Load glow scene, moved drawing to scene struct

data/shaders/debugmarker/mesh.frag

@@ -19,7 +19,7 @@ void main()
 	vec3 L = normalize(inLightVec);
 	vec3 V = normalize(inViewVec);
 	vec3 R = reflect(-L, N);
-	vec3 diffuse = max(dot(N, L), 0.0) * inColor;
+	vec3 diffuse = max(dot(N, L), 0.25) * inColor;
 	vec3 specular = pow(max(dot(R, V), 0.0), 16.0) * vec3(0.75);
 	outFragColor = vec4(diffuse * 1.75 + specular, 1.0);		
 }