 Arnold for Cinema 4D 4.9.3 是一款由 Autodesk 推出的专业级渲染插件，基于 Arnold 7.5.3.0 核心引擎构建，属于一次包含多项新功能的重要小版本更新。该版本为 Cinema 4D 用户带来了定向曲线支持、Flow Render 云渲染中的转台动画与纹理烘焙功能，同时在渲染速度、GPU 性能、实例化效率以及非真实感渲染方面实现了显著提升。对于从事三维动画、视觉特效、产品可视化、广告包装以及建筑表现等领域的创作者而言，Arnold for Cinema 4D 4.9.3 不仅延续了 Arnold 一贯的高质量光线追踪渲染品质，还通过大量底层优化让交互式渲染和最终输出变得更加高效流畅。该插件兼容 Cinema 4D 2024.4.0 及以上版本、2025.0.0 及以上版本以及 2026.0.0 及以上版本，用户可以直接从 Autodesk Account 下载安装，并按照官方安装说明完成部署。在核心增强方面，Arnold 7.5.3.0 带来了更快的 GPU 像素渲染效率，根据场景复杂度的不同，性能提升幅度在百分之一到百分之二十之间；GPU 首次像素时间也得到大幅缩短，场景更新速度相比 Arnold 7.5.2 通常快一到四倍，例如 Beeple 场景的 GPU 场景更新从 3081 毫秒降至 790 毫秒，Walrus 场景从 107 毫秒降至 47 毫秒，ALab 场景从 1910 毫秒降至 850 毫秒，这些改进意味着艺术家在调整材质、灯光和摄像机时能够获得更即时的视觉反馈。在 CPU 和 GPU 上进行交互式多边形网格编辑时，Arnold 现在采用增量更新机制，不再完全重建网格，因此在密集网格上进行顶点和形变编辑通常快约两到二点五倍，例如在二十万面的 Catmull-Clark 网格上切换平滑选项，每次更新的耗时从约六点五毫秒降至约一点四毫秒。此外，Arnold 引入了基于 instancer 节点的轻量级实例化系统，任何使用 Arnold instancer 节点的插件都能受益，实例化场景在内存占用和首次像素时间方面均得到优化，对于植被散布、人群和粒子复制等密集实例化场景，渲染速度更快且内存消耗更低。对于风格化渲染需求，新版本增加了漫射、绒毛和镜面 BSDF 节点，这些节点可以独立评估各自的光照响应，并通过 shader_to_rgba 节点连接，从而更轻松地构建非真实感渲染效果。直接输出渲染模式是另一个重要更新，它允许用户跳过常规的基于 CPU 的图像器和驱动器基础设施，直接获取 AOV，从而在导航和编辑时获得更快的反馈，该模式目前仅支持 GPU，并可通过 options.direct_outputs 布尔参数启用。Cryptomatte 清单也得到精简，不再包含遮罩保持对象和摄像机不可见对象的条目，从而显著减小 EXR 文件中嵌入的清单元数据体积，避免下游工具如 Nuke 因数兆字节的无用数据而变慢。定向曲线模式现已支持渲染 Spline 对象，曲线可以在每个点朝向指定方向，包括法线方向、摄像机方向或用户指定的目标对象。OptiX 降噪器和 Noice 降噪器均获得质量提升，Noice 在处理透过玻璃等透明表面看到的物体以及镜面反射表面中的物体时效果更好，但需要 denoise_albedo_noisy 及其方差 AOV 作为输入。kick 命令行工具现在支持通过分号分隔的帧列表和范围来渲染多个帧，例如 -frame 1;3;10-22 或 -frame 1-100,2。options 节点新增了 UI 分组元数据，使 kick -info options 能够按 Sampling、System、Diagnostics 等标题分组显示参数。matrix_interpolate 节点增加了 motion_start 和 motion_end 参数。Arnold 还更新了 Autodesk Desktop Licensing 至 v16.3.1.15415，并将 Intel Open Image Denoise 更新至 2.5.0。Flow Render 技术预览版作为 Arnold 云渲染解决方案，为每位用户每月提供 2400 分钟的渲染时间用于测试和评估，该版本新增了转台渲染功能，无需在 DCC 中手动设置摄像机和灯光即可生成模型的 360 度视图，同时支持纹理烘焙，可将光照和着色细节永久捕获到图像文件中，提升实时或下游渲染性能。多帧渲染设置允许将多个帧分组为单个任务提交，减少云工作器启动和关闭的开销。资产密集型场景的作业提交性能大幅提升，验证数千个资产的上传状态从数分钟缩短至数秒。云渲染作业现在可以运行长达 24 小时。USD 方面也有多项增强，包括编写 upAxis 和 meterUnit 元数据、添加转台命令行工具、支持 UV RenderVars、支持双精度 primvars 以及交互式更新网格法线。API 方面，直接输出 API 允许 DCC 插件在新直接输出 GPU 渲染模式上构建快速交互式视口，通过 AiGetRenderOutput() 函数将 AOV 复制到调用者提供的目标中，目标类型由 AtGetRenderOutputHandleType 选择，支持 OpenGL 纹理和 CPU 主机缓冲区。节点版本化 API 提供了注册和解析版本化节点条目的能力，支持 C 和 Python，并暴露了多个查询函数。该版本还修复了大量缺陷，涉及多边形网格重新初始化崩溃、GPU 纹理 mipmap 分辨率、插件加载错误报告、实例化网格细分设置覆盖崩溃、功能覆盖交互无效、嵌套实例化器竞态条件崩溃以及多个 USD 相关问题。系统要求方面，Windows 需要 Windows 10 或更高版本并安装 Visual Studio 2019 可再发行组件，Linux 需要 glibc 2.28 或更高版本，macOS 需要 macOS 12 或更高版本，x86-64 CPU 需支持 SSE4.1 指令集，Apple M 系列芯片原生支持，GPU 渲染和 OptiX 降噪仅支持 Windows 和 Linux，并需要 Maxwell 架构或更新的 NVIDIA GPU，Linux 推荐 590.48 或更高驱动，Windows 推荐 591.28 或更高驱动，Intel OIDN 可在所有 CPU 上运行，GPU 支持则因平台而异。总体而言，Arnold for Cinema 4D 4.9.3 是一次兼顾性能、功能与工作流效率的全面升级，适合追求高质量渲染与快速迭代的 Cinema 4D 用户。4.9.3 - Arnold for Cinema 4D
22 July 2026
