diff --git a/homework/homework1/homework1.cpp b/homework/homework1/homework1.cpp
index 4705722..4012170 100644
--- a/homework/homework1/homework1.cpp
+++ b/homework/homework1/homework1.cpp
@@ -295,16 +295,16 @@ VulkanglTFModel::~VulkanglTFModel()
 		//get distributions of node
 		if (inputNode.translation.size() == 3)
 		{
-			node->translation = glm::make_vec3(inputNode.translation.data());
+			node->matrix =glm::translate(node->matrix,glm::vec3(glm::make_vec3(inputNode.translation.data())));
 		}
 		if (inputNode.scale.size() == 3)
 		{
-			node->scale = glm::make_vec3(inputNode.scale.data());
+			node->matrix =glm::scale(node->matrix,glm::vec3(glm::make_vec3(inputNode.scale.data())));
 		}
 		if (inputNode.rotation.size() == 4)
 		{	//rotation is given by quaternion
 			glm::quat q = glm::make_quat(inputNode.rotation.data());
-			node->rotation = glm::mat4(q);
+			node->matrix = glm::mat4(q);
 		}
 		if (inputNode.matrix.size() == 16)
 		{
@@ -345,7 +345,7 @@ VulkanglTFModel::~VulkanglTFModel()
 					if (glTFPrimmitive.attributes.find("POSITION") != glTFPrimmitive.attributes.end())
 					{
 						const tinygltf::Accessor& accessor = input.accessors[glTFPrimmitive.attributes.find("POSITION")->second];
-						const tinygltf::BufferView view = input.bufferViews[accessor.bufferView];
+						const tinygltf::BufferView &view = input.bufferViews[accessor.bufferView];
 						positionBuffer = reinterpret_cast<const float*> (&(input.buffers[view.buffer].data[accessor.byteOffset + view.byteOffset]));
 						vertexCount = accessor.count;
 					}
@@ -356,6 +356,7 @@ VulkanglTFModel::~VulkanglTFModel()
 						normalsBuffer = reinterpret_cast<const float*> (&(input.buffers[view.buffer].data[accessor.byteOffset + view.byteOffset]));
 
 					}
+					//texture and tangent data 
 					if (glTFPrimmitive.attributes.find("TEXCOORD_0") != glTFPrimmitive.attributes.end())
 					{
 						const tinygltf::Accessor& accessor = input.accessors[glTFPrimmitive.attributes.find("TEXCOORD_0")->second];
@@ -363,6 +364,14 @@ VulkanglTFModel::~VulkanglTFModel()
 						texcoordsBuffer = reinterpret_cast<const float*> (&(input.buffers[view.buffer].data[accessor.byteOffset + view.byteOffset]));
 
 					}
+					if (glTFPrimmitive.attributes.find("TANGENT") != glTFPrimmitive.attributes.end())
+					{
+						const tinygltf::Accessor& accessor = input.accessors[glTFPrimmitive.attributes.find("TANGENT")->second];
+						const tinygltf::BufferView& view = input.bufferViews[accessor.bufferView];
+						tangentsBuffer = reinterpret_cast<const float*> (&(input.buffers[view.buffer].data[accessor.byteOffset + view.byteOffset]));
+
+					}
+					//skin joints and weights data
 					if (glTFPrimmitive.attributes.find("JOINTS_0") != glTFPrimmitive.attributes.end())
 					{
 						const tinygltf::Accessor& accessor = input.accessors[glTFPrimmitive.attributes.find("JOINTS_0")->second];
@@ -377,6 +386,7 @@ VulkanglTFModel::~VulkanglTFModel()
 						jointWeightsBuffer = reinterpret_cast<const float*> (&(input.buffers[view.buffer].data[accessor.byteOffset + view.byteOffset]));
 
 					}
+
 					hasSkin = (jointIndicesBuffer && jointWeightsBuffer);
 
 					for (size_t v = 0; v < vertexCount; v++)
@@ -386,6 +396,7 @@ VulkanglTFModel::~VulkanglTFModel()
 						vert.uv = texcoordsBuffer ? glm::make_vec2(&texcoordsBuffer[v*2]) : glm::vec3(0.0f);
 						vert.normal = glm::normalize(glm::vec3(normalsBuffer ? glm::make_vec3(&normalsBuffer[v * 3]) : glm::vec3(0.0f)));
 						vert.color = glm::vec3(1.0f,1.0f,nodeIndex);
+						vert.tangent = tangentsBuffer ? glm::normalize(glm::make_vec3(&tangentsBuffer[v * 4])) : glm::vec3(0.0f);
 						vert.jointIndices = hasSkin ? glm::vec4(glm::make_vec4(&jointIndicesBuffer[v * 4])) : glm::vec4(0.0f);
 						vert.jointWeights = hasSkin ? glm::make_vec4(&jointWeightsBuffer[v * 4]) : glm::vec4(0.0f);
 						vertexBuffer.push_back(vert);
@@ -472,7 +483,7 @@ VulkanglTFModel::~VulkanglTFModel()
 			nodeMatrics[node->index] = getNodeMatrix(node);
 			for (auto& child : node->children)
 			{
-			updateNodeMatrix(child, nodeMatrics);
+				updateNodeMatrix(child, nodeMatrics);
 			}
 		}
 		
@@ -590,11 +601,10 @@ VulkanglTFModel::~VulkanglTFModel()
 				vkCmdBindDescriptorSets(commandBuffer, VK_PIPELINE_BIND_POINT_GRAPHICS, pipelineLayout, 1, 1, &skins[node.skin].descriptorSet, 0, nullptr);
 			}
 			
-			
-
 			for (VulkanglTFModel::Primitive& primitive : node.mesh.primitives) {
 				if (primitive.indexCount > 0) 
 				{
+					
 					// Get the texture index for this primitive
 					VulkanglTFModel::Texture texture = textures[materials[primitive.materialIndex].baseColorTextureIndex];
 					// Bind the descriptor for the current primitive's texture
diff --git a/homework/homework1/homework1.h b/homework/homework1/homework1.h
index a4b30be..5198a25 100644
--- a/homework/homework1/homework1.h
+++ b/homework/homework1/homework1.h
@@ -41,6 +41,7 @@ public:
 		glm::vec3 normal;
 		glm::vec2 uv;
 		glm::vec3 color;
+		glm::vec3 tangent;
 		glm::vec3 jointIndices;
 		glm::vec3 jointWeights;
 	};
@@ -208,6 +209,7 @@ public:
 			glm::vec4 lightPos = glm::vec4(5.0f, 5.0f, 5.0f, 1.0f);
 			glm::vec4 viewPos;
 		} values;
+		vks::Buffer animationBuffer;
 	} shaderData;
 
 	struct Pipelines {