diff --git a/code/glTF2Asset.h b/code/glTF2Asset.h
index 35c05af9c..66379c56e 100644
--- a/code/glTF2Asset.h
+++ b/code/glTF2Asset.h
@@ -181,13 +181,17 @@ namespace glTF2
 	#define _AI_MATKEY_GLTF_MAPPINGID_BASE "$tex.mappingid"
 	#define _AI_MATKEY_GLTF_MAPPINGFILTER_MAG_BASE "$tex.mappingfiltermag"
 	#define _AI_MATKEY_GLTF_MAPPINGFILTER_MIN_BASE "$tex.mappingfiltermin"
+    #define _AI_MATKEY_GLTF_SCALE_BASE "$tex.scale"
+    #define _AI_MATKEY_GLTF_STRENGTH_BASE "$tex.strength"
 
 	#define AI_MATKEY_GLTF_TEXTURE_TEXCOORD _AI_MATKEY_GLTF_TEXTURE_TEXCOORD_BASE, type, N
 	#define AI_MATKEY_GLTF_MAPPINGNAME(type, N) _AI_MATKEY_GLTF_MAPPINGNAME_BASE, type, N
 	#define AI_MATKEY_GLTF_MAPPINGID(type, N) _AI_MATKEY_GLTF_MAPPINGID_BASE, type, N
 	#define AI_MATKEY_GLTF_MAPPINGFILTER_MAG(type, N) _AI_MATKEY_GLTF_MAPPINGFILTER_MAG_BASE, type, N
 	#define AI_MATKEY_GLTF_MAPPINGFILTER_MIN(type, N) _AI_MATKEY_GLTF_MAPPINGFILTER_MIN_BASE, type, N
-
+    #define AI_MATKEY_GLTF_TEXTURE_SCALE(type, N) _AI_MATKEY_GLTF_SCALE_BASE, type, N
+    #define AI_MATKEY_GLTF_TEXTURE_STRENGTH(type, N) _AI_MATKEY_GLTF_STRENGTH_BASE, type, N
+    
     #ifdef ASSIMP_API
         #include "./../include/assimp/Compiler/pushpack1.h"
     #endif
diff --git a/code/glTF2AssetWriter.inl b/code/glTF2AssetWriter.inl
index fa406fc71..3c465d2d2 100644
--- a/code/glTF2AssetWriter.inl
+++ b/code/glTF2AssetWriter.inl
@@ -584,7 +584,7 @@ namespace glTF2 {
         if (bodyBuffer->byteLength > 0) {
             rapidjson::Value glbBodyBuffer;
             glbBodyBuffer.SetObject();
-            glbBodyBuffer.AddMember("byteLength", bodyBuffer->byteLength, mAl);
+            glbBodyBuffer.AddMember("byteLength", static_cast<uint64_t>(bodyBuffer->byteLength), mAl);
             mDoc["buffers"].PushBack(glbBodyBuffer, mAl);
         }
 
diff --git a/code/glTF2Importer.cpp b/code/glTF2Importer.cpp
index 82e70d345..92328ec2d 100644
--- a/code/glTF2Importer.cpp
+++ b/code/glTF2Importer.cpp
@@ -99,14 +99,14 @@ const aiImporterDesc* glTF2Importer::GetInfo() const
     return &desc;
 }
 
-bool glTF2Importer::CanRead(const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const
+bool glTF2Importer::CanRead(const std::string& pFile, IOSystem* pIOHandler, bool /* checkSig */) const
 {
     const std::string &extension = GetExtension(pFile);
 
     if (extension != "gltf" && extension != "glb")
         return false;
 
-    if (checkSig && pIOHandler) {
+    if (pIOHandler) {
         glTF2::Asset asset(pIOHandler);
         try {
             asset.Load(pFile, extension == "glb");
@@ -211,6 +211,24 @@ inline void SetMaterialTextureProperty(std::vector<int>& embeddedTexIdxs, Asset&
     }
 }
 
+inline void SetMaterialTextureProperty(std::vector<int>& embeddedTexIdxs, Asset& r, glTF2::NormalTextureInfo& prop, aiMaterial* mat, aiTextureType texType, unsigned int texSlot = 0)
+{
+    SetMaterialTextureProperty( embeddedTexIdxs, r, (glTF2::TextureInfo) prop, mat, texType, texSlot );
+
+    if (prop.texture && prop.texture->source) {
+         mat->AddProperty(&prop.scale, 1, AI_MATKEY_GLTF_TEXTURE_SCALE(texType, texSlot));
+    }
+}
+
+inline void SetMaterialTextureProperty(std::vector<int>& embeddedTexIdxs, Asset& r, glTF2::OcclusionTextureInfo& prop, aiMaterial* mat, aiTextureType texType, unsigned int texSlot = 0)
+{
+    SetMaterialTextureProperty( embeddedTexIdxs, r, (glTF2::TextureInfo) prop, mat, texType, texSlot );
+
+    if (prop.texture && prop.texture->source) {
+        mat->AddProperty(&prop.strength, 1, AI_MATKEY_GLTF_TEXTURE_STRENGTH(texType, texSlot));
+    }
+}
+
 static aiMaterial* ImportMaterial(std::vector<int>& embeddedTexIdxs, Asset& r, Material& mat)
 {
     aiMaterial* aimat = new aiMaterial();
diff --git a/code/glTFImporter.cpp b/code/glTFImporter.cpp
index 526ccde04..8fd5a41ec 100644
--- a/code/glTFImporter.cpp
+++ b/code/glTFImporter.cpp
@@ -98,14 +98,14 @@ const aiImporterDesc* glTFImporter::GetInfo() const
     return &desc;
 }
 
-bool glTFImporter::CanRead(const std::string& pFile, IOSystem* pIOHandler, bool checkSig) const
+bool glTFImporter::CanRead(const std::string& pFile, IOSystem* pIOHandler, bool /* checkSig */) const
 {
     const std::string &extension = GetExtension(pFile);
 
     if (extension != "gltf" && extension != "glb")
         return false;
 
-    if (checkSig && pIOHandler) {
+    if (pIOHandler) {
         glTF::Asset asset(pIOHandler);
         try {
             asset.Load(pFile, extension == "glb");