0029516: Visualization - eliminate redundant property Graphic3d_MaterialAspect::Refle...
[occt.git] / src / Graphic3d / Graphic3d_MaterialAspect.cxx
index 8888c83..9e9624b 100644 (file)
@@ -25,14 +25,14 @@ namespace
   {
     const char*              StringName;
     Graphic3d_BSDF           BSDF;
-    Quantity_Color           Colors   [Graphic3d_TypeOfReflection_NB];
-    Standard_ShortReal       ColorCoef[Graphic3d_TypeOfReflection_NB];
+    Quantity_Color           Colors[Graphic3d_TypeOfReflection_NB];
     Standard_ShortReal       TransparencyCoef;
     Standard_ShortReal       RefractionIndex;
     Standard_ShortReal       Shininess;
+    Standard_ShortReal       AmbientCoef;  //!< coefficient for Graphic3d_MaterialAspect::SetColor()
+    Standard_ShortReal       DiffuseCoef;  //!< coefficient for Graphic3d_MaterialAspect::SetColor()
     Graphic3d_TypeOfMaterial MaterialType;
     Graphic3d_NameOfMaterial MaterialName;
-    Standard_Boolean         ReflActivity[Graphic3d_TypeOfReflection_NB];
 
     RawMaterial (Graphic3d_NameOfMaterial theName, const char* theStringName);
 
@@ -80,62 +80,59 @@ RawMaterial::RawMaterial (Graphic3d_NameOfMaterial theName, const char* theStrin
   TransparencyCoef(0.0f),
   RefractionIndex (1.0f),
   Shininess       (0.039f),
+  AmbientCoef     (0.25f),
+  DiffuseCoef     (1.0f),
   MaterialType    (Graphic3d_MATERIAL_ASPECT),
   MaterialName    (theName)
 {
-  ReflActivity[Graphic3d_TOR_AMBIENT]  = Standard_True;
-  ReflActivity[Graphic3d_TOR_DIFFUSE]  = Standard_True;
-  ReflActivity[Graphic3d_TOR_SPECULAR] = Standard_True;
-  ReflActivity[Graphic3d_TOR_EMISSION] = Standard_False;
-
-  ColorCoef[Graphic3d_TOR_AMBIENT]  = 0.3f;
-  ColorCoef[Graphic3d_TOR_DIFFUSE]  = 0.65f;
-  ColorCoef[Graphic3d_TOR_SPECULAR] = 0.0f;
-  ColorCoef[Graphic3d_TOR_EMISSION] = 0.0f;
-
-  Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.2f, 0.2f, 0.2f));
-  Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.2f, 0.2f, 0.2f));
-  Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (1.0f, 1.0f, 1.0f));
   switch (theName)
   {
     case Graphic3d_NOM_PLASTIC:
-      Shininess                         = 0.0078125f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 0.50f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 0.24f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 0.06f;
+      MaterialType = Graphic3d_MATERIAL_ASPECT;
 
-      BSDF.Kd = static_cast<Graphic3d_Vec3> (Colors[Graphic3d_TOR_DIFFUSE]);
+      Shininess = 0.0078125f;
+      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.50f));
+      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.24f));
+      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.06f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
+
+      BSDF.Kd = Graphic3d_Vec3 (0.2f);
       BSDF.Ks = Graphic3d_Vec4 (0.00784314f, 0.00784314f, 0.00784314f, 0.25f);
       BSDF.Normalize();
       break;
     case Graphic3d_NOM_SHINY_PLASTIC:
-      Shininess                         = 1.00f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 0.44f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 0.50f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 1.00f;
+      MaterialType = Graphic3d_MATERIAL_ASPECT;
 
-      BSDF.Kd = static_cast<Graphic3d_Vec3> (Colors[Graphic3d_TOR_DIFFUSE]);
+      Shininess = 1.00f;
+      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.44f));
+      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.50f));
+      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (1.0f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
+
+      BSDF.Kd = Graphic3d_Vec3 (0.2f);
       BSDF.Ks = Graphic3d_Vec4 (0.145f, 0.145f, 0.145f, 0.17f);
       BSDF.Normalize();
       break;
     case Graphic3d_NOM_SATIN:
-      Shininess                         = 0.09375f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 0.33f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 0.40f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 0.44f;
+      MaterialType = Graphic3d_MATERIAL_ASPECT;
+
+      Shininess = 0.09375f;
+      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.33f));
+      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.40f));
+      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.44f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
 
