diff --git a/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_ForwardPass.azsl b/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_ForwardPass.azsl
index de97a2f8d2..3b2a9b8e42 100644
--- a/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_ForwardPass.azsl
+++ b/Gems/Atom/Feature/Common/Assets/Materials/Types/EnhancedPBR_ForwardPass.azsl
@@ -219,9 +219,9 @@ PbrLightingOutput ForwardPassPS_Common(VSOutput IN, bool isFrontFace, out float
     // ------- Specular -------
 
     float2 specularUv = IN.m_uv[MaterialSrg::m_specularF0MapUvIndex];
-    float specularF0 = GetSpecularInput(MaterialSrg::m_specularF0Map, MaterialSrg::m_sampler, specularUv, MaterialSrg::m_specularF0Factor, o_specularF0_useTexture);
+    float specularF0Factor = GetSpecularInput(MaterialSrg::m_specularF0Map, MaterialSrg::m_sampler, specularUv, MaterialSrg::m_specularF0Factor, o_specularF0_useTexture);
 
-    surface.SetAlbedoAndSpecularF0(baseColor, specularF0, metallic);
+    surface.SetAlbedoAndSpecularF0(baseColor, specularF0Factor, metallic);
 
     // ------- Roughness -------
 
diff --git a/Gems/Atom/Feature/Common/Assets/Materials/Types/Skin.azsl b/Gems/Atom/Feature/Common/Assets/Materials/Types/Skin.azsl
index e59196c558..84095ac163 100644
--- a/Gems/Atom/Feature/Common/Assets/Materials/Types/Skin.azsl
+++ b/Gems/Atom/Feature/Common/Assets/Materials/Types/Skin.azsl
@@ -295,9 +295,9 @@ PbrLightingOutput SkinPS_Common(VSOutput IN)
     // ------- Specular -------
 
     float2 specularUv = IN.m_uv[MaterialSrg::m_specularF0MapUvIndex];
-    float specularF0 = GetSpecularInput(MaterialSrg::m_specularF0Map, MaterialSrg::m_sampler, specularUv, MaterialSrg::m_specularF0Factor, o_specularF0_useTexture);
+    float specularF0Factor = GetSpecularInput(MaterialSrg::m_specularF0Map, MaterialSrg::m_sampler, specularUv, MaterialSrg::m_specularF0Factor, o_specularF0_useTexture);
 
-    surface.SetAlbedoAndSpecularF0(baseColor, specularF0);
+    surface.SetAlbedoAndSpecularF0(baseColor, specularF0Factor);
 
     // ------- Roughness -------
 
diff --git a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_ForwardPass.azsl b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_ForwardPass.azsl
index 9e9543e449..560c7ab7eb 100644
--- a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_ForwardPass.azsl
+++ b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardMultilayerPBR_ForwardPass.azsl
@@ -270,9 +270,9 @@ PbrLightingOutput ForwardPassPS_Common(VSOutput IN, bool isFrontFace, out float
     float layer1_specularF0Factor = GetSpecularInput(MaterialSrg::m_layer1_m_specularF0Map, MaterialSrg::m_sampler, uvLayer1[MaterialSrg::m_layer1_m_specularF0MapUvIndex], MaterialSrg::m_layer1_m_specularF0Factor, o_layer1_o_specularF0_useTexture);
     float layer2_specularF0Factor = GetSpecularInput(MaterialSrg::m_layer2_m_specularF0Map, MaterialSrg::m_sampler, uvLayer2[MaterialSrg::m_layer2_m_specularF0MapUvIndex], MaterialSrg::m_layer2_m_specularF0Factor, o_layer2_o_specularF0_useTexture);
     float layer3_specularF0Factor = GetSpecularInput(MaterialSrg::m_layer3_m_specularF0Map, MaterialSrg::m_sampler, uvLayer3[MaterialSrg::m_layer3_m_specularF0MapUvIndex], MaterialSrg::m_layer3_m_specularF0Factor, o_layer3_o_specularF0_useTexture);
-    float specularF0 = BlendLayers(layer1_specularF0Factor, layer2_specularF0Factor, layer3_specularF0Factor, blendMaskValues);
+    float specularF0Factor = BlendLayers(layer1_specularF0Factor, layer2_specularF0Factor, layer3_specularF0Factor, blendMaskValues);
 
-    surface.SetAlbedoAndSpecularF0(baseColor, specularF0, metallic);
+    surface.SetAlbedoAndSpecularF0(baseColor, specularF0Factor, metallic);
 
