diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 3cef7ac..15d650c 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -9,20 +9,26 @@ set(MAIN_FILE
 )
 
 set(GLTF_MODEL_LOADER
+	"${PLUMAGE_RENDER}/glTFModel_Marco.h"
+	"${PLUMAGE_RENDER}/glTFModel_common.h"
 	"${PLUMAGE_RENDER}/glTFBoundingBox.h"
 	"${PLUMAGE_RENDER}/glTFBoundingBox.cpp"
 	"${PLUMAGE_RENDER}/glTFTexture.h" 
 	"${PLUMAGE_RENDER}/glTFTexture.cpp"
-	"render/glTFModel.h" 
-	"render/glTFModel.cpp" 
-)
+	"${PLUMAGE_RENDER}/glTFModel.h" 
+	"${PLUMAGE_RENDER}/glTFModel.cpp" 
+	"${PLUMAGE_RENDER}/glTFMaterial.h" 
+	"${PLUMAGE_RENDER}/glTFMaterial.cpp" 
+	
+	"${PLUMAGE_RENDER}/glTFPrimitive.cpp"
+ "render/glTFPrimitive.h")
 
 set(VULKAN_BASE
-	"render/VulkanBase_Common.h"
-	"render/VulkanDevice.h"
-	"render/VulkanDevice.cpp"
-	"render/VulkanTextureSampler.h"
-	"render/VulkanTextureSampler.cpp"
+	"${PLUMAGE_RENDER}/VulkanBase_Marco.h"
+	"${PLUMAGE_RENDER}/VulkanDevice.h"
+	"${PLUMAGE_RENDER}/VulkanDevice.cpp"
+	"${PLUMAGE_RENDER}/VulkanTextureSampler.h"
+	"${PLUMAGE_RENDER}/VulkanTextureSampler.cpp"
 )
 
 # wayland requires additional source files
diff --git a/src/render/VulkanBase_Common.h b/src/render/VulkanBase_Marco.h
similarity index 100%
rename from src/render/VulkanBase_Common.h
rename to src/render/VulkanBase_Marco.h
diff --git a/src/render/VulkanDevice.h b/src/render/VulkanDevice.h
index be86484..68a0c88 100644
--- a/src/render/VulkanDevice.h
+++ b/src/render/VulkanDevice.h
@@ -1,7 +1,7 @@
 #ifndef VULKANDEVICE_H
 #define VULKANDEVICE_H
 
-#include "VulkanBase_Common.h"
+#include "VulkanBase_Marco.h"
 
 #include <vulkan/vulkan.h>
 #include <vector>
diff --git a/src/render/VulkanTextureSampler.h b/src/render/VulkanTextureSampler.h
index 7eb6956..e5b877e 100644
--- a/src/render/VulkanTextureSampler.h
+++ b/src/render/VulkanTextureSampler.h
@@ -1,7 +1,7 @@
 #ifndef VULKANTEXTURESAMPLER_H
 #define VULKANTEXTURESAMPLER_H
 
-#include "VulkanBase_Common.h"
+#include "VulkanBase_Marco.h"
 
 #include <vulkan/vulkan.h>
 
diff --git a/src/render/glTFBoundingBox.cpp b/src/render/glTFBoundingBox.cpp
index 425e71f..1f864f1 100644
--- a/src/render/glTFBoundingBox.cpp
+++ b/src/render/glTFBoundingBox.cpp
@@ -3,49 +3,56 @@
 GLTFLOADER_NAMESPACE_BEGIN
 
 
-glTFBoundingBOX::glTFBoundingBOX()
-	: m_isValid(false)
+glTFBoundingBox::glTFBoundingBox()
+	: m_isValid(true)
 	, m_Min(glm::vec3(0,0,0))
 	, m_Max(glm::vec3(1,1,1))
 {
 }
 
-glTFBoundingBOX::glTFBoundingBOX(glm::vec3 min, glm::vec3 max)
-	: m_isValid(false)
+glTFBoundingBox::glTFBoundingBox(glm::vec3 min, glm::vec3 max)
+	: m_isValid(true)
 	, m_Min(min)
 	, m_Max(max)
 {
 }
 
