Aha ! Got the same idea a while ago.
ENB and SweetFX both use DirectX9, while Uru renders using DirectX8. So, in order to use them, first you need the ENB convertor to "force" Uru to render using DirectX9 (available on the ENB's website).
That's enough to
load the game using the ENB or SweetFX. However, once you decide to leave the Relto, the game instantly crashes
Same if you want to dynamically load a page using PtPageInNode(). Any attempt to load stuff will fail if you use the convertor...
That said, I had several compatibility issues between nVidia optimus and ENB. One could say optimus has compatibility issues with
everything (not just wrappers, it even breaks unmodded games). So maybe the crash is caused by optimus, I didn't think of it at the time.
While on the Relto I could see HDR and bloom work even on Plasma (no need for real-time lighting or anything). However, as Deledrius said, they don't always look fine (for instance, books are very hard to read). In a lot of cases, Cyan pre-baked things like ambient occlusion, or hand-placed sunshafts and blooming around windows, which actually fake things pretty well.
Using graphic mods would still be a huge improvement, but require a lot of tweaking to look fine (especially for Fan-Ages).
Deledrius wrote:There's no need to add side-loaded hacks when the engine can be improved directly
Unfortunately, that's untrue for Complete Chronicles where most Fan-Ages are available.
and it's not likely to be included in Gehn overnight It's true however some effects (like parallax mapping or sunshafts) would require direct modification of Cyan's Ages... Not the easiest thing here.
Either way, in my humble opinion, sometimes it's best to have no HDR or blooming, rather than having ugly looking overbloom and DoF, stupid 4-seconds-long eye adaptation, and such. Some more recent game like RealMyst ME or Skyrim proved me sometimes it's best to COMPLETELY avoid these.
On the other hand, if setup correctly, these effects can really make the difference. I think the best example is Morrowind, which is actually older than Uru... Yet if you have a look at
these screenshots with Morrowind's graphic extender, it looks like the game is just a few years old.