diff --git a/examples/open_pbr_brass.mtlx b/examples/open_pbr_brass.mtlx
index 66b4359e..61a8281e 100644
--- a/examples/open_pbr_brass.mtlx
+++ b/examples/open_pbr_brass.mtlx
@@ -6,7 +6,7 @@
   <open_pbr_surface name="open_pbr_surface_surfaceshader" type="surfaceshader">
     <input name="base_color" type="color3" value="0.844, 0.782, 0.473" />
     <input name="base_metalness" type="float" value="1.0" />
-    <input name="specular_color" type="color3" value="0.963, 0.977, 1.013" />
+    <input name="specular_color" type="color3" value="0.950, 0.964, 1.0" />
     <input name="specular_roughness" type="float" value="0.02" />
   </open_pbr_surface>
 </materialx>
\ No newline at end of file
diff --git a/examples/open_pbr_cesium.mtlx b/examples/open_pbr_cesium.mtlx
index 4fba86ed..7745dd9c 100644
--- a/examples/open_pbr_cesium.mtlx
+++ b/examples/open_pbr_cesium.mtlx
@@ -6,7 +6,7 @@
   <open_pbr_surface name="open_pbr_surface_surfaceshader" type="surfaceshader">
     <input name="base_color" type="color3" value="0.633, 0.561, 0.299" />
     <input name="base_metalness" type="float" value="1.0" />
-    <input name="specular_color" type="color3" value="1.128, 1.175, 1.394" />
+    <input name="specular_color" type="color3" value="0.809, 0.843, 1.0" />
     <input name="specular_roughness" type="float" value="0.02" />
   </open_pbr_surface>
 </materialx>
\ No newline at end of file
diff --git a/examples/open_pbr_gold.mtlx b/examples/open_pbr_gold.mtlx
index 3bdb43d2..52e0b105 100644
--- a/examples/open_pbr_gold.mtlx
+++ b/examples/open_pbr_gold.mtlx
@@ -6,7 +6,7 @@
   <open_pbr_surface name="open_pbr_surface_surfaceshader" type="surfaceshader">
     <input name="base_color" type="color3" value="0.929, 0.788, 0.374" />
     <input name="base_metalness" type="float" value="1.0" />
-    <input name="specular_color" type="color3" value="0.987, 1.013, 0.997" />
+    <input name="specular_color" type="color3" value="0.974, 1.0, 0.984" />
     <input name="specular_roughness" type="float" value="0.02" />
   </open_pbr_surface>
 </materialx>
\ No newline at end of file
diff --git a/examples/open_pbr_light_bulb_2700k.mtlx b/examples/open_pbr_light_bulb_2700k.mtlx
index a84de620..45c8952f 100644
--- a/examples/open_pbr_light_bulb_2700k.mtlx
+++ b/examples/open_pbr_light_bulb_2700k.mtlx
@@ -4,6 +4,7 @@
     <input name="surfaceshader" type="surfaceshader" nodename="open_pbr_surface_surfaceshader" />
   </surfacematerial>
   <open_pbr_surface name="open_pbr_surface_surfaceshader" type="surfaceshader">
+    <input name="emission_weight" type="float" value="1.0" />
     <input name="emission_color" type="color3" value="0.759, 0.452, 0.152" />
     <input name="emission_luminance" type="float" value="10000" />
   </open_pbr_surface>
diff --git a/examples/open_pbr_lithium.mtlx b/examples/open_pbr_lithium.mtlx
index 5887eb27..d4e24be9 100644
--- a/examples/open_pbr_lithium.mtlx
+++ b/examples/open_pbr_lithium.mtlx
@@ -6,7 +6,7 @@
   <open_pbr_surface name="open_pbr_surface_surfaceshader" type="surfaceshader">
     <input name="base_color" type="color3" value="0.902, 0.890, 0.819" />
     <input name="base_metalness" type="float" value="1.0" />
-    <input name="specular_color" type="color3" value="0.991, 0.998, 1.023" />
+    <input name="specular_color" type="color3" value="0.969, 0.975, 1.0" />
     <input name="specular_roughness" type="float" value="0.02" />
   </open_pbr_surface>
 </materialx>
\ No newline at end of file
