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Bryce F.A.Q (Last Updated: 2025 Jan 04 3:16 am)

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Subject: illusion of many?


erosiaart ( ) posted Wed, 20 October 2010 at 5:23 AM · edited Fri, 10 January 2025 at 4:24 PM

 remember that trick of using a couple mirrors to get an illusion of many? like if you needed way tons of soldiers  in rows and columns.. you'd use the mirrors to create an illusion of infinity rows and colums.

I remember someone doing something here and talking of it..but I can't find the post. (but found a huge amt of really old  fun posts to go thru..talk of optical illusions! )

Any idea how to do that mirror thing? And plz..no maths.. 2+2=5 to me.. 

cheers.. 
optically confused me.. 
rosie


pakled ( ) posted Wed, 20 October 2010 at 9:48 AM

well, IRL, you put a mirror faces a mirror, subject between 'em and lighting to suit?

I wish I'd said that.. The Staircase Wit

anahl nathrak uth vas betude doth yel dyenvey..;)


erosiaart ( ) posted Wed, 20 October 2010 at 10:05 AM

 i sort of tried putting two mirrors at 90 degrees.. and putting the bryce ball inbetween.. got just a single reflection on each..maybe the angle could be a bit closer? 
if i put them facing each other.. i'd have a space inbetween.. though...hmm.. will try it in 15 mins.. 


erosiaart ( ) posted Wed, 20 October 2010 at 10:20 AM

 nopes..sadly..not working..  :-(  


drawbridgep ( ) posted Wed, 20 October 2010 at 10:23 AM

 Do you think it's something to do with your ray depth?  I thought the default was 6.  But maybe it's set to 1 or 2?

Also with 2 mirrors at 90 degrees you will only get 2 main reflections and a reflection of the reflection

---------
Phillip Drawbridge
Website 
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drawbridgep ( ) posted Wed, 20 October 2010 at 10:28 AM · edited Wed, 20 October 2010 at 10:29 AM

file_460567.jpg

 Here's ray depth set to 2

---------
Phillip Drawbridge
Website 
Facebook


drawbridgep ( ) posted Wed, 20 October 2010 at 10:29 AM

file_460568.jpg

 And set to 12

---------
Phillip Drawbridge
Website 
Facebook


drawbridgep ( ) posted Wed, 20 October 2010 at 10:35 AM

Attached Link: http://www.renderosity.com/mod/gallery/index.php?image_id=845706&user_id=147557&np&np

 Back in 2004 you left the first comment on this picture  :-)

---------
Phillip Drawbridge
Website 
Facebook


erosiaart ( ) posted Wed, 20 October 2010 at 10:46 AM

ha..the black mirror..thank you! and the ray depth! Bless ya.. 
and lol..it is funny that i was the first one to remark on your image! I was amazed at it..


erosiaart ( ) posted Wed, 20 October 2010 at 11:09 AM

 ok.. can i now be a pest and a silly and ignorant kid?  
black mirror??/ 
(and i feel so stupid asking this..) 


drawbridgep ( ) posted Wed, 20 October 2010 at 11:42 AM

 If your ray depth is set to 2 then you will see a reflection but the reflection of the reflection will be black.

If you set it to 4 then you double the number of reflections before the reflection is black.   The higher the number the more reflections are reflected before the reflection goes black but the slower the render will be.

See in my examples the black square?  That is a mirror that just doesn't have a reflection.

---------
Phillip Drawbridge
Website 
Facebook


TheBryster ( ) posted Wed, 20 October 2010 at 2:25 PM · edited Wed, 20 October 2010 at 2:26 PM
Forum Moderator

Phil? Somethings wrong with your reflections. Surely the shadow of the spheres on the ground should be on the same side?

Available on Amazon for the Kindle E-Reader

All the Woes of a World by Jonathan Icknield aka The Bryster


And in my final hours - I would cling rather to the tattooed hand of kindness - than the unblemished hand of hate...


drawbridgep ( ) posted Wed, 20 October 2010 at 2:49 PM

 Any errors are probably down to Bryce.  Guess I'll go back to Carrara.  ;-p

Actually, the shadow to the left of the spheres is actually the shadow of the mirror.  

---------
Phillip Drawbridge
Website 
Facebook


TheBryster ( ) posted Wed, 20 October 2010 at 3:38 PM · edited Wed, 20 October 2010 at 3:39 PM
Forum Moderator

Ah! Mystery solved. You can get back to your heretical app now, ya bum!

Available on Amazon for the Kindle E-Reader

All the Woes of a World by Jonathan Icknield aka The Bryster


And in my final hours - I would cling rather to the tattooed hand of kindness - than the unblemished hand of hate...


erosiaart ( ) posted Thu, 21 October 2010 at 4:02 AM

noooooooooooo....

 sigh..nopes..not 'appening.. 
ok..
step one.. create a mirror...ie.. plane.. mirror mat
step two.. place a spere infront of the mirror
step three..render..with a ray of 12..i tried 16, i tried 18. are there render options I'm missing here? 

has my brain turned into mush???


drawbridgep ( ) posted Thu, 21 October 2010 at 7:25 AM · edited Thu, 21 October 2010 at 7:27 AM

 I'm not sure what to tell you Rosie.  I think you may have to post what you are getting. 

