diff --git a/BaseGLProject/MyGLWindow.cpp b/BaseGLProject/MyGLWindow.cpp
index e1e49cf..78dd178 100644
--- a/BaseGLProject/MyGLWindow.cpp
+++ b/BaseGLProject/MyGLWindow.cpp
@@ -112,7 +112,7 @@ void MyGlWindow::shaderSetup()
 	shaders["Skybox"] = new Shader("skybox.vert", "skybox.frag");
 	shaders["Skybox"]->uniformFlags = MVP_FLAG | MODEL_MATRIX_FLAG | SKYBOX_TEX_FLAG;
 	shaders["Skybox"]->addUniform("ReflectFactor", (float)0.1);
-	shaders["Skybox"]->addUniform("RefractionIndex", (float)0.95);
+	shaders["Skybox"]->addUniform("RefractionIndex", glm::vec3(0.65, 0.67, 0.69));
 
 }
 
diff --git a/BaseGLProject/skybox.frag b/BaseGLProject/skybox.frag
index 0fdac0b..e571766 100644
--- a/BaseGLProject/skybox.frag
+++ b/BaseGLProject/skybox.frag
@@ -3,7 +3,10 @@
 out vec4 FragColors;
 
 in vec3 reflectDir;
-in vec3 refractDir;
+
+in vec3 refractDir_R;
+in vec3 refractDir_G;
+in vec3 refractDir_B;
 
 uniform float ReflectFactor;
 uniform bool DrawSkyBox;
@@ -12,7 +15,10 @@ uniform samplerCube CubeMapTex;
 void main()
 { 	
 	vec4 reflectColor = texture(CubeMapTex, reflectDir);
-	vec4 refractColor = texture(CubeMapTex, refractDir);
+	float refractColor_R = texture(CubeMapTex, refractDir_R).r;
+	float refractColor_G = texture(CubeMapTex, refractDir_G).g;
+	float refractColor_B = texture(CubeMapTex, refractDir_B).b;
+	vec4 refractColor = vec4(refractColor_R, refractColor_G, refractColor_B, 1); 
 	if (DrawSkyBox == true)
 		FragColors = reflectColor;
 	else	
diff --git a/BaseGLProject/skybox.vert b/BaseGLProject/skybox.vert
index b8ba62b..705aa0e 100644
--- a/BaseGLProject/skybox.vert
+++ b/BaseGLProject/skybox.vert
@@ -6,9 +6,11 @@ layout(location=2) in vec3 v_color;
 layout(location=3) in vec2 v_texmap;
 
 out vec3 reflectDir;
-out vec3 refractDir;
+out vec3 refractDir_R;
+out vec3 refractDir_G;
+out vec3 refractDir_B;
 
-uniform float RefractionIndex;
+uniform vec3 RefractionIndex;
 uniform mat4 ModelMatrix;
 uniform mat4 mvp;
 uniform bool DrawSkyBox;
@@ -27,7 +29,9 @@ void main(void)
 		vec3 N = normalize(ModelMatrix * vec4(v_normal, 1)).xyz;
 		vec3 V = normalize(WorldCamPos - coord3d);
 		reflectDir = reflect(-V, N);
-		refractDir = refract(-V, N, RefractionIndex);
+		refractDir_R = refract(-V, N, RefractionIndex.r);
+		refractDir_G = refract(-V, N, RefractionIndex.g);
+		refractDir_B = refract(-V, N, RefractionIndex.b);
 	}
 
 	gl_Position = mvp * vec4(coord3d, 1.0f);