With the Denoiser, you can achieve significant reductions in render time
for production-quality images.
The Denoiser uses a post-processing technique based on machine learning
to filter out noise from unfinished and noisy images produced with Fast and Accurate render modes.
To achieve increased performance from using the Denoiser, you need to reduce
the number of render passes. For example, if a scene routinely needs 500 passes without
the Denoiser, specifying 50 passes when the Denoiser is on may achieve the same
rendering quality. You may be able to achieve the same rendering quality with even fewer
passes using the Denoiser depending on your goal for the image. Actual reductions in the
number of passes, and therefore render time, depends on the computer’s hardware and the
scene rendered.
To use the Denoiser, you must have this hardware:
- NVIDIA® GPU (Kepler™ architecture or newer) with CUDA® 9.0
support
- At least 4 GB of video RAM
The following image shows typical results with Denoiser off (left) and on (right).
