11/04/2009

Instructions for Scanning for Full-dome projection

First, here are the links to Lance's tutorial on full-dome image making and to the scanning template:


Lance's website with the fulldome link:
http://webspace.ringling.edu/~lfjones/


The fulldome page:
http://webspace.ringling.edu/~lfjones/fulldome/index.html


The new template page:
http://webspace.ringling.edu/~lfjones/fd_templates/fd_templates.html


Here is Lance's step by step review of the Scanning Process:


Assuming that the work is in an 8" diameter circle:
(this is easier if you scan from within Photoshop using "File/Import/Scanner")


• to start:
o in Photoshop: open the "Basic 4k Dome Master" image ("template_4096.psd")
o drag the window out a bit larger than the canvas (the scanned image will be larger (approx. 4800x4800) and you will need to get to the corners of it)
o in Photoshop: go to "Photoshop/Preferences/General"
o set the Image Interpolation to: "Bicubic Sharper (best for reduction)" and click "OK"
o if you are scanning from Photoshop go to "File/Import/Scanner"
o set the scanner resolution to "600 dpi".
• repeat for each work:
o place the work on the scanner and preview
o drag out the marque (crop marks) to encompass the circle as tightly as possible
o scan
o if you are scanning from Photoshop the image will open in Photoshop - otherwise open the image in Photoshop
o rotate the image to the correct orientation using: "Image/Rotate Canvas/180º, 90º CW, or 90º CCW"
o drag the scanned image onto the template image
o with the scanned layer selected go to "Edit/Transform/Scale"
o grab the upper left corner of the scan layer and snap it into the upper left corner of the template
o grab the lower right corner of the scan layer and snap it into the lower right corner of the template
o double-click inside the layer to accept the transform
o drag the black mask layer to the top of the layer stack
o save the image as an uncompressed 32 bit Targa file (named as: name1.tga, name2.tga, etc)
o delete the scanned layer so that you can re-use the template
o if you are scanning from Photoshop go to "File/Import/Scanner"




Let me know if any of this is not clear.


- Lance

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