diff --git a/core/Screen.cpp b/core/Screen.cpp
index 71154bd..8ba1ee4 100644
--- a/core/Screen.cpp
+++ b/core/Screen.cpp
@@ -64,7 +64,7 @@ Screen::Screen() {
 
 void Screen::Enable() {
   glBindFramebuffer(GL_FRAMEBUFFER, framebuffer);
-  glClearColor(0.5f, 0.5f, 0.5f, 1.0f);
+  glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
   glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
   glEnable(GL_DEPTH_TEST);
 }
diff --git a/demo/main.lua b/demo/main.lua
index efdb7ba..fbe7960 100644
--- a/demo/main.lua
+++ b/demo/main.lua
@@ -32,20 +32,21 @@ function init()
    light.color = couch.Vector3(1.0, 1.0, 1.0)
    light.ambient = 0.2
    light.diffuse = 1.0
-   light.specular = 0.01
+   light.specular = 0.1
    couch.Node.GetRoot().children:Append(light)
    
    ball = couch.Mesh.FromFile("cube.obj")
    material = ball:GetMaterial(0)
-   material.ambient = WHITE
+   material.ambient = RED
+   material.diffuse = RED
+   material.usesTex = true
+   material.tex = couch.Texture.FromFile("railing.png")
    ball:SetMaterial(0, material)
    couch.Node.GetRoot().children:Append(ball)
    
    ball1 = couch.Mesh.FromFile("ball.obj")
    print(material.diffuse.b)
    material = ball1:GetMaterial(0)
-   material.tex = couch.Texture.FromFile("container.png")
-   material.usesTex = true
    ball1:SetMaterial(0, material)
    couch.Node.GetRoot().children:Append(ball1)