Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] General Discussion => Topic started by: ozwald on 2018-04-09, 22:58:57

Title: Glass
Post by: ozwald on 2018-04-09, 22:58:57
Greetings friends, I wanted to know if this scene can be done in Corona
Thank you
Title: Re: Glass
Post by: Beanzvision on 2018-04-09, 23:57:42
Of course it can. This is a pretty standard lighting setup if you were to google it. More than likely it's a 2 X softbox setup, one key, one fill plus a spot to separate the bottle from the backdrop. Lens would be some between 85mm - 135mm
Title: Re: Glass
Post by: ozwald on 2018-04-10, 00:02:57
Thank you, but I was referring more to glass, I do not know if it's with volumetric
Title: Re: Glass
Post by: Ealexander on 2018-04-10, 00:21:23
Glass in Corona is very nice to work with.  The trick to reproducing this shot is not about volumetrics but about getting the lighting setup correct.

e.
Title: Re: Glass
Post by: iacdxb on 2018-04-10, 04:38:21
I like the condensation.... nice combination and placement of micro and big drops.

...
Title: Re: Glass
Post by: Beanzvision on 2018-04-10, 11:22:57
A little test...
Title: Re: Glass
Post by: ozwald on 2018-04-10, 15:55:20
render bottle and ice with the cinema 4d engine,
render of labels and drops with corona.
I could not achieve this finish in glass with corona since the reflections of the lights are very strong and it also complicated me with the refraction.
I'm sure I have a lot to learn from the corona.
Title: Re: Glass
Post by: maru on 2018-04-10, 17:07:36
Two samples from our gallery. So yeah, this can be done. :)
https://corona-renderer.com/content/gallery/78-Pomegranate-Shots-by-Doniyor-Mamanov.jpg
https://corona-renderer.com/content/gallery/657-Cocktails-01-by-Doniyor-Mamanov.jpg
Title: Re: Glass
Post by: TomG on 2018-04-10, 17:18:00
I love those two images, they always make me thirsty :)

For thick colored glass, you can indeed use volumetrics (that was asked earlier on in the thread), with a regular Corona material and the Volumetric setting. Absorption color and distance are the key (https://coronarenderer.freshdesk.com/support/solutions/articles/5000515622-how-to-set-up-realistic-glass-metal-materials (https://coronarenderer.freshdesk.com/support/solutions/articles/5000515622-how-to-set-up-realistic-glass-metal-materials))
Title: Re: Glass
Post by: ozwald on 2018-04-10, 17:53:38
If, of course, with a corona, wonders are done, the problem is how to do it. the constant that we always need tutorials
Title: Re: Glass
Post by: TomG on 2018-04-10, 19:31:06
Can't speak to the quality of them, but lots of tutorials exist, as the principles are the same whether it's Max or C4D (or even a different render engine) - e.g. a Google search for "corona raindrops tutorial" or "corona condensation tutorial"

Lots of options exist - normal and other maps to change the materials, or even outright adding geometry using particles, mograph, manual painting or placement, etc.
Title: Re: Glass
Post by: Ealexander on 2018-04-11, 19:00:26
Making sure to drink a beer before building shaders will definitely help!
Title: Re: Glass
Post by: artdude12 on 2018-04-11, 19:18:40
This is a nice tutorial on doing the drops: https://greyscalegorilla.com/tutorials/create-realistic-condensation-using-mograph-physical-and-arnold-3-part-series/

Just replace Arnold with Corona.

I think there is another tutorial out there that uses thinking particles to create the condensation.
And of course of if you have x-particles, that would be handy as well.
Title: Re: Glass
Post by: Beanzvision on 2018-04-11, 19:37:21
This is a nice tutorial on doing the drops: https://greyscalegorilla.com/tutorials/create-realistic-condensation-using-mograph-physical-and-arnold-3-part-series/

Just replace Arnold with Corona.

I think there is another tutorial out there that uses thinking particles to create the condensation.
And of course of if you have x-particles, that would be handy as well.
Or it can be done just by using textures ;)