Re: [Nuke-users] F_Regrain unreliable on render farm?

2013-08-09 Thread Schneider, Abraham
Hi there! Got this here as well. Solution is quite easy: just add a FrameHold node before the Grain input of F_Regrain, so every frame grabs the grain from the same source image. But yes, something like the Lock Noise Analysis button in the Denoise node would also be very helpful in the

Re: [Nuke-users] F_Regrain unreliable on render farm?

2013-08-09 Thread Howard Jones
...@beingfrank.info To: nuke-users@support.thefoundry.co.uk Sent: Friday, 9 August 2013, 4:20 Subject: Re: [Nuke-users] F_Regrain unreliable on render farm? thanks guys. yes, that's how I have been generating grain plates, but I found I got better results using F_Regrain live - when and if it works

[Nuke-users] F_Regrain unreliable on render farm?

2013-08-08 Thread Frank Rueter
Hi all, this is reported but was wondering if I'm the only one who finds F_Regrain close to unusable in a render farm environment? It's all dandy as long as you render locally, but as soon as you have multiple machines render a script with F_Regrain in it, some of the frame batches are all

Re: [Nuke-users] F_Regrain unreliable on render farm?

2013-08-08 Thread John Mangia
I always put a frame hold after the plate going into the grain sample and it is reliable on a render farm. Without the frame hold it will sample every frame or batch I think. John Mangia Sent from my iPad On Aug 8, 2013, at 10:48 PM, Frank Rueter fr...@beingfrank.info wrote: Hi all,

Re: [Nuke-users] F_Regrain unreliable on render farm?

2013-08-08 Thread Ben Dickson
I've always found the F_Regrain unreliable, for various reasons: * it used to redo the analysis on each frame when on the farm, so you had to HoldFrame the grain-src input. This may have been fixed, but I still do this out of paranoia * sometimes, the grain seed seems to change - e.g when

Re: [Nuke-users] F_Regrain unreliable on render farm?

2013-08-08 Thread Frank Rueter
thanks guys. yes, that's how I have been generating grain plates, but I found I got better results using F_Regrain live - when and if it works. cheers, frank On 09/08/13 15:12, Ben Dickson wrote: I've always found the F_Regrain unreliable, for various reasons: * it used to redo the

Re: [Nuke-users] F_Regrain unreliable on render farm?

2013-08-08 Thread Ben Dickson
I think you lose the F_Regrain's grain response stuff. Not used it recently, but I seem to recall getting almost exact matches if I multiplied the prerendered-grain plate by specific values.. If not I guess it either does some clever magic with the response curve, or just applies the grain

Re: [Nuke-users] F_Regrain unreliable on render farm?

2013-08-08 Thread Frank Rueter
yup, been playing with multiplying it to match the live output better and I'm getting there, at least close enough. The response can always be fudged with some luma keys ;) Certainly better than the headache F_Regrain causes. Cheers, frank On 09/08/13 15:34, Ben Dickson wrote: I think you