Yes, I gathered it was procedural fractal textures. What I meant was that, if you use RTO to render objects - no actual displacement will be applied, even procedural displacement will be converted to bump mapping. It appears to be bumpy from the centre outwards but right at the edges(where the object is outlined against the sky), you only see the default object's faces, before any shaders are applied.
If you chose to
not use RTO, then any procedural displacements would still be visible around the edges. I just think it might look even better doing it that way.