     // ------- Roughness -------
 
diff --git a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_ForwardPass.azsl b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_ForwardPass.azsl
index f769033fd2..4989b56892 100644
--- a/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_ForwardPass.azsl
+++ b/Gems/Atom/Feature/Common/Assets/Materials/Types/StandardPBR_ForwardPass.azsl
@@ -178,9 +178,9 @@ PbrLightingOutput ForwardPassPS_Common(VSOutput IN, bool isFrontFace, out float
     // ------- Specular -------
 
     float2 specularUv = IN.m_uv[MaterialSrg::m_specularF0MapUvIndex];
-    float specularF0 = GetSpecularInput(MaterialSrg::m_specularF0Map, MaterialSrg::m_sampler, specularUv, MaterialSrg::m_specularF0Factor, o_specularF0_useTexture);
+    float specularF0Factor = GetSpecularInput(MaterialSrg::m_specularF0Map, MaterialSrg::m_sampler, specularUv, MaterialSrg::m_specularF0Factor, o_specularF0_useTexture);
 
-    surface.SetAlbedoAndSpecularF0(baseColor, specularF0, metallic);
+    surface.SetAlbedoAndSpecularF0(baseColor, specularF0Factor, metallic);
 
     // ------- Roughness -------
 
diff --git a/Gems/Atom/Feature/Common/Assets/ShaderLib/Atom/Features/PBR/Surfaces/BasePbrSurfaceData.azsli b/Gems/Atom/Feature/Common/Assets/ShaderLib/Atom/Features/PBR/Surfaces/BasePbrSurfaceData.azsli
index d17f89707d..ecb2a2f09b 100644
--- a/Gems/Atom/Feature/Common/Assets/ShaderLib/Atom/Features/PBR/Surfaces/BasePbrSurfaceData.azsli
+++ b/Gems/Atom/Feature/Common/Assets/ShaderLib/Atom/Features/PBR/Surfaces/BasePbrSurfaceData.azsli
@@ -43,7 +43,7 @@ class BasePbrSurfaceData
     void CalculateRoughnessA();
 
     //! Sets albedo and specularF0 using metallic workflow
-    void SetAlbedoAndSpecularF0(float3 baseColor, float inSpecularF0, float metallic);
+    void SetAlbedoAndSpecularF0(float3 baseColor, float specularF0Factor, float metallic);
 };
 
 // ------- Functions -------
@@ -85,9 +85,9 @@ void BasePbrSurfaceData::CalculateRoughnessA()
     }
 }
 
-void BasePbrSurfaceData::SetAlbedoAndSpecularF0(float3 baseColor, float inSpecularF0, float metallic)
+void BasePbrSurfaceData::SetAlbedoAndSpecularF0(float3 baseColor, float specularF0Factor, float metallic)
 {
-    float3 dielectricSpecularF0 = MaxDielectricSpecularF0 * inSpecularF0;
+    float3 dielectricSpecularF0 = MaxDielectricSpecularF0 * specularF0Factor;
 
     // Compute albedo and specularF0 based on metalness
     albedo = lerp(baseColor, float3(0.0f, 0.0f, 0.0f), metallic);
diff --git a/Gems/Atom/Feature/Common/Assets/ShaderLib/Atom/Features/PBR/Surfaces/EnhancedSurface.azsli b/Gems/Atom/Feature/Common/Assets/ShaderLib/Atom/Features/PBR/Surfaces/EnhancedSurface.azsli
index 9d4163c474..6a8d785a97 100644
--- a/Gems/Atom/Feature/Common/Assets/ShaderLib/Atom/Features/PBR/Surfaces/EnhancedSurface.azsli
+++ b/Gems/Atom/Feature/Common/Assets/ShaderLib/Atom/Features/PBR/Surfaces/EnhancedSurface.azsli
@@ -41,7 +41,7 @@ class Surface //: BasePbrSurfaceData
     void CalculateRoughnessA();
 
     //! Sets albedo and specularF0 using metallic workflow
-    void SetAlbedoAndSpecularF0(float3 baseColor, float inSpecularF0, float metallic);
+    void SetAlbedoAndSpecularF0(float3 baseColor, float specularF0Factor, float metallic);
 
 };
 
@@ -80,9 +80,9 @@ void Surface::CalculateRoughnessA()
     }
 }
 
-void Surface::SetAlbedoAndSpecularF0(float3 baseColor, float inSpecularF0, float metallic)
+void Surface::SetAlbedoAndSpecularF0(float3 baseColor, float specularF0Factor, float metallic)
 {
-    float3 dielectricSpecularF0 = MaxDielectricSpecularF0 * inSpecularF0;
+    float3 dielectricSpecularF0 = MaxDielectricSpecularF0 * specularF0Factor;
 
     // Compute albedo and specularF0 based on metalness
     albedo = lerp(baseColor, float3(0.0f, 0.0f, 0.0f), metallic);
diff --git a/Gems/Atom/Feature/Common/Assets/ShaderLib/Atom/Features/PBR/Surfaces/SkinSurface.azsli b/Gems/Atom/Feature/Common/Assets/ShaderLib/Atom/Features/PBR/Surfaces/SkinSurface.azsli
index 5092414a11..ffbb12e09d 100644
--- a/Gems/Atom/Feature/Common/Assets/ShaderLib/Atom/Features/PBR/Surfaces/SkinSurface.azsli
+++ b/Gems/Atom/Feature/Common/Assets/ShaderLib/Atom/Features/PBR/Surfaces/SkinSurface.azsli
@@ -40,7 +40,7 @@ class Surface //: BasePbrSurfaceData
     void CalculateRoughnessA();
 
