Corona Render & Xpresso?

[Elias2019]

Hi friends, can you confirm if Corona is functioning well with Xpresso from simple tasks like set driver/driven to more complicated structures? I cannot figure it out if they work together well or not, it seems so random sometimes working and sometimes not working.. Any advice?

[Beanzvision]

Hi there, care to share an example? I use Xpresso from time to time and it seems to be working here.

[Elias2019]

Thanks for the reply and your time friend,

Yeah I see it working very well in your example but I have at least 2 issues up to this point:

1) Range Mapper problem: I'm having a Corona light reacting to the sound effector to achieve the flickering effect, the problem is that the corona light is not working well with the Range Mapper while the native C4d lights work pretty smooth. In one word I cannot easily and simply increase or decrease the Corona light intensity. My setup is as easy as this example from a Reddit forum:


2) But my main overal problem is that I cannot totally set driver/driven for some of the Corona lights and elements in the scene. For example I wanna simply drive the light intensity of a Corona light by any other C4d factor but I see they mostly don't work, or at least sometimes they work and sometimes they don't work. I'm not an expert in this subject or maybe I am missing something but I'm totally having a hard time using Corona with Xpresso while it could be really beneficial. Any ideas?

[Beanzvision]

Hi, are you able to share a zipped example of your scene?

[Cinemike]

There is a bug in C4D that prevents the sample node from actually doing its work: You need to add a solid node (or use fields in general) to make your setup work.
No blame goes to Corona in this case.

[Elias2019]

There is a bug in C4D that prevents the sample node from actually doing its work: You need to add a solid node (or use fields in general) to make your setup work.
No blame goes to Corona in this case.

Thanks friend, I am aware of that issue, sound effector is not the problem in my case but the Range Mapper.

[Cinemike]

The I am with Bengamin: A scene would really help.

[Elias2019]

Hi, are you able to share a zipped example of your scene?

Thanks man, now I was preparing the scene as Bengamin mentioned. Things totally look out of control when working with Corona lights and Xpresso, I don't know really.. maybe you can figure it out by taking a look at the scene example, thanks.

[Cinemike]

Thx for the file.
I got two freezes with the IR already (in a slightly modified file) and I think I need to investigate more what is going on here.
I am also curious what the Chaos team will find.

[Elias2019]

Thanks man, that's great. Once I was accidently able to get some results from the Corona Light and Xpresso so I baked it (using the Timeline function>bake) to use in another scene because of the Sound Effector inability in setting start/end frames (that's a bad drawback/limitation in C4d), and when I merged the Corona Light with its Xpresso in the new scene again it was not possible to use a Range Mapper with it, it totally didn't work, but something interesting happened!

In fact it was possible to increase or decrease the baked Corona Light intensity by adding it into the Corona LightMix that's a huge benefit of LightMix but from my side there is also a minor drawback, because I myself apply all the lightmix values/setup to the scene before the final rendering in fact I remove all the lightmix passes from MultiPass to decrease the render time but this way and in this case at lease the baked Corona Light pass should exist in the lightmix..

[Beanzvision]

I had a look at the file and rendered it out. Is this what you are expecting to get?

[Cinemike]

@Bengamin: Have you tried the scene in the IR a bit? I will upload a scene ASAP that SHOULD freeze C4D, but I won't have time before monday, I think.

[Elias2019]

I had a look at the file and rendered it out. Is this what you are expecting to get?

Thanks man for your effort and time, honestly speaking I can get that result but the problem is that it works very random, also more important it doesn't work with Range Mapper.. It's sort of out of control..

[Elias2019]

New update:

The baked Corona Lights don't even work with LightMix (to compensate the lack of Range Mapper with Corona Light) and everything is messed up..

[Cinemike]

I could not replicate the freezes in IR after the weekend anymore.