message: Fix backface issue in lit-cube sample
diff: @@ -261,10 +261,10 @@ class MainActivity : Activity() {
  .put(Vertex(-1.0f, 1.0f, -1.0f, tfNX))
  .put(Vertex(-1.0f, -1.0f, -1.0f, tfNX))
  // Face -Y
  - .put(Vertex(-1.0f, -1.0f, -1.0f, tfNY))
  .put(Vertex(-1.0f, -1.0f, 1.0f, tfNY))
  - .put(Vertex( 1.0f, -1.0f, 1.0f, tfNY))
  + .put(Vertex(-1.0f, -1.0f, -1.0f, tfNY))
  .put(Vertex( 1.0f, -1.0f, -1.0f, tfNY))
  + .put(Vertex( 1.0f, -1.0f, 1.0f, tfNY))
  // Face +Y
  .put(Vertex(-1.0f, 1.0f, -1.0f, tfPY))
  .put(Vertex(-1.0f, 1.0f, 1.0f, tfPY))
  