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From: William F Pokorny
Subject: Playing with isosurface mazes.
Date: 27 May 2019 21:46:34
Message: <5cec5aba@news.povray.org>
One of a set of isosurface maze experiments I liked. Orthographic camera 
view on left; perspective camera on right.

Bill P.


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Attachments:
Download 'mazeplay.png' (394 KB)

Preview of image 'mazeplay.png'
mazeplay.png


 

From: Bald Eagle
Subject: Re: Playing with isosurface mazes.
Date: 27 May 2019 22:00:00
Message: <web.5cec5db61903fa584eec112d0@news.povray.org>
William F Pokorny <ano### [at] anonymousorg> wrote:
> One of a set of isosurface maze experiments I liked. Orthographic camera
> view on left; perspective camera on right.
>
> Bill P.

Well damn.
That's very cool  :)

I will have to ponder how you did that.....


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From: Thomas de Groot
Subject: Re: Playing with isosurface mazes.
Date: 28 May 2019 06:35:51
Message: <5cecd6c7$1@news.povray.org>
On 27-5-2019 23:46, William F Pokorny wrote:
> One of a set of isosurface maze experiments I liked. Orthographic camera 
> view on left; perspective camera on right.
> 
> Bill P.
> 
> 

Fascinating. I am not sure how this maze can be solved though: hidden 
doorways at the centre?

-- 
Thomas


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From: Paolo Gibellini
Subject: Re: Playing with isosurface mazes.
Date: 29 May 2019 06:31:53
Message: <5cee2759$1@news.povray.org>
Thomas de Groot wrote on 28/05/2019 08:35:
> On 27-5-2019 23:46, William F Pokorny wrote:
>> One of a set of isosurface maze experiments I liked. Orthographic 
>> camera view on left; perspective camera on right.
>>
>> Bill P.
>>
>>
> 
> Fascinating. I am not sure how this maze can be solved though: hidden 
> doorways at the centre?
> 

Maybe teletransport?

Paolo


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From: Mike Horvath
Subject: Re: Playing with isosurface mazes.
Date: 29 May 2019 07:19:36
Message: <5cee3288$1@news.povray.org>
On 5/27/2019 5:46 PM, William F Pokorny wrote:
> One of a set of isosurface maze experiments I liked. Orthographic camera 
> view on left; perspective camera on right.
> 
> Bill P.
> 
> 

I was JUST thinking earlier today that some of the swiss-cheese-like 
noise surfaces in the docs might make neat 3D mazes.


Mike


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From: William F Pokorny
Subject: Re: Playing with isosurface mazes.
Date: 29 May 2019 13:22:58
Message: <5cee87b2$1@news.povray.org>
On 5/29/19 2:31 AM, Paolo Gibellini wrote:
> Thomas de Groot wrote on 28/05/2019 08:35:
...
>>
>> Fascinating. I am not sure how this maze can be solved though: hidden 
>> doorways at the centre?
> 
> Maybe teletransport?
> 
> Paolo
> 

Paolo, No teleport - though a black hole is being used to distort space!

Thomas, Suppose you could say there are hidden paths where the upper 
parts of the walls fly overhead toward the black hole's center. True, 
one might need to be skinny and limber to get through. :-) Attaching a 
couple images.

My maze play turned up two issues. One marked with the '?s'. It looks 
like the isosurface is getting pulled apart (shadows? normals?). No luck 
thus far running the cause down. Only that one place and with smallish 
changes it goes away.

I employed the new +am3 to reduce moiré patterns with the red/black 
stripes. Worked well until I changed the floor color from red to tan and 
the run time jumped 100x or more at hard shadow boundaries.

Thomas, I know you've been an early adopter of +am3. If you happen to 
come across similar +am3 changed behavior due color, I'd be interested. 
It's on my list to reproduce part of the maze with boxes and identical 
colors. Might be I'm seeing some strange interplay of +am3 and 
isosurface shadow rays - but why would a simple color change matter...

Bill P.


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Attachments:
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Preview of image 'mazeplay01.png'
mazeplay01.png


 

From: William F Pokorny
Subject: Re: Playing with isosurface mazes.
Date: 29 May 2019 13:28:12
Message: <5cee88ec$1@news.povray.org>
On 5/29/19 3:19 AM, Mike Horvath wrote:
> On 5/27/2019 5:46 PM, William F Pokorny wrote:
...
> 
> I was JUST thinking earlier today that some of the swiss-cheese-like 
> noise surfaces in the docs might make neat 3D mazes.
> 
> Mike

:-) Feel free to join in the fun!

I've looked a little at 3d mazes with plain shapes. I always struggle 
with how the 3d maze is hard to 'see' without some sort of animated / 
multi-image presentation.

Bill P.


