POV-Ray : Newsgroups : povray.advanced-users : Reorient_Trans macro details Server Time
14 Apr 2024 03:17:03 EDT (-0400)
  Reorient_Trans macro details (Message 11 to 16 of 16)  
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From: kurtz le pirate
Subject: Re: Reorient_Trans macro details
Date: 12 Feb 2024 11:03:52
Message: <65ca4168$1@news.povray.org>
On 08/02/2024 21:43, Tor Olav Kristensen wrote:
> And for axis rotate, this is relevant:
> 
> https://github.com/t-o-k/Rodrigues-rotation-formula


Exactly, that's right and don't forget : vaxis_rotate() bult in ;)



-- 
Kurtz le pirate
Compagnie de la Banquise


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From: kurtz le pirate
Subject: Re: Reorient_Trans macro details
Date: 16 Feb 2024 11:54:47
Message: <65cf9357$1@news.povray.org>
On 09/02/2024 08:20, Thomas de Groot wrote:

> Before I go further in reading: This is a very welcome exercise you have 
> started here, Bill! I am a very regular user of the macro and I confess 
> that I have had a lot of misunderstandings about its working in the past.

bonjour,


Following your comment, I made this page about rotations in 3d space.
Could this kind of literature be useful for POV user or no one is
interested or even be annoying ?


<http://louisbel.free.fr/scenes/scene036.shtml>
It's on my website and in English ;)






-- 
Kurtz le pirate
Compagnie de la Banquise


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From: Bald Eagle
Subject: Re: Reorient_Trans macro details
Date: 16 Feb 2024 17:05:00
Message: <web.65cfdbd47ecd0aa1f9dae3025979125@news.povray.org>
kurtz le pirate <kur### [at] gmailcom> wrote:

> Following your comment, I made this page about rotations in 3d space.

> <http://louisbel.free.fr/scenes/scene036.shtml>

The animations "played", but were just black - no images.

- BW


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From: Thomas de Groot
Subject: Re: Reorient_Trans macro details
Date: 17 Feb 2024 02:29:27
Message: <65d06057$1@news.povray.org>
Op 16/02/2024 om 17:54 schreef kurtz le pirate:
> On 09/02/2024 08:20, Thomas de Groot wrote:
> 
>> Before I go further in reading: This is a very welcome exercise you have
>> started here, Bill! I am a very regular user of the macro and I confess
>> that I have had a lot of misunderstandings about its working in the past.
> 
> bonjour,
> 
> 
> Following your comment, I made this page about rotations in 3d space.
> Could this kind of literature be useful for POV user or no one is
> interested or even be annoying ?
> 
> 
> <http://louisbel.free.fr/scenes/scene036.shtml>
> It's on my website and in English ;)
> 

Note: Contrary To Bald Eagle, the animations played correctly on my 
system (Win11) not black.

I think these kind of simple and clear visual explanations can be very 
useful, certainly for starting (POV-Ray) modellers, but also for old 
hands who have temporarily lost their way in confusion and need a little 
reminder. :-) I am certainly one of those from time to time.

I would suggest that you label the x-, y-, z-axis in the first 
animation, and/or add the usual red, green, and blue colours to them.

Well done and keep on!

-- 
Thomas


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From: kurtz le pirate
Subject: Re: Reorient_Trans macro details
Date: 17 Feb 2024 05:50:21
Message: <65d08f6d$1@news.povray.org>
On 16/02/2024 23:04, Bald Eagle wrote:
> The animations "played", but were just black - no images.

Sorry for the inconvenience. I've tested with Fitrefox, Chrome and
Safari on Mac and Edge on Windows and it works fine.

I changed the video format from .mov to .mp4
Can you tell me if it's better?



-- 
Kurtz le pirate
Compagnie de la Banquise


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From: Bald Eagle
Subject: Re: Reorient_Trans macro details
Date: 17 Feb 2024 09:10:00
Message: <web.65d0bd817ecd0aa1f9dae3025979125@news.povray.org>
kurtz le pirate <kur### [at] gmailcom> wrote:

> I changed the video format from .mov to .mp4
> Can you tell me if it's better?


Very Nice.  Works perfectly and the colors and lighting are beautiful.

Well done.

- BW


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