Chaos Corona Forum

Chaos Corona for Cinema 4D => [C4D] General Discussion => Topic started by: Nikola on 2018-10-01, 18:03:46

Title: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Nikola on 2018-10-01, 18:03:46
Hi all,

If you have not been following the development through the Daily Builds we are pleased to announce that Release Candidate 1 for Corona Renderer for Cinema 4D, Beta 2 is out now.

Link to the blog announcement:
https://corona-renderer.com/blog/corona-renderer-for-cinema-4d-beta-2-release-candidate-1-released/ (https://corona-renderer.com/blog/corona-renderer-for-cinema-4d-beta-2-release-candidate-1-released/)

Nikola
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Shawn Astrom on 2018-10-01, 18:25:44

Congrats guys! New Layer Node is awesome!!! Thank you!

- Shawn
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: ozwald on 2018-10-01, 18:38:50
Hello Nikola, I wanted to tell you that I can not download the latest update for windows, I give it to download but it does not do anything
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: ozwald on 2018-10-01, 18:54:08
I was able to download, I had to change my browser
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: TomG on 2018-10-01, 18:56:00
Hello Nikola, I wanted to tell you that I can not download the latest update for windows, I give it to download but it does not do anything

Probably just the demand - first time I tried it got stuck on Google's anti virus scan, second time it worked just fine. I would give it another go :)
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-01, 19:26:06
Great.... thanks for update.

It will be nice if fix IR with CV Splines to Objects, in that CV Outline and CV Chamfer... IR goes crazy....!

Thanks.
...

p.s.
bug report added, may be helpful. And...
https://www.dropbox.com/s/vjkth02f5txh481/CV.mp4?dl=0
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Eddoron on 2018-10-01, 20:12:46
Great.... thanks for update.

It will be nice if fix IR with CV Splines to Objects, in that CV Outline and CV Chamfer... IR goes crazy....!

Thanks.
...

Do you have the IR open all the time? Do you model using the IR?
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-01, 20:26:27
Great.... thanks for update.

It will be nice if fix IR with CV Splines to Objects, in that CV Outline and CV Chamfer... IR goes crazy....!

Thanks.
...

Do you have the IR open all the time? Do you model using the IR?

In short, I said only cause not the IR start time.... and have run IR when start render....!

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Barendby on 2018-10-01, 20:44:12
Does RC mean no more new features, just fixing bugs and stability until final release?
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: TomG on 2018-10-01, 21:19:21
Does RC mean no more new features, just fixing bugs and stability until final release?

Until the final release of Beta 2, yes. But that's Beta 2, not the final release when the first paid version is out.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-02, 05:41:29
See if it easy to add some feature in node system...!
- auto connect when dragging shader over the connector.
- Add existing... more materials to select with ctrl key or all (hard to convert old files materials one by one).

Thanks.
...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: hughannes on 2018-10-02, 09:56:33
The "save cxr saving support in picture viewer" has been moved to preliminary plans.
Could you make an estimate as to when this feature will be available?

Thanks in advance!
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: snifferdog on 2018-10-02, 13:56:15
Hi,

With RC1 and I am now experiencing a lot of crashes whenever I am using a HDRI sky, I have tried various different scenes. Using MacOS, has anybody else experienced this issue?

Thanks.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Beanzvision on 2018-10-02, 14:24:30
Hi,

With RC1 and I am now experiencing a lot of crashes whenever I am using a HDRI sky, I have tried various different scenes. Using MacOS, has anybody else experienced this issue?

Thanks.
Can you be more specific and describe some steps to recreate this or what you were doing when the crash happened?
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: snifferdog on 2018-10-02, 14:37:01
Can you be more specific and describe some steps to recreate this or what you were doing when the crash happened?

It is happening during rendering, I either get the spinning wheel of death or a plugin error window pops up.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Beanzvision on 2018-10-02, 14:43:28
Can you be more specific and describe some steps to recreate this or what you were doing when the crash happened?

It is happening during rendering, I either get the spinning wheel of death or a plugin error window pops up.
Can you gather as much if as possible, bugreports, screen grabs of error and possibly the problematic scene file and upload it to our private uploader? Link is in my signature below. Thanks.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: CBAS VISUAL on 2018-10-03, 10:29:07
RC1 beta 2 work perfectly guys.

Thanks you for the work !!

Rémi
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: elaraisawhale on 2018-10-03, 10:46:47
i got an issue regarding rendering stats: no more continually update, gotta switch between post/stats sections to have statistics update.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: jamieirvin on 2018-10-03, 10:51:21
Hi guys,

RC1 seems to be stable and is working great.

The only 'issue' I'm getting thus far is that a lot of my scene objects display as bright green in the viewport, rather than displaying their diffuse texture.  Restarting my scene 'forces' most of the textures to reload.  It's not scene specific.  It happens on all 5 machines (Mac OS) and quite regularly. Although it is more prolific on larger scenes with high res textures.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Beanzvision on 2018-10-03, 11:38:05
Hi guys,

RC1 seems to be stable and is working great.

