Author Topic: KeyShot 4.1 Beta - Caustics tests  (Read 29930 times)

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Offline DriesV

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KeyShot 4.1 Beta - Caustics tests
« on: May 22, 2013, 12:02:30 pm »
I just saw the KS 4.1 beta sample images from the Metal Master himself and I felt like sharing some of my own.

I've been experimenting primarily with the new focussed caustics that work with any material and light source (HDRI, point light, area light...).
Focussed caustics is seriously good stuff! This is a feature I've been longing for since I first started using KeyShot.
I'm pretty sure you will like this feature just as much as I do. ;)

I think it will prove invaluable to anyone rendering jewelry, glassware, liquids, lighting fixtures... you name it...
Like the images below show, they enable you to literally paint your scene with light. So cool.
Check this VR to see what I mean by 'painting with light':
KeyShot 4.1 - Caustics showcase in light box VR

Description of images:
All images are screenshots from the realtime render window.
All images feature a 'light box'. It's a shelled cube with one open side. There's a slot in the left-hand wall to let light through.

IMAGE 1
Very dim HDRI light (<0,05). There is one bright point light to the left of the box. This light is the primary light source and creates a striped light through the slot. There's another (dimmer) point light in front of the box's open side to act a fill light.
The striped light gets reflected on, refracted and dispersed through a Gem prism (Abbe number 10).

IMAGE 2
Same scene and set-up, but with a colored wall and DOF.

IMAGE 3
This is a seriously underlit scene!
There is but one point light shooting light through the slot and illuminating the box's inside. So there's no HDRI lighting, no fill light to the front.
The big centered sphere is 24k polished gold. The right-hand smaller spheres are polished Platinum. The left-hand spheres have the Gem material applied to them: IOR 1.5, Abbe number = 15.

Dries
« Last Edit: May 22, 2013, 11:17:34 pm by DriesV »

Offline DriesV

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Re: KeyShot 4.1 Beta - Caustics tests
« Reply #1 on: May 22, 2013, 04:06:09 pm »
Another little light painting. ;)

Dries

Offline tsunami

Re: KeyShot 4.1 Beta - Caustics tests
« Reply #2 on: May 22, 2013, 04:12:46 pm »
Heyyyyy caustics are working good !! i see....good work Driesv

guest67048

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Re: KeyShot 4.1 Beta - Caustics tests
« Reply #3 on: May 22, 2013, 07:12:31 pm »
I like  I like ````` 8)

Offline DriesV

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Re: KeyShot 4.1 Beta - Caustics tests
« Reply #4 on: May 23, 2013, 04:40:59 am »
Here's another light box shot.
There's an additional 12000k color point light behind the golden sphere.

Dries

Offline edwardo

Re: KeyShot 4.1 Beta - Caustics tests
« Reply #5 on: May 23, 2013, 05:07:20 am »
This is gonna be great...
looking forward to seeing some nice glassware shots soon. Wont be long before some clever-clogs has mimicked the dark side of the moon album cover

Offline Despot

Re: KeyShot 4.1 Beta - Caustics tests
« Reply #6 on: May 23, 2013, 05:08:00 am »
My favourites are the prismatic ones, very nice...

Now we need the ability to do volume caustics - they are gorgeous but very elusive  ;)

J

Offline Chad Holton

Re: KeyShot 4.1 Beta - Caustics tests
« Reply #7 on: May 23, 2013, 05:12:21 am »
Awesome stuff, Dries!  8)

Offline Josh3D

Re: KeyShot 4.1 Beta - Caustics tests
« Reply #8 on: May 23, 2013, 06:38:18 am »
Nice Dries! The VR is brilliant!

Offline DriesV

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Re: KeyShot 4.1 Beta - Caustics tests
« Reply #9 on: May 23, 2013, 06:41:59 am »
Wont be long before some clever-clogs has mimicked the dark side of the moon album cover

Hmm... what a great suggestion that was! ;D

Dries
« Last Edit: May 23, 2013, 08:22:15 am by DriesV »

Offline Ruckus

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Re: KeyShot 4.1 Beta - Caustics tests
« Reply #10 on: May 23, 2013, 07:41:03 am »
Awesome!  "Great Gig in the Sky" is wailing through my brain as I type this.

Offline edwardo

Re: KeyShot 4.1 Beta - Caustics tests
« Reply #11 on: May 23, 2013, 07:45:01 am »
Somehow I knew you'd be that clever-clogs, Mr Dries  ;)   nice job

Clogs.... are you Dutch?

Offline DriesV

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Re: KeyShot 4.1 Beta - Caustics tests
« Reply #12 on: May 23, 2013, 08:06:41 am »
Somehow I knew you'd be that clever-clogs, Mr Dries  ;)   nice job

Clogs.... are you Dutch?

Nope, Belgian.
From the Flemish part.

Dries

Offline DriesV

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Re: KeyShot 4.1 Beta - Caustics tests
« Reply #13 on: May 23, 2013, 08:23:17 am »
Now that I take a closer look at that 'DSotM tribute' image...
That one really has it all: external reflections, internal reflections, refractions, dispersion...
And all with realistic light energy decay in the right places.

Dries
« Last Edit: May 23, 2013, 08:24:58 am by DriesV »

Offline DriesV

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Re: KeyShot 4.1 Beta - Caustics tests
« Reply #14 on: May 23, 2013, 10:02:46 am »
Another shot with a great model from grabcad.

Dries