16:9 correction option

[GoogleCodeExporter]

It would be nice if genplus would have the 16:9 correction as the NES and
SNES emulators for the Wii do. I find that on my 40" LCD the 4:3 aspect
ratio is far better.

Original issue reported on code.google.com by simonhar...@gmail.com on 4 Mar 2009 at 12:37

[GoogleCodeExporter]

I also have the same request for Hugo GX and SMS plus. Shall I add to their 
issue
pages? Cheers

Original comment by simonhar...@gmail.com on 4 Mar 2009 at 12:42

[GoogleCodeExporter]

in Video options, by setting the Aspect to MANUAL, you can adjust the 
horizontal and
vertical scaling. SNES and NES emulators do the same thing but apply some 
automatic
values (using -90 should reproduce a 4:3 aspect ratio on your 16:9 scrreen)

you can also make your TV switch to 4:3 manually, the result should be slightly
better than stretching the image on the emulator side 

what happen is that when the TV is setup in 16:9 , it will STRETCH any video 
signal
output from the Wii by a 4:3 ratio to fit the screen. Emulators generally 
render the
screen at the same size of the original, which had 4:3 aspect ratio (4:3 x 4:3 
= 16:9).

To "compensate" this, what is done (on SNES/NES emulator with 16:9 
correction... or
with the option changes I told you in genesis plus) is to SHRINK the original 
image
width by a 4:3 ratio FIRST so that it will appear normally on a 16:9 screen 
AFTER it
has been stretched by the TV

so in fact, by doing this, the image is altered (shrinked then stretched) and 
the
output result can be very bad (depends on TV and filtering used)

That's why it's always better not to do ANY correction and configure the TV in 
4:3
mode (this should be possible on every kind of TV, check your installation 
guide) so
that no stretching occurs.

Original comment by ekeeke31@gmail.com on 6 Mar 2009 at 10:25

• Added labels: Type-Enhancement
• Removed labels: Type-Defect

[GoogleCodeExporter]

Thanks for the detailed explanation, ekeeke31. I'm now happily using the 4:3 
option
on the TV. 

Original comment by simonhar...@gmail.com on 6 Mar 2009 at 3:09

[GoogleCodeExporter]

Original comment by ekeeke31@gmail.com on 6 Mar 2009 at 3:30

• Changed state: WontFix

[GoogleCodeExporter]

This has been added as an option when selecting the Video Aspect: ORIGINAL 
(16:9).
This automatically set the scaling settings to keep the corrcet aspect ratio 
even on
16:9 screen.

Original comment by ekeeke31@gmail.com on 15 Sep 2009 at 2:23

• Changed state: Verified