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Playing with light From videoprojections to mapping Núria Xaubet i Pujadó Overview of the videoprojections and the evolution towards the new era with vj’s and mapping, explaining the most relevant items and making an analysis about it. Tecnocampus MataróMaresme & Glyndwr University December 2012

Dissertation. Playing with light

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Playing  with  light  From  videoprojections  to  mapping  

Núria  Xaubet  i  Pujadó  

 Overview  of  the  videoprojections  and  the  evolution  towards  the  new  era  with  vj’s  and  mapping,  explaining  the  most  relevant  items  and  making  an  analysis  about  it.        

 

 

 

 

 

 

 

 

Tecnocampus  Mataró-­‐Maresme    

&  Glyndwr  University  

December  2012  

Index    

1.   Introduction   1  

2.   Background   2  

3.   Nowadays   3  

4.   Development.  Process   4  4.1.   Study  of  the  space   4  4.2.   Creation  of  the  content   5  

4.2.1.   Inspiration   5  4.2.2.   Visual  content   5  

4.3.   Output.  Projection   6  4.3.1.   Software   6  

4.3.1.1.   Madmapper   6  4.3.1.1.1.   Syphon   6  4.3.1.2.   Resolume   7  4.3.1.3.   Modul  8   7  4.3.1.4.   VDMX   7  

4.3.2.   Projectors   7  

5.   Types   10  5.1.   Architecture   10  5.2.   Interactive   10  5.3.   Audiovisual  performances   11  5.4.   Light  painting   11  5.5.   Live  shows.  Concerts   12  5.6.   Retro  projections   12  

6.   Relevant  artists   13  6.1.   Antivj   13  6.2.   D-­‐Fuse   13  6.3.   VJ  Culture  (Grant  Davis).   13  6.4.   Coldcut   14  

7.   Some  applications.  Analysis.   15  7.1.   Mappings  on  people   15  7.2.   Black  line   16  7.3.   Mappingson  a  Building   16  7.4.   Mapping  on  a  show.  “Com  va  la  vida”.   17  7.5.   The  V  Motion  Project.  Interactive  mapping.  Kinect.   18  

8.   Conclusion   19  

9.   Bibliography   20  

Table  of  figures      Figure  1:  Blender                      9  Figure  2:  Architecture                   10  Figure  3:  Audio-­‐visual  performance               11  Figure  4:  Light  painting                   11    Figure  5:  The  Icebook.  Retroprojection               12  Figure  6:  Mapping  on  a  people                 15  Figure  7:  Eyjafjallajökull  (Black  line  example)           16  Figure  8:  Cathedral  of  Santiago  de  Compostela               16  Figure  9:  ‘Com  va  la  vida’                 17  Figure  10:  V  Motion  Project                 18          

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1. Introduction      Video   projections   are   video   signals   that   are   projected   on   a   surface.   If   we   develop   the  technique   a   little   bit   further   and   try   to   project   different   content   than  what  we   are   used   to  watch  (films,  presentations,  conferences…),  and  we  also  change  the  aim  and  the  way  it  is  done  by  adapting  this  projection  to  the  structure  of  our  surface,  we  will  give  life  to  an  unanimated  surface.  That  is  mapping.      Mapping   born   due   to   the   evolution   and   the   development   of   new   technologies:   computers,  new  projectors,  the  software’s  evolution,  Internet  and  of  course,  because  of  the  society.  These  are  the  bases  and  reasons  of  the  video  projections  development.        More  and  more  people  are  interested  in  being  introduced  at  this  technique  or  even  improving  their  knowledge  about  projections  and  that  is  because  of  the  step-­‐by-­‐step  learning  process  of  the  technique  that  we  can  see  in  a  lot  of  applications,  as  I’ll  explain  along  this  dissertation.      Video  projections  have  a   lot  of  applications.  This   is  one  of   the   reasons   for  which  mapping   is  being  so  popular  and  remains  in  audio-­‐visual  and  multimedia  society.  The  fact  of  being  able  to  create,  produce  a  different  audio-­‐visual  piece  or  multimedia  and  feel  like  artists  has  made  that,  conscious  or  not,  we  are  surrounded  with  all  kinds  of  video  projections.      The  type  of  projections   that  stands  out,  currently,   is   the  Vj   (Video   Jockeys).  People   that  play  with   light,  doing  real  artistic  creations.  They  appear  for   first  time   in  1981  as  announcers  of  a  program  featuring  music  videos.  At  present  they  are  known  as  an  artist  who  creates  and  mixes  video  live  and  synchronises  it  to  music.  They  are  audio-­‐visual  and  multimedia  artists.        