-glTFBoundingBOX::~glTFBoundingBOX()
+glTFBoundingBox::~glTFBoundingBox()
 {
 }
 
-glTFBoundingBOX glTFBoundingBOX::getAABB(glm::mat4 matrix)
+glTFBoundingBox glTFBoundingBox::getAABB(glm::mat4 matrix)
 {
 	glm::vec3 min = glm::vec3(matrix[3]);
 	glm::vec3 max = min;
 	glm::vec3 v0, v1;
 
 	glm::vec3 right = glm::vec3(matrix[0]);
-	v0 = right * m_Min.x;
-	v1 = right * m_Max.x;
+	v0 = right * m_min.x;
+	v1 = right * m_max.x;
 	min += glm::min(v0, v1);
 	max += glm::max(v0, v1);
 
 	glm::vec3 up = glm::vec3(matrix[1]);
-	v0 = up * m_Min.y;
-	v1 = up * m_Max.y;
+	v0 = up * m_min.y;
+	v1 = up * m_max.y;
 	min += glm::min(v0, v1);
 	max += glm::max(v0, v1);
 
 	glm::vec3 back = glm::vec3(matrix[2]);
-	v0 = back * m_Min.z;
-	v1 = back * m_Max.z;
+	v0 = back * m_min.z;
+	v1 = back * m_max.z;
 	min += glm::min(v0, v1);
 	max += glm::max(v0, v1);
 
-	return glTFBoundingBOX(min, max);
+	return glTFBoundingBox(min, max);
+}
+
+void glTFBoundingBox::setBoundingBox(glm::vec3 min, glm::vec3 max)
+{
+	m_min = min;
+	m_max = max;
+	m_isValid = true;
 }
 
 
diff --git a/src/render/glTFBoundingBox.h b/src/render/glTFBoundingBox.h
index 657a692..f5b98a6 100644
--- a/src/render/glTFBoundingBox.h
+++ b/src/render/glTFBoundingBox.h
@@ -1,24 +1,26 @@
-#ifndef GLTFBOUNDINGBOX_H
+#ifndef GLTFBOUNDINGBOX_H
 #define GLTFBOUNDINGBOX_H
 
-#include "glTFModel_Common.h"
-#include <glm/glm.hpp>
+#include "glTFModel_Marco.h"
+#include <glm.hpp>
 
 GLTFLOADER_NAMESPACE_BEGIN
 
-class glTFBoundingBOX
+class glTFBoundingBox
 {
 public:
-	glTFBoundingBOX();
-	glTFBoundingBOX(glm::vec3 min, glm::vec3 max);
-	~glTFBoundingBOX();
+	glTFBoundingBox();
+	glTFBoundingBox(glm::vec3 min, glm::vec3 max);
+	~glTFBoundingBox();
 
-	glTFBoundingBOX getAABB(glm::mat4 matrix);
+	glTFBoundingBox getAABB(glm::mat4 matrix);
+
+	void setBoundingBox(glm::vec3 min, glm::vec3 max);
 
 private:
 
-	glm::vec3 m_Min;
-	glm::vec3 m_Max;
+	glm::vec3 m_min;
+	glm::vec3 m_max;
 	bool m_isValid = false;
 };
 
