[#82] Add asset loader tangent attribute

modules/asset_loader/include/vkcv/asset/asset_loader.hpp

@@ -114,7 +114,8 @@ enum class PrimitiveType : uint32_t {
     POSITION = 1,
     NORMAL = 2,
     TEXCOORD_0 = 3,
-    TEXCOORD_1 = 4
+    TEXCOORD_1 = 4,
+    TANGENT = 5
 };
 
 /** These integer values are used the same way in OpenGL, Vulkan and glTF. This

modules/asset_loader/src/vkcv/asset/asset_loader.cpp

@@ -177,8 +177,11 @@ int loadScene(const std::string &path, Scene &scene){
                     attribute.type = PrimitiveType::NORMAL;
                 } else if (attrib.first == "TEXCOORD_0") {
                     attribute.type = PrimitiveType::TEXCOORD_0;
-                } else if (attrib.first == "TEXCOORD_1") {
+                }
+                else if (attrib.first == "TEXCOORD_1") {
                     attribute.type = PrimitiveType::TEXCOORD_1;
+                } else if (attrib.first == "TANGENT") {
+                    attribute.type = PrimitiveType::TANGENT;
                 } else {
                     return 0;
                 }