--- title: "V-Ray Next, Update 2" canonical: "https://documentation.chaos.com/space/VRAYHOUDINI/113284004/V-Ray%20Next%2C%20Update%202" format: markdown --- ***Official Release*** **Date **– 15 October, 2020 **Download **– Build 4.30.03   > Macro (ui-button)     ## **New features** --- **VRScene** - Enabled VRScene export from Houdini Indie - Added support for unpacking the VRScene into live polygon geometry under the "Import" tab of the VRScene SOP **VRProxy** - Added support for render-time baking of subdivision and displacement into a VRMesh from the V-Ray Object Properties "Bake Geometry" tab **Hair** - Added "ACEScg" color space support for the Hair material **UI** - Аdded a "Reset VFB Position" button under the Images tab of the Renderer ROP - Updated the File Browser type for image paths **Houdini** - Changed the Console / Log window behavior - the V-Ray Log window is now always used instead of the native Houdini console - Added support for Houdini 18.0.499 - Added a Pack Scene option under the V-Ray Main menu - Added a V-Ray Renderer TOP node - Added support for the "Representative Node" option on HDAs - Added an "About" button to the V-Ray menu that shows detailed V-Ray for Houdini and V-Ray Core information - Added support for Houdini 18.0.566 - Added initial support for Houdini 18.5 - Added support for textures embedded in HDAs (currently limited to PNG image file format) - Updated the V-Ray main menu with buttons linking to the documentation, forum and tutorials section - Added support for HDA embedded textures in JPG, PNG and TGA format **Textures** - Added a Random texture that accepts either a float or vector value as a seed to generate either a random float or a random vector value - Added the Volume Grid Texture used for sampling voxel values from a volume - Added a custom Pattern ID texture that can be used with the Multi ID Material/Texture for assignments based on string attributes placed over packed primitives or packed alembic primitives (Note: this will not work with string attributes placed on the individual faces of polygon mesh) - Added the GLSL Texture VOP **Texture Baking** - Added Post-Translate Scripts support to the V-Ray Baker Tool - Added the Denoiser render element to the V-Ray Baker Tool **Deadline ROP** - Added custom Environment Variables export parameter to the Deadline ROP **Rendering** - Added an initial integration of the Volume Grid Texture for sampling voxel data **Lights** - Added light linking support for the Volume Scatter material **Materials** - Added the GLSL Material VOP **Export** - Added support for multiple Post-Translate scripts - Added support for the Transform VOP **Hydra/Solaris** - Added initial Solaris support accessible through the "V-Ray (Alpha)" option in /stage ## **Modified features** --- **Alembic** - Added support for displacement over an Alembic file with a baked "shop_materialpath" attribute - Added support for the "alembicfullvisiblity" intrinsic attribute - Added support for the Hair Properties' "Tessellation Multiplier" and "Geom Splines" options for hairs contained in a Delayed-Load alembic **Rendering** - Material assignments are lost for instances using @instance or @instancepath when Rayserver Instancer is enabled - Sped up Rayserver Instancer when rendering single-level hierarchies of instances - Added “Estimated Time Remaining” support for the V-Ray Frame Buffer - Added a "Save Deep Data to Separate Files" toggle under the Images -> Advanced tab of the Renderer ROP - Added a "Save Color Corrections to Raw Files" toggle under the Images -> Advanced tab of the Renderer ROP **Installer** - Updated the json environment setup due to a QT libraries conflict causing the Houdini Help Browser to stop working - V-Ray for Houdini builds are now always installed in the default HFS path for the selected V-Ray version **Textures** - Added a Color parameter to the OCIO Texture - Added "Horizontal Rotation" and "Vertical Rotation" parameters to the UV Environment VOP - Added missing "Extrapolate Type" parameter to the Bezier Curve texture - Exposed the "Cache Size" option under the Renderer->Options->Textures tab used for limiting the amount of RAM consumed by textures - Added a "Clamp" option to the Bezier Curve texture - The Volume Grid texture now expects a disk file path instead of a node path - Added support for the $F tag in the texture path for lights **VRScans** - Removed the Color Space parameter from the VRScans material - this is automatically handled by the Color Space parameter on the Renderer - Sped up the preview when loading VRScenes containing V-Ray Proxies - Updated preview for meshes with a large numbers of faces **AOVs** - Restored the "Zero Infinity Depth" toggle to force a black background color for the Z-Depth element - Added support for the Cryptomatte "User Attribute" mode when rendering with the GPU **Volume Grid** - Removed the "*.vdb" file extension filter from the Volume Grid Cache SOP's File Browser dialog **Texture Baking** - Added the option to explicitly specify the UDIMs to bake in the V-Ray Baker Tool SOP - Disabled the export of splines and particles when baking textures with the V-Ray Baker Tool SOP - Automatically recalculate invalid normals on Mesh export to resolve empty AOV output for geometry with (0, 0, 0) normals - The "Consider for AA" toggle for render elements is now exposed on the V-Ray Baker Tool **UI** - Removed the "Use Particle Color" parameter on BSDF Point Particle material because it's redundant with the User Color VOP available - Restored UI visibility of the “Translate” parameter on the Dome Light due to a forum request **Deadline ROP** - Added support for per-frame VRScene export and Deadline Task per VRScene submission **Export** - The OpenSubdiv toggle on the V-Ray Object Properties will now work for Alembic Delayed Load primitives - Added support for float attributes on vertices - Added support for the V-Ray Sampler RenderID parameter for render-time randomization of VRScenes - Added support for instanced lights with animated visibility - Added support for the V-Ray Hair Properties when rendering Alembic files containing hair primitives **Volume** - int 'vray_objectID' point attribute can now be added to packed volumes for use with the ObjectID or Multimatte render elements **Lights** - Added support for automatic generation of multiple mesh lights from packed geometry coming through a single Geo node **Materials** - Added the Anisotropy UVWGen input to the V-Ray Material - Updated the V-Ray Toon material to the latest version available in V-Ray Core **GPU** - Added support for more than 10 materials in MtlMulti when rendering with V-Ray GPU **VFB** - Added a "Remaining Time" progress bar to the V-Ray Frame Buffer **Hython** - Added a wrapper for the ropNode.render() method to resolve syncing issues when rendering in a loop through hython **Houdini** - Creating a V-Ray Renderer will now always create a V-Ray IPR ROP as well   ## **Bug fixes** ---   **Alembic** - Empty render when the Geometry node holding the Alembic file is inside a Forced Matte Subnet node - Fixed a hang on render start with particular Alembic file and Displacement enabled - Crash when rendering a particular Alembic file containing degenerate faces - Baked s@shop_materialpath assignments are lost when enabling Displacement from the Object Properties of the parent node **AOVs** - Forced material assignments from an Alembic baked shop_materialpath would not be registered for Cryptomatte in "Material Name" mode - BRDFs hooked up to a Blend material had wrong output for the Material Select element - Updated Cryptomatte VOP UI - Fixed a crash when selecting a Bump BRDF VOP into the Material Select Render Element - Fixed a bug with the Object Select AOV causing the Physical Camera's "Exposure" parameter to be ignored for the AOV output - The "Don't Save RGB Channel" toggle did not work as expected - Crash when selecting Bump VOP into Material Select render element **GPU** - Fixed a crash when opening a new scene after rendering with GPU - Hang after rendering a volumetric on the GPU and trying to close Houdini or open new file - Fixed a crash with a specific scene when rendering on the GPU **Deadline ROP** - Export a single Houdini job with sub-tasks when the Mode is set to "Render Job" - Fixed a bug causing "Director" to be used in place of the ROP node name when "${OS}" is part of the export path - Selecting slaves for the Machine List adds a "Qt: Untested Windows version 10.0 detected!" message to the list - Default Deadline ROP Frame Range for "Frames per Job" export was one frame shorter than the entire timeline range - Added support for UNC paths - Fixed a bug causing wrong evaluation of the "${OS}" variable for the Image and VRScene output paths - Environment texture parameters are not exported when no input node is provided to the slot causing V-Ray to use the "background" texture - Fixed a bug causing wrong output on the farm when Deep Output is enabled on the Renderer ROP **IPR** - IPR is not updated for volumes when the Renderer's Sampler type is set to "Bucket" - Hooking/unhooking nodes under a File SOP used to load VDBs (e.g. Transform SOP) did not update IPR - Changing the visibility flag on a piece of geometry would occasionally cause the entire geometry to disappear - Creating a node inside a V-Ray Material Builder VOP used to restart the IPR even if that node is not a part of the shading network attached to the rendered geometry - Adding or removing an input connection to a VOP node would occasionally fail to update IPR - Pressing the "X" button on the VFB to close the window would not stop the IPR - When Motion Blur is enabled, objects with velocity blur used to have wrong motion blur after changing the Timeline frame - V-Ray Clipper was not updated in IPR - In some cases instanced geometry would not update in IPR - Adding or removing an input connect to a VOP node does not update IPR - Fixed multiple issues with IPR inside the Houdini Render View window - Distance texture was not rendered in IPR - Moving the camera during IPR causes "Camera Motion Blur" to disappear - The position of an animated camera was not updated when changing the timeline frame during an IPR session - Starting IPR with no Camera present in the scene does not bring up the VFB to the foreground - When IPR is started in the VFB without a camera, the VFB window would disappear - Volume Grid Shader ramps are not updated in IPR **Export** - Geometry with no animation keyframes disappears when using Rayserver Instancer with Motion Blur enabled - Added required