[FEATURE] Bi-Linear Filter.

JAPPsmash · Post by **JAPPsmash** » Thu Feb 03, 2005 3:54 pm

It'd be good if any future version of ZSNESW comes with Bi-Linear filter for 3D objects such as F-Zero tracks and the likes, along with Mode 7 to increase image quality...

Post by **Agozer** » Thu Feb 03, 2005 4:18 pm

This has been asked before, and it isn't happening IIRC.

Why exactly, I don't remember.

Dead · Post by **Dead** » Thu Feb 03, 2005 4:35 pm

SNES9x BiLinear . ^ . . . . . . . ^ . ZSNES HQ2X

Screenshots for the sake of comparison.

EDIT: Captions for screenshots to make them useful.

Post by **Nach** » Thu Feb 03, 2005 4:58 pm

Use the Linux version and you get the filter.

Noxious Ninja · Post by **Noxious Ninja** » Thu Feb 03, 2005 5:30 pm

Nach wrote:Use the Linux version and you get the filter.

But that's a full-screen filter and not filtering of the mode7 plane, right?

Post by **Nach** » Thu Feb 03, 2005 5:41 pm

Noxious Ninja wrote:
Nach wrote:Use the Linux version and you get the filter.
But that's a full-screen filter and not filtering of the mode7 plane, right?

I'm not sure, but it looks like the screen changes when mod7 is in use.
BTW, anyone know what kind of filtering hi res mode 7 uses?

JAPPsmash · Post by **JAPPsmash** » Thu Feb 03, 2005 6:23 pm

Hi-Res Mode 7 does not use any filter in ZSNESW... and my Windows won't run Linux version...

Dead · Post by **Dead** » Thu Feb 03, 2005 7:05 pm

This thread gives me an idea. If it is possible to apply a bi-linear filter to mode7 planes, then could it be posssible to apply a HQXx filter? I would never request such a thing, of course. It's something interesting to think about. I'm an interpolation junkie.

Has anybody seen this site before?

It's a crime to post a link to that site without posting a link to HiEnd3D.

Noxious Ninja · Post by **Noxious Ninja** » Thu Feb 03, 2005 7:24 pm

Syvalion wrote:Has anybody seen this site before?

Some of those filters look quite nice.

blackmyst · Post by **blackmyst** » Thu Feb 03, 2005 7:31 pm

Here's something I posted in another thread a while ago, don't know if it's of any use:

Windows version, high res mode 7, interpolation disabled/enabled

Deathlike2 · Post by **Deathlike2** » Thu Feb 03, 2005 7:39 pm

Whatever filters that are available (bilinear aka interpolation in Windows/DOS, 2xsai, super2xsai, supereagle, hq2x...).. they are applied on all modes.

However, when Hi Res Mode 7 is checked, the filters are not applied when Mode 7 is used (is it even necessary to enable this feature?)

So, you would want to uncheck this option if you want filtered output when Mode 7 is used.

There are no "3D objects"...just sprites (like the F-Zero car) which gets filtered if any form of filtering is enabled.

I really don't know what Hi Res Mode 7 is supposed to do really (I cannot see the actual changes/effects)...

blackmyst · Post by **blackmyst** » Thu Feb 03, 2005 8:35 pm

Deathlike2 wrote:I really don't know what Hi Res Mode 7 is supposed to do really (I cannot see the actual changes/effects)...

*points up to screenshots*

Look at the difference between the trees and the track. It's very noticable with mode 7 planes that stretch off into the horizon, but less so when viewed from above (like the FF6 worldmap on foot, you can barely tell if it's enabled. Get on a chocobo though, and you'll see it clearly).

Deathlike2 · Post by **Deathlike2** » Thu Feb 03, 2005 8:54 pm

I see the screenshots.. but I'm thinking it like this (I've confirmed what you show, but the gamma seems off in both pics)

I can confirm the filtering in the sky in FF3.. but that's it.

I need to see the difference between Hi Res Mode 7 enabled and disabled. I can see filtering (interpolation) being applied, but it's not in the Mode 7 part (the track, the sky in FF3)

I don't even know the original intention.. because all Hi Res Mode 7 does is not let the filtering (when any of them are checked) to be applied on a Mode 7 surface...

