Re: [Plib-devel] Ancient history....depth buffer queries

[Steve B. <sjb...@ai...>]

Scott McMillan wrote:
> 
> All:
> 
> Just a followup on the discussion below.  I have been able to
> test this under NT for a few more OpenGL boards out there.
> This seems to be a more pervasive error than I would have
> guessed (SGI given for reference):
> 
> board                     glGetIntegerv(GL_DEPTH_RANGE,...);
> --------------------      --------------------------------------
> SGI O2 IRIX 6.5.7         0,2147482496
> SGI iR IRIX 6.5.5         0,2147483647  (MAX_INT)
> 
> nVidia TNT2               0,2147482496
> HP - FX6+                 0,2147483647  (MAX_INT)
> AccelGalaxy(NT)           0,1           (incorrect)
> Intergraph Wildcat 4000   0,1           (incorrect)
> Diamond FireGL            0,1           (incorrect)

Yikes!

Well, it's kinda comforting that the 'big name' companies
like SGI, nVidia and HP are getting it right.

So, You should certainly report this to the offenders
(that's the only way things get better) - and switch
to the glGetFloatv version.

-- 
Steve Baker                  http://web2.airmail.net/sjbaker1
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