source/blender/gpu/shaders/material/gpu_shader_material_principled.glsl

@@ -19,33 +19,33 @@ float principled_sheen(float NV, float rough)
 }
 
 void node_bsdf_principled(vec4 base_color,
-                          float subsurface,
+                          float metallic,
+                          float roughness,
+                          float ior,
+                          float transmission,
+                          float alpha,
+                          vec3 N,
+                          float weight,
+                          float subsurface, /* Start of SSS */
                           float subsurface_scale,
                           vec3 subsurface_radius,
                           float subsurface_ior,
                           float subsurface_anisotropy,
-                          float metallic,
-                          float specular,
+                          float specular, /* Start of Specular */
                           float specular_tint,
-                          float roughness,
                           float anisotropic,
                           float anisotropic_rotation,
-                          float sheen,
+                          vec3 T,
+                          float sheen, /* Start of Sheen */
                           float sheen_roughness,
                           vec4 sheen_tint,
-                          float coat,
+                          float coat, /* Start of Coat */
                           float coat_roughness,
                           float coat_ior,
                           vec4 coat_tint,
-                          float ior,
-                          float transmission,
-                          vec4 emission,
-                          float emission_strength,
-                          float alpha,
-                          vec3 N,
                           vec3 CN,
-                          vec3 T,
-                          float weight,
+                          vec4 emission, /* Start of Emission */
+                          float emission_strength,
                           const float do_diffuse,
                           const float do_coat,
                           const float do_refraction,