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Someone, once upon a time left this here Growth Diffusion.c4d and I kept it. I think it will help you. It has a different workaround and works in 2025.... but not as it should be 😒. It works fine in 2023. 2025 has some serious allergy to cyclic references...

like these. Is this possible to do with the capsules?

oh cool !! Yeah I need a setup to fill a specific volume so that the growth fills it and is contained within any give mesh.

@bez The setup you have is causing cyclical dependency which is undesired and will lead to issues in animation/rendering. There is a differential spline growth tutorial here It looks like the capsule you purchased is based on that tutorial? Anyway, when you say "volume" you basically want growth contained within closed mesh, correct?

what version of c4d does it actually work in? I tried it in an older version of R18 that I keep on hand for opening older file formats and it didn't work in that either unfortunately. I don't have any other older versions currently installed, but I could install a version where it works possibly so that I can do what I need to do while we work on figuring out a new solution that works in 2025...it would be amazing to create a capsule that can do this...I am looking into trying to build one, but I sadly don't have much experience with programing and capsules/nodes building...so could be a while...lol

I'm trying to create something using particles but my computer freezes... Also that "fix" blocks my attempts to intervene during animation playback...

I found this: (see video below) I purchased the Capsule file from his Patreon. It's very fast and fun to play with, unfortunately it doesn't currently work to fill volumes. I reached out to him to see if it might be possible to implement, and he was quick to respond that it doesn't currently support volumes but is an interesting idea. I wish I new how to create these capsules etc and had the knowledge to go in and expand the capabilities myself....but maybe there is someone out there that can ....

Thanks for your reply. My mistake... At some point in the project I unchecked unnecessary data types for the particle cache to save sim times. But Actually Pyro needed more that color & velocity... It's now all in order. Sorry for the trouble, & thanks for trying to help !

Yes I just need to create a static mesh with it's volume filled with a non intersecting entanglement.

Hi there, i'm currently working on very big projects, requiring a lot of cpu & gpu capacity. With a lot of The thing is I can't do online rendering if needed, because the simulation caches are too big to upload. So i have to do it all. but I have no security in case of problems / hardware issue when tough deadlines are there. So i would like to meet someone who could help in case of emergency. I live in Berlin - Kreuzberg. Any colleague would be greatly welcome ! Cheers, Julien

Seems like there's a change in C4D 2025 concerning updates during animation which prevent this effect from happening. There was another incident like this which I addressed to a beta tester. I don't know if this "fix" was intentional or not. I'm working on a solution for this... Do you need it for the Reaction Diffusion effect or for the static entangled mess ?

Slightly mystified how we can help if we don't even have your scene file, but nonetheless I shall try.... Have you done everything in this video, specially relating to cache output settings ? CBR

I must render a dragon firing up everything as video background for a live theater show, All my works went fine with Live RS Renderview. Then I want to cache the Pyro, it doesn't work. Its computing but creates empty cache files. Then I wan to render and I get parts of the fire cut in squares (not aligned with the buckets at all). My deadline for preview is tomorrow... please help 😞

Hi I downloaded the files and was trying to adapt this to a new volume but can't figure out where you change the volume object that you want to fill. Also in 2025 it doesn't seem to fill the volumes at all...it just kind of wiggles. Anyone have any solution/fix for using this in 2025? I would love to get this working!!!!! Thanks

Is there some specific reason this needs to be done in code or nodes ? For example "I want to hide the mechanics because I want to make a plugin" or "I like coding". Would you be interested in a scaleable, procedural solution that is not Python nor Node-oriented ?