diff --git a/examples/open_pbr_milk.mtlx b/examples/open_pbr_milk.mtlx
index 27b7932c..fc4e8635 100644
--- a/examples/open_pbr_milk.mtlx
+++ b/examples/open_pbr_milk.mtlx
@@ -8,6 +8,7 @@
     <input name="specular_ior" type="float" value="1.35" />
     <input name="subsurface_weight" type="float" value="1.0" />
     <input name="subsurface_color" type="color3" value="0.808, 0.811, 0.699" />
-    <input name="subsurface_radius_scale" type="color3" value="1.842, 1.044, 0.35" />
+    <input name="subsurface_radius" type="float" value="1.842" />
+    <input name="subsurface_radius_scale" type="color3" value="1.0, 0.566, 0.19" />
   </open_pbr_surface>
 </materialx>
\ No newline at end of file
diff --git a/examples/open_pbr_petroleum.mtlx b/examples/open_pbr_petroleum.mtlx
index 63b11d2a..37d6c6b8 100644
--- a/examples/open_pbr_petroleum.mtlx
+++ b/examples/open_pbr_petroleum.mtlx
@@ -7,6 +7,7 @@
     <input name="specular_roughness" type="float" value="0.0" />
     <input name="subsurface_weight" type="float" value="1.0" />
     <input name="subsurface_color" type="color3" value="0.029, 0.027, 0.024" />
-    <input name="subsurface_radius_scale" type="color3" value="3, 1, 0.25" />
+    <input name="subsurface_radius" type="float" value="3.0" />
+    <input name="subsurface_radius_scale" type="color3" value="1, 0.33, 0.083" />
   </open_pbr_surface>
 </materialx>
\ No newline at end of file
diff --git a/examples/open_pbr_potassium.mtlx b/examples/open_pbr_potassium.mtlx
index d78fb58d..c0d334af 100644
--- a/examples/open_pbr_potassium.mtlx
+++ b/examples/open_pbr_potassium.mtlx
@@ -6,7 +6,7 @@
   <open_pbr_surface name="open_pbr_surface_surfaceshader" type="surfaceshader">
     <input name="base_color" type="color3" value="0.971, 0.957, 0.914" />
     <input name="base_metalness" type="float" value="1.0" />
-    <input name="specular_color" type="color3" value="1.006, 1.010, 1.029" />
+    <input name="specular_color" type="color3" value="0.977 , 0.982, 1.0" />
     <input name="specular_roughness" type="float" value="0.02" />
   </open_pbr_surface>
 </materialx>
\ No newline at end of file
diff --git a/examples/open_pbr_rubidium.mtlx b/examples/open_pbr_rubidium.mtlx
index c3f57296..d086e553 100644
--- a/examples/open_pbr_rubidium.mtlx
+++ b/examples/open_pbr_rubidium.mtlx
@@ -6,7 +6,7 @@
   <open_pbr_surface name="open_pbr_surface_surfaceshader" type="surfaceshader">
     <input name="base_color" type="color3" value="0.892, 0.862, 0.764" />
     <input name="base_metalness" type="float" value="1.0" />
-    <input name="specular_color" type="color3" value="1.028, 1.041, 1.096" />
+    <input name="specular_color" type="color3" value="0.938 , 0.950, 1.0" />
     <input name="specular_roughness" type="float" value="0.02" />
   </open_pbr_surface>
 </materialx>
\ No newline at end of file
diff --git a/examples/open_pbr_sodium.mtlx b/examples/open_pbr_sodium.mtlx
index 2b6461c5..d4195fea 100644
--- a/examples/open_pbr_sodium.mtlx
+++ b/examples/open_pbr_sodium.mtlx
@@ -6,7 +6,7 @@
   <open_pbr_surface name="open_pbr_surface_surfaceshader" type="surfaceshader">
     <input name="base_color" type="color3" value="0.970, 0.962, 0.940" />
     <input name="base_metalness" type="float" value="1.0" />
-    <input name="specular_color" type="color3" value="1.000, 1.002, 1.010" />
+    <input name="specular_color" type="color3" value="0.990, 0.992, 1.0" />
     <input name="specular_roughness" type="float" value="0.02" />
   </open_pbr_surface>
 </materialx>
\ No newline at end of file