Arnold for Cinema 4D 4.9.3 uses Arnold 7.5.3.0 and is a minor feature release bringing support for oriented curves, and turntable and texture baking in Flow Render.
Arnold 7.5.3.0 is a feature release that includes new BSDF shader nodes for stylized rendering, faster IPR, improved GPU rendering performance, a new API for fast viewport rendering, and more.
Flow Render Tech Preview
C4DtoA includes a Tech Preview of Flow Render, an Arnold cloud-rendering solution. We are providing 2400 minutes (per user, per month) of rendering time to Arnold users for testing and evaluating the service. Please report any feedback or issues in the Arnold feedback forums.
See the Flow Render Tech Preview documentation for more information.
Installation
Download Arnold for Cinema 4D from your Autodesk Account. See Download Arnold for more information about downloading C4DtoA from your Autodesk Account.
Follow these installation instructions.
Cinema 4D Compatibility
2024.4.0 and above
2025.0.0 and above
2026.0.0 and above
Enhancements
Faster GPU pixel rendering: GPU rendering is now more efficient, with improvements ranging between 1–20% depending on the scene. (ARNOLD-17861, ARNOLD-17866, ARNOLD-17903, ARNOLD-17943)
GPU performance improvement graphs showing 1–20% gains across scenes
Faster time to first pixel on GPU: Building on the improvements in the previous Arnold release, GPU scene update is now much faster, typically 1–4x faster than in Arnold 7.5.2. (ARNOLD-17907, ARNOLD-17966)
Scene 7.5.2 GPU scene update 7.5.3 GPU scene update Speedup
Beeple 3081 ms 790 ms 3.90x
Walrus 107 ms 47 ms 2.27x
ALab 1910 ms 850 ms 2.25x
Sophie 2608 ms 2601 ms 1.00x
Faster interactive polygon mesh editing on CPU and GPU: Modifying a polymesh during IPR now updates incrementally instead of fully rebuilding the mesh. Typical vertex and deformation edits on dense meshes update ~2–2.5x faster. For example, toggling smoothing on a 200k-face Catmull-Clark mesh drops from ~6.5 ms to ~1.4 ms per update. (ARNOLD-17628)
Lightweight instancing with the instancer node: Arnold now renders instances through a lightweight instancing system for any plugin that uses an Arnold instancer node, extending the benefits previously available only through USD. Instancing is more memory efficient and time to first pixel is faster, because the scene is quicker to initialize. Dense instanced scenes, such as scattered vegetation, crowds, and particle duplicates, now render faster and use less memory across all plugins. (ARNOLD-17947)
BSDF nodes for stylized rendering: The new diffuse, fuzz, and specular BSDF nodes evaluate individual lighting responses independently. Connect them to a shader_to_rgba node to more easily build non-photorealistic (NPR) looks. (ARNOLD-17782)
Direct outputs rendering: A new direct outputs mode lets you obtain AOVs directly, skipping the regular CPU-based imagers and drivers infrastructure, for much faster feedback while navigating and editing.
