Difference between revisions of "Focal Stacks"
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Requirements for OBJ files for CalVR to display: | Requirements for OBJ files for CalVR to display: | ||
| − | * Material library file needs to be specified with | + | * Material library file needs to be specified with extension, e.g.: <tt>mtllib coral-mtl.mtl</tt>. |
* To use a texture image (image map) use the command <tt>usemtl</tt>, not <tt>usemap</tt>. Example: <tt>usemtl coral-material</tt>. This is for material file coral-mtl.mtl, which has the following content: | * To use a texture image (image map) use the command <tt>usemtl</tt>, not <tt>usemap</tt>. Example: <tt>usemtl coral-material</tt>. This is for material file coral-mtl.mtl, which has the following content: | ||
<pre> | <pre> | ||
| Line 10: | Line 10: | ||
</pre> | </pre> | ||
* The image referenced by the material file in this example is <tt>coral-map.jpg</tt>. | * The image referenced by the material file in this example is <tt>coral-map.jpg</tt>. | ||
| + | * If the image is upside down, flip it with the following ImageMagick command: | ||
| + | <pre> | ||
| + | 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> | ||
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`' ';'
