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Rite of Passage
Comments: 3
bullit35744

18.04.2024, 08:40

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Mirrorball in Ashtray

Mirrorball in Ashtray
Description:	The main object is from the object library and was modified. The brightness of the mirrorball was adjusted by tuning the values for transparency, reflection and refraction. The pastel colours for the partly transparent and partly reflecting ground plane with a techno bump were arrived at by using white fog and black haze. Lit by my OilyRainbow HDRI (artwork by David Brinnen) at the default orientation, quality 64, intensity 22, effect 80 at linear 100. Shadows are set to 100% and the soft option engaged. Rendered premium with 16 rays and soft shadows, which took only 4 hours.
Added by:	Horo
Keywords:	davidbrinnen, oilyrainbow, mirrorball, ashtray
Date:	11.11.2007 15:17
Hits:	3437
Downloads:	76
Rating:	5.00 (1 Vote(s))
File size:	255.7 KB

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davidbrinnen
Admin

Join Date: 01.03.2004
Comments: 2224

The overall effect is quite pleasingly retro. Although, I don't feel that reflective materials get the best from HDR lighting in terms of their geometry, when the background is reflected in one or two metalic items the effect is convincing, but if the scene is largely reflective the light casting properties of the IBL are somewhat redundant since most of the scene will end up being comprised of reflection rather than diffuse. In that, reflection is, in my view, harder to interpret as a 3D shape than something "described" by shadows. That is not to say that there is a right and wrong way to go about this, just that I feel your scene demonstrates this in that the inner geometry around the sphere is difficult to assess becaues of the reflectiveness of the material whereas, I imagine, if it were a matt mat lit with the HDR it would make more "3D" sense. Nice piece, interesting effects and I particularly like the way the bumpy ground has responded to the light.

11.12.2007 19:59

spektyr
Member

Join Date: 07.02.2005
Comments: 1010

I love the coloring! The inside of the ash tray looks like oir on water. Great gradient effect! The swirl effect on the outside faces is pretty cool too. :-)

11.12.2007 23:45

spektyr
Member

Join Date: 07.02.2005
Comments: 1010

Typo! lol

I meant 'oil on water'. LOL

11.12.2007 23:51

gat
Member

Join Date: 12.21.2006
Comments: 667

I likes it, its original. The way colors flow off of the object gives a nice mood.

11.13.2007 20:08

rashadcarter1
Admin

Join Date: 06.04.2006
Comments: 2610

Ever been to Australia? I was there many years ago and I no longer remember how to spell it but there is a very beautiful seashell called pauwa, or something like it. This piece reminds me of an ashtray made with that material. Far out as it seems there are actually real objects that have this appearance. I agree with all above comments, nice work. I am curious about the transparency, I'm not certain I understand what transparency has to do with this render. Perhaps you might clarify for me, unless it's clear and I'm just an idiot. I guess I'm wondering if it is actually necessary to engage transparency for this render? Either way it was a fast render so no issues there.

11.14.2007 05:38

Horo
Admin

Join Date: 05.26.2004
Comments: 4721

David - I see what you mean. Interesting observation that will have to be followed up by experiments.

Rashad - The transparency on the ground plain will help to get some light bleeding up from below and thus also softening the shadows. As for transparency on the sphere, I think it helps absorbing surplus light. In fact, refraction has no effect. I'm going to send you test renders by email of just the sphere and it will become obvious to you. The effect/result came as a surprise to me, too.

All - thanks for your kind comments. I'm still gathering experience what IBL can do.

11.14.2007 17:30

rashadcarter1
Admin

Join Date: 06.04.2006
Comments: 2610

After looking at your e-mail I can see your point very clearly. I think it is as you say, the transparency helps spell out the model shape. Interesting find, especially because it did not become a render nightmare. If the scene had been more complex with lots of structures set with transparency.

11.14.2007 19:00

Horo
Admin

Join Date: 05.26.2004
Comments: 4721

Thanks for looking at it so swiftly, Rashad. I do care a lot of what you say. I did forget to mention that the example with transparency rendered in 134 seconds and the one without in 14, a difference of almost 10-fold.

11.14.2007 21:11

tina gazcon
Member

Join Date: 08.07.2006
Comments: 254

Wow!

I love it Horo. The colors are surperb. It almost reminds me of carnival glass. Truely beautiful. 5/5

11.17.2007 23:30

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