       BSDF.Kd = Graphic3d_Vec3 (0.2f);
       BSDF.Ks = Graphic3d_Vec4 (0.6f);
-
       break;
     case Graphic3d_NOM_NEON_GNC:
-      Shininess                         = 0.05f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 0.62f;
-      ColorCoef[Graphic3d_TOR_EMISSION] = 1.00f;
-      ReflActivity[Graphic3d_TOR_AMBIENT]  = Standard_False;
-      ReflActivity[Graphic3d_TOR_EMISSION] = Standard_True;
+      MaterialType = Graphic3d_MATERIAL_ASPECT;
+
+      Shininess = 0.05f;
+      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.0f));
+      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (1.0f));
+      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.62f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (1.0f));
 
       BSDF.Kd = Graphic3d_Vec3 (0.0f);
       BSDF.Ks = Graphic3d_Vec4 (0.5f, 0.5f, 0.5f, 0.f);
@@ -143,199 +140,160 @@ RawMaterial::RawMaterial (Graphic3d_NameOfMaterial theName, const char* theStrin
       BSDF.FresnelBase = Graphic3d_Fresnel::CreateDielectric (1.5f);
       break;
     case Graphic3d_NOM_METALIZED:
-      Shininess                         = 0.13f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 0.90f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 0.47f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 0.45f;
-      ReflActivity[Graphic3d_TOR_AMBIENT] = Standard_False;
-      {
-        const Graphic3d_Vec3 aColor = (Graphic3d_Vec3 )Colors[Graphic3d_TOR_DIFFUSE];
-        BSDF = Graphic3d_BSDF::CreateMetallic (Graphic3d_Vec3 (0.985f, 0.985f, 0.985f),
-          Graphic3d_Fresnel::CreateSchlick (aColor), 0.045f);
-      }
+      MaterialType = Graphic3d_MATERIAL_ASPECT;
+
+      Shininess = 0.13f;
+      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.0f));
+      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.47f));
+      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.45f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
+
+      BSDF = Graphic3d_BSDF::CreateMetallic (Graphic3d_Vec3 (0.985f, 0.985f, 0.985f),
+                                             Graphic3d_Fresnel::CreateSchlick (Graphic3d_Vec3 (0.2f)), 0.045f);
       break;
-    // Ascending Compatibility physical materials. The same definition is taken as in the next constructor.
     case Graphic3d_NOM_BRASS:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
 
-      Shininess                         = 0.65f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 1.00f;
-
       BSDF = Graphic3d_BSDF::CreateMetallic (Graphic3d_Vec3 (0.985f, 0.985f, 0.985f),
         Graphic3d_Fresnel::CreateSchlick (Graphic3d_Vec3 (0.58f, 0.42f, 0.20f)), 0.045f);
 
+      Shininess = 0.65f;
       Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.329f, 0.224f, 0.027f));
       Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.780f, 0.569f, 0.114f));
       Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.992f, 0.941f, 0.808f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
       break;
     case Graphic3d_NOM_BRONZE:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
 
-      Shininess                         = 0.65f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 1.00f;
-
       BSDF = Graphic3d_BSDF::CreateMetallic (Graphic3d_Vec3 (0.985f, 0.985f, 0.985f),
         Graphic3d_Fresnel::CreateSchlick (Graphic3d_Vec3 (0.65f, 0.35f, 0.15f)), 0.045f);
 
+      Shininess = 0.65f;
       Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.213f, 0.128f, 0.054f));
       Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.714f, 0.428f, 0.181f));
       Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.590f, 0.408f, 0.250f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
       break;
     case Graphic3d_NOM_COPPER:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
 
-      Shininess                         = 0.65f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 1.00f;
-
       BSDF = Graphic3d_BSDF::CreateMetallic (Graphic3d_Vec3 (0.985f, 0.985f, 0.985f),
         Graphic3d_Fresnel::CreateSchlick (Graphic3d_Vec3 (0.955008f, 0.637427f, 0.538163f)), 0.045f);
 
+      Shininess = 0.65f;
       Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.191f, 0.074f, 0.023f));
       Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.604f, 0.270f, 0.083f));
       Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.950f, 0.640f, 0.540f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
       break;
     case Graphic3d_NOM_GOLD:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
 
-      Shininess                         = 0.80f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 1.00f;
-
       BSDF = Graphic3d_BSDF::CreateMetallic (Graphic3d_Vec3 (0.985f, 0.985f, 0.985f),
         Graphic3d_Fresnel::CreateSchlick (Graphic3d_Vec3 (1.000000f, 0.765557f, 0.336057f)), 0.045f);
 
