diff --git a/obj/goldbar.mtl b/obj/goldbar.mtl
new file mode 100644
index 0000000..f231bdf
--- /dev/null
+++ b/obj/goldbar.mtl
@@ -0,0 +1,10 @@
+# Blender MTL File: 'None'
+# Material Count: 1
+
+newmtl None
+Ns 500
+Ka 0.8 0.8 0.8
+Kd 0.8 0.8 0.8
+Ks 0.8 0.8 0.8
+d 1
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diff --git a/obj/goldbar.obj b/obj/goldbar.obj
new file mode 100644
index 0000000..152a4f4
--- /dev/null
+++ b/obj/goldbar.obj
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+# Blender v3.0.1 OBJ File: ''
+# www.blender.org
+mtllib goldbar.mtl
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+f 37/257/81 187/253/199 190/71/71 36/70/70
+f 193/262/202 194/263/203 197/206/164 196/214/172
+f 194/263/203 195/259/201 198/207/165 197/206/164
+f 3/264/147 19/265/163 193/262/202 21/266/148
+f 19/265/163 18/267/162 194/263/203 193/262/202
+f 18/267/162 17/260/159 195/259/201 194/263/203
+f 111/118/98 113/13/13 198/207/165 195/259/201
+f 75/16/16 168/199/161 198/207/165 113/13/13
+f 21/266/148 193/262/202 196/214/172 20/261/117
+f 199/268/204 200/269/205 203/270/206 202/271/207
+f 200/269/205 201/243/193 204/272/208 203/270/206
+f 202/271/207 203/270/206 206/273/209 205/274/210
+f 203/270/206 204/272/208 207/73/73 206/273/209
+f 1/275/111 66/276/198 199/268/204 11/277/110
+f 66/276/198 67/278/197 200/269/205 199/268/204
+f 67/278/197 68/242/192 201/243/193 200/269/205
+f 121/144/121 123/147/124 204/272/208 201/243/193
+f 123/147/124 125/74/74 207/73/73 204/272/208
+f 63/154/28 127/150/125 210/279/211 24/280/173
+f 207/73/73 159/72/72 158/191/153 206/273/209
+f 206/273/209 158/191/153 157/190/152 205/274/210
+f 205/274/210 157/190/152 56/205/106 9/281/108
+f 132/38/38 59/104/94 30/39/39 80/30/30
+f 10/282/112 202/271/207 205/274/210 9/281/108
+f 11/277/110 199/268/204 202/271/207 10/282/112
+f 208/283/212 209/284/213 212/285/214 211/286/215
+f 209/284/213 210/279/211 213/287/216 212/285/214
+f 211/286/215 212/285/214 215/233/186 214/231/185
+f 212/285/214 213/287/216 216/234/187 215/233/186
+f 7/288/136 26/289/177 208/283/212 29/290/137
+f 26/289/177 25/291/176 209/284/213 208/283/212
+f 25/291/176 24/280/173 210/279/211 209/284/213
+f 127/150/125 129/153/128 213/287/216 210/279/211
+f 129/153/128 131/37/37 216/234/187 213/287/216
+f 131/37/37 79/29/29 174/217/175 216/234/187
+f 28/292/138 211/286/215 214/231/185 27/230/82
+f 29/290/137 208/283/212 211/286/215 28/292/138
+f 155/130/107 156/128/105 116/124/101 115/125/102
diff --git a/texture/goldbar/base.png b/texture/goldbar/base.png
new file mode 100644
index 0000000..d7ff539
Binary files /dev/null and b/texture/goldbar/base.png differ
diff --git a/texture/goldbar/normal.png b/texture/goldbar/normal.png
new file mode 100644
index 0000000..67bab43
Binary files /dev/null and b/texture/goldbar/normal.png differ
diff --git a/u08-normalmap/fragmentShader.glsl b/u08-normalmap/fragmentShader.glsl
index 988fe5a..25335f3 100644
--- a/u08-normalmap/fragmentShader.glsl
+++ b/u08-normalmap/fragmentShader.glsl
@@ -4,7 +4,7 @@ in vec3 normal;
 in vec3 fragmentPosition;
 in vec2 textureCoordinate;
 
-flat in mat3 inverseTBN;
+flat in mat3 TBN;
 
 
 uniform vec4 ambientColor;
@@ -27,10 +27,10 @@ float emissionStrength = 0.0;
 void main() {
 	vec4 color = texture(myTexture, textureCoordinate);
 
-	vec3 norm = inverseTBN * normalize((texture(myNormal, textureCoordinate).xyz * 2 - vec3(1,1,1)));
+	vec3 norm = normalize((texture(myNormal, textureCoordinate).xyz * 2 - vec3(1,1,1)));
 
-	vec3 lightDir = normalize(lightPosition - fragmentPosition);
-	vec3 eyeDir = (-normalize(fragmentPosition));
+	vec3 lightDir = TBN * normalize(lightPosition - fragmentPosition);
+	vec3 eyeDir = TBN * (-normalize(fragmentPosition));
 
 	float diff = max(dot(norm, lightDir), 0.0);
 
diff --git a/u08-normalmap/vertexShader.glsl b/u08-normalmap/vertexShader.glsl
index 6e56627..551573f 100644
--- a/u08-normalmap/vertexShader.glsl
+++ b/u08-normalmap/vertexShader.glsl
@@ -12,7 +12,7 @@ uniform mat4 projection;
 out vec3 normal;
 out vec3 fragmentPosition;
 out vec2 textureCoordinate;
-flat out mat3 inverseTBN;
+flat out mat3 TBN;
 void main() {
 	textureCoordinate = aTextureCoordinate;
 
@@ -21,11 +21,11 @@ void main() {
 
 	vec3 bitangent = normalize(cross(normal, tangent));
 
-	inverseTBN = inverse(transpose(mat3(
+	TBN = transpose(mat3(
 		tangent,
 		bitangent,
 		normal
-	)));
+	));
 
 
 	vec4 modelViewPos = modelView * vec4(aPosition, 1.0);