Kerkythea render

not registered yet

Nice render, how long did it take?
As far as render times, I dont know about kerkythea but anytime you do refraction (which is the bending of light as it goes across an object, it will takes a long time to calculate. The bigger the object is in frame the more time it is going to consume. One thing you can do, and I dont know if Kerky lets you do this, is to control the amount of bounces the rays will take as it goes thru the glass. sometimes 5 or 6 bounces is enough. See if you can control the bounce, that will help you reduce rendering time.

[stuckon3d]

not registered yet

hey stuckon3d, geez I don't know exactly how long, but I'm thinking about an hour. I actually ate lunch and returned to see it at 90%. I will look around for "bounce" I haven't seen that acual word but the "glass" used has the following settings:

refraction: index of refraction, and dispersion

bevel mapping: smoothing angle

there are a few others that I pretty much know what they do, and some check boxes, but one of the 3 above might be Kerkythea's "bounce"?

I'll play around with em, see what works.

[CartographerTom]

Masta Squidge

@unknownuser said:

I just loaded the glass library from Kerky site, but am reluctant to try anything too large.

Can you perhaps provide a link? Im having a stupid moment and cant seem to find the glass library...

alpro

This is a link for the material downloads in the Kerkythea Repository, if you read through the Kerky Forums there is also materials made by some of the users that are really good. http://www.kerkythea.net/joomla/index.php?option=com_remository&Itemid=42&func=select&id=3

Mike

not registered yet

@alpro said:

This is a link for the material downloads in the Kerkythea Repository, if you read through the Kerky Forums there is also materials made by some of the users that are really good. http://www.kerkythea.net/joomla/index.php?option=com_remository&Itemid=42&func=select&id=3

Mike

ditto.

there is one named "car paint" that is sweet!

[CartographerTom]

Fletch

Hi Tom,
You can modify any of the settings in KT to the most deep and advanced degree.
I don't like to do this because I'm lazy and in a hurry. So I go for the presets as Giannis has optimized them beautifully.

But to reduce the refractions and speed up render times (two glass surfaces close together will bounce light back and forth until the cows come home) try this:

Render>Setup> now lower your tracing depth on the bottom of the Global Illumination tab... to 3 or something...

Also, now when you run the render, be sure to choose 'custom settings'.

For better lighting, choose a high-res global sky Clipi made... this will give you instantaneous lighting for your scene, nothing to set up. or download an HDR light probe and load it in the spherical sky slot of the sun and sky wizard. no sweat.

ps - when rendering with only one light source, such as this scene, you will find Progressive Path Tracing render method very fast, and as it's unbiased you will see a great preview in only a minute, and in an hour or so a very clear render (depending on many things, but for your scene at 800x600 I guaratee it.)

not registered yet

Fletch!!! You are the man!

Although I haven't attempted the hdr stuff yet, your suggestion in settings works great. And since I was reluctant to change the settings in there without knowing what they do, now I went and changed the photons and others, and sped up the time even faster.

can you see the difference in the two images here???

http://picasaweb.google.com/Cartographer.Tom/Test/photo#5112757379912754210
one took 4 minutes, and one took 11 minutes.
the settings are shown there too.
off line they are even bigger and I can only see a very faint difference.

[CartographerTom]

Edson

great renders, tom. imagine what you will be doing very soon. i can hardly wait to get my hands on kerky (as a mac man i am still waiting for the mac port).

cheers.

Gaieus

Tom,

Really improving, nice!

Edson, the Mac version is already being tested!

Fletch

glad I could help!
now go to Model>Insert>Infinite Plane

apply a black material to it, and re-render. You will like it instantly better I think

Or even better download the sketchup object lighting studio from this thread.

or see also this thread