: Integrated GPU-based denoising for fast, clean previews in the Interactive Preview Render (IPR) window.
: You can still find legacy versions like 2.3.1 by visiting the Arnold Downloads page and looking under the legacy section. Arnold for Cinema 4D – Overview Solid Angle Cinema4D To Arnold 2.3.1 for Cinema4D R18-R19
Solid Angle's was a significant update released in early 2018, specifically designed for Cinema 4D R18 and R19 users. This version introduced powerful features that transitioned Arnold into a more versatile engine for both photorealistic and illustrative styles. Key Features in Arnold 2.3.1 This update focused on efficiency and creative flexibility: : Integrated GPU-based denoising for fast, clean previews
: Automatically focuses more samples on "noisy" areas of a render, reducing overall render times without sacrificing quality. : Integrated GPU-based denoising for fast
: Sites like Greyscalegorilla offer extensive beginner guides for the C4DtoA workflow.