diff --git a/apps/editor/components/editor/index.tsx b/apps/editor/components/editor/index.tsx
index 7e531da4..5c495509 100644
--- a/apps/editor/components/editor/index.tsx
+++ b/apps/editor/components/editor/index.tsx
@@ -1,6 +1,11 @@
 'use client'
 
-import { initSpatialGridSync, initSpaceDetectionSync, sceneRegistry, useScene } from '@pascal-app/core'
+import {
+  initSpaceDetectionSync,
+  initSpatialGridSync,
+  sceneRegistry,
+  useScene,
+} from '@pascal-app/core'
 import { useGridEvents, useViewer, Viewer } from '@pascal-app/viewer'
 
 import { useFrame } from '@react-three/fiber'
@@ -43,7 +48,7 @@ export default function Editor() {
         {/* Editor only system to toggle zone visibility */}
         <ZoneSystem />
         {/* <Stats /> */}
-        <Grid cellColor="#666" sectionColor="#999" fadeDistance={30} />
+        <Grid cellColor="#aaa" sectionColor="#ccc" fadeDistance={30} />
         <ToolManager />
         <CustomCameraControls />
       </Viewer>
@@ -51,7 +56,6 @@ export default function Editor() {
   )
 }
 
-
 const Grid = ({
   cellSize = 0.5,
   cellThickness = 0.5,
diff --git a/packages/viewer/src/components/renderers/item/item-renderer.tsx b/packages/viewer/src/components/renderers/item/item-renderer.tsx
index ad9a2528..f247dd29 100644
--- a/packages/viewer/src/components/renderers/item/item-renderer.tsx
+++ b/packages/viewer/src/components/renderers/item/item-renderer.tsx
@@ -9,17 +9,17 @@ import { useNodeEvents } from '../../../hooks/use-node-events'
 // Shared materials to avoid creating new instances for every mesh
 const defaultMaterial = new MeshStandardNodeMaterial({
   color: 0xffffff,
-  roughness: 0.8,
+  roughness: 1,
   metalness: 0,
 })
 
 const glassMaterial = new MeshStandardNodeMaterial({
   name: 'glass',
-  color: 'skyblue',
+  color: 'lightgray',
   roughness: 0.8,
   metalness: 0,
   transparent: true,
-  opacity: 0.25,
+  opacity: 0.35,
   side: DoubleSide,
   depthWrite: false,
 })
diff --git a/packages/viewer/src/components/viewer/index.tsx b/packages/viewer/src/components/viewer/index.tsx
index fb5db148..df13ebb8 100644
--- a/packages/viewer/src/components/viewer/index.tsx
+++ b/packages/viewer/src/components/viewer/index.tsx
@@ -28,12 +28,12 @@ interface ViewerProps {
 const Viewer: React.FC<ViewerProps> = ({ children, selectionManager = 'default' }) => {
   return (
     <Canvas
-      className={'bg-[#303035]'}
+      className={'bg-[#fafafa]'}
       gl={async (props) => {
         const renderer = new THREE.WebGPURenderer(props as any)
         await renderer.init()
         renderer.toneMapping = THREE.ACESFilmicToneMapping
-        renderer.toneMappingExposure = 1.2
+        renderer.toneMappingExposure = 0.9
         return renderer
       }}
       shadows={{
@@ -42,7 +42,7 @@ const Viewer: React.FC<ViewerProps> = ({ children, selectionManager = 'default'
       }}
       camera={{ position: [50, 50, 50], fov: 50 }}
     >
-      <color attach="background" args={['#ececec']} />
+      <color attach="background" args={['#fafafa']} />
       <ViewerCamera />
 
       {/* <directionalLight position={[10, 10, 5]} intensity={0.5} castShadow
diff --git a/packages/viewer/src/components/viewer/lights.tsx b/packages/viewer/src/components/viewer/lights.tsx
index 8739b72f..219e5dff 100644
--- a/packages/viewer/src/components/viewer/lights.tsx
+++ b/packages/viewer/src/components/viewer/lights.tsx
@@ -1,4 +1,3 @@
-import { Environment } from '@react-three/drei'
 import { useRef } from 'react'
 import type { DirectionalLight, OrthographicCamera } from 'three/webgpu'
 