Direct outputs rendering mode also has some IPR optimizations not yet exposed in regular Arnold IPR and is currently available on GPU only.
You can enable this mode with the options.direct_outputs boolean parameter. The new mode doesn't support regular drivers and outputs must be obtained through AiGetRenderOutput() calls (see API section below). (ARNOLD-17608)
Smaller, more efficient Cryptomatte manifests: Cryptomatte manifests no longer include entries for matte holdout objects and objects that are invisible to the camera. This can significantly reduce the size of the manifest metadata embedded in EXR files, or saved in the sidecar manifests. In production scenes, it was possible to accumulate several megabytes of unusable manifest data, which slowed down downstream tools such as Nuke. (ARNOLD-17983)
Oriented curves: Oriented curve mode is now supported when rendering Spline objects. This mode allows the curve to face in a given direction at each point, that can be the normal direction, camera or a user specified target object. (C4DTOA-3517)
OptiX denoiser: The OptiX denoiser now produces higher-quality denoising results. (ARNOLD-12188)
Optix Denoiser 7.5.2 Optix Denoiser 7.5.3
7.5.2 7.5.3
Higher-quality denoising with noice: The Noice denoiser now gives better results when denoising objects seen through transparent surfaces like glass and in reflective surfaces such as mirrors. To take advantage of this change, Noice requires denoise_albedo_noisy and its variance AOV as inputs. This is the same Albedo AOV used by the OIDN and OptiX denoisers. (ARNOLD-10252)
noice 7.5.2 7.5.3
7.5.2 7.5.3
Render multiple frames with kick: The -frame argument now supports a semicolon-separated list of frames and ranges when you kick a USD file. A range is written start-end and may take an optional step after a comma (start-end,step). For example, -frame 1;3;10-22 renders frames 1, 3, and 10 through 22, while -frame 1-100,2 renders every second frame from 1 to 100. The two can be combined: -frame 1-10,2;15. (ARNOLD-9867)
UI grouping metadata added to the options node: Tools like kick can now group related parameters for improved help. For example, kick -info options now lists the options node parameters under headings such as Sampling, System, and Diagnostics. (ARNOLD-15626)
Motion range on matrix_interpolate: The matrix_interpolate node now supports motion_start and motion_end parameters. (ARNOLD-17964)
Update Autodesk Desktop Licensing: Arnold now includes Autodesk Desktop Licensing v16.3.1.15415. See the release notes for more information on this release. (ARNOLD-17435)
Update Intel Open Image Denoise (OIDN) to version 2.5.0: The Intel Open Image Denoise (OIDN) was updated from 2.4.1 to 2.5.0. For the list of changes, see the OIDN release notes. (ARNOLD-17917)
Flow Render Enhancements
Turntable render: You can now render turntable animations on the Flow Render cloud service, providing a 360-degree view of your model, without needing to manually set up cameras or lighting in your DCC. (ARNOLD-17894)
Thanks to Alex Mateo for the use of his Gabi scene.
