3D - Hobby Size Piano: You will need a pair of anaglyph glasses to view in 3D. 3D from two adjacent photos handheld. I just finished making this piano and the keyboard. The piano is...

SoHillGuy Loc: Washington

You will need a pair of anaglyph glasses to view in 3D.

3D from two adjacent photos handheld.

I just finished making this piano and the keyboard. The piano is made from basswood and the keyboard was made with SculpeyIII oven bake clay.

I see some areas now that need some touchup. I used 400 and 1000 grit sandpaper but Basswood doesn't like me. I would like to make one out of Oak but probably wouldn't find a block of it to make the piano body from. My paint area is in the dusty work shop.

Comments are welcome.

Photo Credit: GDM
Photo Credit: GDM...

(Download)

Terrymac Loc: LONDON U.K.

I like it. Thanks.

Uuglypher Loc: South Dakota (East River)

SoHillGuy wrote:

You will need a pair of anaglyph glasses to view i... (show quote)

kNice jobs...both thepiano and anaglyph.
Any chance you might pair up the original image pair (from which you produced the anaglyph) for either parallel or crossed gaze viewing?

Thanks,
Dave

SoHillGuy Loc: Washington

Terrymac wrote:

I like it. Thanks.

***
Thank you, Terry

SoHillGuy Loc: Washington

Uuglypher wrote:

kNice jobs...both thepiano and anaglyph.
Any chance you might pair up the original image pair (from which you produced the anaglyph) for either parallel or crossed gaze viewing?

Thanks,
Dave

***
Response by PM.

selmslie Loc: Fernandina Beach, FL, USA

SoHillGuy wrote:

... Comments are welcome.

I figured out why I am seeing a faint ghosting in the red part of the image. The red filter in both of my anaglyph do not block all of the cyan color.

Otherwise the 3D is totally correct as expected from an image pair captured from separate viewpoints.

SoHillGuy Loc: Washington

selmslie wrote:

I figured out why I am seeing a faint ghosting in the red part of the image. The red filter in both of my anaglyph do not block all of the cyan color.

Otherwise the 3D is totally correct as expected from an image pair captured from separate viewpoints.

The red lens in my glasses also does not block the cyan color.
I'm going to spend a little time searching the web and see if there is an answer why. Cheep glasses maybe.

selmslie Loc: Fernandina Beach, FL, USA

SoHillGuy wrote:

The red lens in my glasses also does not block the cyan color.
I'm going to spend a little time searching the web and see if there is an answer why. Cheep glasses maybe.

Red and green simply overlap a tiny bit. Green and blue overlap a lot more but they are not the problem because they combine to make cyan.

With a sharper red cutoff you might lose a little red but whoever is making affordable anaglyph glasses is not aiming for perfection.

We could probably not get a sharper cutoff between red and not red without spending a lot more for the glasses.

Fotoartist Loc: Detroit, Michigan

I gathered that by closing one eye you can really see the cutoffs working better or not.

selmslie Loc: Fernandina Beach, FL, USA

Fotoartist wrote:

I gathered that by closing one eye you can really see the cutoffs working better or not.

Yes, the cutoff for the standard anaglyph red filter is too low and it lets in a little green.

The cutoff for cyan is more conservative and it lets in no red at all.

Most of the luminance (half, for Bayer and almost half for Fuji) is recorded by the green pixels. We can sacrifice a little of that. About a quarter of the luminance is recorded by the blue pixels.

But red only records about a quarter of the total luminance. If you raise the cutoff to eliminate the green you might start to see some loss of red brightness.

Guyserman Loc: Benton, AR

Excellent 3D perception from using two actual photographs. Much better than 2D conversions which sometime look like cardboard cutouts.

SoHillGuy Loc: Washington

Guyserman wrote:

Excellent 3D perception from using two actual photographs. Much better than 2D conversions which sometime look like cardboard cutouts.

***
Yes, It is hard waiting for better photographic weather to arrive. To wet for even web feet.

Guyserman Loc: Benton, AR

SoHillGuy wrote:

***
Yes, It is hard waiting for better photographic weather to arrive. To wet for even web feet.

I hear you about the weather. I did get out a few days ago and went down to the river to 3D photograph some rocks at a shallow place in the river. The rocks turned out good but the white water around them didn't work at all since it was different between the two photographs. (I wasn't thinking clearly when I decided to go there.) Looking forward to giving it another try and looking forward to seeing more from you and others.

htbrown Loc: San Francisco Bay Area

SoHillGuy wrote:

I see some areas now that need some touchup. I used 400 and 1000 grit sandpaper but Basswood doesn't like me. I would like to make one out of Oak but probably wouldn't find a block of it to make the piano body from. My paint area is in the dusty work shop.

Nice job! Hit it with some 1/2 lb cut shellac and the grain will freeze, after which the sandpaper will smooth it as much as you please. For reference, store-bought shellac in a can is usually 2 lb cut, so take 1 part shellac and three parts denatured alcohol to get your 1/2 lb cut.

SoHillGuy Loc: Washington

Guyserman wrote:

I hear you about the weather. I did get out a few days ago and went down to the river to 3D photograph some rocks at a shallow place in the river. The rocks turned out good but the white water around them didn't work at all since it was different between the two photographs. (I wasn't thinking clearly when I decided to go there.) Looking forward to giving it another try and looking forward to seeing more from you and others.

***
Between the wind, people, and water moving during exposures you have to get creative. If I remember before converting I will remove subjects that moved from one of the two photos and try to blend the area. It works some of the time.