December 15, 2012, 05:57:56 pm
.MP4 (.h264 codec) is used for final output only, never for output which still has to be edited.
Sounds like your client wants you to render a uncompressed format 1st.
I recommend you use a image sequence of .png since its a lossless format and compatible
to Quicktime (.Mov). In case your client also wants you to save Alpha information you will still have to render this out as a separate sequence from Lumion.
Lumion2 Ultimate might be an issue here too of course