@@ -12,30 +11,42 @@ export function Lights() {
 
   return (
     <>
-    <directionalLight
-      ref={lightRef}
-      position={[10, 10, 10]}
-      castShadow
-      intensity={1}
-      shadow-bias={-0.002}
-      shadow-normalBias={0.3}
-      shadow-mapSize={[1024, 1024]}
-      shadow-radius={3}
-    >
-      <orthographicCamera
-        ref={shadowCamera}
-        attach="shadow-camera"
-        near={1}
-        far={100}
-        left={-shadowCameraSize}
-        right={shadowCameraSize}
-        top={shadowCameraSize}
-        bottom={-shadowCameraSize}
-      />
-    </directionalLight>
+      <directionalLight
+        ref={lightRef}
+        position={[10, 10, 10]}
+        castShadow
+        intensity={4}
+        shadow-bias={-0.002}
+        shadow-normalBias={0.3}
+        shadow-mapSize={[1024, 1024]}
+        shadow-radius={3}
+        shadow-intensity={0.4}
+      >
+        <orthographicCamera
+          ref={shadowCamera}
+          attach="shadow-camera"
+          near={1}
+          far={100}
+          left={-shadowCameraSize}
+          right={shadowCameraSize}
+          top={shadowCameraSize}
+          bottom={-shadowCameraSize}
+        />
+      </directionalLight>
 
-          <ambientLight intensity={0.2} />
-          <Environment preset="sunset" environmentIntensity={0.4} />
+      <directionalLight
+        position={[-10, 10, -10]}
+        intensity={0.75}
+      />
+
+      <directionalLight
+        position={[-10, 10, 10]}
+        intensity={1}
+      />
+
+      <ambientLight intensity={0.5} 
+        color='white' />
+      {/* <Environment preset="sunset" environmentIntensity={0.4} /> */}
     </>
   )
 }
diff --git a/packages/viewer/src/components/viewer/post-processing.tsx b/packages/viewer/src/components/viewer/post-processing.tsx
index b6c179dc..c4290f73 100644
--- a/packages/viewer/src/components/viewer/post-processing.tsx
+++ b/packages/viewer/src/components/viewer/post-processing.tsx
@@ -1,99 +1,186 @@
-import { useFrame, useThree } from "@react-three/fiber";
-import { useEffect, useRef } from "react";
-import { Color } from "three";
-import { outline } from "three/addons/tsl/display/OutlineNode.js";
-import { oscSine, pass, time, uniform } from "three/tsl";
-import { PostProcessing, type WebGPURenderer } from "three/webgpu";
-import useViewer from "../../store/use-viewer";
+import { useFrame, useThree } from '@react-three/fiber'
+import { useEffect, useRef } from 'react'
+import { Color, UnsignedByteType } from 'three'
+import { outline } from 'three/addons/tsl/display/OutlineNode.js'
+import { ssgi } from 'three/addons/tsl/display/SSGINode.js'
+import { traa } from 'three/addons/tsl/display/TRAANode.js'
+import {
+  add,
+  colorToDirection,
+  diffuseColor,
+  directionToColor,
+  mrt,
+  normalView,
+  oscSine,
+  output,
+  pass,
+  sample,
+  time,
+  uniform,
+  vec4,
+  velocity,
+} from 'three/tsl'
+import { PostProcessing, type WebGPURenderer } from 'three/webgpu'
+import useViewer from '../../store/use-viewer'
+
+// SSGI Parameters - adjust these to fine-tune global illumination and ambient occlusion
+export const SSGI_PARAMS = {
+  enabled: true,
+  sliceCount: 2,
+  stepCount: 8,
+  radius: 2,
+  expFactor: 2,
+  thickness: 0.5,
+  backfaceLighting: 0.5,
+  aoIntensity: 1.5,
+  giIntensity: 1,
+  useLinearThickness: false,
+  useScreenSpaceSampling: true,
+  useTemporalFiltering: true,
+}
 
 const PostProcessingPasses = () => {
-  const { gl: renderer, scene, camera } = useThree();
-  const postProcessingRef = useRef<PostProcessing | null>(null);
+  const { gl: renderer, scene, camera } = useThree()
+  const postProcessingRef = useRef<PostProcessing | null>(null)
 
   useEffect(() => {
     if (!renderer || !scene || !camera) {
-      return;
+      return
     }
 