Clements · Post by **Clements** » Thu Feb 03, 2005 9:11 pm

blackmyst wrote:
Deathlike2 wrote:I really don't know what Hi Res Mode 7 is supposed to do really (I cannot see the actual changes/effects)...
*points up to screenshots*

Look at the difference between the trees and the track. It's very noticable with mode 7 planes that stretch off into the horizon, but less so when viewed from above (like the FF6 worldmap on foot, you can barely tell if it's enabled. Get on a chocobo though, and you'll see it clearly).

The Mode 7 track is identical in both pictures. When Hi res mode 7 is used, it prevents the track being filtered at all. The background is not mode 7 so it can be filtered with the interpolation.

Certain mode 7 effects (perhaps all) can not be filtered at all (so are pixelated no matter what options you enable), such as:

-the Nintendo logo in Killer Instinct (which I posted a while back),
-the victory screen in Super Bomberman 3 after winning in Battle mode
-the zooming in effect in the intro of Legend of Mystical Ninja
-the map in Final Fantasy 6
-the track in F-Zero

... all of which are filtered via Snes9x's Bilinear mode 7 option. The Killer Instinct logo looks very nice in Snes9x while in ZSNES it looks like it is aliased around the edges. Hi res mode 7 is not analogous to this option.

JAPPsmash · Post by **JAPPsmash** » Thu Feb 03, 2005 9:17 pm

So Interpolated Mode 7 can be added in any future ZSNES version?

Deathlike2 · Post by **Deathlike2** » Thu Feb 03, 2005 9:35 pm

I see the differences now (I also stated it in my other post)..

You are better off just not enabling Hi Res Mode 7 to get "some" filtering (if any) in Mode 7... I see all the filtering modes work just fine in Mode 7 (well, it's not great, but ok) when Hi Res Mode 7 is not enabled...

It would be nice to filter Mode 7 better than it is now... bilinear filtering for Mode 7 would be cool...

creaothceann · Post by **creaothceann** » Thu Feb 03, 2005 9:59 pm

Deathlike2 wrote:I need to see the difference between Hi Res Mode 7 enabled and disabled.

Mode7 default
Mode7 hi-res

JAPPsmash · Post by **JAPPsmash** » Thu Feb 03, 2005 11:12 pm

That's what I don't mean... I mean the Mode 7 Bi-linear filtering (Snes9X), not Mode 7 Hi-Res nor Interpolation filtering...

Those things that affects 3D objects to make textures smoother.

Syvalion wrote:

Screenshots for the sake of comparison.

blackmyst · Post by **blackmyst** » Fri Feb 04, 2005 1:28 am

Clements wrote:The Mode 7 track is identical in both pictures. When Hi res mode 7 is used, it prevents the track being filtered at all.

Yes, and that's why I posted the screenshots, to show the difference between filtered and unfiltered high res mode 7, i.e. background filtered, mode 7 plane not.

MaxSt · Post by **MaxSt** » Fri Feb 04, 2005 6:57 am

Syvalion wrote: Screenshots for the sake of comparison.

Useless without a full description.

MaxSt · Post by **MaxSt** » Fri Feb 04, 2005 7:18 am

Nach wrote:BTW, anyone know what kind of filtering hi res mode 7 uses?

Each filter (hq2x, 2xsai, etc) handles mode 7 lines as it wishes...

Post by **Nach** » Fri Feb 04, 2005 9:42 am

MaxSt wrote:
Nach wrote:BTW, anyone know what kind of filtering hi res mode 7 uses?
Each filter (hq2x, 2xsai, etc) handles mode 7 lines as it wishes...

Yes. But what does the Hi Res Mode 7 filter do?

Nightcrawler · Post by **Nightcrawler** » Fri Feb 04, 2005 2:18 pm

Does anyone else remember reading that the Hi-Res mode 7 was just a line doubler or something to that effect? Or am I hallucinating?

Post by **Agozer** » Fri Feb 04, 2005 2:50 pm

Nightcrawler wrote:Does anyone else remember reading that the Hi-Res mode 7 was just a line doubler or something to that effect? Or am I hallucinating?

I wouldn't know about that, I've just heard/read that it doubles the resolution of Mode7 effects.

Noxious Ninja · Post by **Noxious Ninja** » Fri Feb 04, 2005 4:29 pm

Nach wrote:
MaxSt wrote:
Nach wrote:BTW, anyone know what kind of filtering hi res mode 7 uses?
Each filter (hq2x, 2xsai, etc) handles mode 7 lines as it wishes...
Yes. But what does the Hi Res Mode 7 filter do?

Look at creaothceann's pics. It *very noticeably* doubles the vertical resolution of mode 7 effects.