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2. Background    

We  could  say  that  the  origins  of  musical  video  projections  are  in  the  dance  halls  of  the  eighties.  It   was   here  when   the   image   started   to   be  mixed  with   the   sound.   People  was   choosing   the  music,   named   DJ   (Disk   Jockeys),   created   loops   of   images   (random   or   not)   and   had   to  synchronise   them  with   the  audio,   in   such  a  way   that   generated   some  contents   that  went   in  accordance  with  music.   It  created  a  spectacular  effect  by   the  age.  They  were  Dj  and  were   in  charge  to  play  with  the  video  live.          This  technique  is  getting  better  and  improving  along  years  and  every  day  it  has  evolved  more,  not  only  for  discotheques,  but  also  in  any  type  of  show.      At   the  end  of   the  70’s  electronic  music  was  born,  which  opens  a  new  way   in   ‘House’  music.  There  was   the  need   to  have  new  visual   experiences,  beyond   the  music.  At   this  moment   the  ‘figure’  of   vj  was  born.   First   vj’s   appeared  at   the  end  of  70’   at  New  York,   in   the  Peppermint  Lounge  Club,  a  place  destined  to  the  development  of  the  video  art  and  performances.  This  club  was  the  main  place  where  this  technique  was  developed  and  where  techno,  trance  and  house  music  (among  others)  were  synchronised  with  video  performances.  This  mixture  of  music  and  video  filled  the  gap  that  there  was  on  stage  at  that  moment.      VJ   culture   has   evolved.   At   the   end   of   20th   century,   society  wanted   to   experience,   to   create  contents  related  with  cinema,  architecture,  music,  design,  improvisation,  creation  and  in  short  the  digital  art.    Later  on  this  culture  was  also  known  with  the  name  of  ‘ve-­‐je’,  ‘vijing’  or  ‘vi-­‐ji’,  and  they  helped  to  develop  the  elements  of  the  audio-­‐visuals  live  performances.      Anyway,  the  term  VJ  means  “video  presenter  in  musical  video  tv  program”  and  they  act  as  disk  jockey.  MTV  (Music  Television)  was  the  main  promoter  thanks  to  having  a  TV  program  based  on  video  clips  that  had  broadcast  to  give  more  rhythm  and  dynamism.      Some  of  the  most  respected  VJs  are:  The  Light  Surgeons,  Actop,  D-­‐Fuse,  UVA,  8gg,  Elliott  Earls,  Coldcut/Hexstatic,  Visual  Kitchen,  etc.            

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3. Nowadays    Currently  video  projections  are  a  very  common  technique.  Firstly  we  could  only  dind  them  in  cinemas,   presentations   or   any   other   show   that   needed   to   project   a   video   or   image   on   a  surface,  but  now  the  VJ  culture  has  appeared,  people  that  plays  with  light  and  visual  arts.    We  can   mainly   find   them   in   discotheques,   clubs   or   concerts   where   they   work   making   live  performances.    These  artists  work  with  a  computer  and  some  visual  content  synchronized  with  the  music,   in  such  a  way  that  when  it  is  projected,  the  images  move  around  with  the  same  rhythm  than  the  music.        This  technique  improved  along  the  years  thanks  to  the  technological  evolution  and  the  needs  of  the  society.  They  don’t  only  projects  in  musical  spaces,  but  also  we  can  find  them  in  every  type  of  space   like  theatres,  shows,  sculptures,  museums,  music  festivals  and  other  electronic  music  events,  on  people  or  cars  or  any  other  elements,  which  so   far  we  couldn’t   imagine.   In  this  way,  creativity  has  been  developed  and  we  can  achieve  to  produce  works  of  art  by  only  playing  with  light,  sound,  a  basis  and  imagination.      This  has  made  that  other  demonstrations  related  with  performances  have  appeared,   like   live  art  –in  a  space  of  art  to  make  a  session  of  vj,  where  it  will  also  be  instructive-­‐,   livepainting  –improvising   performance   art,   in   which   artists   complete   a   visual   art   piece   in   a   public  performance–,  live  performance  –project  which  it  can  be  represented  like  a  act  that  it’s  part  of  an  exhibition  of  art’s  works-­‐.  And  live  cinema  –That  one  that  is  represented  in  cinemas–1.    Audio-­‐visual   performances   and   live   cinema   find   themselves   immerse   in   a   new   electronic  culture  and  in  the  new  media  art.  The  Vj  culture  represents  a  new  production  technique  of  a  video  creation  in  time  with  the  realization  and  mixture  of  the  contents  in  real  time.  Moreover,  there   is  a  big  community  behind  this   technique.  People   that  want   to  grow,   to  be   formed,   to  create,  to  improve,  to  succeed  and  to  become  popular  in  the  vjing’s  world  and  Internet.  New  technologies  have  been  the  fundamental  root  of  all  this  development.                      

                                                                                                               1El  VJ  y  la  creación  audiovisual  performativa.  Tesis.  UniversidadRey  Juan  Carlos,  Madrid,  2010  

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Video  Clips   Production  tools   Video  synthesizers  

VJ  software   Production  tools  Process  

Contents    

Output   Projector   Monitor  

Space’s  study     Cameras   VJ  software  

4. Development.  Process    To  make  a  mapping  we  have  to  follow  several  steps.  First,  we  have  to  know  the  base  where  we  will   project,   if   it   will   be   a   handmade   recreation,   a   construction,   a   flat   screen   or   any   other  element  or  surface.  In  any  case,  the  process  can  be  different  depending  on  the  surface.        If  we  have  to  map  a  big  building  like  a  monument  or  a  cathedral  that  is  going  to  be  far  from  our  job,  the  preproduction  will  be  longer  because  we  can’t  work  in  front  of  our  base.  In  these  cases  we  should  to  make  a  3D  model  of  the  building  to  work  at  home  or  at  the  studio,  and  it’s  also  important  to  know  the  accurate  sizes  to  achieve  a  good  result  without  modify  anything  when  we  go  to  project  our  work  on  this  construction.      We  can  divide  the  steps  by:  

   

 4.1. Study  of  the  space  

 First  of  all  we  have  to  define  our  set  (the  surface  where  it  will  be  projected)  and  make  it  digital  to  have  a   reference.  There  are   two  options   to  prepare  a  mapping.  We  could  go   to   the  place  where  we  will   do   the   projection   and  work   there,  with   the   computer,   the   projector   and   the  object  in  front  of  us,  or  bring  an  exact  image  of  the  object  model  with  us  and  by  doing  this,  we  will  be  able  to  work  from  home,  this  is  named  spatial  scanner.  In  big  mappings,  like  buildings  or  big  shows,  it  is  recommended  to  take  the  second  option.    To  take  an  image,  the  software  Madmapper  (explained  at  point  4.3.1.1)  includes  an  option  that  can   transform   our   projector   into   a   2d   scanner   only   using   camera,   the   projector   and  Madmapper  software.  So  we  have  to  link  our  camera  and  projector  to  our  laptop  (it  is  required  to   use   a   specific   Canon   EOS   camera,   the   software   only   supports   some   ones,   so  we   have   to  check  our  camera  compatibility).    When  these  three  devices  are  connected,  we  can  tell  the  software  to  send  instructions  to  the  projector  in  such  a  way  that  the  camera  takes  photos  every  time  that  projector  projects  signals  

