Memory Optimization for Beginners - Blender 2.8

Memory Optimization for Beginners – Blender 2.8


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When it comes to 3D modeling and animation, making sure that your scenes & models don’t use a lot of memory at the end of the day is very important. Because even though it doesn’t really matter when you’re starting out, when you work professionally you need to keep your vertex counts to a minimum.

That’s only possible if you know about memory optimization in the first place.

Let me know if I did anything wrong! There’s always room for improvement!

21 thoughts on “Memory Optimization for Beginners – Blender 2.8

  1. i don't mind memory usage and my gpu is slower than my cpu (3900x) my greatest problem is the loading time before start rendering. Even in the lowest samples is still takes like 30 seconds to load and 5 seconds to render. How can i instruct blender to keep the data in ram so i will not have the loading time ?

  2. I really want to use Cycles for rendering but my computer can't handle it. It always crashes whenever I switch from Evee to Cycles. How do I solve this? Is there any way?

  3. Umm, you can perfectly render scenes that exceed your VRAM with your GPU. Then it just uses your system memory, but that will make render preperation for each frame slower. My GPU has 11GB VRAM, but i am currently rendering a scene that takes about 32GB with only the GPU. Works perfectly.

  4. What about for very high poly simulations with high-resolution HDRi's? I am doing a high resolution FLIPS fluid render with full white water particles, and a 16k HDRi

  5. I am having the exact same issues you mentioned at the end. I just made a 1,000,000+ verts sculpt character and I am lagging so hard when adding animation on it. Others suggested to generated a normal map on a decimated model but I don't think it will work well on a moving character. Is there any alternative methods I can try or I should give up sculpting and make a low poly character instead?

  6. I have a gpu with 3GB of memory and am rendering a scene just barley reaching the tip of what my gpu can process, before I played around the setting, the application constantly crashes since it is a complex scene. I tried lowering the settings all the way and moved objects to different layers, but to no avail and layers can cause an issue with lighting/shadows so it must be done carefully. I did figure it out eventually after doing days of testing with my current gpu and was almost at that point to get a new gpu which was a bad decision, so memory optimization is very important when it comes to rendering and it is important to get the scene to meet your gpu requirements. This video did a great job on explaining just that.

  7. "Cancelling takes time so I am sad now" hahah! One of these days the Blender Development team will give us the "fast render cancellation" feature! The Windows GPU VRAM memory reservation thing you alluded to did sound interesting. Thanks for the lesson on memory optimization.

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