Texture baking: Flow Render now supports texture baking, which lets you permanently capture lighting and shading detail into an image file, improving performance in real-time or downstream rendering. (ARNOLD-17763)
Flow Render Texture Baking
Multi-frame rendering: The new Frames Per Task setting lets you group multiple frames into a single task when submitting a render job. This reduces the overhead of cloud worker startup and shutdown time, especially useful for long sequences or fast-rendering scenes. (ARNOLD-17676)
Improved job submission performance: Job submission of asset-heavy scenes is now much faster. Verifying the upload status of thousands of assets is now reduced from minutes to seconds. (ARNOLD-17637)
Increased worker timeout: Cloud rendering jobs can now run for up to 24 hours, supporting longer and more complex renders. (ARNOLD-17948)
USD Enhancements
Author upAxis and meterUnit metadata in the writer (usd#2698)
Add turntable command-line tool that generates turntable scenes from a USD asset (usd#2625)
Support UV RenderVars (usd#1286)
Support double-precision primvars (usd#2687)
Support mesh normals updates interactively (usd#2691)
API Changes
Direct outputs API: DCC plugins can now build a fast interactive viewport on top of the new direct outputs GPU rendering mode. Set the direct_outputs option on the options node to render at a reduced internal resolution and upscale to the final resolution for faster feedback. During the viewport render loop the render update callback is now invoked with the new AI_RENDER_UPDATE_VIEWPORT update type on each viewport update. This signals that fresh output is ready to display. Each AOV lives on the GPU. Use the new AiGetRenderOutput() function to copy an AOV into a caller-provided destination. The destination type is selected by AtGetRenderOutputHandleType: OPENGL copies directly into a GL texture via CUDA-GL interop, and CPU copies into a host buffer. See ai_render.h for the interface. The feature is currently available for GPU rendering only. (ARNOLD-17608)
Node versioning API: Arnold now provides an API for registering and resolving versioned node entries, letting plugins share a logical node_family across multiple node_version variants and look them up without hardcoding raw node names. The API is available in both C and Python, and exposes AiNodeEntryGetVersion(), AiNodeEntryLookUpVersion(), AiNodeEntryLookUpLatestVersion(), AiNodeEntryGetFamilyVersions(), and AiNodeEntryGetVersionFamilyIterator(). (ARNOLD-8640, ARNOLD-17959)
Bug Fixes
ARNOLD-10448 - Crash when reinitializing a polymesh with instances
ARNOLD-15427 - [GPU] Texture mipmap level was occasionally too low resolution
ARNOLD-17185 - No error reported when loading plugins
ARNOLD-17412 - Crash when instances of a mesh have overridden subdiv settings
ARNOLD-17738 - Interactively changing the feature overrides (the ignore parameters) has no effect
ARNOLD-17960 - Race condition with nested instancers leading to crashes
usd#255 - Do not reset lights during IPR iterations
usd#2621 - Fix invalid null shader being authored to USD from Maya
usd#2628 - Fix crash happening after changing the purpose in hydra
usd#2641 - Animate instanced lights driven by an animated Point Instancer in Hydra
usd#2673 - Remove spurious warnings "Arnold attribute not recognized"
usd#2677 - Fix crash reading RenderSettings with empty arnold:filter on a RenderVar
usd#2685 - Fix warnings about empty node names with nested instancers
usd#2686 - Prevent subdivisionScheme from being written as timeSamples in USD export
usd#2695 - Fix MaterialX boolean shaders through USD
usd#2706 - Fix overscan 1-pixel offset with certain resolutions
System Requirements
Windows 10 or later, with the Visual Studio 2019 redistributable.
Linux with at least glibc 2.28. This is equivalent to RHEL/Rocky 8.
macOS 12 or later.
x86-64 CPUs need to support the SSE4.1 instruction set. Apple Mac models with M series chips are natively supported.
GPU rendering and OptiX denoising work on Windows and Linux only, and require an NVIDIA GPU with the Maxwell architecture or later.
On Linux, we recommend 590.48 or higher drivers.
On Windows, we recommend 591.28 or higher drivers.
Intel OIDN runs on all CPUs. GPU support is limited to:
macOS
Apple silicon GPUs (M1 and newer)
Linux
NVIDIA GPUs with Turing, Ampere, Ada Lovelace, Hopper, and Blackwell architectures
Windows
Intel Xe and Intel Arc dedicated and integrated GPUs
NVIDIA GPUs with Turing, Ampere, Ada Lovelace, Hopper, and Blackwell architectures
AMD GPUs with RDNA 2, RDNA 3, RDNA 3.5, and RDNA 4 architectures
支持的软件版本：
2024.0.0或者更高版本
2025.0.0或者更高版本
2026.0.0或者更高版本
Win版本：
安装对应的版本
打开替换文件夹，拷贝ai.dll到安装目录中CINEMA 4D 2024\plugins\C4DtoA\arnold\bin
如果安装后C4D 打不开，请先卸载插件(到plugins里面删除c4dtoa文件夹)，然后把C4D更新到最新版本，最后重新安装插件即可
版本说明：
因为随着插件版本更新，老版本C4D的插件官方将不在提供，只保留老版本软件对应的最新插件
R22版本只保留4.0.0.1版本，没有高版本
R21/R23版本只保留4.4.0版本，没有高版本
R24版本只保留4.6.6版本，没有高版本
R25/R26版本只保留4.7.6版本，没有高版本
|
|
9集c4d arnold 阿诺德渲染器中文渲染教程