The only 'issue' I'm getting thus far is that a lot of my scene objects display as bright green in the viewport, rather than displaying their diffuse texture.  Restarting my scene 'forces' most of the textures to reload.  It's not scene specific.  It happens on all 5 machines (Mac OS) and quite regularly. Although it is more prolific on larger scenes with high res textures.
Hi, that's pretty odd. Next time it happens can you screenshot it?
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-03, 11:42:52
This I posted earlier also.... but I think ignored...!

See HDRI used and its green, some time it is on objects also.
screen shot from view port.
..
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Beanzvision on 2018-10-03, 12:07:03
This I posted earlier also.... but I think ignored...!

See HDRI used and its green, some time it is on objects also.
screen shot from view port.
..
Sorry I never saw this so no ignoring from me ;) Thanks for sharing it (again)
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-03, 12:21:19
Its ok... no prob.
I am sure it will be fixed now.

But thanks for the Beta 2 RC1.... much happy with that.

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: jamieirvin on 2018-10-03, 12:26:53
Hi guys,

RC1 seems to be stable and is working great.

The only 'issue' I'm getting thus far is that a lot of my scene objects display as bright green in the viewport, rather than displaying their diffuse texture.  Restarting my scene 'forces' most of the textures to reload.  It's not scene specific.  It happens on all 5 machines (Mac OS) and quite regularly. Although it is more prolific on larger scenes with high res textures.
Hi, that's pretty odd. Next time it happens can you screenshot it?

Hi,

Screenshots attached.  I just opened this scene and it loaded as per the first shot.  I then chose to 'revert to saved' and it re-loaded with some more textures visible, but not all...

All texture paths are correct so it's not a 'missing texture' issue 🧐
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Beanzvision on 2018-10-03, 13:09:14
Perfect for "green-screening" ;) Thanks for the images.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: jamieirvin on 2018-10-03, 13:15:20
Perfect for "green-screening" ;) Thanks for the images.

Ha ha, yeah every cloud has a green lining.

Just in case it helps, each time I load the scene the textures that display as green vary.  It's entirely inconsistent! 🤯
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: ficdogg on 2018-10-03, 13:57:49
If you hit render all materials does it get fixed?
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: jamieirvin on 2018-10-03, 14:23:19
If you hit render all materials does it get fixed?

No, that doesn't fix anything in the viewport...

*edit... after doing that twice it solved the issue for that scene 😄
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-03, 15:05:35
If you hit render all materials does it get fixed?

Green shows only in view port... when render, all goes fine.

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: BLADE on 2018-10-03, 15:15:40
I had a very strange rendering today. As quality minimum I had entered Noise=5%. This was almost reached with pass 80, namely 5.29%.

From then on the noise level slowly increased again with each pass (well, all 5 passes)? How can this happen?

Sorry I can´t provide the scene due NDA.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: jamieirvin on 2018-10-03, 17:01:56
If you hit render all materials does it get fixed?

Green shows only in view port... when render, all goes fine.

...

I believe he's suggesting you right-click on your material browser and select "Render All Materials".   This re-calculates all the material previews and solves (temporarily) the green-textures issue within the viewport.
 
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-03, 18:54:07
If you hit render all materials does it get fixed?

Green shows only in view port... when render, all goes fine.

...

I believe he's suggesting you right-click on your material browser and select "Render All Materials".   This re-calculates all the material previews and solves (temporarily) the green-textures issue within the viewport.

Right click on "material browser" and select Render all material.... where it is, not found....!

This green can be anywhere when open file... depend on the file texture mood. In another file, all product texture is green.

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: BLADE on 2018-10-03, 22:18:39
iacdxb,

just click with the right mouse button ON a material in the material browser.
Then select "Render All Material".

I have the same problem like you and this little trick helps. Its not perfect, but I am sure the corona guys will come up with a bug fix.

Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-04, 04:44:14
Thanks Blade, trick works.
and sure they will fix this.

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-04, 06:00:49
Mateiral Node System board not dragging with LMB+1 or any other key...?

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: mrittman on 2018-10-04, 06:07:52
Would also be nice to RMB+Alt to zoom in and out of node editor, just like in the standard viewport.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-04, 06:50:21
Would also be nice to RMB+Alt to zoom in and out of node editor, just like in the standard viewport.

that's ok but with track ball rolling... zoom in out works.

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Beanzvision on 2018-10-04, 08:14:37
In regards to the "green glitch", does this happen to a certain material? For example, only those that are reflective or use an image map etc? Or is it just completely random and does not matter?
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-04, 08:36:10
It is randomly.
Some time used HDR is green and some time some HDR is fine object texture showing green. Few time file close open again... all textures shows fine.

It reminds me old days when Vray was have same issue with I think R17, it was showing yellow.... and now it is green...!

