Chaos Corona Forum

General Category => Gallery => Topic started by: e15r on 2013-05-16, 06:15:28

Title: zuliban`s bath
Post by: e15r on 2013-05-16, 06:15:28
the old scene, tested vray settings - that's now the corona.

most problem was the glass, resulting in:
is a single-layer ground,
material twosided,
refraction color light grey (180)
object properties - uncheck cast shadows.

on rendering speed, there is no difference, is there glass or not.
but the glass can be seen in the picture.

1) corona clear render without photoshop
2) v-ray with photoshop
3) corona with photoshop - corrected color and sharp
Title: Re: zuliban`s bath
Post by: Polymax on 2013-05-16, 11:10:58
Good, but:
1. Use 2 sided mode for windows glass
2. Use portals
3. Set blur parameter in the bitmap to 0.01
4. use very small amount of bump (blur = 0.01), example 0.05
Title: Re: zuliban`s bath
Post by: pionier on 2013-05-16, 12:22:44
Quote from: Polymax on 2013-05-16, 11:10:58
Good, but:
1. Use 2 sided mode for windows glass
2. Use portals
3. Set blur parameter in the bitmap to 0.01
4. use very small amount of bump (blur = 0.01), example 0.05

when you load bump/spec/gloss map are loading them with gamma 1.0 ?
Title: Re: zuliban`s bath
Post by: Polymax on 2013-05-16, 12:38:48
it depends from gamma setting in the 3dsmax and your choice in load bitmap parameters.
Title: Re: zuliban`s bath
Post by: pionier on 2013-05-16, 12:43:14
Quote from: Polymax on 2013-05-16, 12:38:48
it depends from gamma setting in the 3dsmax and your choice in load bitmap parameters.

I'm working with Vray on this setup, is it ok for corona?
Title: Re: zuliban`s bath
Post by: Polymax on 2013-05-16, 12:51:46
yes, but "outpu gamma" you need set to 2.2 for correct images saving.
Title: Re: zuliban`s bath
Post by: pionier on 2013-05-16, 13:43:48
I more often save to exr format, that is why I set up output to 1.0.
So, if that is the case - should I setup gamma 1.0 for my bump/ref/spec maps?

Title: Re: zuliban`s bath
Post by: Polymax on 2013-05-16, 13:55:26
Quote
So, if that is the case - should I setup gamma 1.0 for my bump/ref/spec maps?
no, leave by default.
Title: Re: zuliban`s bath
Post by: pionier on 2013-05-16, 14:01:05
thanks Polymax, just one more think that bother me - why corona is so sensitive to bump and glossy value? sometime even when I setup glossy to 0,2 I still get kind of hard reflection on my object, do I miss something?
Title: Re: zuliban`s bath
Post by: Polymax on 2013-05-16, 20:20:36
Please, post example image or scene, so hard to imagine what you're talking about.
Title: Re: zuliban`s bath
Post by: nehale on 2013-07-25, 18:13:48
by portals do you mean lights by the windows?
Title: Re: zuliban`s bath
Post by: kry on 2013-07-25, 20:12:50
Quote from: nehale on 2013-07-25, 18:13:48
by portals do you mean lights by the windows?
Plane with 1 polygon with assigned CoronaPortalMaterial >> and Normals can turned into interior.
Title: Re: zuliban`s bath
Post by: Ilija on 2013-07-27, 04:20:33
Sorry for my ignorance, but does portals make big difference in image quality? Same like in vray for example?
Title: Re: zuliban`s bath
Post by: Stan_But on 2013-07-28, 00:21:30
try and see)
Title: Re: zuliban`s bath
Post by: Chakib on 2013-07-28, 18:19:27
nice but, 9 hours ?