DOF Noise

[vmedium]

I'm blindly turning knobs getting acquainted with Octane in Cinema. I've got a pretty decent result, but would love to get rid of the noise in my DOF. You can see my kernel settings in the top left.



Thanks for any help, Octane has been awesome so far!

[vmedium]

I tried turning up the filter, which helped a little, but too high and it was blurry, just like help said. Settled on about 2.0 - I cranked the samples up all the way to 5096, but still got a decent amount of noise in the DOF. Are there any other settings that will affect this?

[slepy8]

1. Double the images dimensions.
2. Lower the amount of maxsamples to 500-600 (test the good value comparing outcome)
3. set filtersize at 1.

After Rendering throw it into Photoshop, denoise, downscale image to desired dimensions.

It should be way lot better, while keeping the same render time.

Show your result

[glimpse]

simply render 2x or even 4x =) for about the same amount of time & then rescale =) play with hot pixel removal, filter size, caustic blur..- & You be good to go =)

[MoGrafik]

Interesting that this has just come up, I've run into exactly the same problem. I was playing around to try to remove the noise last night. I actually found I got a less noisy, and nicer result by changing over from Direct Lighting Diffuse to PMC Kernel. I small amount of caustic blur, with a hot pixel removal set to around 0.3 on the camera tag got me a good result.
Not sure if this is of any use to you, but it helped me get things back on track!
Thom

[vmedium]

So this is my result from last night. I haven't had a chance to implement the suggestions that you guys have mentioned. I just cranked up the samples, and then I used Neat Video's noise reduction tool, and magic bullet looks to finish off the look and get a little more chromic abb, glow, star, and curves.


Things I'll try tonight (for my own reference later)
1) Double Dimensions
2) Lower max samples to 500-600
3) Set filter size to 1
4) Neat video noise removal (I do this in AE not PS because I want to animate eventually)
5) Look up caustic blur
6) Try PMC Kernel instead of Direct Lighting Diffuse

Thanks for all your help!

[SephirothNP]

[MoGrafik]

Hey, if you could please post what works for you after you've given all that a try, I'd be grateful! I'm having trouble here too! PMC is helping, but the sharp areas are rendered noiseless a long time before the DOF areas. Seems ridiculous to have it render the whole image just to clean up a tiny area that's out of focus. I guess that unbiased rendering though, right?

[vmedium]

@MoGrafik - I'll do that. Hopefully get to it tonight, but might not be till tomorrow.

[glimpse]

So this is my result from last night.

that's a beautiful outcome, Vmedium!