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16bit vs 32bit

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WyrmMaster

I'm a little teapot Senior
Joined
Dec 17, 2000
Location
Montana, USA
There was a thread a while back about the difference between 32bit and 16bit color. Im not sure you would see much difference in games, depends on the game of courese, but these shots of my desktop pattern show the difference quite clearly.
 
E

ebola

Guest
yep 32 bit is 100000000000 times better for pictures. part of the problem with that picture is that all of the colors are similar. its like if i make a picture that uses 64000 shades of green and it looks like crap in 16 bit but awesome in 32 bit. if i used 64000 colors for a picture with an equal balance of red, green, blue, etc, then it wouldn't be quite so obvious. also with moving pixels i don't think it matters as much because you dont have time to see flaws.
 

SP

Member
Joined
Dec 20, 2000
Yes, 32Bit is better because it offers more colors, but perhaps an even more important reason 32Bit is better than 16Bit is because 32Bit has more bits for an Alpha channel. 32Bit color is essentaill 24Bit color ( 8 bits for each R,G, and B component) with an additional 8 bits for an alpha channel. The alpha channels is the tranparency of the color and is used for stuff like alpha blending to create all kinds of nice effects. So, it becomes pretty cllear why effects like fog, smoke, shadows and other semi-transparent things can really benefit from 32Bit color.
 

samuknow

Member
Joined
Feb 19, 2001
Location
Indianapolis, IN
SP (Jun 09, 2001 04:01 a.m.):
Yes, 32Bit is better because it offers more colors, but perhaps an even more important reason 32Bit is better than 16Bit is because 32Bit has more bits for an Alpha channel. 32Bit color is essentaill 24Bit color ( 8 bits for each R,G, and B component) with an additional 8 bits for an alpha channel. The alpha channels is the tranparency of the color and is used for stuff like alpha blending to create all kinds of nice effects. So, it becomes pretty cllear why effects like fog, smoke, shadows and other semi-transparent things can really benefit from 32Bit color.

SP is right, you will really see the diff in the things he mentioned plus explosions are a world of difference.
 

supergenius74

Member
Joined
Mar 1, 2001
Location
Fort Wayne, IN.
I believe I was the one who posted that a while back and I still am not 100% convinced. I agree that the poof of smoke durring an explosion in Q3 does look a little better but if I pause to admire it I die....so it really doesn't benifit me. I would say running in 16 bit and a higher res and fsaa is going to look and run better in one of the newer FPS or specifically deathmatch games. but on the other hand if your running an older game then by all means run 32-bit but most older games are not created with true 32 bit textures. I also believe we haven't seen the full extent of 32 bit games, I have compared 2d greyscale images of 16bit and 32 bit and yes there is actually a difference but i think that most game creators don't take the time to really use it to the fullest extent, in other words they don't have the time to use all the shades but that is just my opinion...:)
 

Phil

Senior Member
Joined
Jan 13, 2001
Location
Bolton, UK
It won't be long until 32bit is a standard, when I first got my pc 640x480 was considered a luxery and hi-res and look where we are now 1280x1024 anti-alias per pixel shaded what hav-ya
 

Phil

Senior Member
Joined
Jan 13, 2001
Location
Bolton, UK
the way you say compromise between performance and speed suggests there is an option below 16bit.
Current vid cards are that fast that 32bit is not just a nice option but you may as well run at it, as long as you get steady frame rates over 60fps or so then it looks smooth.
 

dolemitecomputer

Member
Joined
Apr 30, 2001
Location
Florida
I hope I don't make this thread a pain to download but I took some quick screen shots using Quake 3. The 16-bit settings are 16-bit color depth and textures. The same for 32-bit.
You will see a few differences...the text for the menus appears better in the 32-bit shots....does seem to more complete. Also the waterfall seems to have better texture in 32-bit and the sky is different which I'm not sure is a good or bad thing. The green tunnel shots are not much different from each other but as you can see the frame rate count is basically the same in both color settings.
 

Phil

Senior Member
Joined
Jan 13, 2001
Location
Bolton, UK
Sorry to complain but on my lousy 56k (only on a full moon when the planets align and I stand in a bucket muttering the I'm a little tea cup short and spout) took ages downloading them, might I suggest uploading them to a geocities account or something with a link instead, that way those who want to see them can and those that don't don't have too.
 

Pitspawn

Member
Joined
Apr 25, 2001
Location
Essex, UK
Lets face it people, 16bit is very soon to become obsolete. 32 Bit colour has been round since TNT cards were top of the range. Theres only one reason that 32bit isn't standard...Because ram manufacturers cant pull their act together and make some fast ram. The only decent VRAM manufacturers ive seen are EliteMT capable of hitting 600Mhz DDR.

Its a shame really because I've read a report from god (John Carmack) telling that 32Bit isnt even enough at times. The internal calculations should be far greater than 32Bit especially now because games are using multitexturing and hordes of sprites with tranclucency.

The only time i think 16bit is acceptable is at high resolution (>=1024x768) with GOOD dithering techniques.

Thankfully i havent had to put up with 16bit for over 3 years, I've got through a Geforce 256 Annihilator Pro, Geforce GTS2 and now a HP3 Geforce3. All were perfectly capable of >=80fps @ 32bit in all games i ran at the time.
IMHO anything above 80fps is unoticable to 80fps.
 

jeff_harrison_344

Senior Member
Joined
Jan 23, 2001
I disagree that 16bit is obselete. In about half of my games that I own, I run a lot in 16bit. You see, 16bit is like the 'option' of the games. If there was only 32bit, then what if You had a game where it would be very hard to tell between 16 and 32bit, but you HAD to run in 32bit, therefore decreasing your frames.

I have about 5 games where it is hard to tell between 16 and 32bit, and I have the choice:

1024x768 in 32bit and get 60FPS
Or I could run a higher res. at 16bit and get 60+FPS

And I would virtually not know the difference in colors!

Now I kknow that there are a lot of newer games out, where 16bit, well, looks like garbage, to say the least, but I still disagree that 16bit is obselete. I hope that 16bit is around as long as it needs to be that extra 'option' for me.


My $.02