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: jamieirvin on 2018-10-04, 11:43:31
In regards to the "green glitch", does this happen to a certain material? For example, only those that are reflective or use an image map etc? Or is it just completely random and does not matter?

It's entirely random.   It changes each time the scene is loaded.  Sometimes it's just a few, sometimes it can be most of the scene. 

It does seem more apparent as the scene becomes more complex and is more likely if the materials are of a large resolution.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Br0nto on 2018-10-04, 19:14:44
I take it this issue is still in the bug list, as per your post in that thread a week or so ago? Are there plans to try to tackle it before Beta 2 release?

https://forum.corona-renderer.com/index.php?topic=21299.msg134838#msg134838

Thanks!
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: houska on 2018-10-05, 13:42:39
I take it this issue is still in the bug list, as per your post in that thread a week or so ago? Are there plans to try to tackle it before Beta 2 release?

https://forum.corona-renderer.com/index.php?topic=21299.msg134838#msg134838

Thanks!

Yes, we're working on it...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: sylbot on 2018-10-05, 15:32:31
I have the same problem it's random but it happens more often with complex scenes with a lot of texture
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Br0nto on 2018-10-05, 15:35:38

Yes, we're working on it...

Great, thanks! Didn't mean to be redundant, just double checking.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: darstellungsart. on 2018-10-05, 17:15:00
Hey,

Bugs:
using IR
-materials turn bright yellow when I use corona shared shader
-material resets input to nothing when I use corona shared shader

Wishlist:
-a list with shaders on the left side like in the new c4d node system
- if you delete a shader on the slate just remove it from view not delete it completely


Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: daveclive on 2018-10-05, 17:18:46
Hi guys,

RC1 seems to be stable and is working great.

The only 'issue' I'm getting thus far is that a lot of my scene objects display as bright green in the viewport, rather than displaying their diffuse texture.  Restarting my scene 'forces' most of the textures to reload.  It's not scene specific.  It happens on all 5 machines (Mac OS) and quite regularly. Although it is more prolific on larger scenes with high res textures.

I am also experiencing this issue on OSX.
Seems to happen in every scene no matter what size. Must be something to do with loading the diffuse material. it happens when a image is used in the diffuse channel.
A quick fix is to delete all materials from material manager then CMD + Z and they reappear. For some reason this works over selecting all textures in texture manager and relinking to file path
Title: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Nikola on 2018-10-11, 13:33:45
Hi all,

release candidate 2 of Corona for Cinema 4D Beta 2 is out.

Download link: https://drive.google.com/open?id=13xF3PCozC71mO-ky1hnjz6eXYqJJfd3H (https://drive.google.com/open?id=13xF3PCozC71mO-ky1hnjz6eXYqJJfd3H)

Changes:
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Beanzvision on 2018-10-11, 13:57:04
Nice! ;)
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-11, 14:52:05
lovely jubbly...!

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: masterzone on 2018-10-11, 16:49:01
Stunning! we are waiting for the final release for start our e-learning courses!
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Br0nto on 2018-10-11, 16:50:07
I was testing the motion blur improvements when I ran across a new glitch, as far as I can tell. Turning on object motion blur in a scene I have with a stationary, non-cloned/noninstanced car and a stationary camera appears to shift all the car pieces from their original location.

Since nothing is moving at all, this seems like a good scene to narrow down issues. Scene and renders attached.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: houska on 2018-10-11, 17:38:47
I was testing the motion blur improvements when I ran across a new glitch, as far as I can tell. Turning on object motion blur in a scene I have with a stationary, non-cloned/noninstanced car and a stationary camera appears to shift all the car pieces from their original location.

Since nothing is moving at all, this seems like a good scene to narrow down issues. Scene and renders attached.

Thank you for the scene! We successfully reproduced the issue and will fix it ASAP.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: houska on 2018-10-11, 17:46:43
Thank you for the scene! We successfully reproduced the issue and will fix it ASAP.

OK, fixed! You can expect the fix to appear in RC3. Thank you again for the scene! With it, we were able to pinpoint the problem very quickly
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Shawn Astrom on 2018-10-11, 19:54:11

Camera Mapping is not working in IR. Also front and back options are not working in render to Picture viewer.

- Shawn
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Nazar Babiak on 2018-10-11, 21:10:21
Motion Blur still doesn't work properly...

It behaves so strange I can not even describe. Just take a look at this:
https://drive.google.com/drive/folders/1_souxsIwPwwXyYrJdBynqwECPNNZ7jWu?usp=sharing
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-11, 21:44:57

Camera Mapping is not working in IR. Also front and back options are not working in render to Picture viewer.

- Shawn

There are also important to me, I checked these... Camera Mapping working in IR. Texture sides also working in IR...!

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-11, 22:27:55
Override material with bump texture... c4d quits. Tested few files.

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Eddoron on 2018-10-12, 05:23:17
Override material with bump texture... c4d quits. Tested few files.

