Technique for viewing 3D pictures

[onefivenine]

Help!

I have been trying to view these pics in 3D but am struggling. What is the technique? How close to the screen do you need to be?

I used to be able to view random dot stereograms easily after I got the first one... I just can't get these ones at the minute though!

It's a bit frustrating! http://bestsmileys.com/frustrated/4.gif

Cheers,
Dave

[John]

I've PM'ed Balliolman Dave to see if he would be kind enough to write a tutorial for the 3D forum.

[LordV]

Whilst waiting for the formal reply :)
Most of these are cross-eye steregrams (those magic eye things I think were parallel stereograms).
Sit about 18-24 inches from the screen then
These can be viewed as is by slightly de-focusing your eyes and then cross them until an image appears in the middle and then relax your eyes to get a stable 3-D image. It's worth the trouble!
But don't overdo it if you have difficulty- try again later.(headache warning).
Another way of trying is to put a finger on your nose and focus on it and then move the finger to the screen whilst tracking your finger (near the screen you should see two fingers)

Brian V.

[onefivenine]

Thanks Brian. Phew... I forgot about that weird sensation you get when you're looking at these - takes me back to those Magic Eye pictures.
But hey hey! Success! I just managed to see the Cathedral - and it is awesome!
I tried your lamb bone, Brian, but had to give up... it does screw you up if you try too hard! Will have another go later as you suggest. I think familiar images might be easier to start with.
Cheers for the tip, looking forward to seeing them all soon and with a bit of practise.


John, thanks also. I wonder if Balliolman Dave would include instructions on how to create these. It's a really interesting effect.

Need to lie down now - brain hurts... ;)

Dave

[Balliolman]

Give me a couple of days, Guys.

Practice makes perfect. Freeviewing is a skill like cycling, once mastered never forgotten! :eek:

[Jaime]

I have been trying for three days and not succeeding yet.

[John]

Give me a couple of days, Guys.

Practice makes perfect. Freeviewing is a skill like cycling, once mastered never forgotten! :eek:
Thanks Balliolman. :)

I have been trying for three days and not succeeding yet.
Join the club. :cry:

[onefivenine]

Excellent write-up Balliolman. I'm sure it will help everyone.

This leads me to another question, if I may be cheeky ;)
... how do you create these images - are they duplicates of the same image or is there some manipulation/tool required?

Cheers,
Dave

[Balliolman]

Excellent write-up Balliolman. I'm sure it will help everyone.

This leads me to another question, if I may be cheeky ;)
... how do you create these images - are they duplicates of the same image or is there some manipulation/tool required?

Cheers,
Dave

Thank you, Dave! :) For information sake the write up Dave is referring to has been deleted and made into a seperate sticky thread ...

Dave, the process with one camera is simply this click, sidestep and click. I then align images using the freeware stereo photo maker.

[onefivenine]

Nice one, thanks. Downloading it now and will keep it in the back of my mind from now on when out shooting. I'm keen to try some of these.
Cheers,
Dave

[Balliolman]

Nice one, thanks. Downloading it now and will keep it in the back of my mind from now on when out shooting. I'm keen to try some of these.
Cheers,
Dave

Excellent! :D I look forward to seeing your stereos. The auto-align function of SPM is very good, I recommend you also master how to align stereo chips manually for those times when the program gets fooled by certain details.

[onefivenine]

Careful now! I reckon you might need to write another sticky at this rate! ;)
More handy tips - thanks again :)
Dave