SMDegrain questions

1. As an example, If I just use SMDegrain(prefilter=2) will it automatically implement RefineMotion=true and contrasharp=true in the "background" or should I add them to my line of code if I want them enabled?

prefilter=2 only sets the prefilter, it doesn't set other options.
Code:
    pref    = !GlobalR ? preclip ?                  pref                                                                                                                                                     : \
                                  (prefilter==-1) ? pref                                                                                                                                                     : \
                                  (prefilter== 0) ? !isInter ? pref.ex_sbr(1, Y=Lum,UV=Chr) : pref.ex_boxblur(0.3,0,"weighted",Lum,Chr)                                                                      : \
                                  (prefilter== 1) ?            pref.ex_MinBlur(1,Chr,isInter ? """ex_Median(mode="horizontal" ,Y=y,UV=uv)""" : "median",Y=Lum)                                               : \
                                  (prefilter== 2) ?            pref.ex_MinBlur(2,Chr,isInter ? """ex_Median(mode="horizontalS",Y=y,UV=uv)""" : "median",Y=Lum)                                               : \
                                  (prefilter== 3) ? !isInter ? pref.ex_Median(mode="IQMV" ,Y=Lum,UV=Chr) : pref.ex_Median(mode="IQM",Y=Lum,UV=Chr)                                                           : \
                                  (prefilter== 4) ?            pref.ex_Median(mode="IQMST",Y=Lum,UV=Chr, thres=255).ex_sbr(3,Y=Lum,UV=Chr)                                                                   : \
                                  (prefilter== 5) ? ex_merge(DFTTest(pref,sstring="0.0:4.0 0.2:9.0 1.0:15.0",tbsize=1,Y=Lum==3,U=chroma,V=chroma,dither=1,threads=1,sbsize=12,sosize=6,swin=2),pref,           \
                                                               pref.ex_lut(Format("range_max range_max {Lthres} ymin - / x ymin - * -"),UV=1,clamp_float=true),         Y=Lum,UV=Chr,luma=chroma)            : \
                                  (prefilter== 6) ?            pref.ex_KNLMeansCL(a=2,s=2,d=1,h=7.0,wmode=1,chroma=chroma,gpuid=max(0,gpuid),LFR=600*(nw/1920.)).ex_sbr(Y=Lum,UV=Chr)                        : \
                                  (prefilter== 7) ?            pref.ex_DGDenoise(str=Luma?0.10:0,strc=chroma?0.05:0,LFR=nw/2.,UV=Chr).                           ex_sbr(Y=Lum,UV=Chr)                        : \
                                  (prefilter== 8) ?            pref.ex_BM3D(TS?max(10,thSAD/30.):10,1,TS&&thSAD>550?"noisy":"normal",UV=Chr,gpuid=gpuid,tv_range=!fsp)                                       : \
                                                    Assert(false, "SMDegrain: 'Prefilter' didn't find a matching preset: "+string(prefilter))                                                                : \
                                   pref
source: https://github.com/Dogway/Avisynth-Scripts/blob/master/SMDegrain/SMDegrain.avsi
If you want other options to be set, you need to configure those.

2. I downloaded a custom 64bit version of MeGUI as I don't think there's an official 64bit build but is there anything else I need to do to take advantage of my new 64bit plugins?

No, clue haven't used MeGUI for ages (at least 12 years).

About different SMDegrain versions resulting in different results:
That should be normal, looking at the changelog over at https://raw.githack.com/Dogway/Avisynth-Scripts/master/SMDegrain/SMDegrain.html
Quite a few things changed since 3.3.5d, including a lot of changes in the defaults and gernal handling.

v4.7.0d (03-01-2025)

Fix Prefilter 1 and 2 for interlaced inputs.
Fix Globals Output in multi mode (don't remember the corner case)
Fix broken BFF interlace handling (Thanks JohnstonJ)

v4.6.0d (30-03-2024)

ex_DGDenoise(), updated to new v254 DGDenoise() arguments.
ex_BM3D(), 'preset' is now case insensitive.
ex_Luma_Rebuild(), fix logic for 'lo' and 'hi'. Still need to fix when HBD.
Changed the parser for Globals Out in multi mode.
Removed an unneded check for Globals Out in non-multi mode.

v4.5.0d (12-07-2023)

Match global variable names to those of QTGMC
Fix check of vector vars when doing vector output

v4.4.0d (16-05-2023)

Change back default for 'limit'
Add better example for DGHDRtoSDR() prefiltering.
Documentation updates.

v4.3.0d (01-04-2023)

Construct vector variables in a for loop
Fix 'mode', 'mfilter' and 'LFR' when isMult (tr > 6)
Swizzle in unprocessed planes to MFilter clip when the option is used

v4.2.0d (27-03-2023)