diff --git a/src/render/glTFMaterial.cpp b/src/render/glTFMaterial.cpp
new file mode 100644
index 0000000..34d5053
--- /dev/null
+++ b/src/render/glTFMaterial.cpp
@@ -0,0 +1,19 @@
+#include "glTFMaterial.h"
+
+
+GLTFLOADER_NAMESPACE_BEGIN
+
+glTFMaterial::glTFMaterial()
+{
+}
+
+glTFMaterial::~glTFMaterial()
+{
+}
+
+
+
+
+
+
+GLTFLOADER_NAMESPACE_END
\ No newline at end of file
diff --git a/src/render/glTFMaterial.h b/src/render/glTFMaterial.h
new file mode 100644
index 0000000..e467119
--- /dev/null
+++ b/src/render/glTFMaterial.h
@@ -0,0 +1,62 @@
+#ifndef GLTFMATERIAL_H
+#define GLTFMATERIAL_H
+
+#include "glTFModel_Marco.h"
+
+#include "glTFModel_common.h"
+
+#include "glTFTexture.h"
+
+#include <glm.hpp>
+
+GLTFLOADER_NAMESPACE_BEGIN
+
+class glTFMaterial
+{
+public:
+	glTFMaterial();
+	~glTFMaterial();
+
+private:
+
+	AlphaMode m_alphaMode = ALPHAMODE_OPAQUE;
+	float m_alphaCutoff = 1.0f;
+	float m_metallicFactor = 1.0f;
+	float m_roughnessFactor = 1.0f;
+	glm::vec4 m_baseColorFactor = glm::vec4(1.0f);
+	glm::vec4 m_emissiveFactor = glm::vec4(1.0f);
+	glTFTexture* m_baseColorTexture = nullptr;
+	glTFTexture* m_metallicRoughnessTexture = nullptr;
+	glTFTexture* m_normalTexture = nullptr;
+	glTFTexture* m_occlusionTexture = nullptr;
+	glTFTexture* m_emissiveTexture = nullptr;
+	bool m_doubleSided = false;
+	struct TexCoordSets {
+		uint8_t baseColor = 0;
+		uint8_t metallicRoughness = 0;
+		uint8_t specularGlossiness = 0;
+		uint8_t normal = 0;
+		uint8_t occlusion = 0;
+		uint8_t emissive = 0;
+	} m_texCoordSets;
+	struct Extension {
+		glTFTexture* specularGlossinessTexture = nullptr;
+		glTFTexture* diffuseTexture = nullptr;
+		glm::vec4 diffuseFactor = glm::vec4(1.0f);
+		glm::vec3 specularFactor = glm::vec3(0.0f);
+	} m_extension;
+	struct PbrWorkflows {
+		bool metallicRoughness = true;
+		bool specularGlossiness = false;
+	} m_pbrWorkflows;
+	VkDescriptorSet m_descriptorSet = VK_NULL_HANDLE;
+
+};
+
+
+
+
+
+GLTFLOADER_NAMESPACE_END
+
+#endif // !GLTFMATERIAL_H
diff --git a/src/render/glTFModel_Common.h b/src/render/glTFModel_Common.h
index dfe4d56..72c520f 100644
--- a/src/render/glTFModel_Common.h
+++ b/src/render/glTFModel_Common.h
@@ -1,30 +1,22 @@
-#pragma once
+#ifndef GLTFMODEL_COMMON_H
+#define GLTFMODEL_COMMON_H
 
-/// 命名空间宏
-#define GLTFLOADER_NAMESPACE_BEGIN namespace glTFLoader {
-#define GLTFLOADER_NAMESPACE_END }
+#include "glTFModel_Marco.h"
 
