TurboGrafx16 OSSC Pro and Legacy AV In CoreGrafx II

>> YOUR LINK HERE: ___ http://youtube.com/watch?v=5pQg5lvevT0

(Best viewed at 1440p or 1080p, and a multiple of 60 Hz) • This video is demonstrating how an OSSC Pro and its Legacy AV In expansion process a CoreGrafx II console. Presumably, a PC Engine or TG-16 with an AV booster or cvbs mod will look very similar. • I should note immediately that the CD games are not being played on an actual CD expansion, but rather an fpga implementation via the Super HD System 3. This doesn't impact picture quality whatsoever. • I skipped a few 240p Test Suite patterns because some have intense flashing/flickering over cvbs. • Also, I found a bug in the SuperGrafx build of the 240p Test Suite in the audio tests I guess lol • Here are the games and software represented: • 0:00 - 4:23 240p Test Suite (cvbs) • 4:24 - 13:26 Akumajō Dracula X: Chi no Rondo* • 13:27 - 16:35 Bomber Man '93 • 16:36 - 23:11 Valkyrie no Densetsu • 23:12 - 29:37 Air Zonk • 29:38 - 31:23 Devil's Crush** • 31:42 - 37:05 Ginga Fukei Densetsu Sapphire • 37:06 - 40:43 240p Test Suite (RGB) • *aka Castlevania: Rondo of Blood • **aka Devil's Crash • So, uh, it may not be to everybody's taste, but since RGB isn't really a thing this family of hardware can natively output, I didn't really want to spend much time representing it. I decided I'd at least show how it fares in the 240p Test Suite as a bonus at the end of this video, but what I'm focusing on here is what you get with a stock system, and that means cvbs. • I'm so pleased with how the OSSC Pro rocks this. It's probably the best glowup of any console I've tested so far, a wonderful pairing. • Here are the settings I settled upon: • Contrast: 138 • Shaping Filter Y: SVHS 8 • Shaping Filter C: SH3 • NTSC Comb Str: Narrow • NTSC C Comb Taps: 5-3 • NTSC Comb C mode: Adaptive • NTSC Comb Y mode: Adaptive • Assume all others were defaults. • If you want an even sharper picture, you can try NTSC Comb Y Mode: Fixed (bottom) and then change the Shaping Filter Y to something more like NTSC 6 to still keep some semblance of continuity in the pixel art. It's kind of unreal how sharp this looks for composite! Arguably too sharp! • This has the upside of less flickery errors borne out of the Y/C filtering process, but breaks apart some dithering meshes that were probably intended to blend and can result in some static dots on outlines and flat shades, and some dottiness in scrolling at times. Will probably look better for some games than others. Experiment with different Y Shaping Filters to find a good balance of sharpness and erroneous filtering. • If you reference the settings I used in other systems up to this point, you'll notice that these are very different! The TG-16 family had quite a good reputation for nice cvbs output, and took a very unique approach to Y/C filtering for game consoles--the hardware level filter used is excellent at reducing rainbow crosstalk patterns on static images, and it is unbelievably sharp unlike most similar filters. It does break down a bit in motion, but for 1987, you couldn't ask for better. • Because it does things so differently, different settings ended up being most appropriate. • I couldn't really find a game that actually showed off the high res 512x224 mode--just Sherlock Holmes, which didn't really look too different in most menus, and really wasn't very exciting lol, so these are just 256x224 games. Maybe one or two is 320 wide? • For the RGB demonstration, this is the RGB output of the SHDS3. You can see it does have a mild flaw where it has some afterimages or ghost trails that go left to right, but otherwise does its job very well. If you use RGB, since there's no TG-16 preset, in order to get the best pixel sampling, you need to go into your Line Multiplier or Scaler options, go to Advanced timing, and change the horizontal sample rate . I found 910 is a sweet spot for 320x224 games, and 1024 for 256x224 games. I couldn't really find good settings for 512x224, but that's extremely rare on the system anyway. • I didn't bother recording the HDMI output because it's kind of a mess unless you use the 1280x720 mode due to pixel scaling issues I experienced in the past. Honestly, I didn't think about it until writing this, but it could be a really good fit for the OSSC Pro. Hmmm. • If you have any questions, feel free to ask in the comments.

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