++Arthur Dent wrote:I doubt that is the case.cpebbles wrote:1080i to 1080p should be noticeable to anyone
I have no idea why interlacing, an ancient hack to make TVs work with slow vacuum tube technology, has been preserved in HDTV standards, but I doubt it makes any difference in this case. The console is almost certainly natively generating progressive frames with an effective resolution much less than 1080p. Sending them as 1080i may in fact be fully equivalent to 1080p if the native frame rate is 30 fps, anyway.
This whole deal with 720p, 1080i, 1080p, and so on is mostly a marketing scam, imo. Most video is compressed and this, among other factors, limits quality far more than the signal output resolution.
I originally thought the only reason for interlacing was for OTA bandwidth considerations...but it all gets compressed anyways to fit into the channel, so my guess is it has to do with the compression ratio (1080i is less than 720p, I think)...but I don't know if that's going to matter all that much. The more likely explanation is ease of implementing in hardware for a small benefit that can be largely marketed as "more lines are better". I don't remember and I'm too tired to look it up.


