Various rendering choices? -- Challenge!

Anssi

A first quick one with ArtLantis. 20 seconds.

Anssi

TaffGoch

I smell a render challenge....
Frigging cool model, curious how it was made.

Your wish is granted...

I included hidden layers in the model, to demonstrate the development of the sinusoidal "Follow me" path. The methods are conceptually simple, and radial symmetries permit copies of components, so it's not as complex as it first appears.

BTW, you may consider yourself challenged....

-Taff

TaffGoch

@gaieus said:

There are some other, interesting layers in there...

Indeed! Extreme "lensing" magnification, by that orb.

Nice resultant caustics, too.

-Taff

KarinaGM

@unknownuser said:

The material uses thin film interference for color and fairly simple studio with HDR.

You mean you used thin film and nothing else?
well, that HDRI must be a good one.

boofredlay

Twilight Render. Progressive, 175 passes.
Iridescent Coated Aluminum material, two spot lights.

solo

It must be a guy thing... we love rendering balls.

boofredlay

And mine is blue.

Gaieus

Ah, nice trick indeed. MLT is "best" when there is (are) enough light(s). In some really shady areas it can get clear really slowly.

TaffGoch

Gai,

I liked your iridescent render enough to give it a try, using Kerkythea, Metals_Ashikhmin_MLT, rainbow_metal_02, (M)etropolis(L)ight(T)ransfer (for a couple of hours):

Actually, I only used the resultant iridescent colors, saturated and layered, in Photoshop, to "colorize" a greyscale version of my original gold render. (Much faster than waiting for a long MLT render.)

[ My new wallpaper! ]

-Taff

boofredlay

Here is another angle.

olishea

like this one A LOT!!

Gaieus

@olishea said:

like this one A LOT!!

+1

boofredlay

Thanks.

TaffGoch

Boof,

Can you dish out some details?

(I'm still learning materials, but need to move on to depth-of-field, etc.)

-Taff

Rich O Brien

Thanks for sharing the settings Eric

This is a great learning thread, much appreciated.

boofredlay

Sure. That last one was a metal texture in the Twilight Library called Aluminum NK. Part of the NK Metals.

The rendering was an overnight shot, 10 hours I think, using a progressive setting called Metropolis Light Transport (BPT).

All I did was open your model, click the face with the material eyedropper. Found the Aluminum NK and applied it. I then set the camera focal point inside the sphere and set the camera F number to 8.
Finally I set the render size and progressive setting then hit render and went to bed. That simple.

Edit. Oops I forgot. I placed 3 spot lights in the scene as well. One to the left, one to the right and one below. Each was a separate color. And I set the background color to black.

TaffGoch

Indeed, thanks for the settings.

I'm testing a render, right now, using f/5.6, focused just beneath the "surface" of the sphere. This will be my first fray into camera settings, so I'm still a newbie (even though I used to do this sort of stuff with POV, 15-years ago.)

It looks like the Twilight interface makes things a bit easier (rather than just using KT.)

Thanks again,
Taff

notareal

btw if you are looking thin film interference like effect for KT, you can find a procedural texture, mIridescent, in Procedural Textures by Chris Hegarty (Windows).

Gaieus

BTW Taff, a little OT but as far as I remember, this was also one of your models:

Of which I made this simple render first:

then this one with a glass dome:

(This was for a help forum discussion as far as I remember although the OP never came back)

TaffGoch

@gaieus said:

"BTW Taff, a little OT but as far as I remember, this was also one of your models..."

Gai,
I recall that discussion, and those images you posted. I probably didn't join in, since I've only recently started rendering (again.)

From my past experience with POV, I already knew that rendering is addictive. I was too busy with other projects, and couldn't justify time spent rendering. (Actually, the spouse is of the opinion that I don't have time for SU or KT.)

I started thinking of rendering again, only after completing the "weave" geodesic ball in SU. I knew that, with all those curves and crossovers, it would make a nice subject for reflective materials, lighting and depth-of-field studies. (Participants have demonstrated that to be the case.)

@notareal said:

"btw if you are looking thin film interference like effect for KT, you can find a procedural texture, mIridescent, in Procedural Textures by Chris Hegarty (Windows)"

Thanks, notareal. I've downloaded "procedurals.zip" (and, also, "Iridescent Glass.mat.zip") from the KT forum, and will check out their iridescent render results.

-Taff