While the current research is comprehensive when describing the technical and technological processes involved here,
Got that far and realized that was going to be a "Dolly Parton sentence"-- top-heavy. And what was coming next was going to be the end, the big conclusion (we need more discussion of XYZ before we proceed). And the big zinger should generally be in a sentence of its own, as it will "sound" more final then. So I went instead with two sentences:
The current research is comprehensive when describing the technical and technological processes involved in digital manipulation. However, before we proceed further into this venture, we should discuss the philosophical issue of how we can determine reality once seeing is no longer believing.
Actually, I think there needs (for rhythm and finality) to be a couple more syllables around "reality". Will fiddle.
Anyway, this is an example of why, when a sentence becomes long and complex, we should always consider breaking it into two sentences. We might not want to, but there are often good "sound" reasons to make the big point its own sentence.