Chaos Corona Forum

Chaos Corona for 3ds Max => [Max] Feature Requests => [Max] Resolved Feature Requests => Topic started by: Utroll on 2014-02-16, 13:00:55

Title: burnt pixels suppression in post settings
Post by: Utroll on 2014-02-16, 13:00:55

I know it won't be the most needed feature ever but I've been recently playing with Nox render, very similar to maxwell, and there's a feature to automatically spot and kill fireflies from render VFB post panel. That feature with a slider to fade the effect might be usefull.

All in all I was not convinced by Nox (unstable, tried three times, crashed three times) but the VFB is very promising and sexy.

Title: Re: burnt pixels suppression in post settings
Post by: Ondra on 2014-02-16, 13:06:38

there is already the highlight compression parameter for that

Title: Re: burnt pixels suppression in post settings
Post by: Juraj on 2014-02-16, 17:21:08

Quote from: Keymaster on 2014-02-16, 13:06:38

there is already the highlight compression parameter for that

It's not the same, he's asking for what is rather "speckle removal" tool. I have to say NOX does indeed has some interesting features in frame-buffer, but I wasn't otherwise interested in even trying it.

Title: Re: burnt pixels suppression in post settings
Post by: Utroll on 2014-02-16, 19:04:14

well it's not bad but it's not fast neither, it's 95% maxwell aka slow but pretty, and not stable (on my machine at least).
Anyway that was just wondering as most 'beginners' with corona post about fireflies, or when you've launch a big render and notice after 24h that you you have some, it could be convenient to fake/solve it quickly rather than relaunch render or stamp stamp stamp with image editing softw.

Title: Re: burnt pixels suppression in post settings
Post by: jaco graaff on 2014-03-10, 22:27:59

Are you discussing the burnt-out white pixels on reflective areas??

My example
(http://sja.com.au/uploads/Corona_Cam001_0155_FIREFLIES_EXAMPLE.jpg)

I am looking for this  "highlight compression" feature in v .5 but cannot find the field for it...

Vray has a "Max ray intensity" setting to supress fireflies

Any solution?

Title: Re: burnt pixels suppression in post settings
Post by: Utroll on 2014-03-11, 00:21:12

you'll find what you're looking for in render settings  : MSI = max sample intensity (put it down) and lower in the post tab you'll find contrast / highlight comp / ... you can tweak them during rendering, or even after (doesn't work after render in VFB+ though)

I was more talking about a automatic stamp feature,  not really 3d related, but usefull in your exact case : go  on fancy postprod without the boring cosmetic step nor relaunching.