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of   light,   like  white   lines:  vertical,  horizontal,  thicker,  thin,  diagonal,  etc.  Finally  we  will  obtain  many  photos  that  the  software  will  merge  in  a  digitalized  image  of  reality,  so  the  result  will  be  one  photography  that  reflects  the  true  as  a  base  to  work  on  it  with  After  Effects,  Cinema  4D  or  the  same  vj  software’s.        This  is  a  good  way  because  without  this  spatial  scanner  we  have  to  be  at  the  exact  place  where  we  will  do  our  mapping.  There  are  some  times  that  we  can’t  be  at  the  same  place,  for  example  when  we  are  mapping  a  building,  it’s  better  to  have  an  exact  photo  of  our  space  and  later  go  to  the  place  with  all  work  done  and  with   the  only  need   to  do   the   last  adjustments   to   start  our  video  projection.    

4.2. Creation  of  the  content    

4.2.1. Inspiration    Mapping  is  a  technique  that  requires  a  long  time,  the  surface  have  to  be  represented,  square  this  with  the  reality,  transform  you  into  artist  and  create  all  the  visual  content,  besides  adding  visual  part  to  it,  therefore,  it’s  obvious  that  one  of  the  most  important  capacities  to  remain  it’s  the  patience  to  work  and  especially  the  creativity  and  desires  to  test  new  things.      We  have   explained   that   it   have   a   great   relationship  with   electronic  music,   since   it   has   their  origins.   If  we  analyse  it,  we  will  see  that  some  elements  stand  out  over  others,  these  are  the  repetitions,  the  loops  or  the  programming.      One  of   the  techniques  that  creators’  use   is   the  sampling,   fragments  of  a  sample  that  we  will  use  again  in  a  future.  Sampling  can  also  be  made  with  loops,  that  is,  a  continuous  repetition  of  fragments.  The  programmer  has  to  mix  all  these  elements  and  configure  them  as  random.    In   this  way,   if  we  change   the  music   for   image,  we  will   find   that  many  of  visuals  are   loops  of  videos  created  previously.        

4.2.2. Visual  content    The  visual  content  of  the  video  projections  are  formed  by  a  set  of  animations  and  effects  that  we  have  created  previously  with  specific  software.  Typically  we  can  found  as  3D  animations  as  2D.    To  create  3D  animations  we  can  use  different  3D  software.  There  are  a  large  list,  but  probably,  software’s  most   used   in   that   aspect   are   Cinema   4D,   Autodesk  Maya,   Autodesk   Studio  Max,  Blender,  etc.      There  is  a  mainly  software  to  create  visual  content,  it  is  After  Effects.  We  can  integrate  3D  and  2D   animations   in   it.   It’s   one   of   most   used   to   make   this   type   of   work,   the   preview   of   the  projection,   so   it’s   a   very   important   program   and   it’s   good   to   have   knowledge’s   about   it   to  become  a  good  vj.    

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4.3. Output.  Projection    

4.3.1. Software    How  we  explained,  we  can  create  the  content  of  a  mapping  using  a  large  variety  of  software,  but  to  project  we  need  some  more  specific.  There  is  a   lot  of  software  for   it  and  here  are  the  most  popular:      

4.3.1.1. Madmapper    

This   is  another  software  to  make  video-­‐mapping  projections  (only  for  Mac  OS).  This  software  allows   the   artist   to   create   some   content   and   make   the   experience   of   mapping   textures   to  physical  objects  in  a  real  time.      The  interface  of  the  software  is  divided  by  two  workspaces:  a  utility  column,  and  at  the  right  side,  there  are  two  Windows  to  manipulate  the  surfaces:  Input  and  Output.  The  fact  of  having  this  structure  represents  that  it  is  especially  focused  on  the  process.  In  the  input  we  can  work  with  the  videos,   images  or  any  content  we  put   there.  Here  we  have  to  adjust  and  transform  the  surfaces  to  select  the  exactly  zone  we  can  use  to  be  visible  on  the  output  view.    

4.3.1.1.1. Syphon    

Unlike   Resolume  or   another   software’s,  Madmapper   doesn’t   offer   so  much   control   of  video  controls,  but  it  focused  more  in  the  process  of  the  digital  surface  representation  of  the  physical  objects  in  the  computer.    To   improve   this   problem   of   capacity   of   the   video   control,   it   has   been   created   an  application  that  accomplishes  this  task.  Syphon  is  a  plug-­‐in  that  allows  us  to  connect  two  programs,   for  example  Resolume  and  Madmapper,   in  such  way,   that  all  videos  we  are  preparing   to   Resolume  will   be   able   to   have   them   synchronized  with  Madmapper.   It’s  syphon  and  has  compatibility  with  a  variety  of  main  software’s   like  Modul8,  Resolume,  VDMX,  Quartz   Composer,   and   more.   For   this   reason   is   a   good   option   if   we   want   to  introduce  external  elements  

       

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 4.3.1.2. Resolume  

 Software   created   to   video   projection,   mainly   live   performances.   It   is   one   of   the  most   used  software’s  at  present.    It  have  capacity  to  save  several  layers  of  videos  with  different  columns  at  the  same  time,  in  this  way,  we  can  mix  them  and  play  them  together,  or  at  different  times,  synchronized  with  the  music,  etc.      It  has  a  section  to  create  patches  o  surfaces  to  represent  digitally  and  exactly  all  the  surface.  We  can  divide  it  by  input  and  output  signals.  The  second  one  it’s  used  to  define  where  we  will  project  our  videos.  In  such  way  to  square  every  video  with  the  area  appropriated.  It  can  work  in  Windows  as  well  as  Mac  OS  platform.        

