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[Bug 679512] Re: Enblend fails from Hugin, works from cmd line

 

I also duplicated this error.  My system is also windows 7 64-bit, though i'm not sure that makes a difference, since i resolved this by using a script to remove the quotes " that hugin is adding to the values of TEMP and TMP environment variables.
I suspect the windows api calls in enblend.exe to retrieve value of TEMP folder don't tolerate quotes in the path.

WORKAROUND:

create a script in your C:\Program Files (x86)\Hugin\bin called
"enblend.cmd" with the contents:

if defined TEMP set TEMP=%TEMP:"=%
if defined TMP set TMP=%TMP:"=%
"%~dp0\enblend.exe" %*

(you might have to open notepad with "run as administrator" rights to
modify/create files in program files under windows 7).

then change the preferences in hugin to choose the  "C:\Program Files (x86)\Hugin\bin\enblend.cmd" instead of the enblend.exe.
(under File, preferences, "stitching" tab, "use alternative enblend program")

Maybe the resolution will be to change hugin not to add the quotes?  Be
curious if this workaround works consistently for everyone else...

I'm new to trying hugin but have unsuccessful at creating a stitched
.exr hdr type panorama.. still trying... I resorted to 32 bit hugin
because i was having issues with 64-bit not creating any HDR exr output
either...

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https://bugs.launchpad.net/bugs/679512

Title:
  Enblend fails from Hugin, works from cmd line

Status in Hugin - Panorama Tools GUI:
  Fix Released

Bug description:
  This bug has actually been reported a number of times, but closed out
  because people assumed it was simply a problem of not enough disk
  space. I have a case that proves this is not the case... and have
  added some information that will hopefully help diagnose the real
  problem.

  My bottom line: Enblend works from command prompt, not from Hugin, and
  I suspect the issue is that Hugin may not be properly setting
  environment variables before launching Enblend.

  ERROR SEEN (during stitching, when directly run by Hugin):
  enblend: info: loading next image: pLTRR0000.tif 1/1
  enblend: info: loading next image: pLTRR0001.tif 1/1

  enblend: an exception occured
  enblend: enblend: unable to create image swap file name.

  enblend: info: remove invalid output image "pLTRR.tif"
  make: *** [pLTRR.tif] Error 1

  HOWEVER: there is no error if the exact command listed in the Hugin
  window is run from command line!

  i.e., I copy the command, open a command prompt, go to the project folder....
           f:
           cd \photos\pLTRR

  ...and paste in the enblend command:
  "C:/apps/photo/Hugin/bin/enblend" --compression LZW -w -f12764x5389 -o "pLTRR.tif" "pLTRR0000.tif" "pLTRR0001.tif" "pLTRR0002.tif" "pLTRR0003.tif" "pLTRR0004.tif" "pLTRR0005.tif" "pLTRR0006.tif" "pLTRR0007.tif" "pLTRR0008.tif" "pLTRR0009.tif" "pLTRR0010.tif" "pLTRR0011.tif" "pLTRR0012.tif" "pLTRR0013.tif" "pLTRR0014.tif" "pLTRR0015.tif" "pLTRR0016.tif" "pLTRR0017.tif" "pLTRR0018.tif" "pLTRR0019.tif" "pLTRR0020.tif" "pLTRR0021.tif" "pLTRR0022.tif" "pLTRR0023.tif" "pLTRR0024.tif" "pLTRR0025.tif" "pLTRR0026.tif" "pLTRR0027.tif" "pLTRR0028.tif" "pLTRR0029.tif" "pLTRR0030.tif" "pLTRR0031.tif" "pLTRR0032.tif" "pLTRR0033.tif" "pLTRR0034.tif" "pLTRR0035.tif" "pLTRR0036.tif" "pLTRR0037.tif" "pLTRR0038.tif" "pLTRR0039.tif" "pLTRR0040.tif" "pLTRR0041.tif" "pLTRR0042.tif" 

  ENVIRONMENT
  WinXP SP3, Hugin 2010.1.0.5161 built by Zoran
  C: drive does NOT have enough space
  F: drive has plenty of space (30+GB free)
  Project is on F:; 
  TMP and TEMP vars point to f:\temp\WinTmp
  Hugin temp setting points to f:\temp\HuginTmp

  SI FILEMON MONITOR LOG shows...
  From the command prompt, Enblend uses F:\temp\WinTmp as it should.
  From within Hugin, Enblend dies without attempting to create a temp file at all!

  THE BIG QUESTION
  What is different between calling Enblend from the command prompt vs from Hugin?

  My strong suspicion: Hugin improperly sets environment variables
  before launching Enblend

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