Now that we have material version auto update support, I remove the old opacity.doubleSided property and added a rename versionUpdate step to rename it to general.doubleSided.

Signed-off-by: santorac <55155825+santorac@users.noreply.github.com>

Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR.materialtype

@@ -1,6 +1,14 @@
 {
     "description": "Material Type with properties used to define Enhanced PBR, a metallic-roughness Physically-Based Rendering (PBR) material shading model, with advanced features like subsurface scattering, transmission, and anisotropy.",
-    "version": 3,
+    "version": 4,
+    "versionUpdates": [
+        {
+            "toVersion": 4,
+            "actions": [
+                {"op": "rename", "from": "opacity.doubleSided", "to": "general.doubleSided"}
+            ]
+        }
+    ],
     "propertyLayout": {
         "groups": [
             {
@@ -715,12 +723,6 @@
                         "name": "m_opacityFactor"
                     }
                 },
-                {
-                    "name": "doubleSided",
-                    "displayName": "Double-sided",
-                    "description": "Whether to render back-faces or just front-faces.",
-                    "type": "Bool"
-                },
                 {
                     "name": "alphaAffectsSpecular",
                     "displayName": "Alpha affects specular",

Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR.materialtype

@@ -1,6 +1,14 @@
 {
     "description": "Material Type with properties used to define Standard PBR, a metallic-roughness Physically-Based Rendering (PBR) material shading model.",
-    "version": 3,
+    "version": 4,
+    "versionUpdates": [
+        {
+            "toVersion": 4,
+            "actions": [
+                {"op": "rename", "from": "opacity.doubleSided", "to": "general.doubleSided"}
+            ]
+        }
+    ],
     "propertyLayout": {
         "groups": [
             {
@@ -656,12 +664,6 @@
                         "name": "m_opacityFactor"
                     }
                 },
-                {
-                    "name": "doubleSided",
-                    "displayName": "Double-sided",
-                    "description": "Whether to render back-faces or just front-faces.",
-                    "type": "Bool"
-                },
                 {
                     "name": "alphaAffectsSpecular",
                     "displayName": "Alpha affects specular",

Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_HandleOpacityDoubleSided.lua

@@ -10,7 +10,7 @@
 ----------------------------------------------------------------------------------------------------
 
 function GetMaterialPropertyDependencies()
-    return {"general.doubleSided", "opacity.doubleSided", "opacity.mode"}
+    return {"general.doubleSided"}
 end
  
 ForwardPassIndex = 0
@@ -18,11 +18,9 @@ ForwardPassEdsIndex = 1
 
 function Process(context)
     local doubleSided = context:GetMaterialPropertyValue_bool("general.doubleSided")
-    local opacityDoubleSided = context:GetMaterialPropertyValue_bool("opacity.doubleSided")
-    local opacityMode = context:GetMaterialPropertyValue_enum("opacity.mode")
     local lastShader = context:GetShaderCount() - 1;
 
-    if(doubleSided or (opacityDoubleSided and opacityMode ~= 0)) then
+    if(doubleSided) then
         for i=0,lastShader do
             context:GetShader(i):GetRenderStatesOverride():SetCullMode(CullMode_None)
         end