Complete Guide for Reducing Rendering Times at Blender 3D

Begüm Begüm Jun 23, 2020 · 3 mins read
Complete Guide for Reducing Rendering Times at Blender 3D

Blender is an open-source 3D modeling and animation software often used by animation artists, product designers, and game creators. Not only allow users to create 2D objects or characters and animate them to obtain 3D models, but Blender also has a strong community of artists and computer scientists behind it, constantly improving the code to deliver powerful software without the hefty price tag.

Beyond its popularity, Blender still has one major drawback for users: It can take a really long time to render projects when finalizing an intensive project.

Blender is able to use your computer’s central processing unit (CPU) or graphics card (GPU)—or both—for rendering. To eliminate render wait times, you might consider investing in multi-core processors and GPUs with a high CUDA core count.

Before you go out and buy expensive upgrades to your existing hardware, here are a few suggestions to help you minimize your rendering times.

Tip #1: Reduce Samples

While using as many samples as possible allows Blender to create clearer images and models, each new sample means another second to work on rendering it. By limiting the number of samples, you can greatly reduce your rendering time. Keep in mind that obtaining fewer samples will affect the quality of the final product, so it’s best to use this method for web-only projects instead of those that require viewing on larger screens.

Tip #2: Optimize the Tile Size

Tiles are small black boxes that appear on the screen when the blender rending the scene. Tile size is an important factor to minimize your rendering times. When you increase the number of tiles, the tile size will become small and it can focus on a smaller portion of your scene. And all cores work on the render until it’s finished without one core finishing before another. So, by optimizing the tile size your rendering time will minimize.

Blender was always capable of increasing the number of tiles, but recently with the code update, you could also change the tile sizes. GPU can only render one tile at a time, while CPU renders multiple tiles at a time, so for optimizing tile size it needs CPU.

Tip #3: Switch to GPU Rendering

The GPU, which was designed primarily for fast image creation, uses a graphics card for rendering. CPU and GPUs are basically similar in how they are handled. However, the GPU is much more powerful and, unlike CPU technology they can process the instructions of many cores from start to finish at the same time. This will allow your render times to be 10 times faster.

The use of CPU and GPU Rendering depends on usage necessities. The architectural industry may benefit from CPU rendering, which takes longer, but generates higher quality images in general. Moreover, industries that are specifically designed to manage complicated, graphics-intensive processing, virtual reality, and artificial intelligence innovation such as architecture, animation, film, and product design may benefit more from GPU rendering.

You can switch your Blender Render Settings with going into the Preferences - System - Cycles Render Devices from CPU to GPU. To utilize your computer’s GPU, you will need CUDA cores, which are an investment on their own… which brings us to our last tip:

Tip #4: Use vagon to Reduce Rendering Times at Blender

vagon provides you a personal cloud computer with powerful hardware. That means you can run intensive software like Blender even from a laptop so long as you have stable internet connection. vagon’s cloud-based computers come with up to 2 x 8GB GPU and 244GB of RAM, allowing you to turbo-charge your rendering process so you can save both time and energy.

Try vagon today to render your Blender projects x30 faster than your old computer.

Written by Begüm
engineer, marketing, tech and art enthusiast