Chaos V-Ray 7, Update 2 (7.20.00) for Autodesk 3ds Max

New features

V-Ray
- Night Sky
- Deferred loading of the VRayProxy viewport previews
- Distributed rendering 2
- Add external dispatcher settings to V-Ray DR2 dialog
- Gaussian Splats clipping
- Add a button for Gaussian Splats in the V-Ray toolbar
- Independent Horizontal/Vertical FOV for cylindrical point camera (Cylindrical w/ vertical FOV camera type)
- Multi-import from Chaos Cosmos
- Show highlight settings in V-Ray Render setup
- V-Ray two-sided texture
- Add Probability column to VRayMultiSubTex
- Add a mapping source slot for the VRayMultiSubTex
- Add VRayEnhancerData render element
- Support ACES based on OCIO 2.4
- Increase maximum count of light selects up to 256
- Update OpenEXR to v3.x
- Show animated texture in the viewport for V-Ray Plane light
- Add an OpenPBR shading mode in VRayMtl
- Support for 3ds Max OpenPBR material on export
V-Ray GPU
- Added VRayLuminaire support in V-Ray GPU
- Support of Gaussian splats on GPU
- Improved Caustics with Dispersion support on GPU
- Better memory usage and performance optimizations
- IPR options rollout in V-Ray GPU Render settings
VFB
- Ability to drag a mask from one layer to another one in VFB
- Add an environment variable to stop AI features (CHAOS_DISABLE_GEN_AI)
- Add Highlights, Whites, Shadows and Blacks to Exposure layer
- Duplicate layers in VFB by holding Alt and dragging
- Move Highlight Burn from Exposure layer to Filmic Tonemap - linear
Chaos Scatter
- Clusters in Chaos Scatter
Chaos Cosmos
- Support for AI Material Generation from Cosmos browser
Chaos Cloud/Collaboration
- AI Image Enhancer
- 3D Streaming on Cloud

Modified features

V-Ray
- Add a VRayGaussianSplats render element to hold the shading results from VRayGaussiansGeom, and support for z-depth
- Gaussian Splats viewport performance and preview improvements
- Improve V-Ray Viewport IPR updates for Gaussian splats
- Show the amount of primitives as Percentage in VRayGaussianGeom
- Add a warning message in the Render setup when the GUI license is missing
- Add layers select and object IDs to include/exclude of VRayLight
- Add plus/minus buttons to the include/exclude functionality for VRayLight
- Import lights from Cosmos as instances
- Group lights participating in a VRayLuminaire light source in a single light select render element when using light mix
- The VRayLuminaire color and temperature parameters should override the color of the original lights, rather than multiply them
- Use Embree for VRayLuminaire's internal convex hull intersections
- VRayLuminaire: reduce samplers' resolutions for high-resolution fields
- Improved V-Ray scene conversion of Corona Sun and Sky
- Scene Converter - improvement in conversion process
- VDenoise will now by default and implicitly save "lean" images i.e. discarding the denoiser extra data from the saved image
- Add an option to exclude denoiser extra data on saving raw files
- Change the Standard/Advanced button in V-Ray render settings panel with a switch button
- Change the UI for Material override in V-Ray render settings
- Support for USD 0.11.00
- Drop the old USD’s support: 0.7.0, 0.8.0, 0.9.0
- Implement export for VRaySphereFade environment effect along with the SphereFadeGizmo(s)
- Remove Resize Textures mode in V-Ray GPU UI
- The "Register Spawner as a Service" shortcut is not working with Windows 11 and V-Ray 7
- UI improvements in V-Ray and V-Ray GPU render setup
- Update V-Ray and V-Ray GPU to OCIO v2.4
- Subdivision and displacement optimizations
- Add an option to VRayBump2Normal to generate normal maps with flipped green component
- Make the "ignore invisible objects" VRayDirt option available when the renderer is V-Ray GPU
- Gray out the Height parameter of VRayIES shape override in mode rectangle
- Disable Bitmap preview in the viewport for V-Ray Plane light when wireframe mode is used
- Modify the VRayOCIO texture to allow baking of the current OCIO transformation to a .cube LUT file
V-Ray GPU
- Support for Area shadow of VRayShadow in Standard 3ds max lights (Spot, Directional)
- Support for Material Select render element
VFB
- Ability to save single or multiple history images to disk
- Access to render stats from the last render using MAXScript
- Add a clear button to the cryptomatte mask in VFB2
- Add Highlight burn in Exposure layer back for old scenes
- Reinitializing an already loaded but updated OCIO config via 3dsMax color management dialog or via maxscript does not reload it in the VFB
- Remove the "1" & "2" keyboard shortcuts from the context menu in VFB region rendering

