splitpoint

If I understand your question correctly I would just write the scene out to IFD files and render those. Your main machine would calculate the particles once and then you can render on however many machines you need.

Hmm. Check that your camera matches the resolution and aspect ratio of your plate. I've seen a mismatch where the camera defaulted to 640x480 instead of the real resolution/aspect ratio. Depending on the motion of your camera it can look like the movement is off when your focal length or aspect ratio is really off.

Without the plate or the boujou export it's pretty tough for me narrow it down much more than that.

Good luck!

It's been years since I've worked with Boujou tracking data but I seem to remember having an issue with frame offset where boujou's track was off by 1 frame. You can try padding your playback using the following in the roto file field:

/filename`padzero(3, $F+1)`.tga

Substitute your path to the background image and the filename prefix for filename. Sub your file extension for tga. “3” is the number of digits in your frame numbering extension. “$F+1” tells Houdini to play the image back 1 frame early so in this example Houdini's frame 2 will match up to filename001.tga. Make sense?