I would say SH4 has much better graphics than SH3. Yet I think regardless of all GWX3 goodies it is time to switch to SH4 platform anyway because SH3 is not perspective now and it is exhausted its potential. That is why some GWX-like approach to SH4/UBM is needed. Maybe OM+OMEGU mods would be be a nice point to start?
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