+      Shininess = 0.80f;
       Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.300f, 0.230f, 0.095f));
       Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.752f, 0.580f, 0.100f));
       Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (1.000f, 0.710f, 0.290f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
       break;
     case Graphic3d_NOM_PEWTER:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
 
-      Shininess                         = 0.50f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 1.00f;
-
       BSDF = Graphic3d_BSDF::CreateMetallic (Graphic3d_Vec3 (0.985f, 0.985f, 0.985f),
         Graphic3d_Fresnel::CreateConductor (1.8800f, 3.4900f), 0.045f);
 
+      Shininess = 0.50f;
       Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.106f, 0.059f, 0.114f));
       Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.427f, 0.471f, 0.541f));
       Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.333f, 0.333f, 0.522f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
       break;
     case Graphic3d_NOM_PLASTER:
-      Shininess                         = 0.01f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 0.26f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 0.75f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 0.05f;
+      MaterialType = Graphic3d_MATERIAL_ASPECT;
 
-      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.192f, 0.192f, 0.192f));
-      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.508f, 0.508f, 0.508f));
-      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.508f, 0.508f, 0.508f));
+      Shininess = 0.01f;
+      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.26f));
+      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.75f));
+      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.05f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
 
       BSDF.Kd = Graphic3d_Vec3 (0.482353f, 0.482353f, 0.482353f);
-
       break;
     case Graphic3d_NOM_SILVER:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
 
-      Shininess                         = 0.75f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 1.00f;
-
       BSDF = Graphic3d_BSDF::CreateMetallic (Graphic3d_Vec3 (0.985f, 0.985f, 0.985f),
         Graphic3d_Fresnel::CreateSchlick (Graphic3d_Vec3 (0.971519f, 0.959915f, 0.915324f)), 0.045f);
 
+      Shininess = 0.75f;
       Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.275f, 0.275f, 0.250f));
       Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.630f, 0.630f, 0.630f));
       Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.950f, 0.930f, 0.880f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
       break;
     case Graphic3d_NOM_STEEL:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
 
-      Shininess                         = 0.90f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 1.00f;
-
       BSDF = Graphic3d_BSDF::CreateMetallic (Graphic3d_Vec3 (0.985f, 0.985f, 0.985f),
         Graphic3d_Fresnel::CreateConductor (Graphic3d_Vec3 (2.90f, 2.80f, 2.53f), Graphic3d_Vec3 (3.08f, 2.90f, 2.74f)), 0.045f);
 
+      Shininess = 0.90f;
       Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.150f, 0.150f, 0.180f));
       Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.500f, 0.510f, 0.520f));
       Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.560f, 0.570f, 0.580f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
       break;
     case Graphic3d_NOM_STONE:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
 
-      Shininess                         = 0.17f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 0.19f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 0.75f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 0.08f;
+      // special case for SetColor()
+      AmbientCoef = 0.19f * 0.25f;
+      DiffuseCoef = 0.75f;
 
-      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (1.00f, 0.8f, 0.62f));
-      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (1.00f, 0.8f, 0.62f));
-      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.98f, 1.0f, 0.60f));
+      Shininess = 0.17f;
+      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (1.00f, 0.8f, 0.62f) * 0.19f);
+      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (1.00f, 0.8f, 0.62f) * 0.75f);
+      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.98f, 1.0f, 0.60f) * 0.08f);
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
 
       BSDF.Kd = Graphic3d_Vec3 (0.243137f, 0.243137f, 0.243137f);
       BSDF.Ks = Graphic3d_Vec4 (0.00392157f, 0.00392157f, 0.00392157f, 0.5f);
-
       break;
-    // Ascending Compatibility of physical materials. Takes the same definition as in the next constructor. New materials
     case Graphic3d_NOM_CHROME:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
 
-      Shininess                         = 0.90f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 1.00f;
-
       BSDF = Graphic3d_BSDF::CreateMetallic (Graphic3d_Vec3 (0.985f, 0.985f, 0.985f),
         Graphic3d_Fresnel::CreateSchlick (Graphic3d_Vec3 (0.549585f, 0.556114f, 0.554256f)), 0.045f);
 
+      Shininess = 0.90f;
       Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.200f, 0.200f, 0.225f));
       Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.550f, 0.550f, 0.550f));
       Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.975f, 0.975f, 0.975f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
       break;
     case Graphic3d_NOM_ALUMINIUM:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
 
