Drawing  Problems  -  Chapter  1  Drawing  Problems  -  Chapter  19  528  AutoCAD  and  Its  Applications—Advanced  Copyright  Goodheart-Willcox  Co.,  Inc.  4.  Architectural  Using  the  same  drawing  from  Problem  19-3,  you  will  add  a  custom  background  to  the  render  environment.  A.  Open  drawing  P19-3  and  save  it  as  P19-4.  B.  Locate  an  image  that  you  want  to  use  as  a  background  for  the  scene.  C.  Using  the  Render  Environment  &  Exposure  palette,  experiment  again  with  the  different  image  based  lighting  environments.  This  time,  however,  pay  atten-  tion  only  to  the  lighting  and  try  to  match  it  to  the  image  you  selected.  D.  Select  the  Use  Custom  Background  setting  in  the  Render  Environment  &  Exposure  palette  and  pick  the  Background…  button  to  specify  your  image  as  the  background.  E.  Once  the  image  is  selected,  you  can  adjust  it  as  described  in  Chapter  18  in  the  Adding  a  Background  section.  F.  Adjust  the  Exposure:  and  White  Balance:  settings  in  the  Render  Environment  &  Exposure  palette  as  appropriate.  G.  Render  the  scene  and  save  the  image  to  a  file  named  P19-4.jpg.  H.  Save  the  drawing.  A  full-color  image  is  provided  on  the  companion  website.  www.g-wlearning.com/CAD/