There is a type of DPX file which contains Academy Printing Density. The 16-bit version of this type of DPX file has a maximum value of 65,535 and it is intended to contain "super-whites" well in excess of 1.0. I am trying to figure out how to write an importer which will produce a 32-bit floating point HDR image in After Effects when it imports one of these files. Is there a place in the importer function calls where I can generate floating point pixels from the 16-bit pixels in the file? If not is there any other way I can import these files properly? Or should I just write an effect plug-in that can convert a 16-bit image that the user knows to contain ADX values into a proper floating point image. (I am beginning to suspect this is the only viable path.)
I have decided that the most promising way to approach this issue is with an effects plug-in to convert floating point pixel values after the DPX file has been imported. I am also adding conversions to and from Academy Printing Density and Academy Color Encoding Specification values.
If anyone else on this forum has any interest in using After Effect in a workflow for working with scanned film images or ACES data from digital cameras, I'd love to hear from you and brainstorm about the overall workflow.
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