On 18 Apr 2004 13:54:41 -0400, Rich <SrP### [at] ricoswebcom> wrote:
> I have a Universal subscription to MSDN though work.  Can you tell me where 
> the compiler is on subscriber downloads?  Thanks!

I have VC7 with both 32 and 64bit compilers. All I did was following links of
http://www.winprog.org/tutorial/msvc.html It is possible that the same is
available under http://msdn.microsoft.com/visualc/vctoolkit2003/

ABX

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In article <me2780hceannd98umputv7ivjh96msv6m2@4ax.com> , ABX 
<abx### [at] abxartpl>  wrote:

>> No, the compiler is available.  You just need to have the usual MSDN
>> subscription to get early access easily.  Not even sure if you need to sign
>> an NDA for it currently.
>
> No, You can download it from MS site for free without any subscription.
> I have command line environemnt of 64bit VC 7.0 installed since half a year.

Didn't know that!  At work we have someone who takes care of all this and
put software on the internal network or even burns it on DVDs.  That way not
every employee has to find his/her way around on the M$ website :-)

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org

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John VanSickle <evi### [at] hotmailcom> wrote:
> Now a processor that does 3d arithmetic directly would be very nice...

  Don't 3D accelerator cards do tons of that already?

-- 
plane{-x+y,-1pigment{bozo color_map{[0rgb x][1rgb x+y]}turbulence 1}}
sphere{0,2pigment{rgbt 1}interior{media{emission 1density{spherical
density_map{[0rgb 0][.5rgb<1,.5>][1rgb 1]}turbulence.9}}}scale
<1,1,3>hollow}text{ttf"timrom""Warp".1,0translate<-1,-.1,2>}//  - Warp -

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In article <4083cb0b@news.povray.org> , Warp <war### [at] tagpovrayorg>  wrote:

>> Now a processor that does 3d arithmetic directly would be very nice...
>
>   Don't 3D accelerator cards do tons of that already?

But what use is single-precision floating-point math for ray-tracing ;-)

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org

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ABX <abx### [at] abxartpl> wrote in news:qp27805463p54p28qbpsanb9v7jcjbmi6s@
4ax.com:

> http://www.winprog.org/tutorial/msvc.html

Thanks, I'll check it out.

Rich

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Warp wrote:
> 
> John VanSickle <evi### [at] hotmailcom> wrote:
> > Now a processor that does 3d arithmetic directly would be very
> > nice...
> 
>   Don't 3D accelerator cards do tons of that already?

Their job is to puke triangles onto the screen.  I want something a
ray-tracer can use.

Regards,
John

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John VanSickle <evi### [at] hotmailcom> wrote:
> Their job is to puke triangles onto the screen.  I want something a
> ray-tracer can use.

  They do much more than that. They have even their own mini-assembler
you can use to write shaders.

-- 
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}//  - Warp -

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"Warp" <war### [at] tagpovrayorg> wrote in message news:4084717c@news.povray.org...
> John VanSickle <evi### [at] hotmailcom> wrote:
> > Their job is to puke triangles onto the screen.  I want something a
> > ray-tracer can use.
>
>   They do much more than that. They have even their own mini-assembler
> you can use to write shaders.

While it's not really relevent to this conversation the following may be of
interest:

  http://film.nvidia.com/page/gelato.html

-- Chris

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Christoph Hormann schrieb:
> Rich wrote:
> 
>> Has anyone tried to compile 3.5 with 64bit optimizations?  I have a 
>> new PC with an AMD64 3200+ cpu (running Windows XP64) and I'm dying to 
>> see what this thing can do in native 64bit mode.

> In general POV-Ray compiles on 64bit systems but it won't be faster (in 
> most cases even slower).  The main advantage would be to be able to 
> address more than 4GB of memory.

I couldn't believe this and did some testing with my own compilations of 
POVRay.

I compile POVRay on my new AMD64 Box running Suse 9.0 for AMD64. One 
time with -m32 (using 32Bit mode of the processor) and one with -m64 
(using 64Bit mode of the processor)

I have tested the different binarys with this

povray -d -q9 +w800 +h600 +b1000 +r3 +a0.300 +ft 
-i[povray-dir]/scenes/advanced/chess2.pov -L[povray-dir]/include

commandline. I used always the -msse2 option to enable the sse2 Unit in 
the processor. So here are the results:

GCC 3.3.1 with -m32 -mcpu=k8 -msse2
   3:26
GCC 3.3.1 with -m64 -mcpu=k8 -msse2
   2:59

GCC 3.4.0 with -m32 -mcpu=k8 -msse2
   3:08
GCC 3.4.0 with -m64 -mcpu=k8 -msse2
   2:47

I will also try to compile POVRay with the ICC 8.0 under Linux if I can 
bring the compiler to work.

-- 

mat### [at] matweide
http://www.matwei.de

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> [...]
> 
> GCC 3.3.1 with -m32 -mcpu=k8 -msse2
>   3:26
> GCC 3.3.1 with -m64 -mcpu=k8 -msse2
>   2:59
> 
> GCC 3.4.0 with -m32 -mcpu=k8 -msse2
>   3:08
> GCC 3.4.0 with -m64 -mcpu=k8 -msse2
>   2:47

That either confirms what Warp said, that the processor is less 
efficient for 32bit code by design, or - if these times are indeed 
accurate enough - that gcc AMD64 specific optimizations were subject to 
significant changes recently.  Also note that you should use -march=k8 

and not only -mcpu (which should be replaced by -mtune with gcc 3.4 anywa
y).

And you should better use the benchmark scene to test, it will give more 

accurate time comparisons.  Also it would be important to test with a 
somewhat larger scene (benchmark.pov is not very large either) how the 
effect of the higher memory requirements for 64bit pointers etc. 
influences performance.

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 21 Mar. 2004 _____./\/^>_*_<^\/\.______

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