diff --git a/Gems/AtomContent/Sponza/ArtSource/objects/sponza_cleanup.mb b/Gems/AtomContent/Sponza/ArtSource/objects/sponza_cleanup.mb
new file mode 100644
index 0000000000..882496f2b0
--- /dev/null
+++ b/Gems/AtomContent/Sponza/ArtSource/objects/sponza_cleanup.mb
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:9d3c18d76f00688d15c54736ef3d8c953df08baf46a796fa71627de18bdb3c0f
+size 22804332
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza.fbx b/Gems/AtomContent/Sponza/Assets/objects/sponza.fbx
index 80cb76941e..9061666968 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza.fbx
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza.fbx
@@ -1,3 +1,3 @@
 version https://git-lfs.github.com/spec/v1
-oid sha256:6cbfc4d0a6722726070468da4368df7c76be67e8d067a7e3130fd29cdcdd5c6b
-size 7613840
+oid sha256:35a880abc018520d4b30d21a64f7a14fca74d936593320d5afd03ddf25771bf3
+size 9176416
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_arch.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_arch.material
index 8f5edb6968..da72f8a430 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_arch.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_arch.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/arch_1k_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,6 +17,17 @@
             ],
             "textureMap": "Textures/arch_1k_basecolor.png"
         },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                1.0,
+                0.885053813457489,
+                0.801281750202179,
+                1.0
+            ]
+        },
         "metallic": {
             "textureMap": "Textures/arch_1k_metallic.png"
         },
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_background.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_background.material
index 5ba48a758e..5a195fd0b6 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_background.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_background.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/background_1k_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,6 +17,23 @@
             ],
             "textureMap": "Textures/background_1k_basecolor.png"
         },
+        "clearCoat": {
+            "enable": true,
+            "factor": 0.5,
+            "normalMap": "Textures/background_1k_normal.jpg",
+            "roughness": 0.4000000059604645
+        },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                1.0,
+                0.8911573886871338,
+                0.7894102334976196,
+                1.0
+            ]
+        },
         "metallic": {
             "textureMap": "Textures/background_1k_metallic.png"
         },
@@ -24,7 +45,6 @@
         },
         "parallax": {
             "algorithm": "POM",
-            "enable": true,
             "factor": 0.03099999949336052,
             "pdo": true,
             "quality": "High",
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_bricks.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_bricks.material
index c32beebd5c..d2089b5537 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_bricks.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_bricks.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/bricks_1k_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,6 +17,23 @@
             ],
             "textureMap": "Textures/bricks_1k_basecolor.png"
         },
+        "clearCoat": {
+            "enable": true,
+            "factor": 0.5,
+            "normalMap": "Textures/bricks_1k_normal.jpg",
+            "roughness": 0.5
+        },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                1.0,
+                0.9703211784362793,
+                0.9703211784362793,
+                1.0
+            ]
+        },
         "metallic": {
             "textureMap": "Textures/bricks_1k_metallic.png"
         },
@@ -23,11 +44,9 @@
             "factor": 1.0
         },
         "parallax": {
-            "algorithm": "POM",
-            "enable": true,
+            "algorithm": "ContactRefinement",
             "factor": 0.03500000014901161,
-            "pdo": true,
-            "quality": "High",
+            "quality": "Medium",
             "textureMap": "Textures/bricks_1k_height.png"
         },
         "roughness": {
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_ceiling.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_ceiling.material
index cbccd8ed88..40e476305d 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_ceiling.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_ceiling.material
@@ -4,17 +4,55 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/ceiling_1k_ao.png"
+        },
         "baseColor": {
+            "textureBlendMode": "Lerp",
+            "textureMap": "Textures/ceiling_1k_basecolor.png"
+        },
+        "clearCoat": {
+            "enable": true,
+            "factor": 0.5,
+            "influenceMap": "Textures/ceiling_1k_ao.png",
+            "normalMap": "Textures/ceiling_1k_normal.png",
+            "roughness": 0.30000001192092898
+        },
+        "emissive": {
             "color": [
-                0.800000011920929,
-                0.800000011920929,
-                0.800000011920929,
+                0.0,
+                0.0,
+                0.0,
                 1.0
-            ],
-            "textureMap": "Textures/ceiling_1k_basecolor.png"
+            ]
+        },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                1.0,
+                0.7591058015823364,
+                0.43776607513427737,
+                1.0
+            ]
+        },
+        "normal": {
+            "textureMap": "Textures/ceiling_1k_normal.png"
         },
         "opacity": {
             "factor": 1.0
+        },
+        "parallax": {
+            "algorithm": "ContactRefinement",
+            "factor": 0.019999999552965165,
+            "pdo": true,
+            "quality": "Medium",
+            "textureMap": "Textures/ceiling_1k_height.png"
+        },
+        "roughness": {
+            "textureMap": "Textures/ceiling_1k_roughness.png"
