Want to know some info when authors make emulators...

**JLF65** · September 8th, 2009, 01:25

There are a number of different scalers that are supposed to look better than filtered: 2XSaI, HQ2X, etc. Here's a link to get you started on that:

http://en.wikipedia.org/wiki/Pixel_a...ing_algorithms

**MrTeressaBond** · September 9th, 2009, 23:20

hahaha, funny you have linked me that because I've looked upon that a couple years ago when i was still on this very much when it came to enhancing older generation games, and initially i liked it, but came to dislike it because even though they did a good job i didnt really like the results.

in addition, i know with the methods i mentioned or not better results can be achieved, and they wouldnt work for 3d games either.

therefore this brings me back to my previous question, how do they render the games at a higher resolution so that Supersampling and Anistrophic filtering ca be used?

**JLF65** · September 10th, 2009, 00:36

You'll have to define "they" as you keep asking about things you don't name. Of course no one can tell you what "they" are using since we haven't the foggiest notion of who you're talking about. All the emulators I've seen use the methods on the page linked above.

**MrTeressaBond** · September 10th, 2009, 01:55

hahaha sorry about that, 'they' refers to the filters; Supersampling and Anistrophic filtering

so now does this help make my question clearer by any chance?

u are right, very much like ZSNES, ive seen the Indiana Jones one before back 2 years ago and i didnt like it. And i can tell which one they use almost exactly because ive probably seen the same method used on the Ultimate Genisis Collection for the Xbox 360 and saw a sonic screenshot, i thought 'oh hell no'.

**JLF65** · September 10th, 2009, 04:43

I've not looked into that beyond the page I linked, and another on edge filtering in the frequency domain. This is something you'll just need to google for and work through what you find. There probably isn't a lot on it out there simply because it's sort of a "trade secret" to the programmers. "My edge enhancement is the best!!" If it's not part of an open source project, don't expect much info, if any.

Here's something to look at - a version of the Gens/GS emulator specifically tailored for displaying Sonic 2 in HD.

http://forums.sonicretro.org/index.php?showtopic=17323

**MrTeressaBond** · September 10th, 2009, 14:55

The link you have provided to the Sonic 2 HD is quite interesting and i alsmost very excited however once again upon having a closer look i can see the resizing method has a undesirable effect, which im kind of glad anyways.

Anyways i will have a look around, but i dont understand why (on what im asking and talking about) could be trade secret, but i suppose if one can programme the emulator to use the graphics card to do this filtering?

Also where would i discuss about advance prgramming for consoles around here?

in addition, i forgot to mention this but a few days ago when i was researching backward compatibility for the SMS/SMD etc. i came across KEGA by Steve Snake, and i must say this guy is a genius and i am very tempted to contact him about what i am doing and if he can help despite my small or limited knowlege, i am merely wanting to get this to happen but with great help with other who i will credit highly for their work. His work on his emulation of those console are apprantly accurate enough that any hardware glitches will even be emulated.

**JLF65** · September 10th, 2009, 18:20

You want boards that target specific consoles for more advanced info. For example, if you wish to talk about the SEGA 16 bit console and add-ons, your best place would be SpritesMind (by the way, Steve Snake is a member there).

http://gendev.spritesmind.net/forum/index.php

A better place for Dreamcast discussions would be DCEmulation.

http://dcemulation.org/phpBB/

A better place for PS2/PSP/PS3 would be PS2Dev.

http://forums.ps2dev.org/index.php

If you go to these places, please read all the old threads first to see if your questions are already answered (they usually are). Also be sure you're asking for specific advanced info and not generic beginner level programming. For example, go to any dev board and ask how to do collision detection for a 2D platformer and all you'll get is ridicule.

**MrTeressaBond** · November 6th, 2009, 00:41

Hello there, sorry for the late reply again, been abit busy with University and stuff, and finally got some money and needing to make films and etc (no i dont work), but i am still keen on this since i have something to help me abit on this.

i have chekced out those websites but not so thoroughly as one would have hoped for, i would indeed need to sign up and stuff, however they all look very advanced to me and im abit afraid going in with the image like a noob and asking a 'near' impossible question, a person with little knowlege but big ambition

Ive also done initial research on Supersampling and i think ive nailed it:

http://www.neoseeker.com/Hardware/faqs/kb/10,72.html

if i am correct, the process of Supersampling itself is resizing already of it own process, by allocating pixel nearby at a higher resolution and then sampling it down to its final display res. I believe from this that i will gain astonishing results from older games giving them new life but being extremely faithful and not like if they've been redrawn (like x2Sal and etc).

Because of wat im asking, do you think someone like Steve Snake would evr help a little guy like me for this project? and would have the patience as well on doing so? to even also stand the ongoing talks from me?

**JLF65** · November 6th, 2009, 17:54

You never know if you don't ask.

**MrTeressaBond** · November 7th, 2009, 00:14

Yes of course, but i dont knwo which of the sites to join and also how to ask as well, what do i ask? do i come up with my project? and spill the beans? Or do i ask relevant questions to what im asking for and etc.?

also, because of the brilliance of Kega Fusion is, i was thinking already of implenting that kind of code for hardware emulation because of its total accuracy which is exactly what im looking for, and im hoping whatever i am doing will bring it further or make better use of it. Do you think he would ever let anyone use or touch his precious thing? or even do a job for someone volenteeringly?