#//////////////////////////////////////////////////////////////////////
#//////////////////////////////////////////////////////////////////////
#//////////////////////////////////////////////////////////////////////

#  Default file format is zb_png. Then a picture produced by using the
# tools::sg offscreen zbuffer, and put in a png file with the tools::fpng png
# file writer.

#  Default file name is:
#   g4tsg_offscreen_[format]_[index].[suffix]
# with:
# - index: starting at one and incremented at each file production.
# - format:
#     zb_png: tools::sg offscreen zbuffer put in a png file.
#     zb_jpeg: tools::sg offscreen zbuffer put in a jpeg file.
#     zb_ps: tools::sg offscreen zbuffer put in a PostScript file.
#     gl2ps_eps: gl2ps producing eps
#     gl2ps_ps:  gl2ps producing ps
#     gl2ps_pdf: gl2ps producing pdf
#     gl2ps_svg: gl2ps producing svg
#     gl2ps_tex: gl2ps producing tex
#     gl2ps_pgf: gl2ps producing pgf
# - suffix: according to the choosen file format: eps, ps, pdf, svg, tex, pgf, png, jpeg.

#  You can change the file name with:
#   /vis/tsg/offscreen/set/file <file name>
#  You can change the automatic file name construction with:
#   /vis/tsg/offscreen/set/file auto <prefix> <true|false to reset the index>

#  Default picture size, in pixels, is the one given when doing a:
#   /vis/open TSG_OFFSCREEN [width]x[height]
# for example:
#   /vis/open TSG_OFFSCREEN 1200x1200
# or by taking the default G4/vis viewer size (600x600):
#   /vis/open TSG_OFFSCREEN

#  About the picture size, note that the gl2ps files will grow with the number of primitives
# (gl2ps does not have a zbuffer logic). The "zb" files will not grow with the number of
# primitives, but with the size of the viewer. It should be preferred for scenes with
# a lot of objects to render. With zb, to have a better rendering, do not hesitate to
# have a large viewer size.

#  About transparency, the zb formats handle it. The gl2ps formats don't, in this case you can use:
#   /vis/tsg/offscreen/set/transparency false
# to not draw the transparent objects.

#//////////////////////////////////////////////////////////////////////
#//////////////////////////////////////////////////////////////////////
#//////////////////////////////////////////////////////////////////////
#  Below is a sequence to produce files at the various formats
# (execute vis.mac first to have some scene to visualize).
#  Note that a TSG offscreen viewer is not an "auto refresh" one, then
# to produce a picture, you have to do:
#   /vis/viewer/rebuild
# (a /vis/viewer/refresh or flush may not be sufficient, for example with plotting).

/vis/verbose confirmations

/vis/open TSG_OFFSCREEN
/vis/viewer/rebuild  # to produce the default g4tsg_offscreen_zb_png_1.png file.
/run/beamOn 10
/vis/viewer/rebuild  # to produce g4tsg_offscreen_zb_png_2.png file.

/vis/tsg/offscreen/set/file auto B5_ true  #true is to reset the index.
/vis/viewer/rebuild  # to produce B5_1.png file.
/run/beamOn 10
/vis/viewer/rebuild  # to produce B5_2.png file.

/vis/tsg/offscreen/set/format zb_png
/vis/tsg/offscreen/set/file B5_zb.png
/vis/viewer/rebuild

/vis/tsg/offscreen/set/format zb_jpeg
/vis/tsg/offscreen/set/file B5_zb.jpeg
/vis/viewer/rebuild

/vis/tsg/offscreen/set/format gl2ps_ps
/vis/tsg/offscreen/set/file B5_gl2ps.ps
/vis/viewer/rebuild

# gl2ps does not handle transparency, it could
# be usefull to not draw the transparent objects:
/vis/tsg/offscreen/set/transparency false
/vis/tsg/offscreen/set/file B5_no_transparency_gl2ps.ps
/vis/viewer/rebuild
/vis/tsg/offscreen/set/transparency true

# change picture size:
/vis/tsg/offscreen/set/size 2000 1500
/vis/tsg/offscreen/set/format zb_jpeg
/vis/tsg/offscreen/set/file B5_2000_1500_zb.jpeg
/vis/viewer/rebuild

# return to the "/vis/open" (/vis/viewer/create in fact) picture size:
/vis/tsg/offscreen/set/size 0 0

/vis/tsg/offscreen/set/format zb_jpeg
/vis/tsg/offscreen/set/file B5_600_600_zb.jpeg
/vis/viewer/rebuild

/vis/verbose warnings