3dc Works on NV4x hardware!

Imagin that! All this boastin ATI has done and now look at what hapend! :p

Heres how to do it...

1) Load up regedit and do a search for D3D_54082152

2)Delete it.

3)Restart

Edit: It seems new drivers dont have that key! So now you dont have to delet it!

And now run 3dc on the Humus Demo , And ATIS newest demo from crytek. It would seem the memory impact is similar to a V8U8 texture solution so it would still benefit the Nv4x hardware but wont compress as well as ATIS method. I managed to get this working on Humus's demo, The Project, and apparently Far Cry 1.3 supports it as well.

Edit: looks like humus compressed the dxt5 wrong, copy this over his file in the demo and you get the same quality from dxt5 as 3dc. In other words, the banding was caused by faulty compression not dxt5... http://www.skenegroup.net/tertsi/tem...r2BumpDXT5.dds

http://www.beyond3d.com/forum/viewtopic.php?t=18749

This is a quote from another web site which ran a custome benchy...

Uncompressed
Compressed Basemaps - False
Compressed Bumpmaps - False
3DC Enabled - False
Speed - 49fps

Compressed Basemaps only
Compressed Basemaps - True
Compressed Bumpmaps - False
3DC Enabled - False
Speed - 51fps

Compressed Basemaps & Bumpmaps
Compressed Basemaps - True
Compressed Bumpmaps - True
3DC Enabled - False
Speed - 52fps

Compressed Basemaps & Bumpmaps w/ 3DC
Compressed Basemaps - True
Compressed Bumpmaps - True
3DC Enabled - True
Speed - 56fps

Sorry for being a ninny but what is 3DC and how does it affect me? :P
Ta

Quote:

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Originally Posted by bertie

Sorry for being a ninny but what is 3DC and how does it affect me? :P
Ta

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rofl... its a type of texture compression, originaly only ATI vidy cards had suported it, this gave them a advantage but now Nvidias cards suport it as well via drivers... It makes your games run faster when suported...

Quote:

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Originally Posted by ATI

3Dc is an exciting new compression technology designed to bring out fine details in games while minimizing memory usage. It is the first compression technique optimized to work with normal maps, which allow fine per-pixel control over how light reflects from a textured surface. With up to 4:1 compression possible, this means game designers can now include up to 4x the detail without changing the amount of graphics memory required and without impacting performance.

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Quote:

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Originally Posted by bertie

Sorry for being a ninny but what is 3DC and how does it affect me? :P
Ta

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3Dc is an ATI developed format to compress normal maps. The main benefit of doing so is faster performance, but this can in turn allow for higher quality normal maps to be used.

As for how it affects you, thus far, aside from a few ATI demos (Ruby, The Project), only Far Cry makes use of 3Dc, and only then as an optional feature that needs to be turned on at the start of each level. So, in other words, it doesn't really... Yet.