...

confirmed
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Shawn Astrom on 2018-10-12, 06:33:14
Camera mapping front and back does not work correctly. Camera mapping in IR also does not work in all of my tests.

- Shawn




Camera Mapping is not working in IR. Also front and back options are not working in render to Picture viewer.

- Shawn

There are also important to me, I checked these... Camera Mapping working in IR. Texture sides also working in IR...!

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: tuami on 2018-10-12, 10:24:21
Hello, we're testing Corona for Cinema 4D, version B2 rc 2.
in this version green pixels appear in the rendering. we use the team renderer, all nodes have been updated to version B2 rc 2. can someone readjust this?
See Screenshot 1 and 2 -> B2 RC2
Screenshot 4 -> B2 RC1
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: stanDM on 2018-10-12, 11:40:59
Displacement not working on polygon selections if object has a base material

When you apply any kind of corona material on object and then, on top of it, you apply material with displacement onto polygon selection, displacement does not show up. This used to work in some Beta 1 RC, but got broken in final Beta 1 stage and was never fixed despite being reported to Mantis.

Edit: screenshot 1 shows object material displacement being applied to polygon selection material, despite the fact it has a different displacement.
screenshot 2: base object material has no displacement, polygon selection material has displacement, but it does not show up

Stan
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Beanzvision on 2018-10-12, 13:27:53
I can also confirm the mtl override issue. For the devs, adding to wrike.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: stanDM on 2018-10-12, 13:31:56
Object buffer mask in composition - bug or limitation?

If I do multipass render with object buffer and this object has Corona composition tag with all options turned off except "visible in mask", you cannot see this object in the object buffer pass
We have tried to use Material ID pass instead of object buffer mask, but this does not work either. Not sure if this is bug or limitation, but it works in C4D Standard renderer ...

We use this approach to create tracking points for post production in AfterEFfects (or any other postproduction SW) - and because of this problem we have to use C4D Standard renderer to achieve results we need.

Stan

Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Nikola on 2018-10-12, 15:11:13
Override material with bump texture... c4d quits. Tested few files.

...
Hi Imran,

Thank you for the bug report. I fixed the crash, but I would like to ask you whether there is some object in the scene which doesn't have assigned any material (doesn't have any texture tag)? In such case, if the material has some shader in any of its channels this channel will not affect the look of the object because object hasn't texture tag and Corona don't know what mapping it should use because meaning of the Material override is mainly to temporarily override material of all objects which already has some material assigned. Alternatively, you can use "Projector" shader to tell Corona what mapping should be used for the given channel.

Nikola
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Br0nto on 2018-10-12, 15:15:11
Thank you for the scene! We successfully reproduced the issue and will fix it ASAP.

OK, fixed! You can expect the fix to appear in RC3. Thank you again for the scene! With it, we were able to pinpoint the problem very quickly

Happy to help! Thanks!
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Core2000 on 2018-10-12, 15:32:43
Thx for the fast updates guys. You are awesome!

We just have Problems with IR and Xpresso nodes. When we use Xpresso the IR updates permanently.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Beanzvision on 2018-10-12, 15:35:16
Override material with bump texture... c4d quits. Tested few files.

...
but I would like to ask you whether there is some object in the scene which doesn't have assigned any material (doesn't have any texture tag)? In such case, if the material has some shader in any of its channels this channel will not affect the look of the object because the object hasn't texture tag

Nikola
I can confirm that it does work if all objects are assigned a material tag of some sort.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: houska on 2018-10-12, 15:41:31
Thx for the fast updates guys. You are awesome!

We just have Problems with IR and Xpresso nodes. When we use Xpresso the IR updates permanently.

Yes, this is a known issue and unfortunately cannot be solved without making compromises. Xpresso updates the scene periodically, which restarts the IR rendering. We cannot do anything about it, we can only do some workarounds, which will probably help, but as with everything in C4D, it will take some time to implement and currently we don't have that time, as we are focusing on bringing more important features and fixing crashes etc...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Beanzvision on 2018-10-12, 16:03:27
Object buffer mask in composition - bug or limitation?

If I do multipass render with object buffer and this object has Corona composition tag with all options turned off except "visible in mask", you cannot see this object in the object buffer pass
We have tried to use Material ID pass instead of object buffer mask, but this does not work either. Not sure if this is bug or limitation, but it works in C4D Standard renderer ...

We use this approach to create tracking points for post production in AfterEFfects (or any other postproduction SW) - and because of this problem we have to use C4D Standard renderer to achieve results we need.

Stan
So you're after this? Sorry, I'm no masking expert ;) I just checked seen by the camera in the composite tag.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-12, 16:34:36
Override material with bump texture... c4d quits. Tested few files.

...
Hi Imran,

Thank you for the bug report. I fixed the crash, but I would like to ask you whether there is some object in the scene which doesn't have assigned any material (doesn't have any texture tag)? In such case, if the material has some shader in any of its channels this channel will not affect the look of the object because object hasn't texture tag and Corona don't know what mapping it should use because meaning of the Material override is mainly to temporarily override material of all objects which already has some material assigned. Alternatively, you can use "Projector" shader to tell Corona what mapping should be used for the given channel.

