VDP 8x16 Interlace Mode

[mickagame]

Hello everybody.
I'm asking myself why there is not much game using 8x16 Interlace Mode?
Why developper were using 320x240 mode instead of high resolution mode available on the system (320*480)?

[cero]

It looks bad on many TVs.

[Miquel]

You need twice the memory for tiles, backgrounds and sprites alike, and there is no much to start with if you use all the others planes. So it’s a case between resolutions vs diversity, where variety is already somewhat scarce.
On lots of design questions memory is the underlying factor, today as ever.

Also 320x224 resembles more to other platforms, porting and so on.

[mickagame]

Thanks for your answers guys. It make sens.

[Miquel]

Also:
Working on 1:2 resolution is weird for graphical artist, or anyone else, I have never seen do it. Pixels are not square any more.
Doubled resolution is done by interlacing images (on different lines), not sure of the result quality on 90’s phosphor tv’s.

[TmEE co.(TM)]

It is good for still images, you see markedly higher detail. When things begin to move there will be various interlacing related artifacts appearing.
Here's couple experiments I made a while ago :
http://www.tmeeco.eu/SMD/HIRES.BIN
http://www.tmeeco.eu/SMD/INTERLAC.BIN

[danibus]

It is good for still images, you see markedly higher detail. When things begin to move there will be various interlacing related artifacts appearing.
Here's couple experiments I made a while ago :
http://www.tmeeco.eu/SMD/HIRES.BIN
http://www.tmeeco.eu/SMD/INTERLAC.BIN

Very nice. Is there any post about your experiments?

[TmEE co.(TM)]

Possibly but these are buried into past that is many years ago...