Aliasing issues

[Lewis]

Hi!

Is there a way/function how we could avoid jaggy (aliased) edges on bright surfaces (reflections on a car and bright black body materials) in Octane rendering?

I tried to cover it by adding some bloom and glare but no luck it's still very visible.

Thanks

[prodviz]

Those look like overbright values (so values over 1).

You can pull these areas back in, in compositing apps, but it'd be cool to have a clipping/burn/shoulder type function in Octane itself.

[juanjgon]

Perhaps you can also try use lower power emitters and add more exposure time or ISO in the scene. I am not sure if this could help.

-Juanjo

[Lewis]

Yes they are certainly over 1 (HDRI) but in LW native there is option called "limit dynamic range" which deals with that problem nicely. I hoped there is way to do it in octane somehow also.

thanks i+ll try lower value plus more exposure although i'm pretty high there also already .

[Lewis]

Ok i dialed back black-body material for ceiling lights (it was 5.0 now it's 1.0), added bit more exposure and adjusted gamma but i still see same jaggy edges on lamps and reflections.

Hmm, what elee is there to try ?

[juanjgon]

Ok i dialed back black-body material for ceiling lights (it was 5.0 now it's 1.0), added bit more exposure and adjusted gamma but i still see same jaggy edges on lamps and reflections.

Hmm, what elee is there to try ?

All the scene looks a bit crisp. Perhaps you could add a bit of DOF effect, or change the "filter size" parameter (for example to 2.0) in the kernel to try to add more antialiasing to the scene.

-Juanjo

[BorisGoreta]

Render at double resolution and scale down.

[3dworks]

try the free OLMSmoother plugin - works really well in such cases.

http://www.olm.co.jp/rd/technology/tools/?lang=en

cheers

markus