Nikola

Thanks Nikola for reply.
Scene was full of objects and it was hard to find... where is crashing.
Yes... some of them was not assigned any material.

Crash happens with only bump channel, if texture is in diffuse or in any other channel, its not crashing weather material is applied to object or not.
(attached)... to plane object no material applied, just taking diffuse color only.... no displacement because no material was applied and same function should be with bump. Spheres are getting displacement because of material applied.

And yes... before override material, any material should be applied to object, that's right...!

and thanks... you fixed it.

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-12, 16:43:37
Till the final release... any chance to improve view of Sun and Sky objects in view port...?
after adding these.... view port stays almost same, a bit darker with sky, at least when sky added... a small hint of blue gradient feels sky is added and same for sun, a small light.

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Eddoron on 2018-10-12, 19:29:17
Ok, so everything's fine with a texture tag, but there are always some situations where none are assigned or some missing, with hundreds of objects. I'd fix it before the final or the tsunami of questions will wash us away like the dinosaurs (who lived near the coast).
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-13, 10:31:38
With Cloth tag... IR goes crazy.....!
Even the object is disable, traffic lights are off... IR same.

file sent.

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Eddoron on 2018-10-13, 12:27:15
With Cloth tag... IR goes crazy.....!
Even the object is disable, traffic lights are off... IR same.

file sent.

...

You are tearing me apart, Lisa!

It seems that you have a sixth sense, that is coupled to the IPR always being active, for finding a new bug every day.

BTW, what do you get when you set all traffic lights to green?




-A crash!
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-13, 14:45:21
With Cloth tag... IR goes crazy.....!
Even the object is disable, traffic lights are off... IR same.

file sent.

...

You are tearing me apart, Lisa!

It seems that you have a sixth sense, that is coupled to the IPR always being active, for finding a new bug every day.

BTW, what do you get when you set all traffic lights to green?




-A crash!


ahahahhahaa..... I am not finding, it comes out auto, although I have to finish one or two jobs everyday so using different tools for every job and in that crash happens.

IR, I am using when texture fixing and then in lighting. Render with PV most of time.

even object is on or off.... In attachment, object is off, but cloth tag is there....!!!
IR goes crazy until remove cloth tag.

but not yet this bug confirmed from corona team side....!

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: tuami on 2018-10-13, 19:07:17
Hello, we're testing Corona for Cinema 4D, version B2 rc 2.
in this version green pixels appear in the rendering. we use the team renderer, all nodes have been updated to version B2 rc 2. can someone readjust this?
See Screenshot 1 and 2 -> B2 RC2
Screenshot 4 -> B2 RC1

Can someone check that please
Thank you!
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-14, 13:21:11
Sorry guys.... one more.

"Spline Dynamics Tag" also makes IR crazy.....!

I hope corona team is marking these bugs.

Imran.
...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: darstellungsart. on 2018-10-14, 15:24:54
Hello,

that bug that turns materials yellow is still there in RC2.
It looks like the fresnel turns up because it looks more like an metal and the reflection color turn yellow. It happens when I use the filter shader.
Nodeeditor performance feels slower than RC1 while using the IR.

keep the good work up! :D
C4D R19 RC Beta 2
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: darstellungsart. on 2018-10-14, 20:07:57
Hello,

got a strange bug that will crash cinema every time i click on one specific material.

https://drive.google.com/file/d/1jbI8PwUEw_hIcq-hT5-ZNuunjoZkN8tC/view?usp=sharing
open c4d file and click on the material.

testet with RC1 and RC2, Cinema R19
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Mor4us on 2018-10-14, 20:18:56
got a strange bug that will crash cinema every time i click on one specific material.

confirmed on
Version: B2 daily Aug  3 2018 (core 3 (DailyBuild Aug  3 2018))
and Version: B2 rc 2 (core 3 (DailyBuild Oct 10 2018))

in C4D R18.057 MacOS
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-15, 08:20:41
Hello,

got a strange bug that will crash cinema every time i click on one specific material.

https://drive.google.com/file/d/1jbI8PwUEw_hIcq-hT5-ZNuunjoZkN8tC/view?usp=sharing
open c4d file and click on the material.

testet with RC1 and RC2, Cinema R19

On file opening... c4d crashing. No second to click or open material.

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: stanDM on 2018-10-15, 10:20:56
So you're after this? Sorry, I'm no masking expert ;) I just checked seen by the camera in the composite tag.

Yes, this is a desired output pass, but "seen by camera" means that this object will show up in beauty pass as well - and this is what we do not want to happen. That is why "seen by camera" was turned off in our scene, so you get just an object mask in this specific pass. In post-production this is pretty standard approach as you often need some extra masks, but of course you do not want to change the look of final image.