4.3.1.3. Modul  8    We  can   find  more  software’s   to  create  video  projections.  Another  one   is  Modul8.   It’s  similar  than  the  last  ones,  used  to  lunch  videos  and  to  manipulate  these  from  the  same  application  at  the   real   time,   it’s  not  difficult   to  use   it,   in   such  a  way   that   it’s   indicated   if  we  need   to  work  immediately   to   make   spontaneous   creations   or   interactive   installations,   etc.   Therefore,   it’s  indicated  to  make  live  performances,  theatre,  vj  sessions  or  contemporary  art.      It’s  popular  software.  It’s  easy  to  interpret  if  we  have  some  minimum  knowledge’s  about  these  software’s.  It’s  designed  for  MAC  OS  and  created  by  vj’s  that  needed  a  program  that  fit  to  their  needs.  They  are  GarageCUBE  and  they  also  take  part  of  the  Mapping  Festival  placed  every  year  in  Geneva.        

4.3.1.4. VDMX    

Software   to   create   applications   of   video   processes   in   real   time.   It   allows   us   to   create  spectacular  effects.  The  interface  is  based  on  modules  and  it  let  us  to  construct  our  own  virtual  video   studio   from   different   presets.   It   has   interaction   with   another   applications   like   Quartz  Composer,  software  to  create  content  using  the  programming.    The  main  use  is  for  vj’s,  performers,  events,  visual  artists,  shows.  .      

4.3.2. Projectors  

 It’s  very   important  to  know  which  projector  we  will  use   in  our  mapping.  This  will  describe  us  the  resolution  with  which  we  will  work  and  will  project.  On  the  other  hand,  it  is  also  important  to  know  other  aspects  as  the  space  where  we  will  work;   the  amount  of  people  who  will  see  the   projection   (determines   the   size   of   the   projected   image);   the  distance   that   there  will   be  between  the  light  source  and  the  surface  will  receive  light  (to  be  able  to  square  the  sizes  and  to   create   the   content   correctly);   the   contrast   (for   the   brightest   or   dark   images);   and   the  surface  of  the  screen,  or  in  this  case,  the  model  or  base  on  we’ll  project.    

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 The   projectors   have   a   large   variety   of   technical   specifications.   The   most   important   are   the  resolution,  the  amount  of  light  or  brightness,  the  sensor  technology  or  the  lenses  angle.  Next  you  can  see  these  most  relevant  features  and  the  main  characteristics.          

Resolution  

Native  resolution:  it’s  the  real  resolution.  (Non-­‐compressed  and  not-­‐expanded)  

Input  signals   Resolution  (px)  

Standard  SVGA   800  x  600  XVGA  WXGA  

1024  x  768  1280  x  720  

 

HD  Ready  1280  x  1024  1440  x  1080  

Full  HD  1920  x  1080  16:9  1920  x  1280      4:3  

2K  or  4K    

(cinema)  

Sensor  technology    

DLP  (Digital  Light  Processing)    

LCD  (Liquid  Crystal  Display)  ·∙  Height  brightness  and  contrast  

-­‐ ·∙  Low  efficiency  -­‐ ·∙  Smoother  video  -­‐ ·∙  Smaller  box  -­‐ ·∙  Generate  more  dark  blacks,  the  

mirrors  inside  the  System  reflect  all  light.    

-­‐ ·∙  Need  more  lumens  in  ambient  light.    

-­‐  

·∙  Rich  colours  ·∙  Low  contrast  ·∙  More  visible  pixels  (screen  door  effect)  ·∙  Larger  box  ·∙  Blacks  more  grey.  More  lighters  ·∙  Good  quality  in  ambient  light  

Brightness.      Very  relevant  aspect  for  projectors.  Measured  in  ANSI  lumens.  Defined  by  the  audience,  the  size  of  the  room  or  the  place  brighter.      

1000  or  less  

 For  smaller  and  closer  rooms,  without  any  ambient   light.   It   is  a  cheaper   option.   Is   becoming   a   Standard   for   the   industry.      

1000  to  2000  

For  a  rooms  with  a  normal  lighting  condition.  It’s  not  necessary  an  extreme  darkness.  Used  for  conferences,  school  usage  and  a  usual   presentations.   However,   it’s   advisable   to   reduce   the  environmental  light  that  there  can  be.    

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 Moreover,  we  can  pay  attention  to  other  aspects.  For  example  the   lenses,  these  works  like  a  camera,   where   the   smaller   number  means  more   light.   The   lens   also   can   be   without   zoom,  including  a  manual   zoom  or  with  a  power   zoom   (motorized,  we  can  adjust   the   image  at   the  moment).      We  can  also  consider   the  portability,   the  size  and  weight.  We  have  to  know  the  use  we  will  give  to  the  projector.  There  are  3  categories.  The  ultra  light  projectors  to  be  able  to  transport  them  without  being  a  problem;  the  conference  room  projectors  are  heavier  but  brighter  and  better;   finally,  the  fixed   installation  projection  have  a  higher  price,  on  the  other  hand  can  be  adaptable  for  a  bright  rooms  and  different  resolutions.        MAPPING  ON  LARGE  INSTALLATIONS      

When  we   have   to   do   a  mapping   on   a   large   surface,   sometimes   is   required  more   than   one  projector.  To  relate  them  and  make  the  images  not  remain  cut  by  the  change  of  projector,  we  need  to  make  a  previous  work  called  blender,  that  is,  have  25%  of  the  screen  shared  with  the  other  projector,  in  such  a  way  there  will  be  part  of  the  content  projected  by  two  devices.    