     //! Sets albedo and specularF0 using metallic workflow
-    void SetAlbedoAndSpecularF0(float3 baseColor, float inSpecularF0);
+    void SetAlbedoAndSpecularF0(float3 baseColor, float specularF0Factor);
 
 };
 
@@ -79,9 +79,9 @@ void Surface::CalculateRoughnessA()
     }
 }
 
-void Surface::SetAlbedoAndSpecularF0(float3 baseColor, float inSpecularF0)
+void Surface::SetAlbedoAndSpecularF0(float3 baseColor, float specularF0Factor)
 {
     albedo = baseColor;
-    specularF0 = MaxDielectricSpecularF0 * inSpecularF0;
+    specularF0 = MaxDielectricSpecularF0 * specularF0Factor;
 }
 
diff --git a/Gems/Atom/Feature/Common/Assets/ShaderLib/Atom/Features/PBR/Surfaces/StandardSurface.azsli b/Gems/Atom/Feature/Common/Assets/ShaderLib/Atom/Features/PBR/Surfaces/StandardSurface.azsli
index e6ca84c19e..e5a0a0efad 100644
--- a/Gems/Atom/Feature/Common/Assets/ShaderLib/Atom/Features/PBR/Surfaces/StandardSurface.azsli
+++ b/Gems/Atom/Feature/Common/Assets/ShaderLib/Atom/Features/PBR/Surfaces/StandardSurface.azsli
@@ -40,7 +40,7 @@ class Surface //: BasePbrSurfaceData
     void CalculateRoughnessA();
 
     //! Sets albedo and specularF0 using metallic workflow
-    void SetAlbedoAndSpecularF0(float3 baseColor, float inSpecularF0, float metallic);
+    void SetAlbedoAndSpecularF0(float3 baseColor, float specularF0Factor, float metallic);
 
 };
 
@@ -79,9 +79,9 @@ void Surface::CalculateRoughnessA()
     }
 }
 
-void Surface::SetAlbedoAndSpecularF0(float3 baseColor, float inSpecularF0, float metallic)
+void Surface::SetAlbedoAndSpecularF0(float3 baseColor, float specularF0Factor, float metallic)
 {
-    float3 dielectricSpecularF0 = MaxDielectricSpecularF0 * inSpecularF0;
+    float3 dielectricSpecularF0 = MaxDielectricSpecularF0 * specularF0Factor;
 
     // Compute albedo and specularF0 based on metalness
     albedo = lerp(baseColor, float3(0.0f, 0.0f, 0.0f), metallic);
diff --git a/Gems/Atom/TestData/TestData/Materials/Types/AutoBrick_ForwardPass.azsl b/Gems/Atom/TestData/TestData/Materials/Types/AutoBrick_ForwardPass.azsl
index 1da4973b1a..3373c90a81 100644
--- a/Gems/Atom/TestData/TestData/Materials/Types/AutoBrick_ForwardPass.azsl
+++ b/Gems/Atom/TestData/TestData/Materials/Types/AutoBrick_ForwardPass.azsl
@@ -176,8 +176,8 @@ ForwardPassOutput AutoBrick_ForwardPassPS(VSOutput IN)
 
     // Albedo, SpecularF0
     const float metallic = 0.0f;
-    const float specularF0 = 0.5f;
-    surface.SetAlbedoAndSpecularF0(baseColor, specularF0, metallic);
+    const float specularF0Factor = 0.5f;
+    surface.SetAlbedoAndSpecularF0(baseColor, specularF0Factor, metallic);
 
     // Clear Coat, Transmission
     surface.clearCoat.InitializeToZero();
diff --git a/Gems/Atom/TestData/TestData/Materials/Types/MinimalPBR_ForwardPass.azsl b/Gems/Atom/TestData/TestData/Materials/Types/MinimalPBR_ForwardPass.azsl
index 57b1381f9c..96d5f05e6e 100644
--- a/Gems/Atom/TestData/TestData/Materials/Types/MinimalPBR_ForwardPass.azsl
+++ b/Gems/Atom/TestData/TestData/Materials/Types/MinimalPBR_ForwardPass.azsl
@@ -71,8 +71,8 @@ ForwardPassOutput MinimalPBR_MainPassPS(VSOutput IN)
     surface.CalculateRoughnessA();
 
     // Albedo, SpecularF0
-    const float specularF0 = 0.5f;
-    surface.SetAlbedoAndSpecularF0(MinimalPBRSrg::m_baseColor, specularF0, MinimalPBRSrg::m_metallic);
+    const float specularF0Factor = 0.5f;
+    surface.SetAlbedoAndSpecularF0(MinimalPBRSrg::m_baseColor, specularF0Factor, MinimalPBRSrg::m_metallic);
 
     // Clear Coat, Transmission
     surface.clearCoat.InitializeToZero();