         }
     }
 }
\ No newline at end of file
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_chain.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_chain.material
index cdb28a8a6f..4e39112383 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_chain.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_chain.material
@@ -13,6 +13,17 @@
             ],
             "textureMap": "Textures/chain_basecolor.png"
         },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                0.4891279339790344,
+                0.7931944727897644,
+                1.0,
+                1.0
+            ]
+        },
         "metallic": {
             "textureMap": "Textures/chain_alpha.png"
         },
@@ -21,7 +32,7 @@
         },
         "opacity": {
             "alphaSource": "Split",
-            "factor": 1.0,
+            "factor": 0.30000001192092898,
             "mode": "Cutout",
             "textureMap": "Textures/chain_alpha.png"
         },
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_columna.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_columna.material
index 1889e33313..6c89c94021 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_columna.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_columna.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/columnA_1k_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,6 +17,23 @@
             ],
             "textureMap": "Textures/columnA_1k_basecolor.png"
         },
+        "clearCoat": {
+            "enable": true,
+            "factor": 0.5,
+            "normalMap": "Textures/columnA_1k_normal.jpg",
+            "roughness": 0.30000001192092898
+        },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                1.0,
+                0.8964369893074036,
+                0.8264744281768799,
+                1.0
+            ]
+        },
         "metallic": {
             "textureMap": "Textures/columnA_1k_metallic.png"
         },
@@ -24,7 +45,6 @@
         },
         "parallax": {
             "algorithm": "POM",
-            "enable": true,
             "factor": 0.017000000923871995,
             "pdo": true,
             "quality": "High",
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_columnb.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_columnb.material
index 095afc0ab1..0be26ba553 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_columnb.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_columnb.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/columnB_1k_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,6 +17,23 @@
             ],
             "textureMap": "Textures/columnB_1k_basecolor.png"
         },
+        "clearCoat": {
+            "enable": true,
+            "factor": 0.5,
+            "normalMap": "Textures/columnB_1k_normal.jpg",
+            "roughness": 0.30000001192092898
+        },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                1.0,
+                0.9015335440635681,
+                0.8348516225814819,
+                1.0
+            ]
+        },
         "metallic": {
             "textureMap": "Textures/columnB_1k_metallic.png"
         },
@@ -23,7 +44,6 @@
             "factor": 1.0
         },
         "parallax": {
-            "enable": true,
             "factor": 0.020999999716877939,
             "pdo": true,
             "quality": "High",
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_columnc.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_columnc.material
index e78cb485cc..2f1512fa4a 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_columnc.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_columnc.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/columnC_1k_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,6 +17,23 @@
             ],
             "textureMap": "Textures/columnC_1k_basecolor.png"
         },
+        "clearCoat": {
+            "enable": true,
+            "factor": 0.5,
+            "normalMap": "Textures/columnC_1k_normal.jpg",
+            "roughness": 0.30000001192092898
+        },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                0.9050736427307129,
+                0.9050736427307129,
+                1.0,
+                1.0
+            ]
+        },
         "metallic": {
             "textureMap": "Textures/columnC_1k_metallic.png"
         },
@@ -24,7 +45,6 @@
         },
         "parallax": {
             "algorithm": "POM",
-            "enable": true,
             "factor": 0.014000000432133675,
             "pdo": true,
             "quality": "High",
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_curtainblue.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_curtainblue.material
index 62942faa87..e68bc7a41a 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_curtainblue.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_curtainblue.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/curtain_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,10 +17,22 @@
             ],
             "textureMap": "Textures/curtainBlue_1k_basecolor.png"
         },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                0.06195162981748581,
+                0.2056153267621994,
+                1.0,
+                1.0
+            ]
+        },
         "metallic": {
             "textureMap": "Textures/curtain_metallic.png"
         },
         "normal": {
+            "factor": 0.5,
             "textureMap": "Textures/curtain_normal.jpg"
         },
         "opacity": {
@@ -24,6 +40,9 @@
         },
         "roughness": {
             "textureMap": "Textures/curtain_roughness.png"
+        },
+        "specularF0": {
+            "enableMultiScatterCompensation": true
         }
     }
 }
\ No newline at end of file
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_curtaingreen.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_curtaingreen.material
index 3284cfa837..85a5ef9775 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_curtaingreen.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_curtaingreen.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/curtain_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,10 +17,22 @@