-      Shininess                         = 0.75f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 1.00f;
-
       BSDF = Graphic3d_BSDF::CreateMetallic (Graphic3d_Vec3 (0.985f, 0.985f, 0.985f),
         Graphic3d_Fresnel::CreateSchlick (Graphic3d_Vec3 (0.913183f, 0.921494f, 0.924524f)), 0.045f);
 
+      Shininess = 0.75f;
       Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.300f, 0.300f, 0.300f));
       Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.600f, 0.600f, 0.600f));
       Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.910f, 0.920f, 0.920f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
       break;
     case Graphic3d_NOM_NEON_PHC:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
 
-      Shininess                         = 0.05f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 0.62f;
-      ColorCoef[Graphic3d_TOR_EMISSION] = 0.90f;
-      ReflActivity[Graphic3d_TOR_AMBIENT]  = Standard_False;
-      ReflActivity[Graphic3d_TOR_DIFFUSE]  = Standard_False;
-      ReflActivity[Graphic3d_TOR_EMISSION] = Standard_True;
-
-      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (1.0f, 1.0f, 1.0f));
-      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (1.0f, 1.0f, 1.0f));
-      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (1.0f, 1.0f, 1.0f));
-      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f, 1.0f, 0.46f));
+      Shininess = 0.05f;
+      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.0f));
+      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.0f));
+      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.62f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f, 0.90f, 0.414f));
 
       BSDF.Kd = Graphic3d_Vec3 (0.0f);
       BSDF.Ks = Graphic3d_Vec4 (0.5f, 0.5f, 0.5f, 0.f);
@@ -345,14 +303,11 @@ RawMaterial::RawMaterial (Graphic3d_NameOfMaterial theName, const char* theStrin
     case Graphic3d_NOM_OBSIDIAN:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
 
-      Shininess                         = 0.3f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.0f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.0f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 1.0f;
-
+      Shininess = 0.3f;
       Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.054f, 0.050f, 0.066f));
       Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.183f, 0.170f, 0.225f));
       Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.333f, 0.329f, 0.346f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
 
       BSDF.Kd = Graphic3d_Vec3 (0.023f, 0.f, 0.023f);
       BSDF.Ks = Graphic3d_Vec4 (0.0156863f, 0.0156863f, 0.0156863f, 0.1f);
@@ -360,14 +315,11 @@ RawMaterial::RawMaterial (Graphic3d_NameOfMaterial theName, const char* theStrin
     case Graphic3d_NOM_JADE:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
 
-      Shininess                         = 0.10f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 1.00f;
-
+      Shininess = 0.10f;
       Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.135f, 0.223f, 0.158f));
       Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.540f, 0.890f, 0.630f));
       Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.316f, 0.316f, 0.316f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
 
       BSDF.FresnelBase = Graphic3d_Fresnel::CreateDielectric (1.5f);
       BSDF.Kd = Graphic3d_Vec3 (0.208658f, 0.415686f, 0.218401f);
@@ -376,14 +328,11 @@ RawMaterial::RawMaterial (Graphic3d_NameOfMaterial theName, const char* theStrin
     case Graphic3d_NOM_CHARCOAL:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
 
-      Shininess                         = 0.01f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 1.00f;
-
-      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.050f, 0.050f, 0.050f));
-      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.150f, 0.150f, 0.150f));
-      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.000f, 0.000f, 0.000f));
+      Shininess = 0.01f;
+      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.050f));
+      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.150f));
+      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.0f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
 
       BSDF.Kd = Graphic3d_Vec3 (0.02f, 0.02f, 0.02f);
       BSDF.Ks = Graphic3d_Vec4 (0.1f, 0.1f, 0.1f, 0.3f);
@@ -391,10 +340,6 @@ RawMaterial::RawMaterial (Graphic3d_NameOfMaterial theName, const char* theStrin
     case Graphic3d_NOM_WATER:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
 
-      Shininess                         = 0.90f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 1.00f;
       RefractionIndex  = 1.33f;
       BSDF             = Graphic3d_BSDF::CreateGlass (Graphic3d_Vec3 (1.f),
                                                       Graphic3d_Vec3 (0.7f, 0.75f, 0.85f),
@@ -402,17 +347,15 @@ RawMaterial::RawMaterial (Graphic3d_NameOfMaterial theName, const char* theStrin
                                                       RefractionIndex);
       TransparencyCoef = 0.80f;
 
+      Shininess = 0.90f;
       Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.450f, 0.450f, 0.475f));
       Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.050f, 0.050f, 0.075f));
       Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.380f, 0.380f, 0.380f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
       break;
     case Graphic3d_NOM_GLASS:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
 
