Re: HP dreamcolor screen, any opinions?
Re: HP dreamcolor screen, any opinions?
- Subject: Re: HP dreamcolor screen, any opinions?
- From: Klaus Karcher <email@hidden>
- Date: Sat, 16 Aug 2008 10:02:26 +0200
Roger Breton wrote:
In case this got bounced, here's a reply from HP's Proofing Product Manager
about the DreamColor monitor...
Andrew Page wrote:
To the 10-bit question that's come up, you do need a 10-bit enabled card and
software. The "easiest" way to implement the 10-bit path for is through 10
bit, or floating point, textures in the OpenGL path. DisplayPort is the
recommended path to get 10 bit data into the card.
AFAIK there is no graphics card with DisplayPort for the Mac yet
unfortunately.
Anyway, the card vendors claim to support 10 bits per channel already in
a more or less roundabout way (see references below). In theory it
should be possible to transmit 10 bits per channel over dual-link DVI.
Does anyone know how much we can benefit from the higher bit depth with
current hard- and software? Is it enough to have e.g. a MacB with NVIDIA
GeForce 8600M GT or ATI Radeon HD 2600 XT and HP DreamColor connected
via dual-link DVI?
References:
<http://ati.amd.com/products/radeonhd2600/specs.html>:
"Full 30-bit display processing [...]
Spatial/temporal dithering provides 30-bit color quality on 24-bit and
18-bit displays [...]
Two integrated dual-link DVI display outputs
Each supports 18-, 24-, and 30-bit digital displays"
<http://www.nvidia.com/object/geforce_8600M_techspecs.html>
"10-bit display processing"
<http://www.nvidia.com/object/IO_37100.html>:
"An entirely new 10-bit display architecture works in concert with
10-bit DACs to deliver over a billion colors"
<http://static.tigerdirect.com/pdf/NVIDIA_Lumenex-Engine_TechnicalBrief.pdf>
"the Lumenex engine is built with a full 10-bit display pipeline"
Thank you,
Klaus Karcher
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