To  make  this,  we  need  a  graphic  card  that  allows  us  to  connect  the  computer  to  more  than  one  projector.  The  next  step  is  work  with  the  program,  at  the  advanced  setting  -­‐input  section-­‐  we  will  define  the  different  patterns,  and  at  the  output  section  we  will  do  the  final  adjustments  to  the  layers  to  have  a  little  part  of  the  projection  shared.  

 

2000  to  3000  

 For  an  ambient  light  and  an  audience  less  than  100.  Used  for  a  presentations   or   conferences   of   a   large   duration.   A   bit   more  expensive.    

3000  and  up  

For   big   places   and   for   different   applications   like   auditoriums,  concerts,   conferences,   nightclubs,   churches,   etc.   Usually   are  fixed   for   the   projection.   Used   for   audiences   of   200   with   an  ambient   light.   If   we   have   100   or   more   in   a   place   with   bright  lights,   we   will   use   5000   lumens   or   more.   These   types   are  expensive.  

25%  Figure  1:  Blender  

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5. Types    

5.1. Architecture              

   This   type   is   probably   one   of   the   best   known.   To   change   the   look   of   a   building   is   really  spectacular,  for  this  reason,  when  we  speak  about  mapping  we  take  as  a  reference  these  video  projections  that  leave  surprised  the  public  are  seeing  it.        Mappings  on  buildings  or  cathedrals  usually  have  a  background,  some  message  or  reason  that  bring   him   to  make   it.   For   example,   we   can   explain   the   history   of   a   city   or   about   the   same  building;  or  we  can  make  an  event  presentation  that  takes  place  in  the  same  building,  etc.    

It’s  a  way  to  meet  a  great  amount  of  people.  These  shows  are  different  as  what  we  are  used  to  see;  seeing  a  popular  building  that  changes  totally  its  look,  which  is  constructed  or  demolishes,  which  it  seems  to  open  up  and  interior  elements  turns  up,  etc.  All  of  that  is  a  call  for  society,  which  is  surprised  and  later  stands  at  the  event  till  the  end.    

All  of  that  are  needs  of  the  audiovisual  market.  The  aim  of  the  technique  is  to  stand  out  and  demonstrate   something   new   to   the   spectator   (to   be   different   of   what   is   currently   in   the  market).  

 5.2. Interactive  

 Society  wants  more   than  only   typical  mappings   on  buildings,   on  plane   surfaces,   etc.  Market  needs   more   than   this;   it   has   restlessness   and   because   of   that   we   advanced   until   find  interactive  mappings,  where  the  viewer  is  able  to  modify  the  projection  contents.    For   example,   we   can   find   video   projections   according   to   the   voice   where   the   frequency   is  synchronized  with  some  colors  and  these  will  change  into  the  screen  every  time  we  talk  with  the  exact  tone.    Moreover,   we   can   also   play   with   smartphones   or   tables   using   applications   created   for   the  mapping,  in  such  a  way  that  we  can  control  what  are  watching  and  projecting.      This  type  of  mapping  attracts  lots  of  people,  since  we  can  be  participant  and  feel  like  Vj’s  for  a  while,  and  not  only  simple  viewers.      

Figure  2:  Architecture  

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Finally  we  can  find  more  interactivity  with  devices  that  detect  our  movements  and  these  can  control   the  visual  content.  We  are  talking  about  Kinect,  an   infrared  detector  movement  that  has  the  ability  to  recognize  several  points  of  our  skeleton  and  represent  them  in  a  computer.  It  works  with   three   cameras   that   are   incorporated   in   the   same   gadget,   so  we   can   control   the  movements  or  body  positions  by  assigning  effects  to  its.  

This  device  is  used  mainly  in  systems  like  Wii,  PlayStation  or  Xbox  360  to  interact  with  games  without  the  need  of  to  connect  cables  among  the  devices.        

5.3. Audio-­‐visual  performances  

 The   interaction   also   has   an   important   task   when  we  want   to   relate   a   scenography  with   an  emotions  or  sensations.  These  types  of  video  projections  are  normally  experiments  are  done  in  order  to  explore  new  synergies  between  the  human  body  and  the  rhythm  and  light.  People   have   an   important   role   here   because  we   project   on   them  and   they   have   to   interact  with  the  visual  contents,  which  are  usually  synchronized  with  their  movements.    In   this   example   we   focused   on   the   live   contemporary   dance   performance   playing   with   the  sound  and  the  visual  effects  that  provides  senses  to  us.      

5.4. Light  painting    

 A  video  projection  provides  life  to  a  surface  typically  plain,  without  relieve  as  it  could  be  in  a  cardboard,   a  wall,   etc.   The  main   part   is   the  way   the   light   acts,   the   reflection   it   creates,   the  reliefs,  etc.  In  this  case  it  is  very  important  to  do  a  good  work  during  the  production  of  visuals,  the  effects,  animations,  light  positions...  to  achieve  a  good  result  simulating  we  are  in  front  of  a  structure  in  3D  when  it  is  only  a  plane  where  several  silhouettes  appear.  

Figure  4:  Light  painting  

Figure  3:  Audio-­‐visual  performance  

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5.5. Live  shows.  Concerts    In  this  case,  the  video  projection  helps  to  reinforce  the  sound  content  with  images  that  explain  the   song   story.   Commonly,   in   the  majority   of   concerts  we   can   find   led   screens,   which   they  already  show  the  audio-­‐visual  material  needed,  but  other  times  we  can  also  find  a  support  of  the   sound   with   video   projections;   here   is   where   we   can   play   and   integrate   mappings   to  strengthen  the  sound  and  to  interact  with  the  band  or  musicians.    

