Chaos Corona Forum

General Category => Gallery => Work in Progress/Tests => Topic started by: Anri_Ford on 2013-09-03, 21:13:31

Title: Casio watch wip
Post by: Anri_Ford on 2013-09-03, 21:13:31
Hi
Recently I made a Casio watch, now I want to visualize them in the environment. Test render.
Title: Re: Casio watch wip
Post by: Ondra on 2013-09-03, 21:25:56
only 4 passes per hour? what PT samples do you use?
Title: Re: Casio watch wip
Post by: Anri_Ford on 2013-09-03, 21:43:05
60 samples)) Just DOF were artifacts and I decided to pick up samples. I left the renderer for the night, so the time is not critical.
and I use Bidir/VCM configuration
Title: Re: Casio watch wip
Post by: Ludvik Koutny on 2013-09-03, 21:48:02
60 samples)) Just DOF were artifacts and I decided to pick up samples. I left the renderer for the night, so the time is not critical.
and I use Bidir/VCM configuration

there is your problem.

Use Progressive, not bidir/VCM, and use 4 PT samples. You are doing opposite of what you should do. Use PT+PT for GI. You will get nearly same result, but a LOT faster.

By the way increasing PT samples will actually make DoF quality worse. PT samples is not a multiplier, it is a balance value. Lower PT samples will mean more samples will go into AA, DoF and Motion Blur, higher PT samples will mean more samples will go into lighting, shading and GI.
Title: Re: Casio watch wip
Post by: Anri_Ford on 2013-09-03, 21:51:46
there is your problem.

Use Progressive, not bidir/VCM, and use 4 PT samples. You are doing opposite of what you should do. Use PT+PT for GI. You will get nearly same result, but a LOT faster.
Thank you, I will consider for the future. Just for the Russian is not very much information about the corona render
Title: Re: Casio watch wip
Post by: Ludvik Koutny on 2013-09-03, 21:57:29
there is your problem.

Use Progressive, not bidir/VCM, and use 4 PT samples. You are doing opposite of what you should do. Use PT+PT for GI. You will get nearly same result, but a LOT faster.
Thank you, I will consider for the future. Just for the Russian is not very much information about the corona render

No problem. I am curious to see how quick the scene will render with the settings i have posted :)
Title: Re: Casio watch wip
Post by: ecximer on 2013-09-03, 22:05:17
Quote
Just for the Russian is not very much information about the corona render
Что, в гугле забанен? http://cgpolymax.blogspot.ru/p/corona-renderer-faq.html
Я и ещё многие и без русского хелпа разобрались.
Title: Re: Casio watch wip
Post by: Anri_Ford on 2013-09-03, 22:10:33
No problem. I am curious to see how quick the scene will render with the settings i have posted :)
Check back later. Now my computer is chugging along on the renderer.
I recently drawn on Watch the studio.

Quote
Just for the Russian is not very much information about the corona render
Что, в гугле забанен? http://cgpolymax.blogspot.ru/p/corona-renderer-faq.html
Я и ещё многие и без русского хелпа разобрались.
Ну это понятно) Да просто и времени особо нету искать все. Для этого и открыл вип, чтобы опыт черпать.
Title: Re: Casio watch wip
Post by: nehale on 2013-09-04, 12:38:47
60 samples)) Just DOF were artifacts and I decided to pick up samples. I left the renderer for the night, so the time is not critical.
and I use Bidir/VCM configuration


By the way increasing PT samples will actually make DoF quality worse. PT samples is not a multiplier, it is a balance value. Lower PT samples will mean more samples will go into AA, DoF and Motion Blur, higher PT samples will mean more samples will go into lighting, shading and GI.

Thank you so much for that explanation, can you explain what the HD cache samples and how they contribute to AA/DOF and flickering during animation
Title: Re: Casio watch wip
Post by: Anri_Ford on 2013-09-04, 16:30:52
Made another render. Yes, of course a long time)), but there are artifacts on the Blur. Now I do render, with settings that advised Rawalanche. Still, I reduced the resolution a bit. For 15 minutes 30 passes. Wait.
Oh, yes, in the scene, a source of light - corona sun and corona sky in the environment.
Title: Re: Casio watch wip
Post by: Ludvik Koutny on 2013-09-04, 16:48:46
Made another render. Yes, of course a long time)), but there are artifacts on the Blur. Now I do render, with settings that advised Rawalanche. Still, I reduced the resolution a bit. For 15 minutes 30 passes. Wait.
Oh, yes, in the scene, a source of light - corona sun and corona sky in the environment.

You can disable sun light visibility to reflections. It will remove some of the highlights, but you will get a lot cleaner image. ;)
Title: Re: Casio watch wip
Post by: Anri_Ford on 2013-09-04, 20:50:56
Disabled Reflect the sun, added a light.
Title: Re: Casio watch wip
Post by: Ludvik Koutny on 2013-09-04, 22:26:33
You could try to use some HDRI with sun, or partial sun behind clouds, and then enhance contrast in post processing. I think you are already getting quite a good speed. Reasonable quality for 13 minutes of rendering at such resolution, but highlight from the sun gave it a bit more definition, so i would try that HDRI, which usually has softer but still strong highlights :) :)
Title: Re: Casio watch wip
Post by: Anri_Ford on 2013-09-05, 12:48:45
The first picture with the usual sun and light. The second with HDRI.
Title: Re: Casio watch wip
Post by: Ludvik Koutny on 2013-09-05, 13:08:12
The first picture with the usual sun and light. The second with HDRI.

I would make sure the HDRI you use has enough depth, enough highlights, and that you are opening it correctl (32 bit with def. exposure). It still looks a bit dull for HDRI :)

I would recommended trying these http://jeffpatton.net/2012/05/sharing-a-few-more-hdrs/ . Jeff is a real professional when it comes to HDRI :)
Title: Re: Casio watch wip
Post by: Ludvik Koutny on 2013-09-05, 13:14:44
And as i said, do not be afraid of post processing :)
Title: Re: Casio watch wip
Post by: Anri_Ford on 2013-09-05, 13:31:22
oh yeah, I got hdri and sun. I just need to try hdri. But in the post, I think it is better not to yellow, because the grass is worse.
Title: Re: Casio watch wip
Post by: Ludvik Koutny on 2013-09-05, 13:37:39
oh yeah, I got hdri and sun. I just need to try hdri. But in the post, I think it is better not to yellow, because the grass is worse.

Yeah, its a matter of taste, my point was that you should try to do some fine corrections in photoshop for example. If you do not own it, then even composite will do ;)
Title: Re: Casio watch wip
Post by: Anri_Ford on 2013-09-05, 15:03:55
I make the color correction, from source raw in lightroom.
here are the raw image
Title: Re: Casio watch wip
Post by: Anri_Ford on 2013-09-05, 17:04:18
HDRI. 2 variants post processing.