-/// windows 导入导出宏，GLTFLOADER_EXPORTS将在cmake中定义
-/// unix-like 下提供符号可见性控制
-#ifdef GLTFLOADER_STATIC_BUILD
-	#define GLTFLOADER_API
-	#define GLTFLOADER_LOCAL
-#else
-	#ifdef _WIN32
-		#ifdef GLTFLOADER_EXPORTS
-			#define GLTFLOADER_API __declspec(dllexport)
-			#define GLTFLOADER_LOCAL
-		#else
-			#define GLTFLOADER_API __declspec(dllimport)
-			#define GLTFLOADER_LOCAL
-		#endif
-	#else
-		#if __GNUC__ >= 4 || defined(__clang__)
-			#define GLTFLOADER_API __attribute__ ((visibility ("default")))
-			#define GLTFLOADER_LOCAL __attribute__ ((visibility ("hidden")))
-		#else
-			#define GLTFLOADER_API
-			#define GLTFLOADER_LOCAL
-		#endif
-	#endif
-#endif
\ No newline at end of file
+GLTFLOADER_NAMESPACE_BEGIN
+
+enum AlphaMode
+{
+	ALPHAMODE_OPAQUE,
+	ALPHAMODE_MASK,
+	ALPHAMODE_BLEND
+};
+
+
+
+GLTFLOADER_NAMESPACE_END
+
+
+
+
+#endif // !GLTFMODEL_COMMON_H
diff --git a/src/render/glTFModel_Marco.h b/src/render/glTFModel_Marco.h
new file mode 100644
index 0000000..dfe4d56
--- /dev/null
+++ b/src/render/glTFModel_Marco.h
@@ -0,0 +1,30 @@
+#pragma once
+
+/// 命名空间宏
+#define GLTFLOADER_NAMESPACE_BEGIN namespace glTFLoader {
+#define GLTFLOADER_NAMESPACE_END }
+
+/// windows 导入导出宏，GLTFLOADER_EXPORTS将在cmake中定义
+/// unix-like 下提供符号可见性控制
+#ifdef GLTFLOADER_STATIC_BUILD
+	#define GLTFLOADER_API
+	#define GLTFLOADER_LOCAL
+#else
+	#ifdef _WIN32
+		#ifdef GLTFLOADER_EXPORTS
+			#define GLTFLOADER_API __declspec(dllexport)
+			#define GLTFLOADER_LOCAL
+		#else
+			#define GLTFLOADER_API __declspec(dllimport)
+			#define GLTFLOADER_LOCAL
+		#endif
+	#else
+		#if __GNUC__ >= 4 || defined(__clang__)
+			#define GLTFLOADER_API __attribute__ ((visibility ("default")))
+			#define GLTFLOADER_LOCAL __attribute__ ((visibility ("hidden")))
+		#else
+			#define GLTFLOADER_API
+			#define GLTFLOADER_LOCAL
+		#endif
+	#endif
+#endif
\ No newline at end of file
diff --git a/src/render/glTFPrimitive.cpp b/src/render/glTFPrimitive.cpp
new file mode 100644
index 0000000..c1e3571
--- /dev/null
+++ b/src/render/glTFPrimitive.cpp
@@ -0,0 +1,25 @@
+#include "glTFPrimitive.h"
+
+GLTFLOADER_NAMESPACE_BEGIN
+
+
+
+glTFPrimitive::glTFPrimitive(uint32_t firstIndex, uint32_t indexCount, uint32_t vertexCount, glTFMaterial& material)
+	:m_firstIndex(firstIndex)
+	,m_indexCount(indexCount)
+	,m_vertexCount(vertexCount)
+	,m_material(material)
+{
+	m_hasIndices = indexCount > 0;
+}
+
+glTFPrimitive::~glTFPrimitive()
+{
+}
+
+void glTFPrimitive::setBoundingBox(glm::vec3 min, glm::vec3 max)
+{
+	m_boundingBox.setBoundingBox(min, max);
+}
+
+GLTFLOADER_NAMESPACE_END
\ No newline at end of file
diff --git a/src/render/glTFPrimitive.h b/src/render/glTFPrimitive.h
new file mode 100644
index 0000000..9505e7e
--- /dev/null
+++ b/src/render/glTFPrimitive.h
@@ -0,0 +1,39 @@
+#ifndef GLTFPRIMITIVE_H
+#define GLTFPRIMITIVE_H
+
+#include "glTFModel_Marco.h"
+
+#include "glTFMaterial.h"
+#include "glTFBoundingBox.h"
+
+#include <glm.hpp>
+#include <cstdint>
+
+GLTFLOADER_NAMESPACE_BEGIN
+
+class GLTFLOADER_API glTFPrimitive
+{
+public:
+	glTFPrimitive(uint32_t firstIndex, uint32_t indexCount, uint32_t vertexCount, glTFMaterial& material);
+	
+	~glTFPrimitive();
+
+	void setBoundingBox(glm::vec3 min, glm::vec3 max);
+
+private:
+
+	uint32_t m_firstIndex;
+	uint32_t m_indexCount;
+	uint32_t m_vertexCount;
+	glTFMaterial& m_material;
+	bool m_hasIndices;
+	glTFBoundingBox m_boundingBox;
+	
+
+};
+
+
+
+GLTFLOADER_NAMESPACE_END
+
+#endif // !GLTFPRIMITIVE_H
diff --git a/src/render/glTFTexture.h b/src/render/glTFTexture.h
index e4f6953..19680ec 100644
--- a/src/render/glTFTexture.h
+++ b/src/render/glTFTexture.h
@@ -1,7 +1,7 @@
 #ifndef GLTFTEXTURE_H
 #define GLTFTEXTURE_H
 
-#include "glTFModel_Common.h"
+#include "glTFModel_Marco.h"
 
 #include "VulkanDevice.h"
 #include "VulkanTextureSampler.h"