---------
Phillip Drawbridge
Website 
Facebook


erosiaart ( ) posted Thu, 21 October 2010 at 9:03 AM

 working on it philip..will send them up step by step..
thanks a gazillion for all the help...


erosiaart ( ) posted Thu, 21 October 2010 at 9:10 AM

file_460610.jpg

 Step one.. create mirror.. 2d plane..mirror mat.. 


erosiaart ( ) posted Thu, 21 October 2010 at 9:11 AM

file_460611.jpg

 step two.. create sphere..put infront of mirror


erosiaart ( ) posted Thu, 21 October 2010 at 9:13 AM

file_460613.jpg

 render options..


erosiaart ( ) posted Thu, 21 October 2010 at 9:14 AM

file_460614.jpg

 rendered image..


erosiaart ( ) posted Thu, 21 October 2010 at 9:16 AM

 i feel like a clown or someone terribly silly...there must be something so simple that me not doing..and i can't get it. there is a post on it..  www.renderosity.com/mod/forumpro/showthread.php  has to do something with the camera positions too.. 
think i'm expecting magic on this...


skiwillgee ( ) posted Thu, 21 October 2010 at 2:55 PM

Think real world, Rosie.  If you look in a single mirror, you see a single image of yourself.  If you look at someone standing in front of a mirror will see that person and the reflection in the mirror (if the mirror is angled correctly; this is the situation in the scene you have posted)

Now consider yourself trying on that new dress in a clothing store.  Only when there is a mirror in front of you and BEHIND you will you see multiple images.   

The answer your problem: place a mirror behind the camera (the viewer) and the object with the second mirror in front of you.  Now you see the object, the reflected object in the mirror, then the reflection of both beyond that because the mirror behind you bounced everything back... ad infintium.  (sp?).  Mirror angles are critical also.

Nice thing about Bryce is the camera is invisible and never is seen in the image.

Hope that helps.


TheBryster ( ) posted Fri, 22 October 2010 at 5:44 AM
Forum Moderator

I think Willy just nailed your problem, Rosie.

Available on Amazon for the Kindle E-Reader

All the Woes of a World by Jonathan Icknield aka The Bryster


And in my final hours - I would cling rather to the tattooed hand of kindness - than the unblemished hand of hate...


skiwillgee ( ) posted Fri, 22 October 2010 at 8:34 AM

file_460633.jpg

Here is example with overhead view.  I used two infinite planes so not to get the shadow effect Phil had. The planes have mirror mats.  There is one torus.  One mirror is skewed just a few degrees from parallel with the second mirror.

The ray depth is set at 12 instead of default 6.


skiwillgee ( ) posted Fri, 22 October 2010 at 8:35 AM

file_460634.jpg

This is the resulting camera view render.


Claymor ( ) posted Fri, 22 October 2010 at 10:21 AM

That's it...camera in front of the mirror. I did an infinite hallway in an old challenge image ( I'm still trying to find it) that used that trick


ThunderStone ( ) posted Fri, 22 October 2010 at 2:15 PM · edited Fri, 22 October 2010 at 2:22 PM

Attached Link: Peelers

**Rosie, sorry I didn't read this post earlier... but if you check this picture... maybe it can help? What I did was use a box as an enclosure. What I did to get the appearance of the sky within the box was to boolean the box top. Experiment to get what you want.**

Hope this gives you an idea.


===========================================================

OS: Windows 11 64-bit
Poser: Poser 11.3 ...... Units: inches or meters depends on mood
Bryce: Bryce Pro 7.1.074
Image Editing: Corel Paintshop Pro
Renderer: Superfly, Firefly

9/11/2001: Never forget...

Smiles are contagious... Pass it on!

Today is the tomorrow you worried about yesterday

 


ThunderStone ( ) posted Fri, 22 October 2010 at 2:23 PM

Attached Link: Peelers toppers

Another one without the boolean top.


===========================================================

OS: Windows 11 64-bit
Poser: Poser 11.3 ...... Units: inches or meters depends on mood
Bryce: Bryce Pro 7.1.074
Image Editing: Corel Paintshop Pro
Renderer: Superfly, Firefly

9/11/2001: Never forget...

Smiles are contagious... Pass it on!

Today is the tomorrow you worried about yesterday

 


Claymor ( ) posted Fri, 22 October 2010 at 7:13 PM

file_460650.jpg

This was a challeneg entry a long time back. If you look at the shelves on the left of the pic the "back" mirror is mid shelf. The gap between the shelving units is where the the fron of the shelves repeats in the reflections. I did the hallway then composited in the man and desk which was a second render where the back mirror was replaced with a simple 2d plane. I'll post those in a second reply.


Claymor ( ) posted Fri, 22 October 2010 at 7:17 PM

file_460651.jpg

Early images used in the composite


Analog-X64 ( ) posted Fri, 22 October 2010 at 7:40 PM

Quote -  ok.. can i now be a pest and a silly and ignorant kid?  
black mirror??/ 
(and i feel so stupid asking this..) 

 

Its like magic, you mention someons name or something they've worked on and all of a sudden they appear out of thin air :)

 

Anyways, dont feel bad, I'm still trying to figure out how to make a mirror. ;)


erosiaart ( ) posted Sat, 23 October 2010 at 2:26 AM

Thanks everyone..will sit on it in a few hours..and let you know.. 


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