tile index

[nap]

Hi,

does anybody know how to change the tile index without recreating an Ifd? Is there any commandline arguments or python filtering for mantra?

Thanks

nap

[crin]

I think I've got this working.  each tile index has it's own mantra rop so they are separate processes on our farm.

 

1. Generate ifds

2. Change mantra command parm to say "mantra -P '[path to script] --index 0 --xtiles 4 --ytiles 2' " on every rop, changing the index number appropriately.

 

 

here's the script

import sys, mantra,re, math, optparse

def filterCamera():
  #arguements
  parser = optparse.OptionParser()
  parser.add_option("-i", "--index", help="tile index")
  parser.add_option("-x", "--xtiles", help="number of x tiles")
  parser.add_option("-y", "--ytiles", help="number of y tiles")
  (options, args) = parser.parse_args()
  tile_count_x=int(options.xtiles)
  tile_count_y=int(options.ytiles)
  tileindex = int(options.index)
  print "filtering ifd"
  #update tile index-----------------------------------------------------------------
  res =mantra.property('image:resolution')

  if tile_count_x * tile_count_y > 1:
    tile_res_x= res[0]/tile_count_x
    tile_res_y= res[1]/tile_count_y
    tile_idx_y = int(tileindex/tile_count_x)
    tile_idx_x =  int(tileindex%tile_count_x)
    pc = [
	math.ceil(tile_idx_x * tile_res_x),
	min(math.ceil((tile_idx_x+1.0) * tile_res_x) - 1, res[0]-1),
	math.ceil(tile_idx_y * tile_res_y),
	min(math.ceil((tile_idx_y+1.0) * tile_res_y) - 1, res[1]-1)  ]
    mantra.setproperty('image:pixelcrop', pc)

    #updatefilename--------------------------------------------------------------------
    rendername = mantra.property('image:filename')
    nrn = re.split("_tile\d{2}_", rendername[0])
    filename = nrn[0]+"_tile"+str(tileindex).zfill(2)+"_"+nrn[1]
    mantra.setproperty('image:filename', filename)