Topics

1

[C4D] General Discussion / Issues with Live Link to Vantage

« on: 2025-02-19, 20:16:23 »

Hi,
Since a fews days, I dove into the exchange with Vantage, and I have some questions regarding compatibility.

If I am not mistaken, it seems there is

1) no support for other mappings but UVW? so not for Flat/Cubic, etc...? That is very painful IMHO ;-)
especially when materials are applied to a null and objects inside of it.

2) no support for PNG Alpha layers in Opacity Channel? It should work I guess, I have the option selected in the preferences...

3) no support for C4D Variation Shader

5) no support for Shadow Catcher?

6) no support for inverting Black and white value in a c4d texture slot (See Attachment Black-White-inverse) It does work when in a corona color correction shader and inverting there, but my library has a lot of these... :-/

7) different background images for each camera?

8) no support for volume channel in glass materials and (pool) water / liquid materials ?

9) I'm struggling with instances for lighting and getting artificial light in my scene. e.g. all spots should be plain geometry and the light source can be a render instance? This is somewhat different from coronaC4D where the spot should be a normal instance. I made a test file with all possibilities to see which combination works. It seems it is only going to work without instancing the lighting fixtures, and using plain geometry for the spot with a render instance light?
In the test file I am also attaching, try changing the name of the corona light whiole in Live LInk. Even though there is nothing directly instanced to it, lights go off...

10) no support for textures linked to asset browser, requires absolute paths?

11) This is more of a question than an issue; If you have an updated C4D file and want to recover all of the prior made animation and additions, the way to go is to export it again to a new vrscene and then load the prior made Vantage file 'as Config only' ?

Thanks for some insights!
Koen

PS: maybe there can be made a general forum category for the coronaC4D-to-vantage stuff? 

2

[C4D] I need help! / Scatter following slicer material cutouts

« on: 2024-11-13, 12:05:11 »

Is there a way to make a scatter follow cutouts made with the slicer material?

3

[C4D] Feature Requests / Instancing of sun and sky

« on: 2024-05-31, 12:19:59 »

possibility to instance corona sun and sky.
It's possible to instance of course, but the light does not correspond to the original.
Also not working when instancing a parent-null instead of the sun/sky object itself

Making it editable again crashes c4d

thank you for your consideration
 

4

[C4D] I need help! / crash on IR when status 'cleaning up'

« on: 2024-05-22, 20:43:25 »

Hi, since a couple days, I'm having trouble rendering in IR.

Cinema crashes when the number of configurated passes is done and the image is in cleaning up phase. if I set to 15, it crashes then showing 'cleaning up',
if I confige in render settings to go to 45 passes, it crashes then showing identical status.
It keeps rendering when set to 0 passes.

It happens only when working while rendering in IR.
So I start C4D, open a project, start rendering IR... all good.
now do anything like changing cameras or adding a boole for some ceiling cutouts, then when it reaches 15 passes: bam, crash

Already restarted my computer, and I have this issue on several projects and also on my colleages pc
I haven't installed anything new in the last weeks

is this a known issue? thanks for any help...

PS: win10 x64, 256GB Ram, AMD threadripper 3990X/3970X corona 11 HF1

5

[C4D] Feature Requests / Corona camera Lister options

« on: 2024-05-17, 23:13:33 »

maybe add the following to the optional columns in the corona lister cameras tab:

- Film Offset X (I could use this in the camera lister when tweaking all the cameras one by one)
- Film Offset Y
- Focus Distance (Very handy to set driver/set driven in xpresso connecting this to the 'near clipping')

thank you for your consideration

6

[C4D] I need help! / different UV mappings for select material layers

« on: 2024-05-15, 23:31:30 »

I would like to simulate 3 different types of roof tiles on a house.

The roof has already UV mapping for the first tile which has correct size/mapping.

Is there a way to resize the UV lengths in the material setup of the other 2 materials?

thanks for all tips,

7

[C4D] Feature Requests / legacy material support for Scene converter

« on: 2024-05-15, 11:15:29 »

Hi,

please bring back the option to convert c4d materials to legacy materials instead only physical
OR
the option to convert a physical material to a legacy material in the advanced tab.

thank you for your consideration, 
koen

8

[C4D] I need help! / wire shader angle restriction

« on: 2023-10-06, 12:30:13 »

Hi, is there a way to restrict the wire shader effect to let's say all 90° angles, and thus not for the triangulation of certain plain surfaces (where untriangulate function doesn't work)?

thanks for any suggestions!
Koen

9

[C4D] I need help! / Corona pattern overlap

« on: 2023-04-11, 08:24:16 »

Hi, is it possible to use corona pattern with overlap of the pattern object?
Let's say on a uvw tiling of 20x20cm, to have a 5cm overlap of the object at the top?
p.e. roof tiles that have a specific tiling but a visible overlap. When I tried to, the roof tile was cut of and didn't give a good impression.

