Darn, KeyShot caustics are just TOO much fun. :)
I used fractal noise for the water plane bump.
I put a point light (no IES) above the water surface and also one behind the orange ball to act as a fill light.
No HDRI. Really fast realtime rendering.
It's really amazing that just 1 year ago I didn't even dream of doing this in KeyShot...
Dries
It is good fun isn't it ... I am busy playing with IES at the moment but only have a few hours left on the demo license, I have asked to be a 4.2 beta tester but not heard from KS on that score ... :( but I will be posting a few renders and a link to a scene if you want to play with it later. I got my new chip installed yesterday too, 8 cores are more fun as well - lol Any way enough of me prattling on, good exercise and render again Dries, well done sir
I foresee some underwater shots coming soon....
Cool!
Found some inspiration in GOLD from SX (Belgian indie pop band...).
Dries
The obligatory 'fish in tank' shot.
Fish model from GrabCAD.
Dries
a set of goggles and a well bitten flipper added to that scene would suit that grinning fish perfectly - lol
nice work again Dries
Martin
Maybe a chattering fish with few water bubbles:) Nice!
Abed
Are the ripples just simply a bump map? If bump maps like that affect the caustics then colour me impressed!
Yes, the water geometry is a simple flat surface and the bump map is a procedural texture (fractal noise).
Dries
A bunch of GrabCAD fish is a (too tiny) tank.
A wonder who eats who first... :)
Dries
Just dimmed a few lights.
The only active light source in this shot is a point light that acts as the anglerfish's 'lure light' (+emissive sphere to make the light source visible).
Dries
These are insane! Are you taking your meds? Kidding aside, I doubt that even the Luxion Team realized where all of this would go. Wow!
Would this work if the tank was clear glass and there was a backplate?
Bill G
Dries, you are always taking it to the next level. I love it.
Thanks, guys! ;)
Quote from: Speedster on August 08, 2013, 12:52:18 PM
...
Would this work if the tank was clear glass and there was a backplate?
...
It does work.
I used a solid color backplate (KeyShot library: electric blue) and a ground plane.
This was rendered in 15 minutes on 6 cores. Advanced settings: 32 samples, 16 ray bounces, anti aliasing 5, caustics 100. Not too shabby a performance, I think. :)
Dries
Night shot.
Rendered with the same settings in 10 minutes.
Dries
I improved my first aquarium shot a bit.
Straight out of KeyShot.
Dries
From another point of view.
Dries
A bit more spunk.
Dries
I think it looks better on a darker background. :)
Dries
Yeah, the dark bacground is rockin'. The caustics look really cool. Need some greenery in the tank though, maybe some rocks.
Like you're reading my mind, Josh...
I found some cool aquatic decoration over at GrabCAD.
Currently rendering it out...
Dries
Decided to do a few more shots of this water box.Now with green water.
1st shot has a single point light below water level.
2nd shot has the point light above water level.
Dries
Love these Dries. Really interesting to see the difference!
Oops, forgot to post my shot with dispersion. ;)
I know, there's a bit too much dispersion going on, but now you can't miss it... :D
This is a realtime rendering shot.
Dries
And this one was done with advanced settings.
Dries
Nice. Try to use a mirror material on the balls, so you can see the reflection of the caustics. Mirror reflections of caustics like these cannot be simulated with algorithms like path tracing, bidirectional path tracing, Metropolis light transport etc., but the technique in KeyShot should handle it without problems.
Thanks, Henrik.
Hmm, interesting challenge. I wonder if I should make the spheres chrome or use some other geometry to best show the reflections... I'm going to try to put a chrome right triangular prism on the bottom of the aquarium with the base face facing the camera. Trying get some caustics reflected up onto the side walls.
Dries
EDIT:
I guess you mean the mirror image of these caustics. :)
I'll render this scene again tomorrow with mirror balls.
Here's the same aquarium box with chrome balls.
Dries
That is both crazy and awesome 8)
Specialy if you try to realise what is going on in that scene ..
I think without dispersion the caustic reflections are more pronounced.
Dries
That's really fantastic Dries!
I was wondering how to sharpen the caustics, this is a great tip!
Decided to do a final torture shot of this aquarium scene.
I increased the IOR on the inner faces of the box and decreased roughness a great deal.
Now you get sharp reflections of the water caustics in the spheres, blurry reflections of caustics in the walls and slightly colored caustics due to being reflected from metal. ;)
This is a realtime render. For ultimate caustics quality, the realtime renderer is unbeatable.
Dries
Here's a detail crop of the upper golden sphere.
Dries
Looks great! Exactly what I was hoping to see :-)
Really final shot of this box with glass elipsoids. The water has no dispersion. The glass has heavy dispersion (Abbe 10).
Now there are caustics (glass) being generated by the water caustics. :)
Dries
Dries, you have a wonderful way of researching KS and its light handling capabilities ... keep em coming
Martin
Quote from: DriesV on August 08, 2013, 03:44:35 AM
Darn, KeyShot caustics are just TOO much fun. :)
I used fractal noise for the water plane bump.
I put a point light (no IES) above the water surface and also one behind the orange ball to act as a fill light.
No HDRI. Really fast realtime rendering.
It's really amazing that just 1 year ago I didn't even dream of doing this in KeyShot...
Dries
it is very cool ,can you tell me where can i download the sense? thank you tc0543@126.com
Quote from: TpwUK on September 17, 2013, 05:42:41 PM
Dries, you have a wonderful way of researching KS and its light handling capabilities ... keep em coming
Martin
Thanks, Martin!
I'm having TOO much fun with these caustics. :) Only a few months ago rendering this scene would have been entirely impossible in KeyShot. Now KS is one of the best renderers (and apparently in some areas
THE best) for these kind of scenes. Go figure... 8) I think that's amazing.
Dries
Oh, here's a little more resolved version of that last image...
What happens if you use the thin film soap bubble with caustics ? have you tried it yet ?
Martin
Is there any chance you will share the basic setup file. I can't get it to look anything like water. Sure I must make a mistake. Would be happy for an empty scene with just the water surface effect
hello
Gift for Dries 8)
Enjoy!
Antoine
Hi Antoine
Hmm, it was not the fish I needed. I modelled a shark in ZBrush and would love to "put it in an ocean" like environment with some soft caustic effect without the "box"... but I can't make the scene work. Maybe I didn't explain it clear enough :-)
Picture 2: my terrible attempt :-(
It looks like you may need a stronger light source (like the physical lights in Dries' scene) to make the caustics more visible.
We recently wrote a blog post on caustics, hope it can shine a light on the topic ;) (terrible pun intended)
https://www.keyshot.com/2016/5-steps-getting-great-caustics-keyshot/ (https://www.keyshot.com/2016/5-steps-getting-great-caustics-keyshot/)
uh, my interface is from Zbrush to Keyshot 5 plugin. Wonder if I am in trouble here?
I did push light harder, but all the wave-like effect looks more like "weird bobbles" (picture below)?
I cannot seem to get waves
It looks like the caustics in your image are in the initial stages of calculating. You need to let the render rez up longer to allow the caustics to sharpen up.
Eric
Hi Eric
Doesn't make much difference - the reflections on the object is still like dots and not like waves. I can't seem to get it working
Helle-
Can you share your test scene?
Eric
Here you go.... (thanks in advance)
Helle-
Save it as a KeyShot Package (.ksp) so your texture maps are included. File > Save Package.
Eric
Okay, the size!!! 116 MB
Link from here:
https://www.dropbox.com/s/210n09tvxlvtym0/test_ocean.zip?dl=0
hope you are still here :-)