Autodesk Arnold

Manage complex projects

Arnold thrives on heavy data sets and handles complex work with ease.

Render high-quality 3D images

Deliver stunning photoreal or stylized results in fewer clicks.

Get a robust set of tools

Save time with powerful shaders, operators, textures, and utilities.

Flexible and extensible API

Integrate Arnold into external applications and create custom shaders, cameras, light filters, and output drivers.

Universal Scene Description (USD) support

Maximize the power of USD with Arnold in production scenarios.

Imagers

Use Bloom, Light Mixer, Noice, and OptiX denoiser imagers to control lighting effects and automatically denoise after each render.

Stand-alone command-line renderer

Arnold has a native scene description format stored in human-readable text files. Easily edit, read, and write these files via the C/Python API.

Standard Surface shader

Produce a wide range of materials and looks with this energy-saving, physically based uber shader.

Standard Hair shader

Render hair and fur with this physically based shader, based on the D’Eon and Zinke models for specular and diffuse shading.

Alembic procedural

Render Alembic files directly without any translation with a native procedural.

Profiling API and structured statistics

Identify performance issues and optimize rendering processes more easily with an extensive set of tools.

Material assignments and overrides

With operators, override any part of a scene at render time and enable support for open standard frameworks such as MaterialX.

Built-in Cryptomatte

Create ID mattes automatically with support for motion blur, transparency, and depth of field.

Integrated OpenColorIO v2

Take advantage of OpenColorIO v2 for state-of-the-art color management.

Arnold GPU

Switch seamlessly between CPU and GPU rendering.

Subsurface scatter

High-performance ray-traced subsurface scattering eliminates the need to tune point clouds.

Hair and fur

Memory-efficient ray-traced curve primitives help you create complex fur and hair renders.

Motion blur

3D motion blur interacts with shadows, volumes, indirect lighting, reflection, or refraction.

Volumes

Render effects such as smoke, clouds, fog, pyroclastic flow, and fire with volumetric rendering.

Instances

Efficiently ray trace instances of many scene objects with transformation and material overrides.

Subdivision and displacement

Create smooth, curved surfaces with support for Catmull-Clark subdivision.

Open Shading Language (OSL) support

Use Open Shading Language (OSL), an advanced shading language for Global Illumination renderers.

Light Path Expressions

Get power and flexibility to create Arbitrary Output Variables with LPEs to help meet the needs of production.

Adaptive sampling

Use another means of tuning images to reduce render times without jeopardizing final image quality.

Toon shader

In combination with the Contour Filter, an advanced toon shader provides a non-photorealistic solution.

Denoising

Powerful denoising solutions offer you the flexibility to use much lower-quality sampling settings.