Stan
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: houska on 2018-10-15, 11:20:02
got a strange bug that will crash cinema every time i click on one specific material.

Hi, we looked at the scene and were able to fix this so it doesn't crash anymore. We have one question though - how did you create the scene? Could we reproduce the crash ourselves somehow? Why I'm asking - after the fix, the material is all black, which doesn't seem like what you intended.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Nikola on 2018-10-15, 13:17:01
Hello, we're testing Corona for Cinema 4D, version B2 rc 2.
in this version green pixels appear in the rendering. we use the team renderer, all nodes have been updated to version B2 rc 2. can someone readjust this?
See Screenshot 1 and 2 -> B2 RC2
Screenshot 4 -> B2 RC1
Hello,

hard to say without the scene. There are no changes between RC 1 and RC 2 which should cause this. Is the issue reliably reproducible, i.e. when you render it more times in a row using RC 1 there is no issue with the dots and when you render it more times in a row using RC 2 the dost are here every time? Do you use UHD cache? And when you change GI solver in render settings from UHD cache to Path tracing does it solve the issue?

Thank you
Nikola
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Nikola on 2018-10-15, 15:03:40
Hi all,

release candidate 3 of Corona for Cinema 4D Beta 2 is out.

Download link: https://drive.google.com/open?id=13xF3PCozC71mO-ky1hnjz6eXYqJJfd3H (https://drive.google.com/open?id=13xF3PCozC71mO-ky1hnjz6eXYqJJfd3H)

Changes:
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-15, 15:24:34
Hi all,

release candidate 3 of Corona for Cinema 4D Beta 2 is out.

Download link: https://drive.google.com/open?id=13xF3PCozC71mO-ky1hnjz6eXYqJJfd3H (https://drive.google.com/open?id=13xF3PCozC71mO-ky1hnjz6eXYqJJfd3H)

Changes:
  • Fixed wrongly positioned instanced objects when motion blur was used in IR
  • Fixed some random crashes in Motion blur
  • Fixed crash when material override was used with some textured material and some object didn't have texture tag
  • Fixed crash when empty Projector shader was used in a Shared shader (refreshing still have to be fixed)

Thanks Nikola but Post # 72 and 76.... not fixed.

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Nikola on 2018-10-15, 15:41:21
Thanks Nikola but Post # 72 and 76.... not fixed.

...
Yes,

they are not fixed. This is a general problem. As Cestmir have already written some tags in Cinema updates the scene periodically, which restarts the IR rendering. We are currently thinking about what we can do with this problem. If you want to help us, it would be great, if you can send us a list with all tags you have a problem with. When the IR starts looping try to delete the tags one by one until IR stops the looping.

Thank you
Nikola
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: 4b4 on 2018-10-15, 18:15:06
Thanks for all your work on improving Corona Nikola, would you mind taking another look at the yellow issue, post #77 mentions it above and it's been mentioned elsewhere. It would be very helpful when trying to tweak materials using the IR to not have to restart the IR all the time when the yellow materials make an appearance.

Cheers
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: burnin on 2018-10-15, 19:53:23
Oh... could you introduce Pause & Refresh (restart) buttons to CFB/IR?
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-15, 19:58:56
Thanks Nikola but Post # 72 and 76.... not fixed.

...
Yes,

they are not fixed. This is a general problem. As Cestmir have already written some tags in Cinema updates the scene periodically, which restarts the IR rendering. We are currently thinking about what we can do with this problem. If you want to help us, it would be great, if you can send us a list with all tags you have a problem with. When the IR starts looping try to delete the tags one by one until IR stops the looping.

Thank you
Nikola

Thanks Nikola.

Character Tags and Motion Tracker Tags I am not using... not Rigging or doing motion tracking.
Which I use... these are Hair Tags and Simulation Tags, from these "Spline Dynamics" and "Cloth Tag" are giving IR looping in simple scenes.

I hope in next beta... these will be fixed.

Thanks,
Imran.
...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: tuami on 2018-10-15, 21:08:59
Hello!
Any chance to get rid of those bright pixels? When using Beta 2 RC1 they dont appear.


Windows 7/10 / Cinema 4D R18/R19 / Corona Beta 2 RC2/RC3
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: StenierTag92 on 2018-10-15, 23:17:16
BUG Report!

Hi everyone! My R19 stuck at boot logo "Initializing Plugins" with beta2 RC1-2-3. I tried to reinstall and uninstall plugins, but still have the problem :(
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Eddoron on 2018-10-16, 02:33:35
Hello!
Any chance to get rid of those bright pixels? When using Beta 2 RC1 they dont appear.
Scene attached...

Windows 7/10 / Cinema 4D R18/R19 / Corona Beta 2 RC2/RC3

Have you enlarged the images of the previous renders and could it be that the hot pixels show up when the camera is closer?
If not, then it's the Mandela-effect.

