Promax Render

[Elisabetta Buendia]

Ihave the latest Apple MacBook with Apple silicon, 96GB of RAM running Ventura. I am using the most recent build of Slicer for Mac from 2023-4-25. My fairly large data sets are rendering well, though slowly, using the CPU, but when I swap to GPU the volume is a uniform prism of color. Here is an example data set of a clingfish.

Hi all. Just got the new macbook and been loving the speed. Was rendering out deliverables like it was nothing when suddenly... that stopped? Render times increaased exponentially for just about no reason? I've restarted the computer and installed an update, moved clips into new sequences but issue persists. Occuring in both AME and natively in Premiere Pro.

I understand that I should be super stoked that I'm working with 6k and 4k footage and its only taking a couple minutes for each export. But I have to make like 50 of these so every second counts, trying to get to the bottom of why it was initially so fast and then randomly dwindled.

Sorry for your issues. Can you monitor the memory usage? Can you restart between encodes to clean up the memory? I am trying to find the root cause. I will file a bug if I have a repro case with media.

For sure - these are all fast times when compared to my old machine. What I meant by slow is that comparatively, I was seeing 20s exports for 1 min videos initially and now that export time has crept up to about 1 min. I'm just curious if there's any reason for this when timeline settings havent changed - perhaps a cache or something else that might be clogging it up.

Would you be able to take the times for both versions you were looking at and try to export direct & via AME? I am very much interested in those four numbers. They might be worth a performance ticket.

Spoiler: the answer is extremely well; all of the renders in the post were rendered on the 14-inch MacBook Pro with an M1 Max chip.Here is a screenshot of Takua Renderer running on the 14-inch MacBook Pro with an M1 Max chip:

The first M1 Max spec that jumped out at me is the 64 GB of unified memory; having this amount of memory meant I could finally render some of the largest scenes I have for my hobby renderer.To test out the M1 Max with 64 GB of RAM, I chose the forest scene from my Mipmapping with Bidirectional Techniques post.This scene has enormous amounts of complex geometry; almost every bit of vegetation in this scene has highly detailed displacement mapping that has to be stored in memory, and the large amount of textures in this scene is what drove me to implement a texture caching system in my hobby renderer in the first place.In total, this scene requires just slightly under 30 GB of memory just to store all of the subdivided, tessellated, and displaced scene geometry, and requires an additional few more GB for the texture caching system (the scene can render with just a 1 GB texture cache, but having a larger texture cache helps significantly with performance).

I have only ever published two images from this scene: the main forest path view in the mipmapping blog post, and a closeup of a tree stump as the title image on my personal website.I originally had several more camera angles set up that I wanted to render images from, and I actually did render out 1080p images.However, to showcase the detail of the scene better, I wanted to wait until I had 4K renders to share, but unfortunately I never got around to doing the 4K renders.The reason I never did the 4K renders is because I only have one large personal workstation that has both enough memory and enough processing power to actually render images from this scene in a reasonable amount of time, but I needed this workstation for other projects.I also have a few much older spare desktops that do have just barely enough memory to render this scene, but unfortunately, those machines are so loud and so slow and produce so much heat that I prefer not to run them at all if possible, and I especially prefer not running them on long render jobs when I have to work-from-home in the same room!However, over the past week, I have been able to render a bunch of 4K images from my forest scene on the M1 Max 14-inch MacBook Pro; quite frankly, being able to do this on a laptop is incredible to me.Here is the title image from my personal website, but now rendered at 4K resolution on the M1 Max 14-inch MacBook Pro:

The wider takeaway here though is that in order to give the M1 Max some real competition, one has to skip laptop chips entirely and reach for not just high end desktop chips, but for server-class workstation hardware to really beat the M1 Max.For workloads that push the CPU to maximum utilization for sustained periods of time, such as production-quality path traced rendering, the M1 Max represents a fundamental shift in what is possible in a laptop form factor.Something even more exciting to think about is how the M1 Max really is the middle tier Apple Silicon solution; presumably the large iMac and Mac Pro will push things into even more absurd territory.

To conclude for now, here are two more bonus images that I rendered on the M1 Max 14-inch MacBook Pro.I originally planned on just rendering the earlier three images in this post, but to my surprise, I found that I had enough time to do a few more!I think that kind of encapsulates the M1 Pro and M1 Max MacBook Pros in a nutshell: I expected incredible performance, but was surprised to find even my high expectations met and surpassed.

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Hi Guys,

New to the forum and new to Blender.

I am running Blender 3.2.2 on a MacBook Pro M1 Max , 32 GPU, 64G mem .

I have had experience with 3D Studio many many years ago (27 actually) but decided to jump back in with Blender and see if I can jump start the creative animal again.

I was wondering if there are any specific settings in Blender that will take advantage of the M1 Max chipset and GPUs. Donut render at 256 setting took about 12 sec a frame.

not sure how that relates to everyone else.

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