-      Shininess                         = 0.50f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 1.00f;
       RefractionIndex  = 1.62f;
       BSDF             = Graphic3d_BSDF::CreateGlass (Graphic3d_Vec3 (1.f),
                                                       Graphic3d_Vec3 (0.75f, 0.95f, 0.9f),
@@ -420,17 +363,15 @@ RawMaterial::RawMaterial (Graphic3d_NameOfMaterial theName, const char* theStrin
                                                       RefractionIndex);
       TransparencyCoef = 0.80f;
 
+      Shininess = 0.50f;
       Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.550f, 0.575f, 0.575f));
       Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.050f, 0.075f, 0.075f));
       Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.920f, 0.920f, 0.920f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
       break;
     case Graphic3d_NOM_DIAMOND:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
 
-      Shininess                         = 0.90f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 1.00f;
       RefractionIndex  = 2.42f;
       BSDF             = Graphic3d_BSDF::CreateGlass (Graphic3d_Vec3 (1.f),
                                                       Graphic3d_Vec3 (0.95f, 0.95f, 0.95f),
@@ -438,18 +379,16 @@ RawMaterial::RawMaterial (Graphic3d_NameOfMaterial theName, const char* theStrin
                                                       RefractionIndex);
       TransparencyCoef = 0.80f;
 
-      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.550f, 0.550f, 0.550f));
-      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.100f, 0.100f, 0.100f));
-      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.970f, 0.970f, 0.970f));
+      Shininess = 0.90f;
+      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.550f));
+      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.100f));
+      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.970f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
       break;
 
     case Graphic3d_NOM_TRANSPARENT:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
 
-      Shininess                         = 0.90f;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 1.00f;
       RefractionIndex = 1.0f;
 
       BSDF.Kd = Graphic3d_Vec3 (0.1f);
@@ -457,22 +396,26 @@ RawMaterial::RawMaterial (Graphic3d_NameOfMaterial theName, const char* theStrin
       BSDF.FresnelBase = Graphic3d_Fresnel::CreateConstant (0.0f);
       TransparencyCoef = 0.80f;
 
-      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.550f, 0.550f, 0.550f));
-      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.100f, 0.100f, 0.100f));
-      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.970f, 0.970f, 0.970f));
+      Shininess = 0.90f;
+      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.550f));
+      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.100f));
+      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.970f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
       break;
     case Graphic3d_NOM_UserDefined:
       MaterialType = Graphic3d_MATERIAL_PHYSIC;
-      ColorCoef[Graphic3d_TOR_AMBIENT]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_DIFFUSE]  = 1.00f;
-      ColorCoef[Graphic3d_TOR_SPECULAR] = 1.00f;
-      ColorCoef[Graphic3d_TOR_EMISSION] = 1.00f;
-      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.1f, 0.1f, 0.1f));
-      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.8f, 0.8f, 0.8f));
-      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.2f, 0.2f, 0.2f));
-      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f, 0.0f, 0.0f));
+      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.1f));
+      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.8f));
+      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.2f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
       break;
     case Graphic3d_NOM_DEFAULT:
+      MaterialType = Graphic3d_MATERIAL_ASPECT;
+
+      Colors[Graphic3d_TOR_AMBIENT]  = Quantity_Color (Graphic3d_Vec3 (0.30f));
+      Colors[Graphic3d_TOR_DIFFUSE]  = Quantity_Color (Graphic3d_Vec3 (0.65f));
+      Colors[Graphic3d_TOR_SPECULAR] = Quantity_Color (Graphic3d_Vec3 (0.0f));
+      Colors[Graphic3d_TOR_EMISSION] = Quantity_Color (Graphic3d_Vec3 (0.0f));
       break;
   }
 }
@@ -510,20 +453,12 @@ void Graphic3d_MaterialAspect::init (const Graphic3d_NameOfMaterial theName)
   myColors[Graphic3d_TOR_DIFFUSE]     = aMat.Colors[Graphic3d_TOR_DIFFUSE];
   myColors[Graphic3d_TOR_SPECULAR]    = aMat.Colors[Graphic3d_TOR_SPECULAR];
   myColors[Graphic3d_TOR_EMISSION]    = aMat.Colors[Graphic3d_TOR_EMISSION];
-  myColorCoef[Graphic3d_TOR_AMBIENT]  = aMat.ColorCoef[Graphic3d_TOR_AMBIENT];
-  myColorCoef[Graphic3d_TOR_DIFFUSE]  = aMat.ColorCoef[Graphic3d_TOR_DIFFUSE];
-  myColorCoef[Graphic3d_TOR_SPECULAR] = aMat.ColorCoef[Graphic3d_TOR_SPECULAR];
-  myColorCoef[Graphic3d_TOR_EMISSION] = aMat.ColorCoef[Graphic3d_TOR_EMISSION];
   myTransparencyCoef = aMat.TransparencyCoef;
   myRefractionIndex  = aMat.RefractionIndex;
   myShininess        = aMat.Shininess;
   myMaterialType     = aMat.MaterialType;
   myMaterialName     = theName;
   myRequestedMaterialName = theName;
-  myReflActivity[Graphic3d_TOR_AMBIENT]  = aMat.ReflActivity[Graphic3d_TOR_AMBIENT];
-  myReflActivity[Graphic3d_TOR_DIFFUSE]  = aMat.ReflActivity[Graphic3d_TOR_DIFFUSE];
-  myReflActivity[Graphic3d_TOR_SPECULAR] = aMat.ReflActivity[Graphic3d_TOR_SPECULAR];
-  myReflActivity[Graphic3d_TOR_EMISSION] = aMat.ReflActivity[Graphic3d_TOR_EMISSION];
 }
 
