Messages

16

[C4D] General Discussion / Re: Corona mat script to quickly create basic materials

« on: 2016-02-26, 16:10:56 »

Hi Old man thanks for the nice materials!
R14 crashes though with 'Corona Glass Frosted'
the other materials work fine.  weird?!..

mlon

We'll look into this at some point. Created a bug report:
https://forum.corona-renderer.com/index.php/topic,8272.0/all.html

Cheers,
Jarda

17

[C4D] Bug Reporting / Re: Gamma issue between Corona VFB and C4D Picture viewer

« on: 2016-02-26, 15:57:21 »

Could you upload the scene, pls? We'd like to look into the issue. Thanks!

18

[C4D] General Discussion / Re: Any news on the OSX port?

« on: 2016-02-26, 15:52:07 »

Corona core port almost done, moving on to standalone, once this is done, porting the C4D plugin is next on the list. Two to three months before an alpha can come out.

19

[C4D] General Discussion / Re: Interactive Rendering Problem

« on: 2016-02-26, 15:49:48 »

We're aware of the problem, it's high on the priority list but not easy to resolve. Patience...

20

[C4D] General Discussion / Re: Camera distortion correction (vertical, horizontal shift)

« on: 2016-02-26, 15:17:00 »

Hey xkuruma,

concerning the performance, are you using UHD cache in Corona? Could you post the scene? (Both vray and corona versions). I'd love to see where the performance gap may be coming from. Thanks!

Cheers,
Jarda

21

[C4D] Resolved Bugs / Re: [Maybe a Bug?] Anisotropic reflection on capped cylinders

« on: 2016-02-26, 14:55:53 »

Hi guys,

I've created a bug report for this:
https://corona-renderer.com/bugs/view.php?id=1593
And we'll look into the problem once A5 has been out.

In the meantime, if anyone could try to reproduce the problem, that would be highly appreciated. The more information we get from you, the more effective we can be in resolving the issue.

Cheers,
Jarda

22

[C4D] General Discussion / Re: Alpha v4.1 hotfix

« on: 2016-02-26, 14:13:42 »

Hey,

we're working intensely on the Cinema4D plugin and the OSX port. A new alpha will be out in a matter of days, then two more alphas during spring and summer and finally, in September, v. 1.0 should be out.  Stay tuned!

Cheers,
Jarda

23

[Max] General Discussion / Re: GGX / maximum roughness compared to vray ?

« on: 2015-07-28, 15:01:18 »

Hi Nicolaswi,
yes, we do apply a curve to the glossiness parameter. The reason we did this was that we wanted a given glossiness value to produce similar look in the old BRDF we used previously and in the new GGX one. A consequence of this is that the range of roughness is indeed limited by this remapping and you are right that we do not cover the entire range of roughness of the GGX BRDF. This is not a limitation of our GGX implementation, only a consequence of the curve applied to the glossiness parameter before it is fed to the GGX BRDF.
I can provide you with the curve so you can use in the converter but that will not solve the problem that we do not cover the entire roughness range. Is that a problem in practice? As far as I know, so far no one needed a GGX BRDF that would be rougher than the one that corresponds to our glossiness=0 setting. (Also, from a physical point of view, this does not make much sense because the physical validity GGX BRDF model is questionable for extreme roughness values - but I know, who cares in practice.)
Cheers,
Jarda

24

[Max] Resolved Feature Requests / Re: Denoiser pass Like Disney Research paper and implemented in Renderman

« on: 2015-07-09, 14:07:17 »

Hi,
work on adaptive image sampling as well as denoising in Corona is currently under way. The plan is to have a preliminary version by the beginning of the fall, and a stable one by the end of the year.

Some comments on the Disney paper: As far as I know (unofficial), the spatiotemporal filter described in this paper has not been implemented in RenderMan. It's a fairly involved tech that does not easily blend with many renderer.  I believe that denoising in RenderMan 20 is really just a spatial filter (working independently on individual images).
Cheers!