Adding/using dither/ GradFun3 to VirtualDub2

[stormy1777]

So, Hello_Hello, in this thread:

https://forum.doom9.org/showthread.p...27#post1858027

suggested to use GradFun3 to try and improve an encode from another thread

It seems to not be there by default:

---------------------------
VirtualDub Error
---------------------------
Avisynth open failure:
Script error: there is no function named "GradFun3"
(L:\Open_Filter_test.avs, line 4)
---------------------------
OK   
---------------------------

picked up latest dither from here:

http://ldesoras.free.fr/prod.html#src_ditheravsi

any chance someone knows how to "install" or "use" this, within VirtualDub2 ?

Inside are 2 dlls in win32/win64, as well as top level avsi scripts, but no clear indication how to "put this in the path" or have VD2 load them on startup or via a script?

I do have other AVS scripts that work fine... this thing looks different than a plugin or an external encoder, so not sure where/how to use it

Stormy.