5.6. Retro  projections  

 This  are  projections  where   the  source  of   light  arrives   from  behind   the  surface   in   such  a  way  that  the  light  doesn’t  arrive  from  de  front,  as  in  the  majority  of  projections.      This   is  a  way  to  create  new  shapes,  to  be  able  to  put  elements   in  front  of  the  scene  without  remaining  illuminated.  It  can  be  useful  for  us  if  we  want  to  play  with  shadows  or  silhouettes  of  the  objects  that  are  in  front.  Light  arrives  from  the  back  so  it  will  create  a  backlighting.      This   type   of   projection   can   have   different   applications,   for   example   in   the   theatre,   as  sceneries.  In  this  case  we  also  can  play  with  the  fact  of  having  several  layers  of  sceneries  so  the  first,   the  one   that  would  be  nearest   to   the  public,   is  darker   than   the   last  one,  which  will   be  more   illuminated.  We  can  play  with   this,  making   integrations  on   the   stage  and  adding  more  elements  (visuals  or  physicals).  We  will  get  more  senses  with  the  interaction  between  the  light  and  characters.      It  is  worth  money  spending  for  theatres  because  it  represents  an  important  economical  saving.  We  avoid  having  to  buy  decoration  material  of  the  space,  in  such  a  way  that  we  don’t  have  to  change  them  manually,  like  now,  so  the  scenes  will  be  modified  only  from  computers  and  will  achieve  a  major  speed  and  effectiveness.          

Figure  5:  The  Icebook.  Retro  projection  

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6. Relevant  artists    

6.1. Antivj    They  are  a  collective  of  artists   that  runs  away  from  the  typical  vj’s.  Normally,  vj’s  have  some  more  abstract  visual  contents,  and  maybe  sometimes  without  a  story  line  that  transmits  us  the  message.  However,  Antivj  try  to  do  more  research  and  development  to  experiment  and  deliver  new  things.      Nivolas  Boritch,  producer  and  coordinator  of  Antivj,  explains  that:      

We  were  all  interested  in  getting  away  from  the  “rectangular  screen”  format,  and  to  bring   projection   into   the   real  world   around  us   to   project   onto   buildings,   structures,  transparent  materials  and  in  3D  as  well.  So  from  there,  we  wanted  to  get  together  and  focus  on  the  idea  of  “projected  light  in  space”.      In  all  the  projects  I  do,  I  play  with  visual  perception  and  I  try  to  trick  the  senses  using  optical  illusions.  I  really  like  the  idea  of  modifying  the  perception  of  things.  In  a  way,  it  is  almost  like  modifying  reality2  

 6.2. D-­‐Fuse  

 They   are   a   group   of   audio-­‐visual   artists   founded   in   London   in   the   middle   of   the   90’s   for  Michael   Faulkner.   It’s   a   group   formed  by  different   artists   that   uses   the   creative  potential   of  new  technologies  to  produce  multiscreen  performances  and  to  talk  about  social  questions  that  affect   us   everyday.   They   make   performances   related   with   photography,   mobile   media,  architecture,  TV,  experimental  documentary  cinema,  live  cinema  and  temporary  installations.      They  are  also  known  for  the  book  they  edited  in  2006:  Audio-­‐Visual  Art  and  Vj  Culture.          

6.3. VJ  Culture  (Grant  Davis).    He  is  an  award-­‐wining  VJ  ranked  among  the  top  visual  performers  worldwide.  12  years  ago  he  gave   up   working   with   deaf   children,   and   then   started   his   experience   with   a   live   VJ  environment.  He  thought  visuals  were  the  only  way  to  interpret  the  music  for  the  deaf  people.  He  has  been  working  with  a   lot  of  distinctive  dj   and  music   groups.  Moreover,  Grant   and  his  partner  Xarene  produced  and  released  the  book  and  DVD  that’s  covering  the  global  VJ  scene,  “’vE-­‐jA:  Art  and  Technology  of  Live  Audio  Video”.                                                                                                                        2(Lemercier, 2011)  

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6.4. Coldcut    

Besides  these  current  artists,  we  can  also  go  back  in  time  and  talk  about  Coldcut.  They  were  a  British  group  that  turns  up  at  80’s.  Formed  by  Matt  Black  and  Jonathan  More  they  have  been  the  precursors  of  the  music  based  on  samplers,  the  scratching  and  the  processing  of  image  and  music  in  real  time.    Later  on,  they  were  interested  in  dance  and  chill  out,  drum  and  bass,  jazz,  electronic,  hip-­‐hop  or  funky,  so  they  were  a  polyvalent  group.  In  a  way,  they  have  been  a  great  influence  for  their  predecessors.  Moreover,  Coldcut  created  his  own  vj  software,  Vjamm,  to  be  able  to  show  their  performances  in  real  time.    

Coldcut  have  been  the  icon  of  many  avant-­‐garde  and  artistic  practices  of  the  20th  century,  and  we  could  say  that  they  have  been  the  first  postmodern  mapping  artist  with  the  achievement  of  political  and  ecological  messages,  leaving  back  commercial  practices  and  the  consumerism.  

     

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7. Some  applications.  Analysis.    In   this   last   point   I   will   make   an   analysis   of   some   video   projections   that   I   have   investigated  through   Internet   and   that   I   found  more   interesting,   attempting   to   take   an   example   of   each  different   type   or   mapping   artist.   Thanks   to   this   analysis   we   will   be   able   to   have   a   more  practical  vision  of  what  I  explained  along  this  work.      I  will  analyze  how  these  are  made,  the  aim  with  which  they  were  created  and  the  function.  The  purpose  of  this  part  is  to  find  the  effects  that  mapping  brings  over  the  society,  and  how  it  can  contribute  to  the  development  of  this  technique.      

