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31 Oct 2024 21:28:05 EDT (-0400)
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From: jr
Subject: Re: No image
Date: 9 Jul 2018 06:10:00
Message: <web.5b4333c6326cb273635cc5ad0@news.povray.org>
hi,

Stephen <mca### [at] aolcom> wrote:
> ... an observation.
> Consider a sphere with a media based on a spiral density pattern rolling
> through the box with a horizontal colour gradient. The resultant image
> would be additive or subtractive.

that too sounds v interesting.  I had not thought about patterning functions at
all.  could you post an outline of the objects and the materials, to help me try
this?  thanks.


regards, jr.


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From: Stephen
Subject: Re: No image
Date: 9 Jul 2018 07:12:45
Message: <5b43432d@news.povray.org>
On 09/07/2018 11:07, jr wrote:
> hi,
> 
> Stephen <mca### [at] aolcom> wrote:
>> ... an observation.
>> Consider a sphere with a media based on a spiral density pattern rolling
>> through the box with a horizontal colour gradient. The resultant image
>> would be additive or subtractive.
> 
> that too sounds v interesting.  I had not thought about patterning functions at
> all.  could you post an outline of the objects and the materials, to help me try
> this?  thanks.
> 
> 
> regards, jr.
> 

Just a thought experiment. Like most things the mind's eye is better 
than reality. More thought needed.

-- 

Regards
     Stephen


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From: Bald Eagle
Subject: Re: No image
Date: 9 Jul 2018 13:05:00
Message: <web.5b4394bc326cb273c437ac910@news.povray.org>
OK, so as far as I understand what you want to do:

There will be static, stationary visible staves.
There will moving, visible notes.
There will be a stationary invisible object.

The visible notes will change color when they intersect the invisible object.

optional:

Portions of the staves will not be visible when a note overlaps them.


I think I can get that work - I scribbled it out during lunch.  :)


Stephen - yes, the ball does not "roll", it translates, but even if the ball
rolled, it would look the same, since as you say, it's traveling through the
pattern, rather than the pattern being attached to it.

The media method is what jr requested, and Bill P. supplied the prototype scene
code and functions for.

Presumably normal primitives could be used with transmit and filter....


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From: Stephen
Subject: Re: No image
Date: 9 Jul 2018 14:11:53
Message: <5b43a569$1@news.povray.org>
On 09/07/2018 18:00, Bald Eagle wrote:
> 
> OK, so as far as I understand what you want to do:
> 
> There will be static, stationary visible staves.
> There will moving, visible notes.
> There will be a stationary invisible object.
> 
> The visible notes will change color when they intersect the invisible object.
> 
> optional:
> 
> Portions of the staves will not be visible when a note overlaps them.
> 
> 
> I think I can get that work - I scribbled it out during lunch.  :)
> 
> 
> Stephen - yes, the ball does not "roll", it translates, but even if the ball
> rolled, it would look the same, since as you say, it's travelling through the
> pattern, rather than the pattern being attached to it.
> 
If you are calling me a pedant. Then I put my hand up with pride. :)


> The media method is what jr requested, and Bill P. supplied the prototype scene
> code and functions for.
> 

Memory is the second thing to go. (Jim Henderson's dad.)

So I have this idea in my head and I can't let it go.

> Presumably normal primitives could be used with transmit and filter....
> 

Too easy. <cough, cough> ;)

I am still mulling my idea over without consciously think of it.
Too hot here and too many shandies.

-- 

Regards
     Stephen


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From: Bald Eagle
Subject: Re: No image
Date: 10 Jul 2018 20:55:01
Message: <web.5b45550c326cb273458c7afe0@news.povray.org>
New version with sphere translating across a series of smaller spheres stretched
in the z direction.


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Attachments:
Download 'overlappingmedia.mp4.mpg' (441 KB)

From: Bald Eagle
Subject: Re: No image
Date: 10 Jul 2018 21:00:01
Message: <web.5b45556f326cb273458c7afe0@news.povray.org>
As so:


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Attachments:
Download 'movingmedia.png' (26 KB)

Preview of image 'movingmedia.png'
movingmedia.png


 

From: Stephen
Subject: Re: No image
Date: 11 Jul 2018 07:39:23
Message: <5b45ec6b$1@news.povray.org>
On 11/07/2018 01:53, Bald Eagle wrote:
> New version with sphere translating across a series of smaller spheres stretched
> in the z direction.
> 

Nice one. :D

-- 

Regards
     Stephen


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From: Bald Eagle
Subject: Re: No image
Date: 14 Jul 2018 09:35:00
Message: <web.5b49fb2d326cb273458c7afe0@news.povray.org>
Off-topic / highly tangentially related.
:)

http://mnhopkins.blogspot.com/2017/12/your-brain-on-music-how-your-favorite.html


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From: jr
Subject: Re: No image
Date: 14 Jul 2018 12:40:00
Message: <web.5b4a26d3326cb2731500b2fd0@news.povray.org>
hi,

"Bald Eagle" <cre### [at] netscapenet> wrote:
> Off-topic / highly tangentially related.
> :)

+1 for the tangents.  :-)

> http://mnhopkins.blogspot.com/2017/12/your-brain-on-music-how-your-favorite.html

"They found that when subjects listened to songs from their preferred musical
genres, they exhibited enhanced levels of brain connectivity."

one could quibble and say that, surely, this is about "activity" rather than
"connectivity", however, reading it did stimulate.  :-)

little progress so far with the 'notes' project, though begins to irritate, so
"something must be done".  ;-)  will post when I have (a little) better than the
jury-rigged present.  still not sure where/whether patterns such as the agate
you showed can be incorporated usefully, another puzzle to solve.


regards, jr.


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From: Jörg "Yadgar" Bleimann
Subject: Re: No image
Date: 13 Feb 2019 21:47:51
Message: <5c64d6d7$1@news.povray.org>
Hi(gh)!

On 27.06.18 04:04, Bald Eagle wrote:
> Hi jr - I really thought I'd get to this sooner, but this ought to get you on
> the right path.

Neat and simple... may I AtariSTize and C64ify and re-publish it on my 
YouTube channel? What about your other animation works?

No commercial intentions - I'm just fanatically obsessed with 
retrocomputing and thus also retro video!

See you in Khyberspace!

Yadgar


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