add missing changes.

code/LWOMaterial.cpp

@@ -320,13 +320,10 @@ void LWOImporter::ConvertMaterial(const LWO::Surface& surf,aiMaterial* pcMat)
 
     // opacity ... either additive or default-blended, please
     if (0.0 != surf.mAdditiveTransparency)  {
-
         const int add = aiBlendMode_Additive;
         pcMat->AddProperty(&surf.mAdditiveTransparency,1,AI_MATKEY_OPACITY);
         pcMat->AddProperty(&add,1,AI_MATKEY_BLEND_FUNC);
-    }
-
-    else if (10e10f != surf.mTransparency)  {
+    } else if (10e10f != surf.mTransparency)  {
         const int def = aiBlendMode_Default;
         const float f = 1.0f-surf.mTransparency;
         pcMat->AddProperty(&f,1,AI_MATKEY_OPACITY);

include/assimp/material.h

@@ -912,6 +912,13 @@ extern "C" {
 #define AI_MATKEY_COLOR_TRANSPARENT "$clr.transparent",0,0
 #define AI_MATKEY_COLOR_REFLECTIVE "$clr.reflective",0,0
 #define AI_MATKEY_GLOBAL_BACKGROUND_IMAGE "?bg.global",0,0
+#define AI_MATKEY_GLOBAL_SHADERLANG "?sh.lang",0,0
+#define AI_MATKEY_SHADER_VERTEX "?sh.vs",0,0
+#define AI_MATKEY_SHADER_FRAGMENT "?sh.fs",0,0
+#define AI_MATKEY_SHADER_GEO "?sh.gs",0,0
+#define AI_MATKEY_SHADER_TESSELATION "?sh.ts",0,0
+#define AI_MATKEY_SHADER_PRIMITIVE "?sh.ps",0,0
+#define AI_MATKEY_SHADER_COMPUTE "?sh.cs",0,0
 
 // ---------------------------------------------------------------------------
 // Pure key names for all texture-related properties
@@ -1455,8 +1462,6 @@ inline aiReturn aiGetMaterialInteger(const C_STRUCT aiMaterial* pMat,
 
 #endif //!__cplusplus
 
-
-
 // ---------------------------------------------------------------------------
 /** @brief Retrieve a color value from the material property table
 *