Hi everyone,

I'm using a MacBook Pro M3 Pro (18GB) with Cinema 4D 2025 + Redshift.

I'm rendering a very simple product scene (CD jewel case, a couple of area lights, 2 dome lights, a few 2K textures) at 1920×1080, but a single frame takes 15–20+ minutes.

I also noticed Cinema sometimes jumps to 18–20GB RAM and starts using swap. If I close and reopen the project, RAM drops back to ~4GB.

Is this normal on Apple Silicon, or does it sound like a Redshift/Metal issue or memory leak?

Has anyone experienced something similar?

I've been using c4d and redshift for like 2 weeks now. Everything was going fine till today.

I wanted to render this scene, and this error keeps popping out. Is there a solution to this? I've tried every single solution on the book, especially the one from reddit but still no luck.

Can anyone help me? WaAaaaaaaaAaaaaa

One of my tributal vdeos to trionda done in houdini and redshift

I feel I'm pretty decent at modelling and Texturing but I feel like this can only be done really with parametric modelling such as grasshopper. Or is there a simpler way?

2nd Image is my attempt with modelling, not sure how I'd do it with texturing I've tried using vertex maps and gradients but can't seem to get it right.

I'm trying to recreate the attached renders in Cinema 4D 2026 + Redshift, and I'm getting close, but I can't seem to get the glass material and lighting exactly how I want it.

The reference images are AI-generated, so I know it's not 100% physically accurate, but I need to get as close as possible for a project.

I'd really appreciate any advice, node setups, lighting diagrams, or example scenes. Even general direction would be incredibly helpful since I'm trying to reverse engineer an AI render into something physically plausible.

Thanks!

Looking for some advice on upgrading/replacing our render machine.

I work on a small motion design team. Three of us do 3D work, and a few years ago I built a dedicated render machine with a Threadripper CPU and 3x RTX 3080s.

Recently the GPUs started overheating. I've tested each card individually and they all still overheat, so I'm assuming the cards themselves are reaching the end of their useful life.

My original plan was to replace the GPUs with a single RTX 5090, but I suspect the older Threadripper would become a bottleneck. That would likely mean upgrading the CPU, motherboard, and possibly RAM as well.

The thing that's making me reconsider is that I recently switched from a Windows laptop to a MacBook Pro with an M5 Max and have been really impressed with it. One of my coworkers suggested that instead of rebuilding the render box, we look at a Mac Studio or Mac mini.

Most of our 3D work is done in Cinema 4D and Redshift, but we also get some fairly heavy After Effects projects. The current render machine was built mainly with GPU rendering in mind and isn't particularly great for larger AE jobs.

I'm curious what people would do in our situation:

• Rebuild the render machine around a 5090?
• Buy a Mac Studio?
• Something else entirely?

Thanks!

Currently our Render machine looks like this
AMD Threadripper 1900X
3x 3080 turbos
ASRock X399 Taichi ATX sTR4 Motherboard
Corsair Vengeance LPX 32 GB (2 x 16 GB) DDR4-3600 CL18 Memory
Samsung 870 Evo 1 TB 2.5" Solid State Drive
Corsair iCUE H150i RGB PRO XT 75 CFM Liquid CPU Cooler

I wrote a simple python script that monitors the Redshift log and communicates to openrgb python to change your computer motherboard led colors based on the rendering state. Feel free to modify for your own uses.

Works in both the live view and picture viewer rendering. I used task scheduler to launch/kill it on c4d launch/close. Could in theory connect to office lighting controls X_X

https://github.com/rileyharmon/Redshift-Renderer-RGB

Hey all. Wanted to reach out and ask if anyone has any recommendations for tutorials on creating procedural shaders from the ground up, ideally in Redshift. I recently watched Marc Potocnik AskTheTrainer session from a couple years ago where he demonstrated how he created procedural shaders for a street that was really impressive. I'd love to experiment with this more but I struggle with finding the best combinations of noises and nodes for creating patterns that resemble real, detailed surfaces.

Hello all,

Not sure if this is the right place to post this but I'm experimenting with Redshift and Vectorworks. I'm having trouble creating / using an area light, or placing a light that lights up an indoor area rather than showing a lamp, and also I'd like to have a spotlight to light an area from a distance. Any ideas?

Note that I'm very only just starting on Redshift & vectorworks, but am comfortable with Vectorworks...

Thanks in advance for any pointers / ideas.

I’m excited to share with you this food cgi personal project. This piece was created in Houdini using RBD and vellum softbodies simulations, and rendered with Redshift. All environment assets were modeled from scratch.
RBD setup for the opening shot. Tender drop simulated with Vellum Soft Bodies.
I also focused on food shading, composition, lighting, and packshot animation.

Feedback are welcome 🙂

Hello! In houdini I was using RS Standard Volume and working on some cloud renders. When I place a BG cloud behind my hero cloud I get these black shards on some edges of my volume. When I remove the background clouds it goes away but how do I fix this to keep both FG and BG clouds visable?

Hi everyone,

I’ve run into a rather strange issue.

I’ve noticed that when I use a simple textured plane as a background, with a Ramp node connected to the Emission channel, the final high-resolution render (using Very High quality settings) shows visible lines or banding artifacts. As a result, the color gradient doesn’t appear completely smooth and clean.

Has anyone experienced this before or found a way to fix it? I’ve been troubleshooting for the last 24 hours and have tried just about everything I can think of, but I haven’t been able to solve it.

Any suggestions would be greatly appreciated.

Thanks!

I made a utility for myself because I was tired of losing renders due to a lack of VRAM
You can download it at the link https://veksell.gumroad.com/l/HWmonitor