Do you have volume caustics enabled and what's your MSI? Also your material setups and basically any info we can get.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-16, 07:58:34
Hello!
Any chance to get rid of those bright pixels? When using Beta 2 RC1 they dont appear.
Scene attached...

Windows 7/10 / Cinema 4D R18/R19 / Corona Beta 2 RC2/RC3

In quick.... I set MSI to 1 and after 6 passes....all clear. You can try other numbers where looks better..

...


Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Beanzvision on 2018-10-16, 09:19:39
Hold on a minute....You're complaining about pixels after only 6 passes? You have 150 passes set, let it do it's thing, use denoising, then let us know. I just did 20 passes with denoising and a lot of that went away...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: tuami on 2018-10-16, 11:45:16
Hold on a minute....You're complaining about pixels after only 6 passes? You have 150 passes set, let it do it's thing, use denoising, then let us know. I just did 20 passes with denoising and a lot of that went away...

Hello again
I do not know why but the problem has resolved itself. The problem was actually another scene which I had rendered with 160 passes and the bright pixels were still visible. In the B2 R1, the problem was initially not visible. Anyway now it seems to work sorry for the confusion.

project finished ;)

https://www.konorg-shop.de/messestaende/leucht-messestand-led/
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Nazar Babiak on 2018-10-16, 14:55:20
Hi dear devs!

What about that Motion Blur thing I wrote about on page 4?

Thanks!
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Pepelecrabb on 2018-10-17, 14:42:07
Once again the LUTs are missing in B2 rc3.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: katzenwaffe on 2018-10-17, 14:58:36
My VFB-tone mapping settings seems to reset all of a sudden all the time. I need to know what I am doing to make this happen to prevent it. Can I lock it somehow?
Let's say I've set up a camera in a scene, and dialed in settings for exposure, highlight compression, saturation etc and all of this is stored in camera tag. Next time I open scene it's sometimes all back to default?

What am I doing wrong?
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-17, 15:06:14
Once again the LUTs are missing in B2 rc3.

Its working in OS X.

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Beanzvision on 2018-10-17, 15:16:19
BUG Report!

Hi everyone! My R19 stuck at boot logo "Initializing Plugins" with beta2 RC1-2-3. I tried to reinstall and uninstall plugins, but still have the problem :(
Are you still having issues with this? Can you try installing manually?
https://help.c4d.corona-renderer.com/support/solutions/articles/12000005452-corona-renderer-for-c4d-installation-process-beta-version-
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: jamieirvin on 2018-10-18, 13:51:02
Does anyone else find that when you 'draw' a region render in the VFB, it doesn't restrict rendering to the defined region until the region is then adjusted?

 This only seems to have been an issue since the arrival of the beta. It wasn't apparent in the alpha releases.

I'm using RC3 on Mac OS
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: jamieirvin on 2018-10-18, 13:53:30
I have also found that if you switch cameras during IR then all the camera settings (tone mapping, LUT etc) reset to default.

This has only happened a couple of times but I thought I was going mad until I realised the issue.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: ozwald on 2018-10-18, 16:24:19
I have also found that if you switch cameras during IR then all the camera settings (tone mapping, LUT etc) reset to default.

This has only happened a couple of times but I thought I was going mad until I realised the issue.

I believe that the values of the tone mapping, LUTS, ..... etc belong to the camera in which those adjustments are made, if you change the camera you must apply them again.
I think it's like that ... right?
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: jamieirvin on 2018-10-18, 17:46:15
I have also found that if you switch cameras during IR then all the camera settings (tone mapping, LUT etc) reset to default.

This has only happened a couple of times but I thought I was going mad until I realised the issue.

I believe that the values of the tone mapping, LUTS, ..... etc belong to the camera in which those adjustments are made, if you change the camera you must apply them again.
I think it's like that ... right?

Yes, sorry that's not what I was referring to.  If I switch cameras as the IR is rendering, the values on the original camera reset to default when I switch back again. 

I should have explained that better...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: synolog on 2018-10-19, 08:17:11
Hi, if you apply 2 or more hair_objects to 1 object there is a crash. Last RC - [08:17:59] CRITICAL: Duplicate definition for net.maxonexample.cinema4dsdk
 [object_impl.cpp(4478)]
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Eddoron on 2018-10-19, 08:28:38
Hi, if you apply 2 or more hair_objects to 1 object there is a crash. Last RC - [08:17:59] CRITICAL: Duplicate definition for net.maxonexample.cinema4dsdk
 [object_impl.cpp(4478)]

I tried it manually and with the corona button which creates a hair object. Everything worked fine. Do you have a scene or video?
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Beanzvision on 2018-10-19, 08:57:21
Yeah, a screenshot would be handy. Multiple Crn hair seems to be working for me too. Tested in R20/B2 RC3
(https://forum.corona-renderer.com/index.php?action=dlattach;topic=21897.0;attach=92362;image)
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: synolog on 2018-10-19, 16:05:37
Yep tested on another system with amd vcard and everything ok. I think that the problem could be the nvidia driver, now i'm downloading the latest. Cinema R20.028 Corona B2RC3

Update: nvidia drivers updated, now it crashes when render in viewport with antialiasing>2; fine in vfb and ir. Tested with 1080 and 970. No problems with amd.

