Lightweight import option for CATIA V6

You can now enable the Lightweight importer for 3DXML/CATIA V6 in the Import window and VRED Preferences to improve import performance on representative files.

Drag & drop Materials from one VRED instance to another

You can now copy materials from the Material Editor of one VRED instance to another.

After selecting the materials in the first VRED instance, hold Alt + LMB until the export label appears next to the cursor. Then drag the materials into the Material Editor of the second VRED instance and release them to import the materials.

Responsive Tabs

VRED supports extensive drag-and-drop workflows between editors. A common issue occurs when the target editor is docked in a tab group and not visible. We've improved this workflow: hover a dragged scene object over a tab to bring the corresponding editor to the front, similar to Windows File Explorer.

GPU-Raytracing: Shader Execution Reordering (SER)

VRED now supports Shader Execution Reordering (SER), which dynamically regroups divergent ray workloads at runtime. This improves GPU coherence and utilization in complex ray-traced scenes, speeds up progressive rendering convergence, and boosts performance in material-heavy scenes.

Scripting Updates

We've added new functions and classes for Variant Sets and Thin Film. MDL and MaterialX compilation types now support cutout transparency. Additionally, new Faceter options are available in vrdAtfSettings and vrdTessellationSettings.

For a complete list of what has been added or changed in the VRED Python API, see What's New in Python API V1 and V2.

GPU Ray Tracing Memory Requirements (Windows)

When using multiple GPUs for ray tracing, ensure that the Windows page file is configured with sufficient virtual memory. According to NVIDIA guidance, the page file must be large enough to accommodate the system's total memory capacity, including both system RAM and the combined memory of all installed GPUs.

For example, a workstation with:

• 128 GB of system RAM
• Four NVIDIA RTX 6000 Pro Blackwell GPUs (96 GB each)

has a total memory capacity of 512 GB (128 GB + 4 x 96 GB). In this configuration, the Windows page file should be set to at least 512 GB.

If the page file is too small, the system may experience out-of-memory crashes, even when sufficient physical RAM and GPU memory are available.

Updated Tutorial Videos

We've updated Getting Started tutorial videos for the following topics in the VRED help:

• Getting Started Tutorials Overview
• User Interface
• Data Preparation
• Materials and Environments

You can access the legacy tutorial videos from the VRED 2026 help.