             ],
             "textureMap": "Textures/curtainGreen_1k_basecolor.png"
         },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                0.0,
+                1.0,
+                0.029526207596063615,
+                1.0
+            ]
+        },
         "metallic": {
             "textureMap": "Textures/curtain_metallic.png"
         },
         "normal": {
+            "factor": 0.5,
             "textureMap": "Textures/curtain_normal.jpg"
         },
         "opacity": {
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_curtainred.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_curtainred.material
index d07cf6d172..086f34727c 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_curtainred.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_curtainred.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/curtain_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,6 +17,17 @@
             ],
             "textureMap": "Textures/curtainRed_1k_basecolor.png"
         },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                1.0,
+                0.023315785452723504,
+                0.048538949340581897,
+                1.0
+            ]
+        },
         "metallic": {
             "textureMap": "Textures/curtain_metallic.png"
         },
@@ -24,6 +39,12 @@
         },
         "roughness": {
             "textureMap": "Textures/curtain_roughness.png"
+        },
+        "uv": {
+            "center": [
+                16.0,
+                0.0
+            ]
         }
     }
 }
\ No newline at end of file
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_details.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_details.material
index fc5f5761d8..18bd2a307b 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_details.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_details.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/details_1k_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,6 +17,15 @@
             ],
             "textureMap": "Textures/details_1k_basecolor.png"
         },
+        "clearCoat": {
+            "enable": true,
+            "factor": 0.5,
+            "normalMap": "Textures/details_1k_normal.png",
+            "roughness": 0.25
+        },
+        "general": {
+            "applySpecularAA": true
+        },
         "metallic": {
             "textureMap": "Textures/details_1k_metallic.png"
         },
@@ -24,7 +37,6 @@
         },
         "parallax": {
             "algorithm": "POM",
-            "enable": true,
             "factor": 0.02500000037252903,
             "pdo": true,
             "textureMap": "Textures/details_1k_height.png"
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_fabricblue.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_fabricblue.material
index 3a555c0824..fb0490f9a9 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_fabricblue.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_fabricblue.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/fabric_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,10 +17,22 @@
             ],
             "textureMap": "Textures/fabricBlue_1k_basecolor.png"
         },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                0.0,
+                0.15049973130226136,
+                1.0,
+                1.0
+            ]
+        },
         "metallic": {
             "textureMap": "Textures/fabric_metallic.png"
         },
         "normal": {
+            "factor": 0.5,
             "textureMap": "Textures/fabric_normal.jpg"
         },
         "opacity": {
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_fabricgreen.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_fabricgreen.material
index 6a95d0d275..c6074bf894 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_fabricgreen.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_fabricgreen.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/fabric_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,10 +17,22 @@
             ],
             "textureMap": "Textures/fabricGreen_1k_basecolor.png"
         },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                0.0,
+                1.0,
+                0.15378041565418244,
+                1.0
+            ]
+        },
         "metallic": {
             "textureMap": "Textures/fabric_metallic.png"
         },
         "normal": {
+            "factor": 0.5,
             "textureMap": "Textures/fabric_normal.jpg"
         },
         "opacity": {
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_fabricred.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_fabricred.material
index 2558c86819..4215d8dde5 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_fabricred.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_fabricred.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/fabric_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,10 +17,22 @@
             ],
             "textureMap": "Textures/fabricRed_1k_basecolor.png"
         },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                1.0,
+                0.08197146654129029,
+                0.10267795622348786,
+                1.0
+            ]
+        },
         "metallic": {
             "textureMap": "Textures/fabric_metallic.png"
         },
         "normal": {
+            "factor": 0.5,
             "textureMap": "Textures/fabric_normal.jpg"
         },
         "opacity": {
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_flagpole.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_flagpole.material
index c13baae474..cbba302103 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_flagpole.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_flagpole.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/flagpole_1k_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,6 +17,17 @@
             ],
             "textureMap": "Textures/flagpole_1k_basecolor.png"