 // =======================================================================
@@ -554,41 +489,27 @@ void Graphic3d_MaterialAspect::SetMaterialType (const Graphic3d_TypeOfMaterial t
 }
 
 // =======================================================================
-// function : SetAmbient
+// function : SetColor
 // purpose  :
 // =======================================================================
-void Graphic3d_MaterialAspect::SetAmbient (const Standard_ShortReal theValue)
+void Graphic3d_MaterialAspect::SetColor (const Quantity_Color& theColor)
 {
-  if (theValue < 0.0f
-   || theValue > 1.0f)
+  if (myMaterialType == Graphic3d_MATERIAL_ASPECT)
   {
-    throw Graphic3d_MaterialDefinitionError("Bad value for SetAmbient < 0. or > 1.0");
+    return;
   }
 
-  myColorCoef[Graphic3d_TOR_AMBIENT] = theValue;
-  if (myReflActivity[Graphic3d_TOR_AMBIENT]
-   && myMaterialType == Graphic3d_MATERIAL_PHYSIC)
-  {
-    setUserMaterial();
-  }
-}
-
-// =======================================================================
-// function : SetColor
-// purpose  :
-// =======================================================================
-void Graphic3d_MaterialAspect::SetColor (const Quantity_Color& theColor)
-{
-  const Standard_ShortReal anAmbientCoeff = 0.25f;
-  myColors[Graphic3d_TOR_AMBIENT].SetValues (theColor.Red()   * anAmbientCoeff,
-                                             theColor.Green() * anAmbientCoeff,
-                                             theColor.Blue()  * anAmbientCoeff, Quantity_TOC_RGB);
-  myColors[Graphic3d_TOR_DIFFUSE] =  theColor;
-  if (myReflActivity[Graphic3d_TOR_AMBIENT]
-   && myMaterialType == Graphic3d_MATERIAL_PHYSIC)
+  const RawMaterial& aSrcMat = THE_MATERIALS[myRequestedMaterialName];
+  const Quantity_Color anAmbient((Graphic3d_Vec3 )theColor * aSrcMat.AmbientCoef);
+  const Quantity_Color aDiffuse ((Graphic3d_Vec3 )theColor * aSrcMat.DiffuseCoef);
+  if (myMaterialName != Graphic3d_NOM_UserDefined
+   && (!myColors[Graphic3d_TOR_AMBIENT].IsEqual (anAmbient)
+    || !myColors[Graphic3d_TOR_DIFFUSE].IsEqual (aDiffuse)))
   {
     setUserMaterial();
   }
+  myColors[Graphic3d_TOR_AMBIENT] = anAmbient;
+  myColors[Graphic3d_TOR_DIFFUSE] = aDiffuse;
 }
 
