diff --git a/packages/viewer/src/components/viewer/index.tsx b/packages/viewer/src/components/viewer/index.tsx
index ec1d97bf..cf00dd5e 100644
--- a/packages/viewer/src/components/viewer/index.tsx
+++ b/packages/viewer/src/components/viewer/index.tsx
@@ -106,11 +106,11 @@ const Viewer: React.FC<ViewerProps> = ({
       camera={{ position: [50, 50, 50], fov: 50 }}
       className={`transition-colors duration-700 ${theme === 'dark' ? 'bg-[#1f2433]' : 'bg-[#fafafa]'}`}
       dpr={[1, 1.5]}
-      gl={(props) => {
+      gl={async (props) => {
         const renderer = new THREE.WebGPURenderer(props as any)
         renderer.toneMapping = THREE.ACESFilmicToneMapping
         renderer.toneMappingExposure = 0.9
-        // renderer.init() // Only use when using <DebugRenderer />
+        await renderer.init()
         return renderer
       }}
       resize={{
diff --git a/packages/viewer/src/components/viewer/post-processing.tsx b/packages/viewer/src/components/viewer/post-processing.tsx
index b4e14c75..8daf68be 100644
--- a/packages/viewer/src/components/viewer/post-processing.tsx
+++ b/packages/viewer/src/components/viewer/post-processing.tsx
@@ -53,7 +53,6 @@ const PostProcessingPasses = () => {
   const hasPipelineErrorRef = useRef(false)
   const retryCountRef = useRef(0)
   const rebuildTimeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null)
-  const [isInitialized, setIsInitialized] = useState(false)
 
   // Background color uniform — updated every frame via lerp, read by the TSL pipeline.
   // Initialised from the current theme so there's no flash on first render.
@@ -85,35 +84,6 @@ const PostProcessingPasses = () => {
     setPipelineVersion((v) => v + 1)
   }, [])
 
-  // Renderer initialization
-
-  useEffect(() => {
-    let mounted = true
-
-    const initRenderer = async () => {
-      try {
-        if (renderer && (renderer as any).init) {
-          await (renderer as any).init()
-        }
-
-        if (mounted) {
-          setIsInitialized(true)
-        }
-      } catch (error) {
-        console.error('[viewer] Failed to initialize renderer for post-processing.', error)
-        if (mounted) {
-          setIsInitialized(false)
-        }
-      }
-    }
-
-    initRenderer()
-
-    return () => {
-      mounted = false
-    }
-  }, [renderer])
-
   // Reset retry state when project changes
   useEffect(() => {
     // Intentionally touch projectId so the effect reruns on project switches.
@@ -141,7 +111,7 @@ const PostProcessingPasses = () => {
     void projectId
     void pipelineVersion
 
-    if (!(renderer && scene && camera && isInitialized)) {
+    if (!(renderer && scene && camera)) {
       return
     }
 
@@ -298,7 +268,6 @@ const PostProcessingPasses = () => {
     scene,
     camera,
     hoverHighlightMode,
-    isInitialized,
     zoneLayers,
     projectId,
     pipelineVersion,