Another problem with PPM caustics - crash if selected
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: houska on 2018-10-23, 15:00:25
"Spline Dynamics Tag" also makes IR crazy.....!

Could not reproduce this. Can I ask you for steps to reproduce this bug, please?
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-24, 05:43:44
"Spline Dynamics Tag" also makes IR crazy.....!

Could not reproduce this. Can I ask you for steps to reproduce this bug, please?

Hi Houska,

sorry for late... I was much busy in some urgent jobs and not seen post.
Spline Dynamics, Video uploaded and sample file also.
IR Cazy.zip
Spline Dynamics.mp4

Same happen with Cloth tag also. (sample file in zip)

I hope with this fix... many other crashed will be fixed automatically. (I hope CV Spline to Object) finger crossed.

Thanks.
...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Beanzvision on 2018-10-24, 08:52:39
@Cestmir, both of which are added in our Wrike triaged reports. @Imran, I have contacted Cineversity to ask for their assistance in solving the issues with their plugins. As it's a paid plugin we can't get access to it (yet).
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-24, 11:27:24
@Cestmir, both of which are added in our Wrike triaged reports. @Imran, I have contacted Cineversity to ask for their assistance in solving the issues with their plugins. As it's a paid plugin we can't get access to it (yet).

Thanks.
Cineversity guys are very helpful, I am sure they will assist you to solve this issue.

...
Title: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Nikola on 2018-10-24, 19:12:04
Hi all,

release candidate 4 of Corona for Cinema 4D Beta 2 is out.

Download link:
https://drive.google.com/open?id=13xF3PCozC71mO-ky1hnjz6eXYqJJfd3H (https://drive.google.com/open?id=13xF3PCozC71mO-ky1hnjz6eXYqJJfd3H)

Changes:
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-25, 16:24:54
Thanks for RC 4.
Much smoother and stable.

One small thing... material undo, in IR object turn to white... see if this also can be fixed...!

p.s.
I hope my sample file and video was helpful for you to find out IR crash. I hope this also will be fixed in next update.

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-26, 14:08:06
Color Mix does not work properly with IR, if do some setting it shows like no glossiness, stop and start again IR then shows correct result.

...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Beanzvision on 2018-10-26, 14:48:21
Color Mix does not work properly with IR, if do some setting it shows like no glossiness, stop and start again IR then shows correct result.

...
Hi Imran,

Can you supply some repro steps or a scene file? Also, for us to keep a better track of bugs, please use the bug thread here:
https://forum.corona-renderer.com/index.php?board=36.0

Thanks,
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Beanzvision on 2018-10-29, 15:40:59
Quote

Thanks.
Cineversity guys are very helpful, I am sure they will assist you to solve this issue.

...
Hi Imran, can you set up a scene for me that includes issues you are having with CVsplines? I've spoken with Cineversity and am awaiting our licenses. Thanks
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: iacdxb on 2018-10-29, 18:11:01
Quote

Thanks.
Cineversity guys are very helpful, I am sure they will assist you to solve this issue.

...
Hi Imran, can you set up a scene for me that includes issues you are having with CVsplines? I've spoken with Cineversity and am awaiting our licenses. Thanks

CV Spline test.zip uploaded.
CV-Outline, CV-Chemfer, CV-Catenary tools gives error.
2 files inside.... with both of them IR goes crazy....!

Thanks.
...
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: Mor4us on 2018-10-30, 10:06:06
Bloom&Glare Multipass Layer is still not working. If I remember correctly this was was reportet over a year ago and you promised to fix it with release of B2
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: travism on 2018-10-31, 23:47:27
Bloom&Glare Multipass Layer is still not working. If I remember correctly this was was reportet over a year ago and you promised to fix it with release of B2

Aw, this is too bad. I could really use this feature on a project right now.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: lenogre on 2018-11-01, 08:20:06
CV plugins are not yet supported by R20.

I had crashes when perspective view > top view.

Delete CV plugins solve the problem.

Forester plugin seems to be guilty. Same crashes when I change views.
Title: Re: Corona Renderer for Cinema 4D Beta 2 Release Candidate
Post by: houska on 2018-11-01, 08:52:29
I am locking this thread because Beta 2 was released as stable (https://corona-renderer.com/blog/corona-renderer-for-cinema-4d-beta-2-released (https://corona-renderer.com/blog/corona-renderer-for-cinema-4d-beta-2-released)). The Corona Renderer 3 daily build thread will be created in
Daily builds (https://forum.corona-renderer.com/index.php?board=40.0) board when the first daily build is released.

Of course, if you have any bug reports or crashes in the meantime, you can always just create a new bug report thread here on the forums.

Cestmir