Fix forgotten material properties for meshes (also seems to have been...

Fix forgotten material properties for meshes (also seems to have been forgotten for cubes previously). This allows transparent png images to work properly

src/content_cao.cpp

@@ -923,6 +923,11 @@ class GenericCAO : public ClientActiveObject
 					m_prop.visual_size.X));
 			u8 li = m_last_light;
 			setMeshColor(m_meshnode->getMesh(), video::SColor(255,li,li,li));
+
+			m_meshnode->setMaterialFlag(video::EMF_LIGHTING, false);
+			m_meshnode->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
+			m_meshnode->setMaterialType(video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF);
+			m_meshnode->setMaterialFlag(video::EMF_FOG_ENABLE, true);
 		}
 		else if(m_prop.visual == "mesh"){
 			infostream<<"GenericCAO::addToScene(): mesh"<<std::endl;
@@ -936,6 +941,11 @@ class GenericCAO : public ClientActiveObject
 						m_prop.visual_size.X));
 				u8 li = m_last_light;
 				setMeshColor(m_animated_meshnode->getMesh(), video::SColor(255,li,li,li));
+
+				m_animated_meshnode->setMaterialFlag(video::EMF_LIGHTING, false);
+				m_animated_meshnode->setMaterialFlag(video::EMF_BILINEAR_FILTER, false);
+				m_animated_meshnode->setMaterialType(video::EMT_TRANSPARENT_ALPHA_CHANNEL_REF);
+				m_animated_meshnode->setMaterialFlag(video::EMF_FOG_ENABLE, true);
 			}
 			else
 				errorstream<<"GenericCAO::addToScene(): Could not load mesh "<<m_prop.mesh<<std::endl;