diff --git a/kraken/resources/material/KRMaterial.cpp b/kraken/resources/material/KRMaterial.cpp
index 3aa898c..31ef8f9 100755
--- a/kraken/resources/material/KRMaterial.cpp
+++ b/kraken/resources/material/KRMaterial.cpp
@@ -42,6 +42,60 @@ using namespace mimir;
 using namespace hydra;
 using namespace simdjson;
 
+namespace simdjson {
+
+template <typename builder_type>
+void tag_invoke(serialize_tag, builder_type& builder, const hydra::Vector2& vec)
+{
+  builder.start_array();
+  builder.append(vec.x);
+  builder.append_comma();
+  builder.append(vec.y);
+  builder.end_array();
+}
+
+template <typename builder_type>
+void tag_invoke(serialize_tag, builder_type& builder, const hydra::Vector3& vec)
+{
+  builder.start_array();
+  builder.append(vec.x);
+  builder.append_comma();
+  builder.append(vec.y);
+  builder.append_comma();
+  builder.append(vec.z);
+  builder.end_array();
+}
+
+template <typename builder_type>
+void tag_invoke(serialize_tag, builder_type& builder, const hydra::Vector4& vec)
+{
+  builder.start_array();
+  builder.append(vec.x);
+  builder.append_comma();
+  builder.append(vec.y);
+  builder.append_comma();
+  builder.append(vec.z);
+  builder.append_comma();
+  builder.append(vec.w);
+  builder.end_array();
+}
+
+template <typename builder_type>
+void tag_invoke(serialize_tag, builder_type& builder, const KRMaterial::TransformedTexture& texture)
+{
+  builder.start_object();
+  builder.append_key_value<"texture">(texture.texture.getName());
+  builder.append_comma();
+  builder.append_key_value<"offset">(texture.offset);
+  builder.append_comma();
+  builder.append_key_value<"scale">(texture.scale);
+  builder.append_comma();
+  builder.append_key_value<"rotation">(texture.rotation);
+  builder.end_object();
+}
+
+} // namespace simdjson
+
 KRMaterial::KRMaterial(KRContext& context, const char* name)
   : KRResource(context, name)
 {
@@ -53,6 +107,14 @@ KRMaterial::KRMaterial(KRContext& context, std::string name, mimir::Block* data)
   simdjson::dom::parser parser;
   simdjson::dom::element jsonRoot;
   data->lock();
+
+  /*
+  char* str = (char*)data->getStart();
+  OutputDebugStringA("\n\n----====----\n");
+  OutputDebugStringA(str);
+  OutputDebugStringA("\n----====----\n\n");
+  */
+
   auto error = parser.parse((const char*)data->getStart(), data->getSize()).get(jsonRoot);
   data->unlock();
   if (error) {
@@ -80,7 +142,166 @@ bool KRMaterial::save(Block& data)
   simdjson::builder::string_builder sb;
   sb.start_object();
   sb.append_key_value<"name">(getName());
+  sb.append_comma();
+  switch (m_alphaMode) {
+  case KRMATERIAL_ALPHA_MODE_OPAQUE:
+    sb.append_key_value<"alphaMode">("opaque");
+    break;
+  case KRMATERIAL_ALPHA_MODE_BLEND:
+    sb.append_key_value<"alphaMode">("blend");
+    break;
+  case KRMATERIAL_ALPHA_MODE_TEST:
+    sb.append_key_value<"alphaMode">("test");
+    break;
+  }
+  sb.append_comma();
+  sb.append_key_value<"alphaCutoff">(m_alphaCutoff);
+  sb.append_comma();
+  sb.append_key_value<"ior">(m_ior);
+  sb.append_comma();
+  sb.append_key_value<"dispersion">(m_dispersion);
+  sb.append_comma();
+  switch (m_shadingModel) {
+  case KRMATERIAL_SHADING_MODEL_UNLIT:
+    sb.append_key_value<"shadingModel">("unlit");
+    break;
+  case KRMATERIAL_SHADING_MODEL_PBR:
+    sb.append_key_value<"shadingModel">("pbr");
+    break;
+  }
+
+  sb.append_comma();
+  sb.escape_and_append_with_quotes("baseColor");
+  sb.append_colon();
+
+  sb.start_object();
+  sb.append_key_value<"map">(m_baseColorTexture);
+  sb.append_comma();
+  sb.append_key_value<"factor">(m_baseColorFactor);
   sb.end_object();
+
+  sb.append_comma();
+
+  sb.escape_and_append_with_quotes("normal");
+  sb.append_colon();
+
+  sb.start_object();
+  sb.append_key_value<"map">(m_normalTexture);
+  sb.append_comma();
+  sb.append_key_value<"scale">(m_normalScale);
+  sb.end_object();
+
+  sb.append_comma();
+
+  sb.escape_and_append_with_quotes("emissive");
+  sb.append_colon();
+
+  sb.start_object();
+  sb.append_key_value<"map">(m_emissiveTexture);
+  sb.append_comma();
+  sb.append_key_value<"factor">(m_emissiveFactor);
+  sb.end_object();
+
+
+  sb.append_comma();
+
+
+  sb.escape_and_append_with_quotes("occlusion");
+  sb.append_colon();
+
+  sb.start_object();
+  sb.append_key_value<"map">(m_occlusionTexture);
+  sb.append_comma();
+  sb.append_key_value<"strength">(m_occlusionStrength);
+  sb.end_object();
+
+  sb.append_comma();
+
+  sb.escape_and_append_with_quotes("metalicRoughness");
+  sb.append_colon();
+
+  sb.start_object();
+  sb.append_key_value<"map">(m_metalicRoughness);
+  sb.append_comma();
+  sb.append_key_value<"metalicFactor">(m_metalicFactor);
+  sb.append_comma();
+  sb.append_key_value<"roughnessFactor">(m_roughnessFactor);
+  sb.end_object();
+
+  sb.append_comma();
+
+  sb.escape_and_append_with_quotes("anisotropy");
+  sb.append_colon();
+
+  sb.start_object();
+  sb.append_key_value<"map">(m_anisotropyTexture);
+  sb.append_comma();
+  sb.append_key_value<"strength">(m_anisotropyStrength);
+  sb.append_comma();
+  sb.append_key_value<"rotation">(m_anisotropyRotation);
+  sb.end_object();
+
+  sb.append_comma();
+
+  sb.escape_and_append_with_quotes("clearcoat");
+  sb.append_colon();
+
+  sb.start_object();
+  sb.append_key_value<"map">(m_clearcoatTexture);
+  sb.append_comma();
+  sb.append_key_value<"factor">(m_clearcoatFactor);
+  sb.append_comma();
+  sb.append_key_value<"roughnessMap">(m_clearcoatTexture);
+  sb.append_comma();
+  sb.append_key_value<"roughnessFactor">(m_anisotropyRotation);
+  sb.end_object();
+
+  sb.append_comma();
+
+  sb.escape_and_append_with_quotes("specular");
+  sb.append_colon();
+
+  sb.start_object();
+  sb.append_key_value<"map">(m_specularTexture);
+  sb.append_comma();
+  sb.append_key_value<"factor">(m_specularFactor);
+  sb.append_comma();
+  sb.append_key_value<"colorMap">(m_specularColorTexture);
+  sb.append_comma();
+  sb.append_key_value<"colorFactor">(m_specularColorFactor);
+  sb.end_object();
+
+  sb.append_comma();
+
+  sb.escape_and_append_with_quotes("thickness");
+  sb.append_colon();
+
+  sb.start_object();
+  sb.append_key_value<"map">(m_thicknessTexture);
+  sb.append_comma();
+  sb.append_key_value<"factor">(m_thicknessFactor);
+  sb.append_comma();
+  sb.append_key_value<"attenuiationDistance">(m_attenuationDistance);
+  sb.append_comma();
+  sb.append_key_value<"attenuationColor">(m_attenuationColor);
+  sb.end_object();
+
+
+  sb.append_comma();
+
+  sb.escape_and_append_with_quotes("transmission");
+  sb.append_colon();
+
+  sb.start_object();
+  sb.append_key_value<"map">(transmissionTexture);
+  sb.append_comma();
+  sb.append_key_value<"factor">(transmissionFactor);
+  sb.end_object();
+
+
+  sb.end_object();
+
+
   const char* str = nullptr;
   auto error = sb.c_str().get(str);
   if (error) {
@@ -88,6 +309,7 @@ bool KRMaterial::save(Block& data)
     // TODO - Report error
   }
   data.append(str);
+
   return true;
   /*
 
