Talk:Environment Variables
From VFXPedia
Can we get a list of which formats use the FUSION_NO_OVERLAPPED_IO and FUSION_IO_BLOCK_SIZE? So we know, based on what footage we are working with, what is worth tweaking?--Chad 14:26, 31 October 2007 (Central Daylight Time)
Those env vars work with most formats, except the ones that require external libraries (including Maya IFF, FITS, OpenEXR, AVI and QuickTime). These libraries do their own I/O.
You can use the following line in the console to list the ones that do work:
for i,reg in fu:GetRegList(CT_ImageFormat) do a = reg:GetAttrs(); if a.REGB_MediaFormat_WantsIOClass then print(a.REGS_Name) end end
Unfortunately, a bug in Fusion 5.2 and earlier means that only one is currently listed --Daniel