Bug fixes

V-Ray
- Bad viewport preview of VRayBitmap with UV offset as Environment Background
- Chaos Scatter with disconnected line segments renders differently in V-Ray for 3dsMax and V-Ray Standalone
- Incorrect export of ChaosScatter with 2D scattering on a non-renderable shape/spline, which is set visible in viewport
- Crash in V-Ray Standalone, when rendering a specific ChaosScatter scene with distribute-on objects without channels
- Crash on 3ds max reset with running full screen V-Ray Viewport IPR with Gaussian Splats
- Crash on Cosmos variation selection, when mtl variations number is inconsistent for all geometry variations
- Crash on second DR render
- Crash when rendering scene with USD instances when the camera is below ground level
- Improper 2D scattering on spline embedded polygon in V-Ray Standalone and Chaos Cloud
- Incorrect file path displayed on the V-Ray mesh export overwrite confirmation dialog
- Incorrect normals for dynamic moving mesh geometry when rendering with motion blur enabled
- Misleading warning in V-Ray GPU IPR when caustics are enabled
- One-click submit (Chaos Cloud) cannot be started on Windows User names with non-latin characters
- Preview images of Cosmos assets appear cropped in the Cosmos Asset rollout for the Variants previews
- Spline shape is rendered wrong in V-Ray Standalone when Enable in Render is checked but Enable in viewport is not in the Spline settings
- The "Sun light" button to specify a specific VRaySun is missing in the VRaySky node in 3ds Max 2026
- The file output override window stays behind VFB
- V-Ray is not working in 3ds Max 2024/2025 when unsupported version of USD is installed
- V-Ray Light Meter crashes in 3ds Max 2026
- Viewport IPR randomly fails to start using max script then VFB IPR starts unexpectedly later
- VRayDirt renders differently in 3dsMax and V-Ray Standalone when object visibility is <= 0.000001
- VRayGaussianGeom's 'Point size' viewport representation resets on scene open
- VRayLightMix "To Scene" button doesn't work properly with VRayLuminaire lights
- VRayLuminaire: a block of black pixels artifact
- VRayLuminaire: convex hull luminaire caches produce slightly darker result compared to the old box caches
- VRayProxy override material can't be pasted/instanced in material editor in 3ds Max 2025/2026
- VRayUVWRandomizer with default settings (no randomization) causes changes in normal maps
- Wrong Gaussian Splat color space conversion
- Wrong results with Dispersion (Abbe Number) and Volumetric translucency
- VRayMultiSubTex doesn't allow maps to be drag and dropped onto other slots
- Crash in ipr with activating Bend direction map with normal map in it in VRayFur
- Caustics parameters in V-Ray properties are not respected in V-Ray GPU
- Native 3ds max MaterialX material is not rendered with V-Ray properly and it's not exported to vrscene when created in newer 3ds max versions (2024-2026)
- V-Ray scene converter should convert Coronabitmap to VRayHDRI nodes using sharp isotropic filtering
- File naming is not consistent using V-Ray Denoiser tool
- Wrong lights default multiplier on creation when the units are changed
- The effect of the Coat color should not depend on the energy preservation mode
- VRayMutliSubTex exports differently when using the "Random by Name" and "Random by Node Handle" modes
- PRG Clear Sky with altitude values from 0.01 to 0.25 is creating artifacts
- Clouds are not rendered when VRaySun is explicitly specified in VRaySky map
- Crash with VRayLightMix, xRef scene and Isolate Selected
- VRayFastSSS2 parameters are not updated in the UI when color mode is set to "Scatter coefficient + Fog color"
V-Ray GPU
- Black hole at Caustics focal point
- Crash when aborting light cache calculation with Caustics and overlapping lights
- CUDA 700 crash when using VRayDistanceTex with empty list / hidden objects
- Occasional crash when cancelling while building photons on GP
- The GPU Caustics's Max Photons value of 0 behaves differently than CPU
- VRayMultiSubTex multiplier is rendered wrong with CUDA/RTX in Standalone
- Wrong Caustics with physical 2-sided glass
VFB
- Discrepancy in separate channels output gamma between 3ds max and V-Ray Standalone output
- VFB warning box might go below other windows
- VFB Undo Stack gets flooded in various situations