         },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                1.0,
+                0.6520485281944275,
+                0.7122911214828491,
+                1.0
+            ]
+        },
         "metallic": {
             "textureMap": "Textures/flagpole_1k_metallic.png"
         },
@@ -24,7 +39,6 @@
         },
         "parallax": {
             "algorithm": "POM",
-            "enable": true,
             "factor": 0.014000000432133675,
             "pdo": true,
             "quality": "High",
@@ -32,6 +46,9 @@
         },
         "roughness": {
             "textureMap": "Textures/flagpole_1k_roughness.png"
+        },
+        "specularF0": {
+            "enableMultiScatterCompensation": true
         }
     }
 }
\ No newline at end of file
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_floor.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_floor.material
index cb4affe1cf..2c2abe3931 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_floor.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_floor.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/floor_1k_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,6 +17,23 @@
             ],
             "textureMap": "Textures/floor_1k_basecolor.png"
         },
+        "clearCoat": {
+            "enable": true,
+            "influenceMap": "Textures/floor_1k_ao.png",
+            "normalMap": "Textures/floor_1k_normal.png",
+            "roughness": 0.25
+        },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                1.0,
+                0.9404135346412659,
+                0.8688944578170776,
+                1.0
+            ]
+        },
         "normal": {
             "textureMap": "Textures/floor_1k_normal.png"
         },
@@ -21,7 +42,6 @@
         },
         "parallax": {
             "algorithm": "POM",
-            "enable": true,
             "factor": 0.012000000104308129,
             "pdo": true,
             "textureMap": "Textures/floor_1k_height.png"
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_leaf.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_leaf.material
index bb226d14cb..4508a68f3f 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_leaf.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_leaf.material
@@ -13,6 +13,23 @@
             ],
             "textureMap": "Textures/thorn_basecolor.png"
         },
+        "clearCoat": {
+            "enable": true,
+            "factor": 0.05000000074505806,
+            "normalMap": "Textures/thorn_normal.jpg",
+            "roughness": 0.10000000149011612
+        },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                0.46506446599960329,
+                1.0,
+                0.3944609761238098,
+                1.0
+            ]
+        },
         "metallic": {
             "textureMap": "Textures/thorn_metallic.png"
         },
@@ -20,7 +37,8 @@
             "textureMap": "Textures/thorn_normal.jpg"
         },
         "opacity": {
-            "factor": 0.5699999928474426,
+            "doubleSided": true,
+            "factor": 0.20000000298023225,
             "mode": "Cutout"
         },
         "parallax": {
@@ -28,6 +46,25 @@
         },
         "roughness": {
             "textureMap": "Textures/thorn_roughness.png"
+        },
+        "subsurfaceScattering": {
+            "enableSubsurfaceScattering": true,
+            "quality": 1.0,
+            "scatterColor": [
+                0.28143739700317385,
+                1.0,
+                0.13000686466693879,
+                1.0
+            ],
+            "scatterDistance": 1.0,
+            "thickness": 0.10000000149011612,
+            "transmissionMode": "ThinObject",
+            "transmissionTint": [
+                0.07225146889686585,
+                0.16981765627861024,
+                0.04444953054189682,
+                1.0
+            ]
         }
     }
 }
\ No newline at end of file
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_lion.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_lion.material
index 4b47e1b7a1..55f44b2f63 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_lion.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_lion.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/lion_1k_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,6 +17,17 @@
             ],
             "textureMap": "Textures/lion_1k_basecolor.png"
         },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                1.0,
+                0.7364919781684876,
+                0.3672388792037964,
+                1.0
+            ]
+        },
         "metallic": {
             "textureMap": "Textures/lion_1k_metallic.png"
         },
@@ -23,14 +38,18 @@
             "factor": 1.0
         },
         "parallax": {
-            "algorithm": "POM",
+            "algorithm": "ContactRefinement",
             "enable": true,
-            "factor": 0.023000000044703485,
+            "factor": 0.009999999776482582,
             "pdo": true,
+            "quality": "Ultra",
             "textureMap": "Textures/lion_1k_height.png"
         },
         "roughness": {
             "textureMap": "Textures/lion_1k_roughness.png"
+        },
+        "specularF0": {
+            "enableMultiScatterCompensation": true
         }
     }
 }
\ No newline at end of file
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_roof.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_roof.material
index 3b245b251f..a64486309d 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_roof.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_roof.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/roof_1k_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -11,24 +15,27 @@
                 0.800000011920929,
                 1.0
             ],
+            "textureBlendMode": "Lerp",
             "textureMap": "Textures/roof_1k_basecolor.png"
         },
+        "general": {
+            "applySpecularAA": true
+        },
         "metallic": {
-            "factor": 0.009999999776482582,
