POV-Ray : Newsgroups : povray.off-topic : The cake is a lie, but... Server Time
1 Nov 2024 13:21:05 EDT (-0400)
  The cake is a lie, but... (Message 1 to 10 of 19)  
Goto Latest 10 Messages Next 9 Messages >>>
From: clipka
Subject: The cake is a lie, but...
Date: 10 Dec 2012 09:26:31
Message: <50c5f117$1@news.povray.org>
... the Raspberry Pi is not!

I just got mine, after months of waiting...

First task: Try to communicate with it.


Post a reply to this message

From: Stephen
Subject: Re: The cake is a lie, but...
Date: 10 Dec 2012 10:37:53
Message: <50c601d1$1@news.povray.org>
On 10/12/2012 2:26 PM, clipka wrote:
> First task: Try to communicate with it.

Second task: Port Pov to it.

-- 
Regards
     Stephen


Post a reply to this message

From: Eero Ahonen
Subject: Re: The cake is a lie, but...
Date: 10 Dec 2012 11:00:55
Message: <50c60737$1@news.povray.org>
Stephen wrote:
>
> Second task: Port Pov to it.
>

I'm curiously waiting for official benchmark results.

-Aero


Post a reply to this message

From: Stephen
Subject: Re: The cake is a lie, but...
Date: 10 Dec 2012 11:44:17
Message: <50c61161$1@news.povray.org>
On 10/12/2012 4:00 PM, Eero Ahonen wrote:
> Stephen wrote:
>>
>> Second task: Port Pov to it.
>>
>
> I'm curiously waiting for official benchmark results.
>
> -Aero

Third task:   ;-)

-- 
Regards
     Stephen


Post a reply to this message

From: Warp
Subject: Re: The cake is a lie, but...
Date: 10 Dec 2012 12:38:17
Message: <50c61e09@news.povray.org>
Stephen <mca### [at] aolcom> wrote:
> Second task: Port Pov to it.

Nitpicking but...

There's a difference between "porting" a program to a platform, and
simply "compiling" it for that platform. Porting would require code
modifications, and povray probably doesn't need any for the Raspberry Pi.

-- 
                                                          - Warp


Post a reply to this message

From: clipka
Subject: Re: The cake is a lie, but...
Date: 10 Dec 2012 13:28:07
Message: <50c629b7$1@news.povray.org>
Am 10.12.2012 16:37, schrieb Stephen:
> On 10/12/2012 2:26 PM, clipka wrote:
>> First task: Try to communicate with it.
>
> Second task: Port Pov to it.

Exactly.


Post a reply to this message

From: clipka
Subject: Re: The cake is a lie, but...
Date: 10 Dec 2012 13:34:08
Message: <50c62b20$1@news.povray.org>
Am 10.12.2012 18:38, schrieb Warp:
> Stephen <mca### [at] aolcom> wrote:
>> Second task: Port Pov to it.
>
> Nitpicking but...
>
> There's a difference between "porting" a program to a platform, and
> simply "compiling" it for that platform. Porting would require code
> modifications, and povray probably doesn't need any for the Raspberry Pi.

Someone already tried the compiling part some months ago, only to find 
that although it did compile and even run, the results weren't 
satisfactory (as in, the output included artifacts that shouldn't have 
been there).

That's when I decided to order one myself.

So yes, it /is/ "porting" this time.


Post a reply to this message

From: Warp
Subject: Re: The cake is a lie, but...
Date: 10 Dec 2012 14:01:36
Message: <50c63190@news.povray.org>
clipka <ano### [at] anonymousorg> wrote:
> Someone already tried the compiling part some months ago, only to find 
> that although it did compile and even run, the results weren't 
> satisfactory (as in, the output included artifacts that shouldn't have 
> been there).

> That's when I decided to order one myself.

> So yes, it /is/ "porting" this time.

Sounds more like bug-fixing rather than porting, unless it really is
something that has to be modified because the platform, for some strange
reason, works differently from all other platforms. Which would sound
really strange given that it runs Linux and BSD...

-- 
                                                          - Warp


Post a reply to this message

From: Orchid Win7 v1
Subject: Re: The cake is a lie, but...
Date: 10 Dec 2012 15:24:32
Message: <50c64500$1@news.povray.org>
On 10/12/2012 07:01 PM, Warp wrote:
> clipka<ano### [at] anonymousorg>  wrote:
>> Someone already tried the compiling part some months ago, only to find
>> that although it did compile and even run, the results weren't
>> satisfactory (as in, the output included artifacts that shouldn't have
>> been there).
>
>> That's when I decided to order one myself.
>
>> So yes, it /is/ "porting" this time.
>
> Sounds more like bug-fixing rather than porting, unless it really is
> something that has to be modified because the platform, for some strange
> reason, works differently from all other platforms. Which would sound
> really strange given that it runs Linux and BSD...

It probably doesn't implement IEEE-754 arithmetic correctly or something 
daft like that.


Post a reply to this message

From: clipka
Subject: Re: The cake is a lie, but...
Date: 10 Dec 2012 18:26:55
Message: <50c66fbf$1@news.povray.org>
Am 10.12.2012 20:01, schrieb Warp:
> clipka <ano### [at] anonymousorg> wrote:
>> Someone already tried the compiling part some months ago, only to find
>> that although it did compile and even run, the results weren't
>> satisfactory (as in, the output included artifacts that shouldn't have
>> been there).
>
>> That's when I decided to order one myself.
>
>> So yes, it /is/ "porting" this time.
>
> Sounds more like bug-fixing rather than porting, unless it really is
> something that has to be modified because the platform, for some strange
> reason, works differently from all other platforms. Which would sound
> really strange given that it runs Linux and BSD...

Not so strange if you recall that the porting work for Linux (and 
probably also BSD) to run on ARM platforms had been done already.

One possible difference might be the floating point math, which doesn't 
seem to be as straightforward as we're used to on x86 machines. I guess 
there is /some/ reason why the official reference Linux distro for the 
Pi is built to use software-emulated floating point math, rather than 
the on-chip floating point hardware.


Even if it turns out that there's nothing else to do, there's still 
porting work to be done in the sense of checking whether the 
platform-specific header files make sense for the ARM.


Post a reply to this message

Goto Latest 10 Messages Next 9 Messages >>>

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.