 // =======================================================================
@@ -597,12 +518,13 @@ void Graphic3d_MaterialAspect::SetColor (const Quantity_Color& theColor)
 // =======================================================================
 void Graphic3d_MaterialAspect::SetAmbientColor (const Quantity_Color& theColor)
 {
-  myColors[Graphic3d_TOR_AMBIENT] = theColor;
-  if (myReflActivity[Graphic3d_TOR_AMBIENT]
-   && myMaterialType == Graphic3d_MATERIAL_PHYSIC)
+  if (myMaterialType == Graphic3d_MATERIAL_PHYSIC
+  &&  myMaterialName != Graphic3d_NOM_UserDefined
+  && !myColors[Graphic3d_TOR_AMBIENT].IsEqual (theColor))
   {
     setUserMaterial();
   }
+  myColors[Graphic3d_TOR_AMBIENT] = theColor;
 }
 
 // =======================================================================
@@ -611,12 +533,13 @@ void Graphic3d_MaterialAspect::SetAmbientColor (const Quantity_Color& theColor)
 // =======================================================================
 void Graphic3d_MaterialAspect::SetDiffuseColor (const Quantity_Color& theColor)
 {
-  myColors[Graphic3d_TOR_DIFFUSE] = theColor;
-  if (myReflActivity[Graphic3d_TOR_DIFFUSE]
-   && myMaterialType == Graphic3d_MATERIAL_PHYSIC)
+  if (myMaterialType == Graphic3d_MATERIAL_PHYSIC
+  &&  myMaterialName != Graphic3d_NOM_UserDefined
+  && !myColors[Graphic3d_TOR_DIFFUSE].IsEqual (theColor))
   {
     setUserMaterial();
   }
+  myColors[Graphic3d_TOR_DIFFUSE] = theColor;
 }
 
 // =======================================================================
@@ -625,12 +548,13 @@ void Graphic3d_MaterialAspect::SetDiffuseColor (const Quantity_Color& theColor)
 // =======================================================================
 void Graphic3d_MaterialAspect::SetSpecularColor (const Quantity_Color& theColor)
 {
-  myColors[Graphic3d_TOR_SPECULAR] = theColor;
-  if (myReflActivity[Graphic3d_TOR_SPECULAR]
-   && myMaterialType == Graphic3d_MATERIAL_PHYSIC)
+  if (myMaterialType == Graphic3d_MATERIAL_PHYSIC
+  &&  myMaterialName != Graphic3d_NOM_UserDefined
+  && !myColors[Graphic3d_TOR_SPECULAR].IsEqual (theColor))
   {
     setUserMaterial();
   }
+  myColors[Graphic3d_TOR_SPECULAR] = theColor;
 }
 
 // =======================================================================
@@ -639,86 +563,13 @@ void Graphic3d_MaterialAspect::SetSpecularColor (const Quantity_Color& theColor)
 // =======================================================================
 void Graphic3d_MaterialAspect::SetEmissiveColor (const Quantity_Color& theColor)
 {
-  myColors[Graphic3d_TOR_EMISSION] = theColor;
-  if (myReflActivity[Graphic3d_TOR_EMISSION]
-   && myMaterialType == Graphic3d_MATERIAL_PHYSIC)
-  {
-    setUserMaterial();
-  }
-}
-
-// =======================================================================
-// function : SetDiffuse
-// purpose  :
-// =======================================================================
-void Graphic3d_MaterialAspect::SetDiffuse (const Standard_ShortReal theValue)
-{
-  if (theValue < 0.0f
-   || theValue > 1.0f)
-  {
-    throw Graphic3d_MaterialDefinitionError("Bad value for SetDiffuse < 0. or > 1.0");
-  }
-
-  myColorCoef[Graphic3d_TOR_DIFFUSE] = theValue;
-  if (myReflActivity[Graphic3d_TOR_DIFFUSE]
-   && myMaterialType == Graphic3d_MATERIAL_PHYSIC)
-  {
-    setUserMaterial();
-  }
-}
-
-// =======================================================================
-// function : SetEmissive
-// purpose  :
-// =======================================================================
-void Graphic3d_MaterialAspect::SetEmissive (const Standard_ShortReal theValue)
-{
-  if (theValue < 0.0f
-   || theValue > 1.0f)
-  {
-    throw Graphic3d_MaterialDefinitionError("Bad value for SetEmissive < 0. or > 1.0");
-  }
-
-  myColorCoef[Graphic3d_TOR_EMISSION] = theValue;
-  if (myReflActivity[Graphic3d_TOR_DIFFUSE]
-   && myMaterialType == Graphic3d_MATERIAL_PHYSIC)
-  {
-    setUserMaterial();
-  }
-}
-
-// =======================================================================
-// function : SetReflectionMode
-// purpose  :
-// =======================================================================
-void Graphic3d_MaterialAspect::SetReflectionMode (const Graphic3d_TypeOfReflection theType,
-                                                  const Standard_Boolean theValue)
-{
-  myReflActivity[theType] = theValue;
-  if (myMaterialType == Graphic3d_MATERIAL_PHYSIC)
-  {
-    setUserMaterial();
-  }
-}
-
-// =======================================================================
-// function : SetSpecular
-// purpose  :
-// =======================================================================
-void Graphic3d_MaterialAspect::SetSpecular (const Standard_ShortReal theValue)
-{
-  if (theValue < 0.0f
-   || theValue > 1.0f)
-  {
-    throw Graphic3d_MaterialDefinitionError("Bad value for SetSpecular < 0. or > 1.0");
-  }
-
-  myColorCoef[Graphic3d_TOR_SPECULAR] = theValue;
-  if (myReflActivity[Graphic3d_TOR_SPECULAR]
-   && myMaterialType == Graphic3d_MATERIAL_PHYSIC)
+  if (myMaterialType == Graphic3d_MATERIAL_PHYSIC
+  &&  myMaterialName != Graphic3d_NOM_UserDefined
+  && !myColors[Graphic3d_TOR_EMISSION].IsEqual (theColor))
   {
     setUserMaterial();
   }
+  myColors[Graphic3d_TOR_EMISSION] = theColor;
 }
 
