3D Movie anaglyph Conversion

• Convert 3d Blu-ray Discs to anaglyph 3d.
  • I used this process during October since that's when you look most dope in glasses

Anaglyph Examples

anaglyph.red_cyan.color

anaglyph.red_cyan.color_optimized

anaglyph.red_cyan.grey

anaglyph.red_cyan.half_colored

1. Ripping the Disc

• Using a modified Blu-ray Drive I can make backups of my movies using MakeMKV
  • Ensuring to include the 3d element option
• Output is a normal mkv file that can be played as 2D Film
  • The 3D Element is embedded in the file itself.
• Example Info

  Stereo [email protected]/ [email protected]
      Both Eyes laced in one block (left eye first)
      stereo_mode: block_lr
  

2. Prep file for conversion

• It requires some work to get the file ready to be converted to anaglyph 3d.
• Currently, the initial step must be done with the BD3D2MK3D GUI to generate the side by side file.
• Steps:

  1. Open file in program

  2. Select full side-by-side

  3. Tune to film and slow with CRF at 18

     • Maybe doesn't need to be so low, but there is still another step of conversion so I like to keep the video as crips as can be
     • Allow program to finish creating a setup

  4. A new window opens, choose __ENCODE_3D_LAUNCHER.cmd

  • I have this set to be in the same directory as the movie
  • Launching will then generate the file as a side-by-side mkv file
  • For our purposes I used the original 3D movie House of Wax

3. Conversion to Anaglyph

• Once we have our prepped file we can now use ffmpeg to convert our file to various versions of anaglyph 3D.
• Below if a script written in python as a wrapper to allow for movies to be converted into a few variance of the red/cyan anaglyph format.

import os
def Convert_to_anagraph_all(movies: dict, stereo_in: dict, stereo_out: dict, delete: bool = False):
    """
    Create 3D anagraph version of movies from a Side-by-side source
        Opens ffmpeg in terminal and does loop
        can output any 3d desired, but is intended for red/cyan anaglyph
    """
    for movie, location in movies.items():
        if delete:
            os.remove(f"{location[:-4]} {{3D}}.mkv")
        print(f'Converting {movie} to 3D')
        for filter_in, info in stereo_in.items():
            for filter_out, info2 in stereo_out.items():
                print(f'Trying out {filter_in}:{filter_out} | {info}:{info2}')
                string = f'ffmpeg -i "{location}" -metadata stereo_mode=block_lr -q 18 -vf stereo3d={filter_in}:{filter_out} -tune film  "{location[:-16]}.{{edition-3D {info2}}}.mkv"'
                os.system(string)
    print('Done')

in_stereo = {
    "sbs2l": "side_by_side.parallel.half_width_resolution",
    "sbs2r": "side_by_side.crosseye.half_width_resolution"   
    }

out_stereo = {
    "arcg": "anaglyph.red_cyan.gray",
    "arch": "anaglyph.red_cyan.half_colored",
    "arcc": "anaglyph.red_cyan.color",
    "arcd": "anaglyph.red_cyan.color_optimized"
}

Convert_to_anagraph_all(movies={"House of Wax": ".\The House of Wax 3D-SBS 1080p.mkv"}, stereo_in=in_stereo, stereo_out=out_stereo)

Converting House of Wax to 3D
Trying out sbs2l:arcg | parallel.half_width_resolution:anaglyph.red_cyan.gray
Trying out sbs2l:arch | sparallel.half_width_resolution:anaglyph.red_cyan.half_colored
Trying out sbs2l:arcc | parallel.half_width_resolution:anaglyph.red_cyan.color
Trying out sbs2l:arcd | parallel.half_width_resolution:anaglyph.red_cyan.color_optimized
Trying out sbs2r:arcg | side_by_side.crosseye.half_width_resolution:anaglyph.red_cyan.gray
Trying out sbs2r:arch | side_by_side.crosseye.half_width_resolution:anaglyph.red_cyan.half_colored
Trying out sbs2r:arcc | side_by_side.crosseye.half_width_resolution:anaglyph.red_cyan.color
Trying out sbs2r:arcd | side_by_side.crosseye.half_width_resolution.red_cyan.color_optimized
Done

Required Programs

• Programs needed to complete the 3d conversion

BD3D2MK3D

• Forum
• Home Page
• Requires AviSynth as a frame server
• Doesn't seem to allow anaglyph directly
• Does allow for Side by Side at full size
  • This can then be converted to anaglyph later

AviSynth

• Current Release
• HomePage
• Needed as a frame server for BD3D2MK3D
• This some kind of video scripting language
  • the output is video instead of text

ffmpeg

• Probably not useful for makemkv mkv to 3D direct
  • Will probably need to use BD3DMK3D to use full side by side and then anaglyph