NV40 supports 3Dc

[ChrisRay]

Click.

Thats not the irony I was thinking of. It seemed to me like you were implying one is more important than the other.

 

[Ruined]

sort of off subject, but wow, isn't this interesting, saw this on nvnews

http://www.skenegroup.net/tertsi/temp/parqfloor2BumpDXT5.dds

if you copy this over the file in the humus demo, dxt5 runs with the same IQ as 3DC (no artifacts). So apparently in the humus demo at least, you could get the same image quality from dxt5 compared to 3dc. Apparently humus messed up the dxt5 compression.

 

[digitalwanderer]

Ironic that 3Dc (in some form or another) should see multi-vendor support before DST+PCF!

And you think this a good Irony?

Yes, it's got me chortling quietly!

 

[ChrisRay]

Ironic that 3Dc (in some form or another) should see multi-vendor support before DST+PCF!

And you think this a good Irony?

Yes, it's got me chortling quietly!

That does not surprise me.

 

[KimB]

oh it was like over a year ago that HE said that
this has been going on over a year.

dammit, that sucks. so there are NO women on this board? pffft that sucks.

I still find this whole thing f'in hilarious. There's no way I ever said that, ever. But I still find the image very funny of this happening in the real world. I mean, I'm 6'4" with thinning hair and I don't shave religiously. I just found the thought of somebody claiming I was female was just utterly hilarious in relation to the real world. Not only that, but my name, which I swear I didn't select from here, but happens to be a character from star trek:
http://www.angelfire.com/nh/AvalonScience/images/Chalnoth.jpg
From:
http://www.angelfire.com/nh/AvalonScience/XenologicalListings01.html (google search)

 

[digitalwanderer]

I'm 6'4" with thinning hair and I don't shave religiously.

We never said you were a good looking chic Chal!

(Sorry, sorry...I'm having waaaay too much fun with this one. )

 

[Reverend]

Are we going to stop with the Chalnoth-is/isn't-a-girl discussion?

 

[SomeBody Else]

Far Cry 1.3 detects 3Dc the same way The Project demo does
From description of Far Cry console cmds:
"Toggles support for normal-maps compression. 3Dc for ATI and V8U8 for NVidia".
So, I think, if NV card is detected, Far Cry 1.3 will use V8U8 anyway.

 

[OpenGL guy]

that defeats one of the main purposes of 3Dc?

if the purpose of 3dc was to be only available on ATI then yes that defeats it

Perhaps you are confused with nvidia's use of OpenGL in their demos

 

[Richteralan]

that defeats one of the main purposes of 3Dc?

if the purpose of 3dc was to be only available on ATI then yes that defeats it

Perhaps you are confused with nvidia's use of OpenGL in their demos

so you mean nvidia's use of opengl is their main purpose??

 

[Martin Eddy]

Ironic that 3Dc (in some form or another) should see multi-vendor support before DST+PCF!

I wonder what Futuremark think about it?

 

[LeGreg]

so you mean nvidia's use of opengl is their main purpose??

Ati should have opengl too

 

[radar1200gs]

I suspect that 512MB cards will be in the high end minority for a fair while as well!

Memory sizes tend to filter down to low-end parts more quickly than anything else in the high-end space, since there's still this perception that the amount of memory a video card has is the primary determination of performance.

Oh man, wasn't there a 256MB 5200 or something silly like that?

http://www.google.com.au/search?num=100&hl=en&safe=off&q=radeon+9000+256mb&meta=
Something as silly as a Radeon 9000 256mb digi?

 

[ChrisRay]

I really dont see your point radar. I dont think digi was taking a jab at Nvidia. Just low end cards with 256 megs onboard.

 

[Dave Baumann]

And the other point being that with "HyperMemory" / "TurboCache" they'll be more low end board with miniscule quantities of on-board memory, with the major texture cahce being in system RAM. Compression, for performance purposes, will be very useful in these situations.

 

[radar1200gs]

I never said he was. And I never defended the 256mb 5200 either. Just pointing out nVidia isn't the only IHV to offer low end 256mb products.

a 256mb 5200 and 256mb 9000 are equally ridiculous IMO.

But I'll bet anything you like that if the original post had mentioned a 256mb 9000 instead of a 5200 digi wouldn't have said a word.

 

[DOGMA1138]

dose ATi or nVIDIA even have some thing to do with those cards?
some IHV wanted to make their card more appealing by shoving alot of cheap ram into them. so what dose it have to do with either ATi or nVIDIA. you can shove 256mb into a voodoo2 based card can`t you?

 

[mczak]

dose ATi or nVIDIA even have some thing to do with those cards?
some IHV wanted to make their card more appealing by shoving alot of cheap ram into them. so what dose it have to do with either ATi or nVIDIA. you can shove 256mb into a voodoo2 based card can`t you?

I'm pretty sure you can't. The memory controller needs to be able to address so much memory (basically needs enough address lines). ATI/Nvidia certainly could restrict this, but it would be a "artificial" limitation. It certainly makes sense for the chip to be able to address anything you might throw at it during it's lifetime...

mczak

 

[Xmas]

It works just like 3Dc, so developers don't need to treat R420 and NV40 differently. And it still only takes half the space of uncompressed 3(4)-channel normal maps.

Any developer who doesn't know how to use U8V8 (16bit, supported on all DX9 hardware) for uncompressed format won't be qualified to use 3Dc anyway.
I believe this feature is done primary so nVidia cards run ATi techdemos (so their cards doesn't look bad for the users).

R420 and NV40 should still be treated differently if you want the texture to occupy the same amount of memory (video memory usage being the topmost concern).

This trick actually makes right feature detection harder - just like when we had to add special cases for GF4MX (it said it can do VS) - or GF2 cards (they said the can do non-pow2 textures)

Developers have been using uncompressed 32bit textures as normal maps for a while. And they can't use 2-channel formats only, as long as there is sub-PS2.0 hardware. I think NVidia wants to avoid a situation where a developer only uses 3Dc in addition to uncompressed normal maps, or where there is a "fallback" to DXT5, because on NVidia hardware V8U8 is usually faster than using only G and A components of DXT5 compression, despite the bandwidth/memory disadvantage.

 

[digitalwanderer]

But I'll bet anything you like that if the original post had mentioned a 256mb 9000 instead of a 5200 digi wouldn't have said a word.

Considering I'm the one who mentioned the 256Mb 5200 in the first place, I have NO CLUE what in the heck you are going on about! :?