Adric at Quelab received a HOLOGRAM display (Portrait) from the LOOKING GLASS FACTORY. I massaged some of my creations into formats that could be displayed as holograms in three ways. My hologram files are available in a shared folder.
Format
The first files in the video are created adding a the "Depth Map" to the JPG image. The depth map has to be adjacent to the original image, before uploading to the hologram display.
Looking Glass Factory has an online program (paid) that creates images with depth maps, and Adric used that (apparently Owl3D) to create the first hologram of one of my drawings:
My pencil drawing altered by AI
coupled with a "depth map" --
to be uploaded to the "Portrait" hologram display
I used the Artificial Intelligence programs VQGAN+CLIP and Deep Dream Generator to first warp one of my drawings into something completely different.
- Then I created a Depth Map using the free online program DPT Large.
- I stitched the Depth Map next to the original image using XnView (Create>Strip of images...)
Note that it seems to make no difference if the Depth Map image is on the right or left- The Depth Map image always has to be on the right
The Depth Map image always has to be on the right
Download the top image pair -- 211026_C_with_depth_map.jpg (903.42 KB, 2048 x 1024 pixels) -- for viewing on the hologram display
This hack seemed to work as well as the paid method.
Format
One can also create a "Quilt" JPG or PNG image file, made of a sequence of images, to then view as a hologram, as seen below.
- On May 4th I created a 3D figure drawing in Paint 3D (200504_A.glb in the zip download -- 2.63 MB)
- I saved an MP4 video in Paint 3D of that object spinning in 360° (Menu>Save As>Video>Animation/Turntable)
- I imported that MP4 into EzGIF to convert it into a SPRITE file (explanation at the bottom of this blog post)
- UPDATE: This probably looked fuzzy because the figure rotated too fast, and thus the hologram display was delivering simultaneous images that were more extremely different than normal stereo vision
5 x 5 Quilt
LOOKING GLASS FACTORY recommends the following QUILT image for the PORTRAIT display:
So I improved on the above image:
But I had to FLIP the image horizontally in order to put the SPRITE/QUILT in the proper sequence:
Download the larger file for hologram viewing:
(4.88 MB, 3360 x 3360 pixels)
8 x 6
3360 x 3360 pixels
4:3 ratio
UPDATE: This image was not smooth either, but it was the most interesting of all the holograms on this page. It also "looked" different from a distance than it did up close.
LOOKING GLASS FACTORY also asks for a specific naming convention:
We also uploaded a fake Dalí 3D file, in a less than idea format (only 5 x 5), and it did not look smooth -- it looked horrible. It looked more like a lenticular image. However it did technically work on the hologram display. There may still be hope:
BLENDER ADD ON
I used the BLENDER add on -- AliceLG-Beta. I exported a QUILT for the Portrait display of my figure 210223__02_decimated.glb (second in this zip file).
- I had to upgrade to BLENDER 2.93.6 to use it.
- This YouTube video told me how to do it -- Holograms with Blender - Looking Glass Tutorial
- I reduced the 8.34 MB file down to 1.41 MB using RIOT (settings for 256 colors)
Download the larger file for hologram viewing:
3360 x 3360 pixels
1.41 MB
SPRITE
Conversion using EzGIF
After creating the 3D image in Paint 3D (free program on Windows 10), I exported an MP4 "Turntable" video. Note that I choose the following settings:
- Turntable
- 30 Frame rate
- Speed multiplier: 1.00
- Number of loops: 1
I imported the MP4 file into EzGIF online and cropped the video. Note that I used a 4:3 format, by inserting Height 800 and Width 600:
The resulting SPRITE image
is 8 columns x 5 rows,
with two leftover frames
After downloading the SPRITE file, I cropped out the two leftover frames, and resized the whole image to 3360 x 3360 pixels. I also increased the contrast:
The cropped and contrast adjusted SPRITE
HOWEVER the SPRITES I made with EzGif are ordered differently than the QUILTS that the hologram display accepts. The QUILTS are a mirror image of the SPRITES:
Therefore I flipped the SPRITE image horizontally to convert it into a proper hologram QUILT:
ISSUES
There might be an issue with flipping the SPRITE to make a QUILT. If there is any text in the image, it will show backwards.
Another issue with the above QUILT is that the main image -- that viewed from looking straight onto the hologram screen -- would be a side view, not a full head-on view. This could be resolved by starting the spin in Paint 3D as a side view, before saving as a "Turntable."
THOUGHTS
- Create Light Field images
- iPhone picture
- BLENDER -- Using a Blender add on to make images to show as a hologram
- 3D model importer (I don't think we got it to work)
Perhaps we get get Artificial Intelligence to create 3D holograms, that we could also view in VR and AR, and print on a 3D printer. It would be even better if that were based on one of my drawings.
UPDATE
Dec 8, 2021
SUCCESSFUL HOLOGRAMS:
Then we took screen captures of the two different hologram images (Ctrl/Alt/PrtSc). These screen captures can be imported directly into the hologram display -- and are seen as a hologram, exactly the same experience as when importing the QUILT.
Below are smaller versions of these screen captures, with links below to both the QUILT and the higher resolution screen captures for downloading:
Quilt: 210504-Aa_qs8x6a0.75.jpg (4.72 MB)
Larger version: 210504-Aa.png (3.46 MB)
210504-Aa_qs8x6a0.75.jpg
Quilt: 210504-Ab_qs8x6a0.75.jpg (4.94 MB)
Larger version: 210504-Ab.png (3.16 MB)
Also when we connected the hologram display, my laptop recognized it as an extended monitor. This way we were able to create a hologram directly on the display using Blender. We had to first import the Add-on to Blender, and from there import additional Python scripts. Here is a Blender/Looking Glass video.
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