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Old 8th March 2023, 12:29   #15  |  Link
anton_foy
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Join Date: Dec 2005
Location: Sweden
Posts: 702
Quote:
Originally Posted by DTL View Post
Some important note for multi-generation MVs refinement: The thSAD for MDegrain need to be significantly reduced after 1st generation of MAnalyse using first generation of MDegrain output. Because SAD of mostly cleaned 'current' block with input noised block become about 2time lower. So thSAD for intermediate generations and last output MDegrain need to be reduced to about 0.5 of initial.

So better multi-generation MVs refinement is some like:
Code:
init_thSAD=400

s1=MSuper()
mv1 = MAnalyse(s1)
dg1 = MDegrain(s1, mv1, thSAD=init_thSAD)

1stgen_thSAD = (int)(init_thSAD/1.8) # divisor - subject to Zopti refine ?

s2=MSuper(dg1)
mv2 = MAnalyse(s2, SuperCurrent=s1) # or (s1, SuperCurrent=s2) - may be not visible difference
dg2=MDegrain(s1, mv2, thSAD=1stgen_thSAD)
Also it was found enabling trymany=true in MAnalyse while good refining zero MVs also may add some significantly bad MVs. So it is planned to add flags for predictors used in trymany mode to skip possibly bad predictors and to make performance visibly better.
Love those updates! Seems logical with lowering the thSad in the next step. Does this work using DX12 me?
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