Fix ex_DGDenoise() when processing chroma
Limit prefilter=6 (KNLMeansCL) gpuid to 0 minimum
Optimization. Reuse Mavg var conversion to YUV
Optimization. Engulf CClip code block into !GlobalO logic
Optimization. Add 'luma' arg, for chroma only MV, or luma denoise with chroma only MVs
Logic cleanup for isInter in show code block

v4.1.0d (09-03-2023)

Remove all references to RGB since it isn't supported by MVTools2
Pass LFR through the motion mask to further mask out DCT flicker (even when DCTFlicker=false, when true mask is stronger)
Replace prefilter=4 (FluxSmoothST) with "IQMST", suited for very grainy live action HD sources
Update documentation

v4.0.0d (02-03-2023)

YUY2 support for all clip type arguments via internal planar conversion (CClip, mfilter, prefilter and input)
Direct interlaced support for all 'mode' filters and clip type arguments (CClip, mfilter, prefilter and input)
Update handling of interlaced content. Bugfix + Performance + Code optimization
Update chroma shift for UHDHalf to use Catmull-Rom instead of slower spline16
Allow string types for 'prefilter' argument to define the preset
Replace GaussT5 with TemporalGauss 'mode' and add TemporalSmooth mode (IDW weightings)
Reparametrize thSCD1, DCTR and scaleCSAD for TS (Temporal___) modes (regression fix)
Add 'mode' to show panel
Allow recursion for all 'mode's except TemporalSoften
Optimizations for chroma only denoising
Add 'threads' arg for when CPU nnedi3 (pel>1, subpixel=4 and gpuid=-1)
ex_retinex() - Fixed highlights=false for lvl=1 and lvl=2
ex_retinex() - Fixed range conversion for all 'lvl' modes
ex_BM3D() - Fix range string format when converting to other formats
ex_DGDenoise() - Update chroma subsampling kernel to 'Didee' instead of slower spline36
Finished Documentation

v3.6.0d (06-02-2023)

ex_Luma_Rebuild - Add 'lo' and 'hi' args for optional normalization
Some typos and cosmetics

v3.5.9d (18-01-2023)

Better field parity detection for interlaced clips
Frame property assignments for interlaced clips

v3.5.8d (16-01-2023)

Support back YUY2 via internal YV16 conversion
Add IQMV as prefilter=3 and tune ex_FluxSmoothST() (prefilter=4)
Optimize ex_BM3D() and ex_DGDenoise() format revert, and support Y clips
Support Y clips when show=true

v3.5.7d (02-12-2022)

Fix logic for nnedi3 pixel center shift (subpixel=4)
Fix Globals output (Globals=3)
Fix super_render pelclip being set to nop() when reading Globals

v3.5.6d (30-11-2022)

Fix pixel center shift deviation in nnedi3 (subpixel=4) for high pel
Swap prefilter 6 and 7 order for more coherence
Tweak mode="dfttest" internal 'tmode' arg to work with odd 'tr'

v3.5.5d (20-09-2022)

Add 'DFTTest' as mode
Update Documentation (WIP)
Cosmetics

v3.5.4d (02-08-2022)

Replaced NNEDI3CL() with nnedi3wrap() so you can switch to CPU or GPU nnedi3 via 'gpuid' arg
Since ResizersPack is now mandatory, nmod() was used where appropiate
Fixed dimension references when UHDHalf is used
Changed Str=1 to go directly to ConvertBits()
Fixed 'show' panel for UHD and increased curve precision in 'show'
ex_retinex() - Fixed normalization in HBD for lvl=3
ex_retinex() - Expanded mask terminator

v3.5.3d (08-07-2022)

Replace nnedi3 calls (CPU based) with NNEDI3CL (GPU) when subpixel=4

v3.5.2d (28-06-2022)

ex_luma_rebuild() - Add RGB support
ex_retinex() - Support for single channel clips
ex_retinex() - Argument to disable highlight compression

v3.5.1d (01-06-2022)

Update function definitions
Rename 'device_id' arg to 'gpuid'
Allow CPU processing for prefilters via gpuid=-1
Update UHD downscale coefficients
'Str=1.0' is inclusive for ex_luma_rebuild() (only does a range conversion)
ex_retinex() - Default UV to 3, for when used as stand-alone
ex_retinex() - Add proper greyscale conversion
ex_BM3D() - Add 'gpuid' argument
ex_KNLMeansCL() - Change 'device_id' to 'gpuid'

v3.5.0d (17-04-2022)

Change 'search' and 'thSCD1' Defaults
ex_Luma_Rebuild() - Add 'tv_out' and 'bits' args
ex_retinex() - Change pmax to not thresholded max for lvl=3

v3.4.9d (01-04-2022)