I understand that I can make the cutt-off part as a part of the pattern object, but then I couldn't use random texturing with a variation shader on the tiles, right?

10

[C4D] I need help! / distance shader & active camera

« on: 2022-11-29, 11:28:46 »

can you use the distance shader with the active camera as the 'from object' ?

I have a really large scale sc

11

[C4D] I need help! / Frontal reflection on sky stays too shiny on matte materials

« on: 2022-09-12, 12:27:09 »

Hi
I'm including a testscene so you can test, but I'm experiencing too shiny reflections on matte materials when using a frontal mapping on a sky, in the case where I have a seperate reflection object.

To clarify the use in my current project.
I have a building to visualize and received high level drone shots in all directions. So I'm using these drone shots as a background. Because I want the 'correct' reflection in the large glass facade, I'm using a different sky object for only reflections, and using a photo in opposite direction for that. This gives me more or less a good impression of the reality.

However when using the frontal mapping on the sky, the reflections not only show up on the shiny glass, but also on the window frame (which is a relatively matte <> satinated material) as shown in the printscreen image below. Also when making it really matte material teh sharp reflections stay

Am I doing something wrong or is there another way/workaround to do this besides using a very large plane object.

Thanks, Koen
 

12

[Scatter] I need help! / Clean grass edge near pool border

« on: 2022-07-03, 12:45:42 »

Hi everyone,

Is it possible, using chaos scatter, to get a cleaner result near the pool border, just by using the scatter?

I added the pool border as a apline in the spline exclude field with 12-14cm  and scale and density at 100%. The scale doenst seem to have much effect with this thin border?
When I change the seed, it can get a bit better but never clean enough.

I can only make it better by using a linear cloner to make a straight finish.

I'm attaching images with and without the linear cloner to illustrate

PS: as a side question, is it possible to change the size for an individual scattered object when they are proxies from the cosmos browser?

Thanks,

13

[C4D] I need help! / Shadow catcher compositing for grass edge

« on: 2022-05-04, 12:25:38 »

Hi,
I have been working on a technique for making grass with scattered grass blades on the border, for large scale projects.
It works pretty well execept the backside which is not taking the shadow effect, so these shadow parts always require extra photoshopping.

When you turn to the other (sun-)side the shadows work fine, but on the shadow side the shadow is not taking into account.

in my project, I'm replacing the green by a 360° photo.
there's a printscreen included from a real project where you can see the problem

Is this a corona limitation, or am I just doing it completely wrong (v7.2)?
thanks for any help !

14

[C4D] Bug Reporting / Projector shaders make IR crash all the time

« on: 2021-11-04, 22:32:12 »

Hi ,
I just wanted to let you know that in my personal case, the C4D projector shader is my main reason for the many IR crashes I have. With an AMD threadripper 64-cores and 256GB I hoped to work without problems using the IR on large scale projects, or again with upgrading 6 to 7, but it seems I finally found the actual problem which was the reason for crashes on both small and large projects.

I use a lot of furniture and decoration objects from designconnected.com in a subscription, but all the 3D-models have as a standard projector shaders in the materials. When I convert the c4d materials to corona (legacy) materials, the projector shaders are also included.
I easily had about 15 crashes a day when using IPR, until I recently cleaned up a project (that kept crashing instantly when starting the IR) from all projector shaders. This was a pretty time-consuming job to do with about 1000 materials to check all channels and nested fusion or layer shaders.
It took me a few crashes and restarting the checking over and over to eliminate all the projector shaders from the the project, but once done, I was sooooo relieved and impressed to be able to work an entire evening without crashes in that very same project... very stable at last.
With the next following projects I have the same results...

Maybe other people should check this too when they experience many crashes in IR.
I hope a solution for this problem will come with corona 8 or 7HF3 ;-D
best regards

15

[C4D] I need help! / make specific trees semi-transparent

« on: 2021-06-25, 13:30:54 »

Hi,
I'm working on a project where I would like to make some specific trees semi-transparent to show what's behind them.
I tried making the materials transparent, but with 3D trees, when too many leaves behind each other, the effect of transparency is lost (in the centre, on the edges the effect is as expected)

So, I was thinking I might need multipass (mask the objects?) and compositing, but (a bit shamed to admit ) I have never used multipass before so very newbie about that...

Can somebody explain me, what the best way is,  to do this, by detailed step or example file?

many thanks!