diff --git a/SQCSim2021/engine.cpp b/SQCSim2021/engine.cpp
index f5732c6..f9c1bad 100644
--- a/SQCSim2021/engine.cpp
+++ b/SQCSim2021/engine.cpp
@@ -22,6 +22,10 @@ void Engine::Init()
 	glShadeModel(GL_SMOOTH);
 	glEnable(GL_LIGHTING);
 	glEnable(GL_LINE_SMOOTH);
+	glEnable(GL_CULL_FACE);
+
+	// Cull!
+	glCullFace(GL_BACK);
 
 	// Light
 	GLfloat light0Pos[4] = { 0.0f, CHUNK_SIZE_Y, 0.0f, 1.0f };
@@ -36,14 +40,12 @@ void Engine::Init()
 	glLightfv(GL_LIGHT0, GL_SPECULAR, light0Spec);
 
 	// Lumière de Skybox.
-	GLfloat light1Pos[4] = { 0.0f, 0.0f, 0.0f, 2.0f };
 	GLfloat light1Amb[4] = { 1.5f, 1.5f, 1.5f, 1.5f };
 	GLfloat light1Diff[4] = { 1.f, 1.f, 1.f, 1.f };
-	GLfloat light1Spec[4] = { 1.f, 1.f, 1.f, 1.0f };
-	glLightfv(GL_LIGHT1, GL_POSITION, light1Pos);
+	GLfloat light1Emi[4] = { 2.f, 2.f, 2.f, 2.f };
 	glLightfv(GL_LIGHT1, GL_AMBIENT, light1Amb);
 	glLightfv(GL_LIGHT1, GL_DIFFUSE, light1Diff);
-	glLightfv(GL_LIGHT1, GL_SPECULAR, light1Spec);
+	glLightfv(GL_LIGHT1, GL_EMISSION, light1Emi);
 
 	// Blend
 	glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
@@ -94,59 +96,59 @@ void Engine::Render(float elapsedTime)
 	glEnable(GL_LIGHT1);
 	glBegin(GL_QUADS);
 
+	glTexCoord2f(0, .5f);
+	glVertex3f(5.f, -5.f, 5.f);
+	glTexCoord2f(.25f, .5f);
+	glVertex3f(-5.f, -5.f, 5.f);
+	glTexCoord2f(.25f, .75f);
+	glVertex3f(-5.f, 5.f, 5.f);
 	glTexCoord2f(0, .75f);
 	glVertex3f(5.f, 5.f, 5.f);
-	glTexCoord2f(.25f, .75f);
-	glVertex3f(-5.f, 5.f, 5.f);
-	glTexCoord2f(.25f, .50f);
-	glVertex3f(-5.f, -5.f, 5.f);
-	glTexCoord2f(0, .50f);
-	glVertex3f(5.f, -5.f, 5.f);
 
-	glTexCoord2f(.25f, .75f);
-	glVertex3f(-5.f, 5.f, 5.f);
-	glTexCoord2f(.50f, .75f);
-	glVertex3f(-5.f, 5.f, -5.f);
-	glTexCoord2f(.50f, .50f);
+	glTexCoord2f(.25f, .5f);
+	glVertex3f(-5.f, -5.f, 5.f);
+	glTexCoord2f(.50f, .5f);
 	glVertex3f(-5.f, -5.f, -5.f);
-	glTexCoord2f(.25f, .50f);
-	glVertex3f(-5.f, -5.f, 5.f);
-
 	glTexCoord2f(.50f, .75f);
 	glVertex3f(-5.f, 5.f, -5.f);
-	glTexCoord2f(.75f, .75f);
-	glVertex3f(5.f, 5.f, -5.f);
-	glTexCoord2f(.75f, .50f);
+	glTexCoord2f(.25f, .75f);
+	glVertex3f(-5.f, 5.f, 5.f);
+
+	glTexCoord2f(.50f, .5f);
+	glVertex3f(-5.f, -5.f, -5.f);
+	glTexCoord2f(.75f, .5f);
 	glVertex3f(5.f, -5.f, -5.f);
-	glTexCoord2f(.50f, .50f);
-	glVertex3f(-5.f, -5.f, -5.f);
-
 	glTexCoord2f(.75f, .75f);
 	glVertex3f(5.f, 5.f, -5.f);
+	glTexCoord2f(.50f, .75f);
+	glVertex3f(-5.f, 5.f, -5.f);
+
+	glTexCoord2f(.75f, .5f);
+	glVertex3f(5.f, -5.f, -5.f);
+	glTexCoord2f(1, .5f);
+	glVertex3f(5.f, -5.f, 5.f);
 	glTexCoord2f(1, .75f);
 	glVertex3f(5.f, 5.f, 5.f);
-	glTexCoord2f(1, .50f);
-	glVertex3f(5.f, -5.f, 5.f);
-	glTexCoord2f(.75f, .50f);
-	glVertex3f(5.f, -5.f, -5.f);
+	glTexCoord2f(.75f, .75f);
+	glVertex3f(5.f, 5.f, -5.f);
 
 	glTexCoord2f(.25f, 1);
-	glVertex3f(5.f, 5.f, 5.f);
-	glTexCoord2f(.50f, 1);
 	glVertex3f(5.f, 5.f, -5.f);
+	glTexCoord2f(.50f, 1);
+	glVertex3f(5.f, 5.f, 5.f);
 	glTexCoord2f(.50f, .75f);
-	glVertex3f(-5.f, 5.f, -5.f);
-	glTexCoord2f(.25f, .75f);
 	glVertex3f(-5.f, 5.f, 5.f);
+	glTexCoord2f(.25f, .75f);
+	glVertex3f(-5.f, 5.f, -5.f);
 
-	glTexCoord2f(.50f, .50f);
-	glVertex3f(-5.f, -5.f, -5.f);
-	glTexCoord2f(.75f, .50f);
-	glVertex3f(5.f, -5.f, -5.f);
-	glTexCoord2f(.75f, .25f);
-	glVertex3f(5.f, -5.f, 5.f);
 	glTexCoord2f(.50f, .25f);
 	glVertex3f(-5.f, -5.f, 5.f);
+	glTexCoord2f(.75f, .25f);
+	glVertex3f(5.f, -5.f, 5.f);
+	glTexCoord2f(.75f, .5f);
+	glVertex3f(5.f, -5.f, -5.f);
+	glTexCoord2f(.50f, .5f);
+	glVertex3f(-5.f, -5.f, -5.f);
 
 	glEnd();
 	glEnable(GL_DEPTH_TEST);
@@ -246,13 +248,13 @@ void Engine::Render(float elapsedTime)
 
 	glNormal3f(0, -1, 0);
 	glTexCoord2f(0, 0); 
-	glVertex3f(-0.5f, -0.5f, -0.5f);
-	glTexCoord2f(0, 1);
 	glVertex3f(-0.5f, -0.5f, 0.5f);
+	glTexCoord2f(0, 1);
+	glVertex3f(-0.5f, -0.5f, -0.5f);
 	glTexCoord2f(1, 1);
-	glVertex3f(0.5f, -0.5f, 0.5f);
-	glTexCoord2f(1, 0);
 	glVertex3f(0.5f, -0.5f, -0.5f);
+	glTexCoord2f(1, 0);
+	glVertex3f(0.5f, -0.5f, 0.5f);
 	glDisable(GL_BLEND);
 	glEnd();
 }
diff --git a/SQCSim2021/media/textures/grid.png b/SQCSim2021/media/textures/grid.png
new file mode 100644
index 0000000..0f6bdca
Binary files /dev/null and b/SQCSim2021/media/textures/grid.png differ