-    const scenePass = pass(scene, camera);
+    // Scene pass with MRT for SSGI
+    const scenePass = pass(scene, camera)
+    scenePass.setMRT(
+      mrt({
+        output: output,
+        diffuseColor: diffuseColor,
+        normal: directionToColor(normalView),
+        velocity: velocity,
+      }),
+    )
+
+    // Get texture outputs
+    const scenePassColor = scenePass.getTextureNode('output')
+    const scenePassDiffuse = scenePass.getTextureNode('diffuseColor')
+    const scenePassDepth = scenePass.getTextureNode('depth')
+    const scenePassNormal = scenePass.getTextureNode('normal')
+    const scenePassVelocity = scenePass.getTextureNode('velocity')
+
+    // Optimize texture bandwidth
+    const diffuseTexture = scenePass.getTexture('diffuseColor')
+    diffuseTexture.type = UnsignedByteType
+
+    const normalTexture = scenePass.getTexture('normal')
+    normalTexture.type = UnsignedByteType
+
+    // Extract normal from color-encoded texture
+    const sceneNormal = sample((uv) => {
+      return colorToDirection(scenePassNormal.sample(uv))
+    })
+
+    // SSGI Pass (cast to PerspectiveCamera for SSGI)
+    const giPass = ssgi(scenePassColor, scenePassDepth, sceneNormal, camera as any)
+    giPass.sliceCount.value = SSGI_PARAMS.sliceCount
+    giPass.stepCount.value = SSGI_PARAMS.stepCount
+    giPass.radius.value = SSGI_PARAMS.radius
+    giPass.expFactor.value = SSGI_PARAMS.expFactor
+    giPass.thickness.value = SSGI_PARAMS.thickness
+    giPass.backfaceLighting.value = SSGI_PARAMS.backfaceLighting
+    giPass.aoIntensity.value = SSGI_PARAMS.aoIntensity
+    giPass.giIntensity.value = SSGI_PARAMS.giIntensity
+    giPass.useLinearThickness.value = SSGI_PARAMS.useLinearThickness
+    giPass.useScreenSpaceSampling.value = SSGI_PARAMS.useScreenSpaceSampling
+    giPass.useTemporalFiltering = SSGI_PARAMS.useTemporalFiltering
+
+    // Extract GI and AO from SSGI pass
+    const gi = giPass.rgb
+    const ao = giPass.a
+
+    // Composite: scene * AO + diffuse * GI
+    const compositePass = vec4(
+      add(scenePassColor.rgb.mul(ao), scenePassDiffuse.rgb.mul(gi)),
+      scenePassColor.a,
+    )
+
+    // TRAA (Temporal Reprojection Anti-Aliasing)
+    const traaPass = traa(compositePass, scenePassDepth, scenePassVelocity, camera)
 
     function generateSelectedOutlinePass() {
-      const edgeStrength = uniform(3);
-      const edgeGlow = uniform(0);
-      const edgeThickness = uniform(1);
-      const visibleEdgeColor = uniform(new Color(0xffffff));
-      const hiddenEdgeColor = uniform(new Color(0xf3ff47));
+      const edgeStrength = uniform(3)
+      const edgeGlow = uniform(0)
+      const edgeThickness = uniform(1)
+      const visibleEdgeColor = uniform(new Color(0xffffff))
+      const hiddenEdgeColor = uniform(new Color(0xf3ff47))
 
       const outlinePass = outline(scene, camera, {
         selectedObjects: useViewer.getState().outliner.selectedObjects,
         edgeGlow,
         edgeThickness,
-      });
-      const { visibleEdge, hiddenEdge } = outlinePass;
+      })
+      const { visibleEdge, hiddenEdge } = outlinePass
 
       const outlineColor = visibleEdge
         .mul(visibleEdgeColor)
         .add(hiddenEdge.mul(hiddenEdgeColor))
-        .mul(edgeStrength);
+        .mul(edgeStrength)
 