Tweak some defaults; searchr, DCTR, pelsearch, plevel, pglobal, searchparam and searchparamr
Force input to frame based also for pel > 2
Fix pelclip height for interlaced sources
Retrieve prefilter '_ColorRange' instead of using input's
Use lvl=3 for ex_retinex() prefiltering if '_SceneRange' is present
ex_retinex() - Add 'tv_out' arg when output is not for prefiltering use cases
ex_retinex() - Add 'lvl=3' mode, will use scene based accumulated min and max stats

v3.4.8d (09-03-2022)

Rebase to latest ExTools
Rebase to latest LSFPlus
Fine tune function definitions
ex_luma_rebuild() - Add selective propCopy and update 'Str' and 'c' defaults
ex_KNLMeansCL - Add 'DCT' arg and add propCopy
ex_KNLMeansCL/ex_DGDenoise - Default 'DCT' to true

v3.4.7d (15-02-2022)

Adjust defaults for internal ex_luma_rebuild()
Subpixel=3 (now Default) is blackmanresize(taps=8), nnedi3 is now subpixel=4
Fine tuned prefiltering settings and ex_BM3D() uses CUDA back again
ex_BM3D() - Add 'preset' arg and add additional arguments to BM3D_CUDA and BM3D_CPU calls
ex_DGDenoise() - Add LFR and DCT args
ex_KNLMeansCL() - Turn 'LFR' to float and rebase with ex_LFR()

v3.4.6d (08-02-2022)

Fix typo in ex_KNLMeansCL()
Reimplement back ex_KNLMeansCL() as prefilter=5
Shift ex_DGDenoise() to prefilter=7
Add post-blur to prefilter=5 and prefilter=7
Default prefilter=6 (ex_BM3D) to CPU mode (CUDA is bugged)

v3.4.5d (08-02-2022)

ex_DGDEnoise() - New GPU based denoiser wrapper
ex_KNLMeansCL() - Add 'wref' arg and limit 's' to 8
Replace ex_KNLMeansCL() with ex_DGDenoise() as prefilter=5
Optimize 'thSADR' and 'thSADC' Defaults
LSFmod() - Change 'smode' to 4 for HD
ex_Luma_Rebuild() - Fix 'show' setting
ex_retinex() - frameprops passthrough
ex_BM3D() - Add better matrix detection for the format conversions
ex_BM3D() - Default chroma sigma to 1 when not used otherwise garbage output

v3.4.4d (28-01-2022)

Add 'IQMT' as degrain mode
Add range arg to nnedi3
Rebase LSFmod to latest version

v3.4.3d (23-01-2022)

Removed 'trymany' and 'divide' arguments
Changed a few defaults; revert 'overlap', tune 'sharp', 'rfilter' and scaleCSAD
Add a low frequency sharpened prefilter when LFR is enabled
Optimize/simplify ex_KNLMeansCL() 'LFR' algorithm
Add a stronger LFR for ex_KNLMeansCL prefilter
Fix issue when subpixel=3 was used (limit 'sharp' to 2 in MSuper)
ex_minblur()/ex_sbr() - Fixed last call clip order to properly inherit frameprops

v3.4.2d (10-01-2022)

Add function definitions
Fix for ex_luma_rebuild() plot

v3.4.1d (08-01-2022)

Default overlap to blksize/4 when refinemotion is used. (Slight +detail retention when motion and +performance)
Rebase to latest ExTools. Affected 'fulls' args in prefilter=0 and prefilter=4
ex_luma_rebuild() - Add 'show' argument to show curve plot

v3.4.0d (14-12-2021)

Rebase to latest ExTools
Fix for default LFR value on UHD clips
Optimized tv to pc luma range for HBD inputs and Str=0

v3.3.9d (03-12-2021)

Recursion for MDegrain
Defaults when input is single plane or plane=0
Clean Asserts and allow blksize of 24
Prefilter UHD clips in its halved version (if UHDHalf=true, default)
New prefilter=3 for ex_FluxSmoothST(), following modes are shifted up in number
Fix super_render when reading Globals
ex_Luma_Rebuild() use internal scale_inputs when tv_range=false (faster) + ditch 'fulls'
ex_retinex() use internal scale_inputs when tv_range=false (faster) + ditch 'fulls'
ex_retinex() replace old YPlaneMin/Max with PlaneMinMaxStats
ex_BM3D() switch 'fulls' arg with 'tv_range'
ex_BM3D() new arg 'OPP' to filter in OPP space as originally intended

v3.3.8d (14-11-2021)

Optimize nnedi3 for subpixel=3
Rename srfilter to rfilter
Final tweaks to DCTFlicker

v3.3.7d (13-11-2021)

ex_MinBlur() 'th' arg.
Add 'smart2' and 'smart3' modes
Use 8-bit for subpixel=3.

v3.3.6d (12-11-2021)

Remove 'fulls' arg, now it's derived from frameprops or overriden by tv_range arg
Fill in appropiate values for 'fulld'
Increase blksize limit to 64
Improve DCTFlicker filtering
Default DCTFlicker to false

Cu Selur

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