 // =======================================================================
@@ -762,8 +613,11 @@ void Graphic3d_MaterialAspect::SetShininess (const Standard_ShortReal theValue)
     throw Graphic3d_MaterialDefinitionError("Bad value for Shininess < 0. or > 1.0");
   }
 
-  myShininess = theValue;
-  setUserMaterial();
+  if (myShininess != theValue)
+  {
+    myShininess = theValue;
+    setUserMaterial();
+  }
 }
 
 // =======================================================================
@@ -784,47 +638,55 @@ Standard_CString Graphic3d_MaterialAspect::MaterialName (const Standard_Integer
 // function : MaterialFromName
 // purpose  :
 // =======================================================================
-Graphic3d_NameOfMaterial Graphic3d_MaterialAspect::MaterialFromName (const Standard_CString theName)
+Standard_Boolean Graphic3d_MaterialAspect::MaterialFromName (const Standard_CString theName,
+                                                             Graphic3d_NameOfMaterial& theMat)
 {
   TCollection_AsciiString aName (theName);
   aName.LowerCase();
   aName.Capitalize();
   const Standard_Integer aNbMaterials = Graphic3d_MaterialAspect::NumberOfMaterials();
-  for (Standard_Integer aMatIter = 0; aMatIter < aNbMaterials; ++aMatIter)
+  for (Standard_Integer aMatIter = 0; aMatIter <= aNbMaterials; ++aMatIter)
   {
     const RawMaterial& aMat = THE_MATERIALS[aMatIter];
     if (aName == aMat.StringName)
     {
-      return Graphic3d_NameOfMaterial(aMatIter);
+      theMat = Graphic3d_NameOfMaterial(aMatIter);
+      return Standard_True;
     }
   }
 
   // parse aliases
   if (aName == "Plastic")            // Plastified
   {
-    return Graphic3d_NOM_PLASTIC;
+    theMat = Graphic3d_NOM_PLASTIC;
+    return Standard_True;
   }
   else if (aName == "Shiny_plastic") // Shiny_plastified
   {
-    return Graphic3d_NOM_SHINY_PLASTIC;
+    theMat = Graphic3d_NOM_SHINY_PLASTIC;
+    return Standard_True;
   }
   else if (aName == "Plaster")       // Plastered
   {
-    return Graphic3d_NOM_PLASTER;
+    theMat = Graphic3d_NOM_PLASTER;
+    return Standard_True;
   }
   else if (aName == "Satin")         // Satined
   {
-    return Graphic3d_NOM_SATIN;
+    theMat = Graphic3d_NOM_SATIN;
+    return Standard_True;
   }
   else if (aName == "Neon_gnc")      // Ionized
   {
-    return Graphic3d_NOM_NEON_GNC;
+    theMat = Graphic3d_NOM_NEON_GNC;
+    return Standard_True;
   }
   else if (aName == "Neon_phc") // Neon
   {
-    return Graphic3d_NOM_NEON_PHC;
+    theMat = Graphic3d_NOM_NEON_PHC;
+    return Standard_True;
   }
-  return Graphic3d_NOM_DEFAULT;
+  return Standard_False;
 }
 
 // =======================================================================