,
   vec4,
-  vec3,
   float,
   uniform,
   uv,
   texture,
   clamp,
-  mix,
   viewportCoordinate,
-  instanceIndex,
-  storage,
   instancedBufferAttribute,
 } from 'three/tsl';
 

src/rendering/tsl/effects/EffectPasses.ts

@@ -33,7 +33,6 @@ import {
   vec3,
   vec4,
   float,
-  int,
   Fn,
   mix,
   smoothstep,
@@ -43,11 +42,6 @@ import {
   min,
   max,
   texture,
-  normalize,
-  exp,
-  Loop,
-  If,
-  Break,
 } from 'three/tsl';
 
 // WebGPU post-processing nodes from addons