             "useTexture": false
         },
         "normal": {
+            "factor": 0.5,
+            "flipY": true,
             "textureMap": "Textures/roof_1k_normal.jpg"
         },
         "opacity": {
             "factor": 1.0
         },
         "parallax": {
-            "algorithm": "POM",
-            "enable": true,
+            "algorithm": "ContactRefinement",
             "factor": 0.019999999552965165,
-            "pdo": true,
-            "quality": "High",
+            "quality": "Medium",
             "textureMap": "Textures/roof_1k_height.png"
         },
         "roughness": {
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_vase.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_vase.material
index e471de4ab9..867943642e 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_vase.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_vase.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/vase_1k_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,6 +17,17 @@
             ],
             "textureMap": "Textures/vase_1k_basecolor.png"
         },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                1.0,
+                0.8713664412498474,
+                0.6021667718887329,
+                1.0
+            ]
+        },
         "metallic": {
             "textureMap": "Textures/vase_1k_metallic.png"
         },
@@ -24,7 +39,6 @@
         },
         "parallax": {
             "algorithm": "POM",
-            "enable": true,
             "factor": 0.027000000700354577,
             "pdo": true,
             "quality": "High",
@@ -32,6 +46,9 @@
         },
         "roughness": {
             "textureMap": "Textures/vase_1k_roughness.png"
+        },
+        "specularF0": {
+            "enableMultiScatterCompensation": true
         }
     }
 }
\ No newline at end of file
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_vasehanging.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_vasehanging.material
index 6bb8a205d1..9e96fb983d 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_vasehanging.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_vasehanging.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/vaseHanging_1k_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,6 +17,17 @@
             ],
             "textureMap": "Textures/vaseHanging_1k_basecolor.png"
         },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                0.765606164932251,
+                1.0,
+                0.7052567601203919,
+                1.0
+            ]
+        },
         "metallic": {
             "textureMap": "Textures/vaseHanging_1k_metallic.png"
         },
@@ -24,7 +39,6 @@
         },
         "parallax": {
             "algorithm": "POM",
-            "enable": true,
             "factor": 0.04600000008940697,
             "pdo": true,
             "quality": "High",
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_vaseplant.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_vaseplant.material
index 0fe458b4ac..c5bfe5c6b4 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_vaseplant.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_vaseplant.material
@@ -13,9 +13,39 @@
             ],
             "textureMap": "Textures/vasePlant_1k_basecolor.png"
         },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                0.6788738965988159,
+                1.0,
+                0.026138704270124437,
+                1.0
+            ]
+        },
         "opacity": {
-            "factor": 0.8399999737739563,
+            "doubleSided": true,
+            "factor": 0.28999999165534975,
             "mode": "Cutout"
+        },
+        "subsurfaceScattering": {
+            "enableSubsurfaceScattering": true,
+            "quality": 1.0,
+            "scatterColor": [
+                0.07421988248825073,
+                0.10223544389009476,
+                0.0,
+                1.0
+            ],
+            "subsurfaceScatterFactor": 0.0,
+            "transmissionMode": "ThinObject",
+            "transmissionTint": [
+                0.33716335892677309,
+                0.4620737135410309,
+                0.0,
+                1.0
+            ]
         }
     }
 }
\ No newline at end of file
diff --git a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_vaseround.material b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_vaseround.material
index d2ef595c0d..ebb4e537f5 100644
--- a/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_vaseround.material
+++ b/Gems/AtomContent/Sponza/Assets/objects/sponza_mat_vaseround.material
@@ -4,6 +4,10 @@
     "parentMaterial": "",
     "propertyLayoutVersion": 3,
     "properties": {
+        "ambientOcclusion": {
+            "enable": true,
+            "textureMap": "Textures/vaseRound_1k_ao.png"
+        },
         "baseColor": {
             "color": [
                 0.800000011920929,
@@ -13,6 +17,24 @@
             ],
             "textureMap": "Textures/vaseRound_1k_basecolor.png"
         },
+        "clearCoat": {
+            "enable": true,
+            "factor": 0.5,
+            "influenceMap": "Textures/vaseRound_1k_ao.png",
+            "normalMap": "Textures/vaseRound_1k_normal.jpg",
+            "roughness": 0.25
+        },
+        "general": {
+            "applySpecularAA": true
+        },
+        "irradiance": {
+            "color": [
+                1.0,
+                0.5939116477966309,
+                0.29176774621009829,
+                1.0
+            ]
+        },
         "normal": {
             "textureMap": "Textures/vaseRound_1k_normal.jpg"
         },
@@ -21,7 +43,6 @@
         },
         "parallax": {
             "algorithm": "POM",
-            "enable": true,
             "factor": 0.019999999552965165,
             "pdo": true,
             "quality": "High",
@@ -29,6 +50,9 @@
         },
         "roughness": {
             "textureMap": "Textures/vaseRound_1k_roughness.png"
+        },
+        "specularF0": {
+            "enableMultiScatterCompensation": true
         }
     }
 }
\ No newline at end of file