diff --git a/kraken/resources/material/KRMaterial.h b/kraken/resources/material/KRMaterial.h
index bc6136b..a4bfd83 100755
--- a/kraken/resources/material/KRMaterial.h
+++ b/kraken/resources/material/KRMaterial.h
@@ -64,6 +64,12 @@ public:
     KRMATERIAL_ALPHA_MODE_BLEND // Blended alpha with backface culling
   } alpha_mode_type;
 
+  typedef enum
+  {
+    KRMATERIAL_SHADING_MODEL_UNLIT,
+    KRMATERIAL_SHADING_MODEL_PBR
+  } shading_model_type;
+
   struct TransformedTexture
   {
     KRTextureBinding texture;
@@ -130,7 +136,7 @@ public:
   float m_alphaCutoff{ 0.5f };
   bool m_doubleSided{ false };
   float m_ior{ 1.5f };
-  bool m_isUnlit{ false };
+  shading_model_type m_shadingModel = { KRMATERIAL_SHADING_MODEL_PBR };
 
   TransformedTexture m_anisotropyTexture{ KRTexture::TEXTURE_USAGE_MATERIAL_ANISOTROPY };
   float m_anisotropyStrength{ 0.f };
@@ -154,6 +160,9 @@ public:
   float m_attenuationDistance{ std::numeric_limits<float>::max() };
   hydra::Vector3 m_attenuationColor{ 1.f, 1.f, 1.f };
 
+  TransformedTexture transmissionTexture{ KRTexture::TEXTURE_USAGE_MATERIAL_TRANSMISSION };
+  float transmissionFactor = 0.f;
+
 private:
   bool getShaderValue(ShaderValue value, float* output) const final;
   bool getShaderValue(ShaderValue value, hydra::Vector2* output) const final;
diff --git a/kraken/resources/texture/KRTexture.h b/kraken/resources/texture/KRTexture.h
index 23cdd15..c4d01da 100755
--- a/kraken/resources/texture/KRTexture.h
+++ b/kraken/resources/texture/KRTexture.h
@@ -84,6 +84,7 @@ public:
     TEXTURE_USAGE_MATERIAL_SPECULAR = TEXTURE_USAGE_MATERIAL | 0x100,
     TEXTURE_USAGE_MATERIAL_SPECULAR_COLOR = TEXTURE_USAGE_MATERIAL | 0x200,
     TEXTURE_USAGE_MATERIAL_THICKNESS = TEXTURE_USAGE_MATERIAL | 0x400,
+    TEXTURE_USAGE_MATERIAL_TRANSMISSION = TEXTURE_USAGE_MATERIAL | 0x800,
 
 
   } texture_usage_t;