Slit Scan / Time Shift Effect File Read Please Help

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Hello,

I'm attempting to create the slitscan/timeshift effect.

I'm creating a vector array in a for loop, each loop has an attrib from map and a wrangle that appends Cd to a vector array. It works when the attrib from map is always reading from the same file. When I change the attrib from map file read expression to anything that has to do with $F or the meta nodes iteration Houdini crashes.

I have a test scene that has documentation and even nodes setup to create test frames to work with.

If it is a matter of the way that multiple files cannot be read at once please let me know. If someone knows of a better way to read from multiple files at once and/or achieve this effect please let me know.

I'm aware that after effects has this effect and uses gradients to determine which frame to look up color from. While that method is great, I'd like to be able to write the gradients/lookups in vex to achieve results.

Any help greatly appreciated.

Attachments:
concept_025_slitScan_v001.hiplc (236.7 KB)

Tighe Rzankowski

vimeo.com/trzanko

trzankofx@gmail.com
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Thanks Matt! Using a solver to append the Color to the array per Frame and then timeshifting to the end does the trick! Thanks for the help.

Going to have to find a way to optimize this method as it is very memory intensive.
Tighe Rzankowski

vimeo.com/trzanko

trzankofx@gmail.com
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