 7.1. Mappings  on  people  

   

 The  creativity  and  desires   to   innovate  has  made   that  vj’s   tried   to  map  all   types  of  elements.  Artists  have  escaped  from  the  traditional  mapping  on  buildings  or  walls  to  project  on  a  person,  managing  to  change  for  complete  the  aspect  of  him/her.      We  can  change  the  dress  of  a  person,  or  make   it  seems  a  robot  or  a  different  human,  or   for  example,  to  project  his  eyes  opened  but  having  them  closed,  etc.      The   fact   to   create   amazing   videos   is   that   people   want   to   share   it   through   Internet,   and   it  immediately   becomes   viral   by   becoming   popular   and   runs   all   on   laptops   and   computers  around  the  world.      However,   sometimes  we  will  end  up  remembering  more   the  way   it  has  been  presented  that  the  product  that  is  being  promoted.      We   need   an   actor   for   making   this   mapping   and   it   has   to   remain   still   model   and   immobile  during   the   video   projection,   because   we   need   to   square   all   the   content   with   our   actor   to  achieve  a  credible  result.  It   is  also  interesting  to  have  a  white  base  to  see  good  colors  and  be  able  to  project  any  color  and  texture.  Due  to  that  it  is  a  common  thing  to  paint  the  actor  with  a  white  color  to  achieve  a  perfect  result  (body  painting  usually).        

Figure  6:  Mapping  over  a  people  

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 7.2. Black  line  

 

 When  we  project  on  an  inanimate  surface,  this  already  has  its  own  relief,  in  which  we  will  play  to  project  and  change  with   the  help  of   the   light  and   the   images.  A   technique  we  can  use   to  highlight  even  more  all   the  elements   is   to  draw   lines   tracing  the  contours  of  the   image  we’ll  project.   It’s   a   technique   that   adds  depth   and   volume   to   a   flat   visual   and   can   create   a   lot   of  visual  effects  without  having  any  surface  with  relief.      It’s  a  good  way  if  we  want  to  save  money  and  resources  and  to  make  a  different  mapping,  only  using   a   flat   object   and   our   imagination.   However,   previously   we   have   to   prepare   our   set  exactly  in  3D  to  project  it  on  the  wall  or  our  surface  and  paint  it.      Antivj  created  this  show,   inspired  on  the   Icelandic  volcano  that  erupted  two  years  ago  and  a  lot  of  flights  in  Europe  got  cancelled.      

7.3. Mappings  on  a  Building    

 A  mapping  on  a  building   it’s   the  most  common  nowadays.  As   in   the  majority  of  mappings,   it  consists  on  giving  movement  to  an  element  that  is  static.  We  can  create  optical  effects  as  if  the  building  was   falling  down  or   in  construction,  or  as   if   there  were  people   inside,  etc.  All   these  effects  only  happen  by  playing  with  the  animations  and  light  and  creating  true  works  of  art.      We   can   create   video   mapping   on   all   what   we   want:   a   cathedral,   smaller   church,   a   town  council,   some   emblematic   building,   or   a   simple   house.   However,   obviously,   it’ll   be   more  complicated   if   there   is   more   relief   in   the   buildings,   smaller   corners   that   we   will   have   to  represent  digitally  for  afterwards  being  able  to  project  on  the  building  with  precision.    

Figure  8:  Cathedral  of  Santiago  de  Compostela  

Figure  7:  Eyjafjallajökull  (Black  line  example)  

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 Normally,  we  make  a  3D  model  of   the  building  to  make  this   type  of  mapping.  Thanks  to  this  model,  it  is  easier  to  work  and  we  can  create  the  animations  at  home,  without  the  need  to  be  in   front   of   the   building.   In   these   cases  we   can   also   remove   an   image   scanned   (explained   at  point  4.1),  which  will  save  us  work  and  time.      This   example   corresponds   to   a   mapping   made   by   vjspain   at   the   cathedral   of   Santiago   de  Compostela.        

7.4. Mapping  on  a  show.  “Com  va  la  vida”.  

 It  is  an  example  of  integration  of  a  mapping  into  a  show.  We  can  change  a  typical  scene  to  add  more  interactivity.  It’s  based  on  images  that  are  changing  according  to  the  interview  topic.  In  this  case  we  are  analysing  an  interview  of  two  people.  It’s  about  different  topics,  so  they  have  to  have  a  lot  of  visual  content  to  find  the  appropriate  in  every  one.      That’s  good  because  of  we  achieve  more  depth  in  the  subjects  of  conversation.  They  want  to  get  a  visual  image  to  relate  it  with  the  content  of  the  interview.    I   find   that   it   is   a   very   useful   format   and   can   be   used   in   the   future   in   order   to   change   the  traditional  format  that  we  are  used  to  see,  where  the  background  remains  static.    The   creation   and   assembly   of   the   mapping   have   been   take   part   by   “Welovecode”   and  “Tigrelab”      

Figure  9:  “Com  vala  vida”    

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 7.5. The  V  Motion  Project.  Interactive  mapping.  Kinect.  

 This   is   an   example   of   how  we   can   use   the  kinect   to  make   a   spectacular   show  with   a   video  projection.  In  this  case,  the  artist  wanted  to  turn  motion  into  music  only  by  using  a  technically  modified   (more  powerful)  kinect  and  an  audio  software.  The  Kinect   is   located   in   front  of   the  screening  and  controls  the  movements  of  the  boy.      This  practice,  as  Custom  Logic  says  (the  idea’s  creators),  was  not  easy  since  there  was  a  delay  between  hitting  a  virtual  key  of  the  projection  by  body  movement  and  hearing  the  sound,  so  they   had   to   find   another   solution   like   using   two   computers   and   a   different   software.   They  explained   that,   in   this   case,   “the   skeleton   based   audio   control   system”   so   “the   distance  between  the  hands   turns  one  dial   in  Ableton  Live,  and   the  angle  of   rotation  controls  another  one”.      What  they  wanted  to  make  with  this  show  was  that  people  who  were  watching  the  projection  could   see   at   the   moment   that   the   boy   was   creating   the   music   himself   instantly   with   his  movements.  They  had  to  explain  this  concept  clearly,  only  using  a  visual  language,  because  of  that  they  need  to  use  an  awesome  visual  content  projected.      People   attending   the  performance  were   surprised  because   it’s   not   a   common   thing,   by   that  moment   in   time,   to   see   someone  dancing   in   front  of   a  wall   and,   at   the   same   time,   creating  sound  and  modifying  visual  content  that  is  projected  there.              

