3DC

[Sanctusx2]

So what is it? Speculation on how much of a performance boost it will provide and in what operations?

 

[digitalwanderer]

http://www.rage3d.com/board/showthread.php?s=&threadid=33754845

from Inq:



quote:
--------------------------------------------------------------------------------


R420, Radeon X800PRO/XT features new compression

3Dc revealed


By Fuad Abazovic: Thursday 22 April 2004, 21:06

THERE'S ONLY one thing about the new ATI marchitecture that we haven’t reported on yet. ATI calls it 3Dc and it's a new way of compression that this chip will include.
I guess ATI didn’t want us in Canada because it didn’t want us to learn about its new chips and its capabilities too soon.

The last piece of the puzzle is this 3Dc compression that ATI is willing to supply as an open standard and this marchitecture looks very impressive, at least on paper.

3Dc will be able to perform similar level of quality as normal non compressed textures, we learn, but it wont be able to compress all data. It might lose information about light and shadow stuff.

It will certainly speed things up r and R300 marchitecture tweaked up to R420 runs things faster then without. ATI is claiming 8.8 to 1 compression for R300 if I remember correctly and it was always rather good with these optimisations. However, I'd urge caution about these claims, as the R300 could compress data in 8.8 to 1 ratio only if you were talking about a black screen with information about only the black shade.

It's another piece of BlueCrystalKit to make your 950/1000MHz memory look better, that's for sure.

EDITED BITS: Inq link: http://www.theinquirer.net/?article=15487

 

[Razor04]

It might lose information about light and shadow stuff.

My favorite line of that whole article...I just love the Inq's style of writing and the level of knowledge that their employees (Fudo in particular) have.

 

[Blacklash]

r

It might lose information about light and shadow stuff.

My favorite line of that whole article...I just love the Inq's style of writing and the level of knowledge that their employees (Fudo in particular) have.

I would agree. These are not issues I would want to be vague about and brush off as if they were inconsequential. Certainly seems a tad irresponsible. I was hoping someone had more detailed and accurate information.

 

[Ante P]

one "word":
lol

 

[DemoCoder]

If only vendors would adopt vector compression (PVR, where r u?) techniques. Oh, and what about FP texture compression? And where's my 3d-texture compression (not crappy DXVn) Oh, and where's my topological surgery or wavelet geometry compression?

 

[OpenGL guy]

Re: r

I was hoping someone had more detailed and accurate information.

Never fear, the right people have such knowledge

 

[AlphaWolf]

Re: r

I was hoping someone had more detailed and accurate information.

Never fear, the right people have such knowledge

WELL SHARE

 

[digitalwanderer]

Re: r

I was hoping someone had more detailed and accurate information.

Never fear, the right people have such knowledge

You need some help finding them lost shadows and lights and such? :|

 

[DemoCoder]

The technical word is "stuff". How dare you use such layman terms like "and such"

 

[dksuiko]

Re: r

WELL SHARE

Just knowing that you know that he knows what you want to know is enough for him.

 

[digitalwanderer]

The technical word is "stuff". How dare you use such layman terms like "and such"

Sorry, I'm not a professional like all the rest of you...I'm just a humble amatuer at this sort of thing.

 

[Blacklash]

Well perhaps we will all get further 'edumaction' about the shadows and 'stuff' soon Maybe Monday...

 

[reever]

Re: r

I was hoping someone had more detailed and accurate information.

Never fear, the right people have such knowledge

WELL SHARE

oh c'mon, every inside things these guys say is meant to be obvious to you

 

[rwolf]

That would be a treat if ATI came out with a new feature like that for R300 as well as R420.

 

[Kombatant]

The technical word is "stuff". How dare you use such layman terms like "and such"

Sorry, I'm not a professional like all the rest of you...I'm just a humble amatuer at this sort of thing.

No worries Dig, if you were professional you would probably end up working for the Inq

 

[Hanners]

The technical word is "stuff". How dare you use such layman terms like "and such"

I can see the marketing team now:

Radeon X800 - Fully stuff compliant!

 

[THe_KELRaTH]

and here's the ready made .3dc file format for reviewers to srutinize the screenshots.........
http://www.3dcompress.com/web/prod_view.asp

 

[991060]

and here's the ready made .3dc file format for reviewers to srutinize the screenshots.........
http://www.3dcompress.com/web/prod_view.asp

Are you sure this is the same thing ATi will be advertizing later?

 

[Kombatant]

and here's the ready made .3dc file format for reviewers to srutinize the screenshots.........
http://www.3dcompress.com/web/prod_view.asp

Are you sure this is the same thing ATi will be advertizing later?

Yup, I doubt it's the same thing.