Difference between revisions of "Focal Stacks"

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(OBJ Files)
(OBJ Files)
 
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<pre>
 
<pre>
 
   convert sourceimage.jpg -flip destimage.jpg
 
   convert sourceimage.jpg -flip destimage.jpg
 +
</pre>
 +
* Here's a script that converts Helicon Focus's OBJ files to CalVR's OBJ format:
 +
<pre>
 +
#!/bin/bash
 +
#
 +
# Syntax:  <scriptname> <obj_file_name.obj>
 +
# Example: conv2calvr.sh FS_010.obj
 +
#
 +
chmod 660 *
 +
sed s/usemap/usemtl/ $1 -i
 +
sed s/map.jpg/coral-material/ $1 -i
 +
sed '/map_Kd/ i\newmtl coral-material' $1.mtl -i
 +
convert $1.jpg -flip $1.jpg
 +
</pre>
 +
* To run the script on all OBJ files in a time series:
 +
** Put the above script (<tt>conv2calvr.sh</tt>) in the directory just above the directories for the time series and call the following shell script:
 +
<pre>
 +
#!/bin/bash
 +
find . -type d -exec sh -c 'cd {} && echo `../conv2calvr.sh *.obj`' ';'
 
</pre>
 
</pre>

Latest revision as of 12:44, 23 May 2013

OBJ Files

Requirements for OBJ files for CalVR to display:

  • Material library file needs to be specified with extension, e.g.: mtllib coral-mtl.mtl.
  • To use a texture image (image map) use the command usemtl, not usemap. Example: usemtl coral-material. This is for material file coral-mtl.mtl, which has the following content:
  newmtl coral-material
  map_Kd coral-map.jpg
  • The image referenced by the material file in this example is coral-map.jpg.
  • If the image is upside down, flip it with the following ImageMagick command:
  convert sourceimage.jpg -flip destimage.jpg
  • Here's a script that converts Helicon Focus's OBJ files to CalVR's OBJ format:
#!/bin/bash
#
# Syntax:  <scriptname> <obj_file_name.obj>
# Example: conv2calvr.sh FS_010.obj
#
chmod 660 *
sed s/usemap/usemtl/ $1 -i
sed s/map.jpg/coral-material/ $1 -i
sed '/map_Kd/ i\newmtl coral-material' $1.mtl -i
convert $1.jpg -flip $1.jpg
  • To run the script on all OBJ files in a time series:
    • Put the above script (conv2calvr.sh) in the directory just above the directories for the time series and call the following shell script:
#!/bin/bash
find . -type d -exec sh -c 'cd {} && echo `../conv2calvr.sh *.obj`' ';'