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A Makers “Ark” bottle featuring a waxy cap and some displacement for the stamp and the bottom crystals. There is also a bump map for increased detail on the glass itself. I used the standalone version for rendering, and did some postproduction in PS afterwards. Rendertime is overnight on a GTX 970, reaching 82000 samples with Path Tracing and 0.4 Coherent ratio. The side view I cooked for an hour with some noise reduction and hotpixel removal.

One thing I have noticed with Octane, is that noise clearance doesn't seem to be equally refined. As in IE Maxwell, you are more or less guaranteed to have a clean image at a certain SL, Octane seems to vary a lot more. At least with glass, and glass in contact with glossy surfaces it seems to be an issue. Could be me not being experienced enough to know how to deal with it, though it feels a little annoying. I do however like the final results are nicer than the Maxwell counterpart. Especially around the edges of the glass.

Anyway, I love working with Octane, and hope to see lots of cool features in the future

Front

Side

At least with glass, and glass in contact with glossy surfaces it seems to be an issue.

Great render. Did you experiment with Ray Epsilon to get the contact areas right? I suspect for your scene you would need a very low Ray Epsilon.

Paul

No, haven't really ever touched that feature. I'll definitely go ahead and check it out to see what it can do for my scenes! Thank you

Also, do you believe PMC could yield an advantage over Path Tracing for images like this although the S/Pix is slower?

do you believe PMC could yield an advantage over Path Tracing for images like this although the S/Pix is slower?

I'm not sure - sorry. One of the advantages of Path Tracing is that it has "Coherent Ratio", which can provide a good "final render" speed boost.

Paul

glass looks great, label looks a little thick and funky.

Care to show a lighting setup? I do lots of bottle renders and I am never able to get those bright gold caustic highlights you have showing up in your base. Never was able to with maxwell and never have been able to in octane either.

itsallgoode9 wrote:glass looks great, label looks a little thick and funky.
Care to show a lighting setup?

Yeah, I agree the labels is perhaps a little too thick although the real bottles also have quite robust labels if I may say so.

As for the light setup it is pretty basic.


There is a back-top light to create the illumination and reflection in the bottom of the bottle. Two sidelights to create a nice rim and reflect in the bottom left and right of the bottle. Then there is a frontlight to create reflections on the waxy bit and illuminate the label. There is also a low intensity HDRI in there in order to throw in those natural reflections that often appear in a room. I also left the alpha map option on in order to composite in a black background in photoshop, rather than it being some blurry HDRI. I use this light-setup for most of my bottle and glass renders, although when I require a white background, I usually move the back-top light down a notch so it illuminates the liquid perfectly.

Hope it's helpful

Thanks for posting that. Nothing too much different than I usually setup...are those bright gold caustic highlights from the HDR environment you put in or from that top back light? Adding in the subtle HDRI is a good idea. I've pondered doing that but never have actually gotten around to trying it; after seeing your results, i'll give it a try.

Some of it is definitely from the HDRI, as it had quite a lot of bright hotspots in it. The general refraction of the liquid however, is from the back light.