water and caustics

tiktane358 · Post by **tiktane358** » Fri Jan 05, 2007 11:16 pm

I don't see a lot of water in this forum.
So I post some tests to show a little water effects...

Post by **jure** » Fri Jan 05, 2007 11:36 pm

Oh cool! I like the caustics. Would be nice to see animation of this...

Mario · Post by **Mario** » Sat Jan 06, 2007 4:47 am

Very cool!
Would like to see animation of this:-)

tiktane358 · Post by **tiktane358** » Sat Jan 06, 2007 11:12 am

This is a 100 frames movie.
Render is 640x480 but scaled down to 50%.
I let Kray line at 100% so you can see render time.
There is just one source : a spot light.
Water is nodal displacement.
I was to lazy to model a rubber ring duck...
I render with Time interpolation GI mode...
Is it ok ? Jure, can you explain a little what can be tuned ?

Mario · Post by **Mario** » Sat Jan 06, 2007 11:43 am

One word - WOW

Make just a biger resolution and a bit longer time and this has to go to the animation gallery!
Also maybe just slow down the opening of the wall, just a bit

Post by **jure** » Sat Jan 06, 2007 2:08 pm

tiktane358 wrote:This is a 100 frames movie.
Render is 640x480 but scaled down to 50%.
I let Kray line at 100% so you can see render time.
There is just one source : a spot light.
Water is nodal displacement.
I was to lazy to model a rubber ring duck...
I render with Time interpolation GI mode...
Is it ok ? Jure, can you explain a little what can be tuned ?

Wow. Looks great. What are your settings?

obo · Post by **obo** » Sat Jan 06, 2007 4:18 pm

Amazing work!
I must do something like that

tiktane358 · Post by **tiktane358** » Sat Jan 06, 2007 4:54 pm

Don't you guess, Jure ? Medium....
But I push caustic to 2.200.000.

Mario · Post by **Mario** » Sat Jan 06, 2007 5:07 pm

tiktane358, just an idea for this water/caustic test.
You know all those max, menatlray images where they fill a cornell box with water and illuminate it with one are light, and they go one and on how their render engine is superior and superior...
What do you think to leran them a little lesson

Could you try and make an animation.
I didnt say like that one, couse I think it wasnt done yet. They always render out an image and they go one and one how long it would take to render (superior engine my a$$).
Anyway, just an idea and a good way to present the capabilities of Kray.

tiktane358 · Post by **tiktane358** » Sat Jan 06, 2007 8:27 pm

Sorry mario, I don't like too much this way of thinking: competition between renderers. It tend to make users to be ennemies for all life

Vray is a good render engine, Kray goes better and better, Fprime is a good one too, maxwell is great,....
I'd prefer to make a thread like one in maxwell forum named "Breaking Barriers"

to see Kray limits, so we can have a good idea what we can do or not (but always quality in mind)

Mario · Post by **Mario** » Sun Jan 07, 2007 12:36 am

"Breaking Barriers" hmmmmm

Nice one!
Would like to see that cornell box files with water:-)

phile_forum · Post by **phile_forum** » Fri Jan 12, 2007 11:24 am

tiktane358 wrote:I don't see a lot of water in this forum.
So I post some tests to show a little water effects...

Hi there. How did you do the ripples on the water surface? Was it a procedural? If so, which one and what settings?

I've got a rendering job coming up that will involve a swimming pool and I'm keen to get some caustics into it!

Phil

tiktane358 · Post by **tiktane358** » Sun Jan 14, 2007 8:49 pm

Sorry for the late answer..

I show you displacement node (very basic one)
Wave (1) turn to the left and Wave (2) turn to the right.
Add is for mixing the two and multiply to control the whole displacement value.
But for a big pool, it's better to make procedural to move, otherwise you'll be able to see rotation center, and there is to big speed delta between center to outside.
You can try a lot a combinaisons. Wave is a soft one...

phile_forum · Post by **phile_forum** » Sun Jan 14, 2007 10:09 pm

Excellent. Thanks for that!

Phil

keeejreeej · Post by **keeejreeej** » Mon Jan 21, 2008 4:21 pm

Strange, I've tried this (OB6.5) but I can't seem to get the water to 'move'. At least not using texture displacement (tried node or normal texture displacement). Using WavyWater as bump texture works fine though..

www.kraytracing.com