-      return outlineColor;
+      return outlineColor
     }
     function generateHoverOutlinePass() {
-      const edgeStrength = uniform(5);
-      const edgeGlow = uniform(0.5);
-      const edgeThickness = uniform(1.5);
-      const pulsePeriod = uniform(3);
-      const visibleEdgeColor = uniform(new Color(0x00aaff));
-      const hiddenEdgeColor = uniform(new Color(0xf3ff47));
+      const edgeStrength = uniform(5)
+      const edgeGlow = uniform(0.5)
+      const edgeThickness = uniform(1.5)
+      const pulsePeriod = uniform(3)
+      const visibleEdgeColor = uniform(new Color(0x00aaff))
+      const hiddenEdgeColor = uniform(new Color(0xf3ff47))
 
       const outlinePass = outline(scene, camera, {
         selectedObjects: useViewer.getState().outliner.hoveredObjects,
         edgeGlow,
         edgeThickness,
-      });
-      const { visibleEdge, hiddenEdge } = outlinePass;
+      })
+      const { visibleEdge, hiddenEdge } = outlinePass
 
-      const period = time.div(pulsePeriod).mul(2);
-      const osc = oscSine(period).mul(0.5).add(0.5); // osc [ 0.5, 1.0 ]
+      const period = time.div(pulsePeriod).mul(2)
+      const osc = oscSine(period).mul(0.5).add(0.5) // osc [ 0.5, 1.0 ]
 
       const outlineColor = visibleEdge
         .mul(visibleEdgeColor)
         .add(hiddenEdge.mul(hiddenEdgeColor))
-        .mul(edgeStrength);
-      const outlinePulse = pulsePeriod
-        .greaterThan(0)
-        .select(outlineColor.mul(osc), outlineColor);
-      return outlinePulse;
+        .mul(edgeStrength)
+      const outlinePulse = pulsePeriod.greaterThan(0).select(outlineColor.mul(osc), outlineColor)
+      return outlinePulse
     }
 
     // Setup post-processing
-    const postProcessing = new PostProcessing(
-      renderer as unknown as WebGPURenderer,
-    );
+    const postProcessing = new PostProcessing(renderer as unknown as WebGPURenderer)
 
-    const selectedOutlinePass = generateSelectedOutlinePass();
-    const hoverOutlinePass = generateHoverOutlinePass();
+    const selectedOutlinePass = generateSelectedOutlinePass()
+    const hoverOutlinePass = generateHoverOutlinePass()
 
-    postProcessing.outputNode = selectedOutlinePass
-      .add(hoverOutlinePass)
-      .add(scenePass);
-    postProcessingRef.current = postProcessing;
+    // Combine SSGI output with outlines
+    const finalOutput = SSGI_PARAMS.enabled
+      ? selectedOutlinePass.add(hoverOutlinePass).add(traaPass)
+      : selectedOutlinePass.add(hoverOutlinePass).add(scenePassColor)
+
+    postProcessing.outputNode = finalOutput
+    postProcessingRef.current = postProcessing
 
     return () => {
       if (postProcessingRef.current) {
-        postProcessingRef.current.dispose();
+        postProcessingRef.current.dispose()
       }
-      postProcessingRef.current = null;
-    };
-  }, [renderer, scene, camera]);
+      postProcessingRef.current = null
+    }
+  }, [renderer, scene, camera])
 
   useFrame(() => {
     if (postProcessingRef.current) {
-      postProcessingRef.current.render();
+      postProcessingRef.current.render()
     }
-  }, 1);
+  }, 1)
 
-  return null;
-};
+  return null
+}
 
-export default PostProcessingPasses;
+export default PostProcessingPasses
diff --git a/packages/viewer/src/systems/wall/wall-cutout.tsx b/packages/viewer/src/systems/wall/wall-cutout.tsx
index 6a3bd110..b9ee4f53 100644
--- a/packages/viewer/src/systems/wall/wall-cutout.tsx
+++ b/packages/viewer/src/systems/wall/wall-cutout.tsx
@@ -42,6 +42,8 @@ const invsibleWallMaterial = new MeshStandardNodeMaterial({
 })
 const wallMaterial = new MeshStandardNodeMaterial({
   color: 'white',
+  roughness: 1,
+  metalness: 0,
 })
 
 export const WallCutout = () => {