Messages

1

[C4D] I need help! / Re: Global Volume (Fog) reduces & removes Hdri Reflecions

« on: 2023-05-24, 16:00:53 »

Hi

Oh thank you, haven't used Corona in a while as my PC setup wasn't sufficient enough to render with CPU

Will check it out!


Greetings

2

[C4D] I need help! / Re: Global Volume (Fog) reduces & removes Hdri Reflecions

« on: 2023-05-23, 18:23:28 »

Hello- is there any Updates to this issue?

Been a long time now since i posted this, but something is clearly wrong with how the reflections react when Volume is in play

Thanks!

3

Gallery / Re: Mercedes EQE - Casies valley

« on: 2022-08-12, 01:31:58 »

Very clean work !

4

[C4D] I need help! / Re: Global Volume (Fog) reduces & removes Hdri Reflecions

« on: 2022-02-07, 21:15:57 »

Okay i believe I understand-

I attached Screenshots where i placed the lights (since in this Renault studio scene the lights are the only "reflecting thing") really close to the car ( especially Front tire and Door Plastic Trim)

Both the Tire and Plastic Trim Material have IOR of 1.52

I also made a screenshot with Volumetrics and the reflectance on both materials turned off- The effect seems very similar to "volumetrics on & activated reflectance on both materials."
As if only the Diffuse channel catches the light, and no light affects the reflectance.


And one Viewport Screenshot showing the placement of the lights


Is this behaviour really to be expected?

Thanks
Andrej

5

[C4D] I need help! / Re: Global Volume (Fog) reduces & removes Hdri Reflecions

« on: 2022-02-07, 16:32:10 »

Hi Jan,

It does make sense that light travelling through fog becomes "weaker" by an amount, depending on the distance of the light source and the density of the fog, and thus the reflections get weaker-

But no matter how i set both the Absorption and Scattering settings, all the reflections from materials with an IOR of ~ 1.5 and less are eaten up to the fullest. Can Changing the settings of Absorption and Scattering make that stop? Because you mentioned that my previous test file might be incorrectly set up-

I know i could make the IOR value of the Materials higher, but it would be rather tedious when working with multiple materials on for example a car, to get a fog shot, just to change it back when going back to a "fogless" environment.

Down below i attached two reference screenshots of a Car in a Studio environment, that showcases the issue side by side.

The Glass, Tires, Plastic loose pretty much all, if not all of their reflections.



Thanks!
Andrej

6

[C4D] I need help! / Re: Caustics not Visible in Photoshop

« on: 2021-12-29, 23:10:00 »

Hi

Thanks for both of your suggestions, i found the multipass configuration and got the caustics pass to work :)

Andrej

7

[C4D] I need help! / Re: Caustics not Visible in Photoshop

« on: 2021-12-28, 19:01:02 »

Hi Jan,

Just when i mentioned incompetency i don't upload my screenshots haha.

there you go

thanks!

8

[C4D] I need help! / Caustics not Visible in Photoshop

« on: 2021-12-28, 03:49:37 »

Hi there,

I tried out the fast caustics solver and i love the results.

Unfortunately, due to my incompetency, I don't get why they are not visible in my Photoshop file ( see attached image ).

I saved the file as a 16bit PNG with Alpha Channel

When i save it out as an EXR, the caustics are visible, but there is no Alpha channel.


I also tried "caustics only in caustics pass" but i didn't see further options when saving the file, nor a "caustics only" pass in the picture viewer

Thanks!
Andrej

9

[C4D] I need help! / Corona Decal - Tutorials?

« on: 2021-12-16, 21:35:02 »

Hi there

Since Corona Decal has been added to the most recent Cinema4D Version 8 Daily build, i am eager to find out how to use it, but i can't find any resources online how this feature works, not even for 3DsMax-

Maybe i'm not good at finding what i am looking for, but that it's burried so deeply?

Help would be appreciated!

Thanks!

10

[C4D] General Discussion / Re: Curvature Map 1.0 - Corona Renderer (Shader Effect) Available Now!

« on: 2021-12-02, 14:31:47 »

Hi there!

Is this still available?

I can't download it, because the google drive needs an access code, and requesting doesn't seem to work

Thanks!

Andrej

11

[C4D] I need help! / Re: Global Volume (Fog) reduces & removes Hdri Reflecions

« on: 2021-12-01, 11:53:58 »

Okay, thank you Jan!

Greetings
Andrej

12

[C4D] I need help! / Re: Global Volume (Fog) reduces & removes Hdri Reflecions

« on: 2021-11-30, 12:38:59 »

Hi burnin

Thanks for the reply!


Yeah, I forgot to mention that i am currently using the "Corona Renderer 8 for Cinema 4D (Daily Build 2021-11-10)"

Running a Intel i9 9900 KF
32GB Ram
EDIT: nvidia RTX2070Super
Windows 10


Example file is in the attachment ( also with the same HDRI used in the original post attachment- it's from Polyhaven.com and 100% free, so no problems with sharing it )

In my example file, global volumetrics are turned on, no reflections visible

Turn off global volumetrics in the scene environment settings -> completely different result, visible reflections

I also attached one more screenshot of that showcased here in the Example file

13

[C4D] I need help! / Re: Get Rid of Fireflies in Animation

« on: 2021-11-29, 20:42:43 »

Looks very clean to me!

What hardware are you using, and how long did each frame render? Full HD resolution?

14

[C4D] I need help! / Re: Global Volume (Fog) reduces & removes Hdri Reflecions

« on: 2021-11-29, 20:40:51 »

Anybody got an idea?

15

[C4D] I need help! / Re: Global Volume (Fog) reduces & removes Hdri Reflecions

« on: 2021-11-27, 11:43:22 »

Another thing i noticed is the Windshield and Front lights are behaving funnyily, no reflections either, too dark