ShaderEffect::GeometryHints( ShaderEffect::HINT_GRID | ShaderEffect::HINT_DEPTH_BUFFER ));
shaderEffect.SetUniform( "uCenter", Vector2(0.0f, 0.0f), ShaderEffect::COORDINATE_TYPE_VIEWPORT_POSITION );
ShaderEffect::GeometryHints( ShaderEffect::HINT_GRID | ShaderEffect::HINT_DEPTH_BUFFER ));
shaderEffect.SetUniform( "uCenter", Vector2(0.0f, 0.0f), ShaderEffect::COORDINATE_TYPE_VIEWPORT_POSITION );