Caustics II

[vlado]

Seeing as how this is still popular, here is a remake



Render time was about 1h 50m in total.

Best regards,
Vlado

[joconnell]

Just curious how this is made or what it's displaying? Is this a light in a little silver cone light fitting causing the caustics?

[dimo]

Hi,

I would suspect that this is lighting over a mirror?

[vlado]

It's a small spherical VRayLight inside a reflective cone, similar to those small lights that you see nowadays everywhere; the light pattern comes from caustics formed by that light.

Best regards,
Vlado

[_jaro]

It's lovely to see render times, but info about configuration would be perfect to have. Then I can say if it is still popular with me

[Gijs]

How did you get that free of blotches?

[joconnell]

Ah excellent - so the individual cones are made by the facets inside the cone - it's a very clean technical example in that case - I reckon I'll be sticking to my gradient projection hack though

Are there any possibilities of adding projection maps to vray lights?

[Da_elf]

looks like an ies light lighting the scene with the caustics reflecting off the mirror and caustics in the real scene are shown in the reflection in the mirror. i believe the technical difficulty is that other renderers can reflect caustics no problem, however they cant have the caustics shown in the reflection or something like that.

[joconnell]

Yeah there's a nice little subtle tint on some of the top caustics where they bounce off the mirror.

[siliconbauhaus]

cool

gives everyone over at the mw forums something else to be happy about :P

[priad]

amazing!
Vlado, can we make differents shape of light with differents cone?
That would be really awesome.

[Morbid Angel]

vlado what are those facets im seeing in the teapot?

[vlado]

vlado what are those facets im seeing in the teapot?

The faces of the teapot, obviously The phong interpolation trick does not work very well for photon mapping.

How did you get that free of blotches?

I'd need to write an entire tutorial for this... basically it is very similar to what WinOSI does, if you are familiar with that renderer. This image is the average result of 100 other noisier images... An entire photon map with that detail would not fit into memory.

It's lovely to see render times, but info about configuration would be perfect to have.

Dual AMD Opteron at 2.2 GHz.

Best regards,
Vlado

[Morbid Angel]

vlado could you share this scene? Im interested in the settings for caustics as this is what Im trying to get at this time and without success

[vlado]

The scene was posted a while back, if you search through the forum you will find it. However, how to get an image like this is not quite obvious (but it's not difficult either); like I said, maybe I'll write a tutorial about it...

Best regards,
Vlado