Hotfix 2 maintains and secures the core structural enhancements introduced in the main Chaos Corona 11 rollout:

The updated Physical Material now supports (for frosted glass and realistic leaves) and Sheen (for fabrics like velvet).

| 3DS MAX Version | Compatibility Status | Notes | |----------------|----------------------|-------| | 2016 | Fully supported in HF2 | Requires SP3 + Update 12. Interactive rendering works. | | 2017 | Fully supported | All features tested. | | 2018 | Fully supported | Corona Pattern & Scatter fully functional. | | 2019 | Fully supported | Fixed DR issues from Corona 11.0. | | 2020 | Fully supported | VFB Histories stabilize. | | 2021 | Fully supported | OptiX denoising fixed. | | 2022 | Fully supported | IR + Slate material corrected. | | 2023 | Fully supported | Native. | | 2024 | Fully supported | Some users reported material lag in 11.0 – resolved in HF2. | | 2025 | Fully supported | Full SDK compliance. |

Do not install this version expecting to open scenes in Corona 12 later. Scenes saved with Corona 11 Hotfix 2 are forward-compatible but not backward-compatible with Corona 10.

Corona Renderer 11 Hotfix 2 for 3ds Max (released April 15, 2024) primarily focuses on adding compatibility for Autodesk 3ds Max 2025 Corona Forum

Corona Renderer 11 Hotfix 2 is a maintenance update aimed at stabilizing and polishing the major feature set introduced in Corona 11, while ensuring compatibility and reliable performance across older 3ds Max releases (2016–2020). This essay summarizes the hotfix’s purpose, key fixes and improvements, practical impact for artists and studios, compatibility considerations, and recommended best practices when applying it.

Chaos Scatter是Corona生态中用于高效散布植物、车辆、人群等的核心工具。在此版本中，修复了若干可能导致场景无法完全加载的问题，同时解决了“Isolate Selection”（隔离选择）视图下Scatter会不必要地重新计算，从而降低视口交互响应速度的问题。更新后，散布密集的大型场景在建模与交互阶段会更加顺畅。

Users of Corona 11 for 3ds Max can download the installer directly from the Chaos Corona download page Further Exploration Read the full official release notes

Key fixes and improvements While hotfixes typically avoid introducing large new features, Hotfix 2 focuses on several important areas:

: Improved Intel Denoiser that can utilize either the CPU or GPU. 4. Implementation Recommendations

Corrected "edge trimming" tooltips and hierarchical model instance behavior. Workflow Adjustments

Fixed performance lag in the viewport when using the "Isolate" tool with Scatter.