Blender is known for its long-quality rendering, especially working with high-resolution images or complex scenes. However, there are several techniques would help you render your Blender scene faster while still maintaining some quality.
Tips on Speeding Up Blender Renders
GPU Rendering Animation
If the hardware supports it, switch to GPU Compute for rendering (see the Render Properties tab). GPUs are much faster than CPUs when dealing with complex scenes and significantly reduce rendertime. CUDA and OpenCL compatible graphics cards are required for NVIDIA’s software drivers or AMD’s.
Refine Sample Rate: Cutting back the number of samples often makes a large difference to render times. Though more samples produce a clearer picture with fewer samples you can get by since Denoising can be used to smooth the effect (available in both Cycles and Eevee).
Improve Light Sources and Shadows: Simplifying your lighting setup will help reduce render times. Cutting down on the soft shadows and reducing the number of light sources still in operation can save both processing power requirements and memory usage.
In the Light Paths settings, limit the number of light bounces possible. This can be a major factor affecting how long a file takes to render. Lowering the Max Bounces value helps speed up rendering.
Utilize Tiled Rendering: In Render Properties regulate the tile size. For GPU rendering, use larger tiles ( e.g. 256×256).For CPU rendering, use smaller ones ( e.g.16×16). Tiled rendering helps balance the workload on multi-core systems and speeds up the process overall for doing geometry calculations.
Use Textures and Geometry sparingly: Reduce the texture size for distant objects. Use simple models to replace out-of-view objects. This helps both memory and processing requirements, again saving valuable time.
Activate the Simplify feature: Go to the Scene Properties tab and enable the Simplify option. This will reduce both subdivision levels and texture resolution in previews as well as final renders, particularly useful when dealing with complex models.
As long as you follow these guidelines, you’ll be able to cut down your render times significantly without undermining image quality too much in Blender.
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