Chaos Corona Forum

Official Stuff => News => Topic started by: Ondra on 2013-09-02, 23:34:00

Title: 3dsmax standard/photometric lights supported
Post by: Ondra on 2013-09-02, 23:34:00
(http://i.imgur.com/oK4ofuu.jpg)
Title: Re: 3dsmax standard/photometric lights supported
Post by: Chakib on 2013-09-03, 02:09:35
Nice to see that thanks  !!!!
Title: Re: 3dsmax standard/photometric lights supported
Post by: hglr123 on 2013-09-03, 07:49:35
:)
Title: Re: 3dsmax standard/photometric lights supported
Post by: maru on 2013-09-03, 10:28:18
(http://www.reactiongifs.com/wp-content/uploads/2013/05/Elizabeth-Banks-OMG.gif)
Title: Re: 3dsmax standard/photometric lights supported
Post by: Stan_But on 2013-09-03, 12:41:02
Thanks!
'corona shadow wharrgarbl'))
Title: Re: 3dsmax standard/photometric lights supported
Post by: Polymax on 2013-09-03, 13:15:58
Big thanx!
Title: Re: 3dsmax standard/photometric lights supported
Post by: Ondra on 2013-09-03, 14:21:18
added soft shadows to CoronaShadow:

(http://i.imgur.com/khBet4a.jpg)
Title: Re: 3dsmax standard/photometric lights supported
Post by: Chakib on 2013-09-03, 16:20:26
i'll definitely gonna play with these, thanks ondra !
Title: Re: 3dsmax standard/photometric lights supported
Post by: Ondra on 2013-09-03, 16:29:40
please don't :D Using CoronaLights is much more recommended ;)
Title: Re: 3dsmax standard/photometric lights supported
Post by: Chakib on 2013-09-03, 16:47:18
please don't :D Using CoronaLights is much more recommended ;)

i know  hehe but nice to play with it :D
Title: Re: 3dsmax standard/photometric lights supported
Post by: racoonart on 2013-09-03, 18:50:02
It's more recommended to use coronaLights but what are the "real" drawbacks in using the standard lights? I mean speed-wise or something like that. I would guess that standard lights with sharp shadows should render faster than little CoronaLights.
If it enables us to do specific things (which are not doable with coronaLights) then it should be working well (and we should know the problem cases) ;)
Title: Re: 3dsmax standard/photometric lights supported
Post by: Ondra on 2013-09-03, 19:23:00
It's more recommended to use coronaLights but what are the "real" drawbacks in using the standard lights? I mean speed-wise or something like that. I would guess that standard lights with sharp shadows should render faster than little CoronaLights.
If it enables us to do specific things (which are not doable with coronaLights) then it should be working well (and we should know the problem cases) ;)

They will always give you incorrect (point) reflections in glossy surfaces, the rendertime goes up with the amount of lights (but not noise amount per pass, so it is similar to the way mental ray works), and it is very easy to create some possibly unnecessary fake effect, like incorrect decay, resulting in bad looking images.
Title: Re: 3dsmax standard/photometric lights supported
Post by: maru on 2013-09-03, 19:27:48
Is there a proper "physical scale" for photometric lights? So for example if I place a photometric light with the preset "40W light bulb" does it really glow like one? I mean intensity. Can this be used to tune Corona lights to proper intensity?
Title: Re: 3dsmax standard/photometric lights supported
Post by: racoonart on 2013-09-03, 19:31:37
They will always give you incorrect (point) reflections in glossy surfaces, the rendertime goes up with the amount of lights (but not noise amount per pass, so it is similar to the way mental ray works), and it is very easy to create some possibly unnecessary fake effect, like incorrect decay, resulting in bad looking images.

Ok, good to know!
I understand the reflection thing and the rendertime stuff too (.. i think).
Yes I know you hate those fake lights, but clients tend to request the most unusual things which are not always achievable with CoronaLights - so.. fine if the client is happy (and you can still hate standard lights ;) )
Title: Re: 3dsmax standard/photometric lights supported
Post by: Ondra on 2013-09-03, 19:37:11
maru: that does not make sense yet, because there is no physical camera
Title: Re: 3dsmax standard/photometric lights supported
Post by: maru on 2013-09-03, 21:08:11
Ok, but I mean something like intensity reference for realistic light bounces and proportions between, for example, skylight and light bulbs. You can control these things with post processing but there must be some "realistic" values.
Title: Re: 3dsmax standard/photometric lights supported
Post by: zhangjx511 on 2013-09-04, 08:22:14
very good news,like it.
Title: Re: 3dsmax standard/photometric lights supported
Post by: bair4ik on 2013-09-04, 12:03:20
need downlaod alfa5 and reinstall? or this in day update?
Title: Re: 3dsmax standard/photometric lights supported
Post by: Stan_But on 2013-09-04, 12:25:23
Quote
proportions between, for example, skylight and light bulbs

this is  be good to may possible set lights intensity in lumen which would be in true proportions with corona sky. Even without physical camera.
Title: Re: 3dsmax standard/photometric lights supported
Post by: Ondra on 2013-09-04, 12:40:35
need downlaod alfa5 and reinstall? or this in day update?
it will be in A6, but not A5
Title: Re: 3dsmax standard/photometric lights supported
Post by: Ondra on 2013-09-05, 19:06:03
I'll have to whitelist which lights will get parsed, because vray ones are apparently causing crashes. If I forget about some light type you need, just let me know
Title: Re: 3dsmax standard/photometric lights supported
Post by: teknikarsitek on 2013-10-23, 15:32:26
i tried with corona alpha 5, but the standard light and photometric cannot work .. is it something wrong ? :)
Title: Re: 3dsmax standard/photometric lights supported
Post by: Ondra on 2013-10-23, 16:17:47
this is not included in alpha5, it will be in the next stable release.
Title: Re: 3dsmax standard/photometric lights supported
Post by: teknikarsitek on 2013-10-23, 16:29:08
noted .. thanks :)