Ah, I understand now. Still, nodes could be easier and way faster solution (than Xpresso or Python) for what you need. Can you, just for sake providing insight into your work, and I am pretty sure there are quite a few people interested in particular work you do, provide some requirements? Even generic ones would work. Nodes can really provide you with fully parametric, customizable, user oriented rigs. If anything, we can identify weak points for particular task and improve the nodes themselves 🙂

Okay, perhaps I'm cheating by asking this here but since I'm figuring C4D users have more experience with cryptomattes than the average After Effects user I thought I'd start here first. I have an RS Evironment which is adding some nice delicious volumetric lighting to my scene, looks great. Unfortunately it kills my matte (the atmosphere doesn’t occur at the matte transition so it’s not like the vol. lighting gets cut off). I found that if I spit out a cryptomatte it ignores the environmental effects, maintaining the transparent background, great, I can comp in the background behind the render again. Thing is, I essentially want to select all of the objects to make the matte, but I’m not about to click select them all one at a time in the Cryptomatte effect in After Effects, and there is no click-hold-drag a marquee around the entire image to select them all. How would one go about grabbing all the objects to activate them all as a matte? Unless there’s a non-cryptomatte way to make this matte you’d recommend instead, one that gets cooked with the beauty (not a second render) and ignores the environmental vol. lighting. If I’ve overstepped asking this here lemme know and I’ll crawl over to the Adobe forum. Thanks,

Scene Nodes would probably work well if it was just a simple sliding door, but this is just a small part of a much bigger script. Its a Python Generator for a modular wall that I'll use in my work as an exhibition/ booth designer. It's almost 3k lines of code already. I have an Xpresso version of this modular wall, it works fine, but the viewport becomes very laggy when thare are to many of those and I try to move something on the screen. I tried to convert it to Scene Nodes for performance reasons, but a realized that it's something very complex to recreate this way, that's why I decided to go with python.

Near year ago I saw on Likedin that Maxon had job for architectural visualization person who will create new strategy for this sort of marketing and product strategy. ArchViz from years was a domain of Autodesk. Maxon want to be a part of this market too. This is why more and more capsules are related to this business. I found link : (22) Senior Product Manager, Architectural Visualization (m/f/d) | Maxon | LinkedIn

I don't know anything, but I would guess that is just a marketing strategy. Maybe with the idea to expand Cinema's reach into Archviz more (?). Maxon is owned by Nemetschek which also makes Vectorworks. Redshift was added to Vectorworks a few years ago, but not a full implementation, so there are benefits to be had from both sides, I think. They also mention wanting to eventually open it up to other CAD/BIM solutions, so Vectorworks is just a starting place. I use Cinema for Concert design - can't say it was really made for that, but it works great, so I wouldn't read too much into it. Right now there is a SEND TO CINEMA4D button in Vectorworks - I think this is a larger progression of that concept, like live linking. All will be revealed in a few weeks.🤷‍♂️

I am in the same boat. Basically every job under NDA here. I put my stuff behind a password on a personal website. Same for my reel. So it cannot be publicly viewed. Problem is you have no visibility as a freelancer this way and need to approach potential customers actively. But well...what can you do.

I think you should also post the Attributes of your IK tag. If the script needs to replicate your hand-made scene then it needs to do it in every detail. If someone is to read this code and find an omittion he also needs to know the exact parameters the IK tag is given.

I have an other question. Why isn't MAXON ever mention this forum ? Twice a month there's an "Ask the Trainer" live. Every week there's "Rocket Lasso" live. Every week there's a "VFX and Chill" live. Why isn't anyone ever even make a tiny reference ? People ask a ton of things that the presenters for various reasons dodge. Those could be redirected here. Not all questions worth a screen time. Should I herald the site in the comment section of YT chat ? I don't mind. But I don't want to anger the presenters or the Maxon supervisors of the shows.

I think we're the older crowd who have been used to forums for a long time. Younger generation loves discord, IG and Tiktok for answers. Platforms like that make me feel like I'm getting ADHD. Stuff is all over the place and you may never find posts after viewing them once. With IG and tiktok, if you don't like or save a post you'll probably never see it again.

Not into python so the question is would nodes work for you? We would need to have an example of what foldable door you are after, nodes are very good for this type of work.