diff --git a/KREngine/KREngine/Classes/KRLight.cpp b/KREngine/KREngine/Classes/KRLight.cpp
index 76334e7..cfc7ee8 100644
--- a/KREngine/KREngine/Classes/KRLight.cpp
+++ b/KREngine/KREngine/Classes/KRLight.cpp
@@ -262,8 +262,11 @@ void KRLight::render(KRCamera *pCamera, std::vector<KRLight *> &lights, const KR
     }
 }
 
+#endif
+
 
 void KRLight::allocateShadowBuffers(int cBuffers) {
+#if TARGET_OS_IPHONE
     // First deallocate buffers no longer needed
     for(int iShadow = cBuffers; iShadow < KRENGINE_MAX_SHADOW_BUFFERS; iShadow++) {
         if (shadowDepthTexture[iShadow]) {
@@ -307,6 +310,7 @@ void KRLight::allocateShadowBuffers(int cBuffers) {
     }
     
     m_cShadowBuffers = cBuffers;
+#endif
 }
 
 
@@ -329,7 +333,8 @@ int KRLight::configureShadowBufferViewports(const KRViewport &viewport)
 }
 
 void KRLight::renderShadowBuffers(KRCamera *pCamera)
-{  
+{
+#if TARGET_OS_IPHONE
     for(int iShadow=0; iShadow < m_cShadowBuffers; iShadow++) {
         if(!shadowValid[iShadow]) {
             shadowValid[iShadow] = true;
@@ -371,9 +376,10 @@ void KRLight::renderShadowBuffers(KRCamera *pCamera)
             getScene().render(pCamera, m_shadowViewports[iShadow].getVisibleBounds(), m_shadowViewports[iShadow], KRNode::RENDER_PASS_SHADOWMAP, true);
         }
     }
+#endif
 }
 
-#endif
+
 
 int KRLight::getShadowBufferCount()
 {
diff --git a/KREngine/KREngine/Classes/KRMaterial.cpp b/KREngine/KREngine/Classes/KRMaterial.cpp
index ed92c46..05a19a2 100644
--- a/KREngine/KREngine/Classes/KRMaterial.cpp
+++ b/KREngine/KREngine/Classes/KRMaterial.cpp
@@ -92,21 +92,33 @@ bool KRMaterial::save(const std::string& path) {
         fprintf(f, "Ns %f\n", m_ns);
         if(m_ambientMap.size()) {
             fprintf(f, "map_Ka %s.pvr -s %f %f -o %f %f\n", m_ambientMap.c_str(), m_ambientMapScale.x, m_ambientMapScale.y, m_ambientMapOffset.x, m_ambientMapOffset.y);
+        } else {
+            fprintf(f, "# map_Ka filename.pvr -s 1.0 1.0 -o 0.0 0.0\n");
         }
         if(m_diffuseMap.size()) {
             fprintf(f, "map_Kd %s.pvr -s %f %f -o %f %f\n", m_diffuseMap.c_str(), m_diffuseMapScale.x, m_diffuseMapScale.y, m_diffuseMapOffset.x, m_diffuseMapOffset.y);
+        } else {
+            fprintf(f, "# map_Kd filename.pvr -s 1.0 1.0 -o 0.0 0.0\n");
         }
         if(m_specularMap.size()) {
             fprintf(f, "map_Ks %s.pvr -s %f %f -o %f %f\n", m_specularMap.c_str(), m_specularMapScale.x, m_specularMapScale.y, m_specularMapOffset.x, m_specularMapOffset.y);
+        } else {
+            fprintf(f, "# map_Ks filename.pvr -s 1.0 1.0 -o 0.0 0.0\n");
         }
         if(m_normalMap.size()) {
             fprintf(f, "map_Normal %s.pvr -s %f %f -o %f %f\n", m_normalMap.c_str(), m_normalMapScale.x, m_normalMapScale.y, m_normalMapOffset.x, m_normalMapOffset.y);
+        } else {
+            fprintf(f, "# map_Normal filename.pvr -s 1.0 1.0 -o 0.0 0.0\n");
         }
         if(m_reflectionMap.size()) {
             fprintf(f, "map_Reflection %s.pvr -s %f %f -o %f %f\n", m_reflectionMap.c_str(), m_reflectionMapScale.x, m_reflectionMapScale.y, m_reflectionMapOffset.x, m_reflectionMapOffset.y);
+        } else {
+            fprintf(f, "# map_Reflection filename.pvr -s 1.0 1.0 -o 0.0 0.0\n");
         }
         if(m_reflectionCube.size()) {
             fprintf(f, "map_ReflectionCube %s.pvr\n", m_reflectionCube.c_str());
+        } else {
+            fprintf(f, "# map_ReflectionCube cubemapname");
         }
         switch(m_alpha_mode) {
             case KRMATERIAL_ALPHA_MODE_OPAQUE:
diff --git a/KREngine/KREngine/Classes/KRResource+fbx.cpp b/KREngine/KREngine/Classes/KRResource+fbx.cpp
index c290863..bc25931 100644
--- a/KREngine/KREngine/Classes/KRResource+fbx.cpp
+++ b/KREngine/KREngine/Classes/KRResource+fbx.cpp
@@ -589,7 +589,7 @@ KRNode *LoadMesh(KRNode *parent_node, std::vector<KRResource *> &resources, KFbx
         std::string light_map = pNode->GetName();
         light_map.append("_lightmap");
         
-        KRInstance *new_instance = new KRInstance(parent_node->getScene(), pNode->GetName(), pNode->GetName(), light_map, 0.0f);
+        KRInstance *new_instance = new KRInstance(parent_node->getScene(), pNode->GetName(), pNode->GetName(), light_map, 0.0f, true);
         return new_instance;
     } else {
         return NULL;
diff --git a/KREngine/KREngine/Classes/KRShaderManager.cpp b/KREngine/KREngine/Classes/KRShaderManager.cpp
index 8481813..36a56c6 100644
--- a/KREngine/KREngine/Classes/KRShaderManager.cpp
+++ b/KREngine/KREngine/Classes/KRShaderManager.cpp
@@ -182,7 +182,11 @@ bool KRShaderManager::selectShader(KRCamera &camera, const KRShader *pShader, co
         bool bSameShader = strcmp(pShader->getKey(), m_szCurrentShaderKey) == 0;
         if(!bSameShader) {
             strcpy(m_szCurrentShaderKey, pShader->getKey());
+#if TARGET_OS_IPHONE
             return pShader->bind(camera, viewport, matModel, lights, renderPass);
+#else
+            return false;
+#endif
         } else {
             return true;
         }