reducing noise in interior scenes

[sparky]

Guys

I have quite grainy internal base images at the mo. In my rQMC the noise threshold is at 0.01 Is this the best parameter to play about with to reduce the 'noise' throughout the image. I have some blotchy areas also......any ideas...My render time for the base scene at the mo is about 4 mins and dont really want to go higher than 7 mins per frame if I can help it?

Cheers

Sparky

[percydaman]

a ss of your rendersettings and even an image of what your noise and splotches are would be helpful.

[sparky]

no probs, here's the image, you'll notice the areas of noise.

a ss of your rendersettings and even an image of what your noise and splotches are would be helpful.

[/img]

[percydaman]

looks like noisy area lights would be my guess. try raising their subdivisions. Also if your using a fairly high quality irradiance map, try storing the lights with the irradiance map, that will definitely get rid of noise, but you might start to see some splotches depending on other settings. I'd recommend some searching of the forum, as this is a common issue.

[Clifton Santiago]

Try raising your Global subdivs multiplier to about 8

[sparky]

How do you store the lights with the irradiance map? and would this dramatically increase the render time?

looks like noisy area lights would be my guess. try raising their subdivisions. Also if your using a fairly high quality irradiance map, try storing the lights with the irradiance map, that will definitely get rid of noise, but you might start to see some splotches depending on other settings. I'd recommend some searching of the forum, as this is a common issue.

[sparky]

on the 'quasi monte carlo GI' panel??? or elsewhere?

Try raising your Global subdivs multiplier to about 8

[ene.xis]

tick "store with irradiance map" in the vraylight rollout

[sparky]

on what part of the rollout??

tick "store with irradiance map" in the vraylight rollout

[sparky]

Got it.....will this dramaticallly increase the render time?

tick "store with irradiance map" in the vraylight rollout

[Clifton Santiago]

The global subdivs multiplier is in the rQMC Sampler rollout. Try setting it to about 4, re-render and see if it helps the noise. If so, try turning it to 8 and see if it eliminates all noise.

[ene.xis]

tick "store with irradiance map" in the vraylight rollout

[sparky]

cheers....

tick "store with irradiance map" in the vraylight rollout

[ene.xis]

[sparky]

Yeh, I have this at 10

The global subdivs multiplier is in the rQMC Sampler rollout. Try setting it to about 4, re-render and see if it helps the noise. If so, try turning it to 8 and see if it eliminates all noise.