leakage & splotches

[sea2stars]

*grin* Jealous. That many buckets must be a thing of beauty.

[3DMK]

*grin* Jealous. That many buckets must be a thing of beauty.

yes....but a machine is nothing without the knowledge of the operator!

[fraggle]

yes....but a machine is nothing without the knowledge of the operator!

Absolutly, I'm pretty sure, you guys, can achieve 10 time faster with a 10 years old computer what i manage to do with this one!

[3DMK]

Absolutly, I'm pretty sure, you guys, can achieve 10 time faster with a 10 years old computer what i manage to do with this one!

Hahaha....true
But I can also assure you since i do not have a 24 core machine that I am jealous too...lol

[Neilg]

Render the irradiance map & LC seperately at 1200px wide or so and set the irmap preset to high 90, 45.
Use a plugin like vray material control to turn reflections off all materials for this pass. Turn them back on for the final render.

Having reflections off will brighten up the room a little, but if you render to float you can pull this back down easily enough. It's by far the quickest and best quality you can get though.
BF is a nightmare on interiors.

[Morne]

Avoid lighting the entire room just with vray light mat objects for example and use a few IES or vray lights with high subdivions (or both). Poorly lit rooms are always more splotchy.

In my case almost every project I worked on for the past 6 months was like this. Lit only by couple of VRLightMtl's. Its a mission to get low render times and clean renders. Hmmm actually its impossible. Even with pushing up the subdivs on the vraylightmtl to 128, still gives splotches and speckles

[king_max]

I would rise the min/max IRR rate to -3,0 (or even -3,1), and lower the HSph. subdiv back to 30. Rise the DMC image sampler to 3,7 (and lower the thresh. to 0,003). Make sure you ticked "retrace threshold" under LC (It really helps a lot). This should really clean up the render. (at the expense of render time obviously)

[fAEkE]

I would try and render the scene without IES.

But I guess the issue is solved since it was a while ago he posted.