Carina Nebula - 3D Stereo (Cross Vision)

Cimitar (Evan) · #1 06-09-2015, 06:08 PM

Hopefully the forum will allow the larger image - it's easier in a bigger image to peruse the 3D detail. If you have any difficulties, try downloading and making the image smaller before viewing with cross vision.

Once you get used to cross vision it's relatively easy to switch between it and normal vision. I think I'm slowly getting the hang of it. Lately I've found myself processing cross-eyed though!

CROSS VISION INSTRUCTIONS:
In cross eye freeviewing the image for the left eye is on the right and the image for the right eye is on the left. You stare at a point about 1/2 way to the screen so that your eye's gaze is crossing at the half way point.
As you cross your eyes the image will go double. When your eyes are crossed the correct amount, the middle images will overlap and be in 3D. The two outer images may remain in your peripheral vision and will be in 2D.

Cheers
Evan

LewisM · #2 06-09-2015, 09:38 PM

Now THAT one really was immersive for me. M20 didn't "do it" for me unlike this one.

Please, can you explain HOW this is done - would love to try with some of my own images!

omegacrux (David) · #3 06-09-2015, 10:20 PM

I'd like to see the moon like this

David

Atmos (Colin) · #4 06-09-2015, 10:25 PM

I don't think my eyes can do it :/ I can go cross eyes easily enough but as everything goes completely out of focus when I am doing so, it's just a complete blur

The individual image is nice though

Cimitar (Evan) · #5 07-09-2015, 07:14 PM

Quote:

Originally Posted by LewisM

Now THAT one really was immersive for me. M20 didn't "do it" for me unlike this one.

Please, can you explain HOW this is done - would love to try with some of my own images!

I know what you mean. I think it's the dark open space in my M20 image that struggles to pick up the 3D effect. I've just converted my recent Milky Way image and it looks similar to this one - quite immersive

Sure! Be happy to explain. I'll document my work flow and upload here soon. In a nutshell - all the work is done in Photoshop (I'm using CS2) and I distort the image using the displace feature via a greyscale heightmap. I then skew the stars (essentially moving them away from the viewer or towards). Probably sounds complicated, however I assure you it's not.

I look forward to seeing some of your 3D conversions

Cheers
Evan

Cimitar (Evan) · #6 07-09-2015, 07:15 PM

Quote:

Originally Posted by omegacrux

I'd like to see the moon like this

David

Hi David - me too! I'm working on that one

Cimitar (Evan) · #7 07-09-2015, 07:19 PM

Quote:

Originally Posted by Atmos

I don't think my eyes can do it :/ I can go cross eyes easily enough but as everything goes completely out of focus when I am doing so, it's just a complete blur

The individual image is nice though

Hi Colin - thanks

If possible, try downloading the image and then resizing (say down to 50% of original size). The smaller you make it the easier it may be to get a clear 3D image. I'm used to the parallel viewing method so it took me a little while to bring things into focus via Cross Vision (parallel vision generally uses smaller images).

Once I learnt that Cross Vision permitted much larger images, I was hooked!

Cheers
Evan

LewisM · #8 07-09-2015, 07:33 PM

Quote:

Originally Posted by Cimitar

I know what you mean. I think it's the dark open space in my M20 image that struggles to pick up the 3D effect. I've just converted my recent Milky Way image and it looks similar to this one - quite immersive

Sure! Be happy to explain. I'll document my work flow and upload here soon. In a nutshell - all the work is done in Photoshop (I'm using CS2) and I distort the image using the displace feature via a greyscale heightmap. I then skew the stars (essentially moving them away from the viewer or towards). Probably sounds complicated, however I assure you it's not.

I look forward to seeing some of your 3D conversions

Cheers
Evan

REALLY looking forward to it, thanks!

omegacrux (David) · #9 07-09-2015, 09:21 PM

Cool

David

Rick Parrott · #10 08-09-2015, 07:54 AM

Even with that tiny image it's amazing! Great shot!

ZeroID (Brent) · #11 08-09-2015, 06:30 PM

My eyes are unfortunately very unbalanced in seeing, left is almost useless. I get transitory glimpses of the 3D effect but can't hold the viewpoint.
But very clever nonetheless, I'll keep trying and maybe I'll get lucky.
Well done, bring on the moon !!

texta (Mark) · #12 11-09-2015, 10:37 PM

That is awesome!

Never seen a picture quite like it. Love it.

How did you know what the depth data was for the picture Evan? That is, what was closer and what was further?

Awesome technique. Thanks for the work!

Mark

Cimitar (Evan) · #13 12-09-2015, 03:05 PM

Hi,

I've documented my 3D workflow and attached as a PDF. Apologies for it taking a little longer than expected. I look forward to seeing your results

Cheers
Evan

Cimitar (Evan) · #14 12-09-2015, 03:20 PM

Quote:

Originally Posted by texta

That is awesome!

Never seen a picture quite like it. Love it.

How did you know what the depth data was for the picture Evan? That is, what was closer and what was further?

Awesome technique. Thanks for the work!

Mark

Thanks mate

At the moment the final image is perhaps more art than science (I'm still getting used to the conversion process). Generally speaking if the star is brighter then it's likely to be closer to the viewer, bearing in mind though, of course, the nebulosity and any effect the star may be having - stellar winds etc.

Having said that, there is a real science side to it as well - If you obtain parallax information for the stars and do your research, you can accurately (within reason of course) portray many of the stars in their proper dimensions (relative to one another and the DSO).

Cheers
Evan