Figure  10:  V  Motion  Project  

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8. Conclusion    In   the   last   years   technology   has   evolved   in   a   vertiginous   way,   every   day   new   devices,   new  software,  new  updates  appear  that  makes  the  mapping  technique  develop  and  creates  things  that  at  the  beginning  were  unimaginable.      We  couldn’t   think  at   the  beginning  of  cinema  that  we  would  synchronize   the  audio  with   the  image;   that  we   could  be   the  attendants  of   creating  an  audio-­‐visual  product   straightaway,   at  live;   that  we  would  project  on  an   important  or   religious  building,   transforming   it;  or   that  we  could   project   on   us,   on   people,   being   able   to   change   the   aspect   and   bring   different  perspectives.  In  short,  to  change  the  form  people  see  and  understand  the  art.      A  new  audio-­‐visual   style  has  been  created.   It   is   tied   to   the   traditional   form  with   the  culture,  with   the   society,   which   needed   changes   of   the   products   presentations,   shows   or   any   other  event  that  can  be  accompanied  with  video  projection.      Making  this  work  has  helped  me  to  understand  this  entire  world  much  better.   I  only  knew  a  small   part,   what   is   seen   from   the   outside,   from   videos,   reading   online   forums,   talking  with  people  or   looking  at   Internet.   So   far  at   the  beginning  of   this  essay,   I  hadn’t   investigated   the  origins   and   the   effects   it   could   have   over   the   society,   more   than   the   simple   boom   of   that  technique.      It’s  a  work  that  reaffirmed  me  that  a  product  can  be  very  simple  visually,  but  the  making  of  can  be  a  very  long  work  that  the  viewer  hasn’t  appreciated  if  you  do  not  know  about  this  world.  Behind   the   video  projections   there   is   a  big   community  of   people,   bigger   than  we   think,   and  that  it  evolves  day  by  day,  experimenting,  satisfying  needs,  restlessness  and  doubts  that  helps  us  to  improve  until  achieving  sufficient  maturity  to  create  shows  as  those  that  we  have  been  able  see  in  the  last  section  of  this  dissertation.      On  the  other  hand,  we  have  seen  that  with  a  few  resources  we  can  create  a  great  variety  of  video  projections  and  not  only  in  those  that  we  are  more  familiarized.  Currently,  it  has  already  gone  beyond  and  we  can  modify  the  physical  structure  of  what  we  put  behind,  creating  visual  effects   painting   the   relief   of   some   of   the   elements   that  we’ll   project   there   in   order   to   give  more  depth,  or  basically  being  us  who  modify  the  visual  contents  of  what  we  see.      It’s   clear   then   that  we  have   to   follow  this  way.  Everyday   this  community   is  bigger  and  every  time  people  will  get  more  used  to  these  types  of  projections,  in  such  a  way  that  it  won’t  be  an  innovation  or  a  discovery  of  a  technique.  In  the  next  years  we  will  be  surprised  ourselves  with  other  shows  than  nowadays  we  can’t  imagine.      It   is   an   increasing   world,   in   development   and   evolution.   So,   it   will   be   necessary   to   see,  investigate  and  experience  what  it  puts  in  front  of  us  to  satisfy  the  society  needs  that  is  tired  of  the   conventionalism.   Give   a   few   years   to   this   technique   and  we  will   discover   the   future   of  mapping      

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 9. Bibliography    Books    

• Pérez,  Blanca  Regina  y  Bustamante  Yábar.  El  Vj  y  la  creación  audiovisual  performativa.  Tesis.  Madrid:  Universidad  Rey  Juan  Carlos,  2010.  

• Faulkner,  Michael.  VJ:  Audio-­‐Visual  Art  and  VJ  Culture.  London:  D-­‐Fuse.  Lawrence  King,  2006.  

   Videography    

• Tigrelab.  Vimeo.  2011.  <https://vimeo.com/35460189>.  • Samsung.  Youtube  .  2012.  

<http://www.youtube.com/watch?feature=player_embedded&v=9wBxf-­‐NIbbI>.  

• Festival,  Mapping.  Vimeo.  2011.  <https://vimeo.com/35343291>.  • Lemercier,  Joanie.  “Vimeo.”  2011.  Eyjafjallajökull.  

<https://vimeo.com/32811205#at=0>.    Webgraphy    

• Resolume.  Resolume  VJ  software.  <www.resolume.com>.  • Spain,  Clubbing.  Clubbing  Spain.  

<http://www.clubbingspain.com/artistas/uk/d-­‐fuse.html>.  • Spain,  VJ.  VJ  Spain.  <www.vjspain.com>.  • Madmapper.  Madmapper  -­‐  The  video  mapping  software.  

<www.madmapper.com>.  • MacGuire,  Davy  and  Kristin.  The  Icebook.  2010.  

<http://www.theicebook.com/The_Icebook.html>.  • Logic,  Custom.  V  Motion  Project.  2012.  <www.custom-­‐logic.com/blog/v-­‐

motion-­‐project-­‐the-­‐instrument/>.  • GarageCUB.  Modul  8.  <www.modul8.ch>.  • around,  Mapping.  Categories  and  mapping  artists.  

<http://www.mappingaround.com/>.  • AntiVJ.  Anti  VJ  Blog.  <www.blog.antivj.com>.  • About  projectors.  <http://www.abbysguide.com/projector/>.  

   Others  Course  of  mapping.  MadCenter.  Barcelona.  September  2012.  Course