So looking through glass is often problematic because it takes lots of time to pass GI rays through. And you pretty much HAVE to have GI on in order to see inside anything. And putting a little bit of emissive something inside there? Well, now you have fireflies to contend with.
A good workaround in Vray is an override material. I'm wondering if there's some similar workaround.
With an override, you are still working with physical materials (although you don't Have to), but you're telling different aspects to do different things. One trick for stainless is to override reflections and refractions with a copy of the material that doesn't have the texture. As long as it's not a clear reflection/refraction, there's no need to see any of that texture, which means, the computer doesn't have to calculate all that complication.
The same goes for GI. If you have a clear material with a bit of roughness to it? Well, that's quite a bit of time. Override that with a material that has no need for refracting at all. GI just passes through.
Clear objects really shouldn't be casting shadows unless you are Also calculating caustics. So might as well let us cheat it by having GI and shadows ignore the object.
I don't think Keyshot allows for that, but I'm asking here first to see if I just don't know about some secret More advanced material. I'm trying to do a bunch of large realistic renders in keyshot (which I'd like to keep coming our way), but I keep having to do lots of workarounds in order to complete them. Too many workarounds would means going over on time, or possibly not even finishing on time. Well, that's not ok obviously. I'd really like to deliver keyshot files back to them also, as an added bonus for working with me, but can only do that if I do the work in keyshot. lol
Anyone know some good tricks for that? I've got some tests going to see what kind of timing works out, but right now it looks like brute force samples at 128 might win. I think some interior quality might be ok by disabling GI cache, but I may also have to increase the quality to 2, then the time goes through the Roof.
I didn't notice a few things until I rendered it out at 7K. So now I'm going back and filling in with a bunch of region renders and photoshop masks.