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From: Mike Horvath
Subject: Re: Playing with isosurface mazes.
Date: 30 May 2019 05:08:15
Message: <5cef653f$1@news.povray.org>
On 5/29/2019 9:22 AM, William F Pokorny wrote:
> On 5/29/19 2:31 AM, Paolo Gibellini wrote:
>> Thomas de Groot wrote on 28/05/2019 08:35:
> ...
>>>
>>> Fascinating. I am not sure how this maze can be solved though: hidden 
>>> doorways at the centre?
>>
>> Maybe teletransport?
>>
>> Paolo
>>
> 
> Paolo, No teleport - though a black hole is being used to distort space!
> 
> Thomas, Suppose you could say there are hidden paths where the upper 
> parts of the walls fly overhead toward the black hole's center. True, 
> one might need to be skinny and limber to get through. :-) Attaching a 
> couple images.
> 
> My maze play turned up two issues. One marked with the '?s'. It looks 
> like the isosurface is getting pulled apart (shadows? normals?). No luck 
> thus far running the cause down. Only that one place and with smallish 
> changes it goes away.
> 
> I employed the new +am3 to reduce moiré patterns with the red/black 
> stripes. Worked well until I changed the floor color from red to tan and 
> the run time jumped 100x or more at hard shadow boundaries.
> 
> Thomas, I know you've been an early adopter of +am3. If you happen to 
> come across similar +am3 changed behavior due color, I'd be interested. 
> It's on my list to reproduce part of the maze with boxes and identical 
> colors. Might be I'm seeing some strange interplay of +am3 and 
> isosurface shadow rays - but why would a simple color change matter...
> 
> Bill P.

Hedge mazes are common in movies such as Harry Potter. But I've never 
seen a vertical maze like the one you created! LOL, you would need to be 
in very good physical shape to traverse it.


Michael


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From: Thomas de Groot
Subject: Re: Playing with isosurface mazes.
Date: 30 May 2019 07:12:33
Message: <5cef8261$1@news.povray.org>
On 29-5-2019 15:22, William F Pokorny wrote:
> On 5/29/19 2:31 AM, Paolo Gibellini wrote:
>> Thomas de Groot wrote on 28/05/2019 08:35:
> ...
>>>
>>> Fascinating. I am not sure how this maze can be solved though: hidden 
>>> doorways at the centre?
>>
>> Maybe teletransport?
>>
>> Paolo
>>
> 
> Paolo, No teleport - though a black hole is being used to distort space!
> 
> Thomas, Suppose you could say there are hidden paths where the upper 
> parts of the walls fly overhead toward the black hole's center. True, 
> one might need to be skinny and limber to get through. :-) Attaching a 
> couple images.
> 
> My maze play turned up two issues. One marked with the '?s'. It looks 
> like the isosurface is getting pulled apart (shadows? normals?). No luck 
> thus far running the cause down. Only that one place and with smallish 
> changes it goes away.

It would help if the shadows were lighter. It is difficult to see what 
happens in the pitch black dark :-) Aside: seen the movie "What we do in 
the shadows"?

> 
> I employed the new +am3 to reduce moiré patterns with the red/black 
> stripes. Worked well until I changed the floor color from red to tan and 
> the run time jumped 100x or more at hard shadow boundaries.
> 
> Thomas, I know you've been an early adopter of +am3. If you happen to 
> come across similar +am3 changed behavior due color, I'd be interested. 
> It's on my list to reproduce part of the maze with boxes and identical 
> colors. Might be I'm seeing some strange interplay of +am3 and 
> isosurface shadow rays - but why would a simple color change matter...
> 

I do not remember to have come across such an issue but I shall keep my 
eyes open.

-- 
Thomas


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From: William F Pokorny
Subject: Re: Playing with isosurface mazes.
Date: 30 May 2019 08:50:46
Message: <5cef9966$1@news.povray.org>
On 5/30/19 3:12 AM, Thomas de Groot wrote:
> On 29-5-2019 15:22, William F Pokorny wrote:
...
>> Thomas, Suppose you could say there are hidden paths where the upper 
>> parts of the walls fly overhead toward the black hole's center. True, 
>> one might need to be skinny and limber to get through. :-) Attaching a 
>> couple images.
...
> 
> It would help if the shadows were lighter. It is difficult to see what 
> happens in the pitch black dark :-) Aside: seen the movie "What we do in 
> the shadows"?
> 

Yes I agree. Partly I'm just testing techniques/ideas - but while at it 
I was also thinking of ways to make smaller mazes harder to solve. The 
green bar on the walls of the isosuface-hedge like variant was there due 
use in another variant where it's purpose was to throw the eye - or cell 
phone maze solving apps... I thought too about dual mazes where one the 
actual 3d walls and another in the maze coloring/texturing, but not yet 
tried it. Anyway...

Yes! I have seen the movie "What we do in the shadows." :-)

>>
...
>>
> 
> I do not remember to have come across such an issue but I shall keep my 
> eyes open.
> 
Thanks.


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