metadata for Material Select element to support sub-BRDFs selection when e.g. Blend material is assigned - Wrong animation frame keys exported when using Time Shift to lock the time for an Alembic file containing multiple samples to the current frame - The "Find Sun Automatically" toggle on the V-Ray Sky texture was not working - Fixed a crash caused by forced Vertex attribute export - Forced subnet with forced children produces multiple visible nodes - Fixed wrong objectID parameter export for volumes causing wrong ObjectID and MultiMatte render elements output - When Motion Blur is disabled and Duration is set to 0, the geometry disappears - Alembic paths were not exported correctly for alembic files containing 2 frame samples in a single frame abc file - Some V-Ray Frame Buffer settings were not stored in the scene or went missing when opening it in non-GUI mode - Fixed wrong "Display" parameter evaluation when the parameter is animated - Updated Wrapper material, Object Properties and Volume Grid Shader parameters to fix a wrong export issue with the Volume GI properties - In some cases duplicate geometry was exported to the VRScene for every packed primitive - Locked the "Min. Geometry Samples" option for Motion Blur to 2 - Object with animated "Renderable" parameter in the V-Ray Object Properties is not rendered - In some cases the live geometry instancing will fail producing large VRScene files - Objects with animated visibility are always visible - Wrong evaluation for "${F}" when used in an expression for the "Environment" parameter on the V-Ray Renderer ROP - Fixed a problem in a specific scene where the animated mesh vertices would not be exported - Displacement through material is not exported when some of the faces have a shader with no displacement assigned to them - Added support for a default material and default texture export under the Options tab of the V-Ray Renderer ROP - Fixed an assignment mis-match when using shop_materialpath on packed primitives in a specific scene **Volume Grid** - Phoenix FD ".aur" cache files produced wrong emission results - Preserve environment variables functionality on the ROP was working incorrectly for volumes **V-Ray** - Fixed a difference in Motion Blur when using the "v" attribute if Rayserver Instancer is enabled - Crash when the Chaos License Server is not installed and trying to select GPU Devices **Aerial Perspective** - The V-Ray Sun was missing **Textures** - Object level transformations were not considered by the V-Ray Distance Texture for geometry in the "Objects" list - Fixed a bug preventing the re-loading of an OSL file in the OSL texture - Added some missing UV Bercon parameters - UVWGenEnvironment has horizontal and vertical rotations swapped - OSL string widgets do not generate a drop-down menu for TexOSL - The Distance Texture was not picking up instanced objects in IPR - Fixed a displacement texture export issue when no file path is provided - Make Transform VOP data was not exported to the VRScene - Wrong UVs export when displacement is enabled - Removed the "Filtering Strength" parameter from the UV Bercon VOP - Changed the Reference Shader VOP's Node parameter to 'oppath' instead of 'oplist' - Added a name parameter for each layer of the Layered texture - Fixed a bug causing UV stretching when using OpenSubdiv - Added support for all common Image File VOP output sockets when OCIO is enabled - Texture in a V-Ray Image node connected to the Displacement VOP doesn't override the texture in the displacement node - Fixed a crash when the Volume Grid texture's Path parameter is empty or incorrect - Fixed an issue with the Image File VOP causing OCIO texture colorspace parameter menus to not be populated automatically - The OCIO configuration used to be parsed per-texture instead of globally which produced noticeable slowdowns when opening a scene that contains a large number of V-Ray OCIO VOPs - Crash when no UV Mapping VOP is connected to the V-Ray Bercon Noise VOP **Displacement** - File sequence textures with an e.g. token in the file path would not be loaded when specified directly under the Displacement VOP's Texture parameter **VRProxy** - Proxy created from Packed Geometry has wrong Viewport preview when imported back into the scene **UI** - The Physical Camera "Rolling Shutter" parameter had an unreasonable default value - The V-Ray Bump material is present twice in the VOP menu with the copy causing a UI error - 2D displacement settings stay hidden when displacement type is set to 2D - Updated the GPU Device Select window borders - Removed "Work in Progress" UI prefixes for new features - Added missing "End Tangents" toggle to the Bercon textures - The Physical Camera "ISO" parameter should not be disabled for CUDA/RTX render modes **Chaos Cloud** - Fixed a crash when submitting to the Chaos Cloud without a camera in the scene **Rendering** - Fixed a crash with particles and Rayserver Instancer when Motion Blur is enabled, velocity is used and Sampler Max Subdivs is greater than 11 - Fixed a bug causing wrong EXR Metadata export due to ticks (`) in the string field - Fixed a bug causing no motion blur with non-default Motion Blur settings on CentOS 7 with Houdini 17.5 - Car Paint material was missing a "flake_uvwgen" input - Environment texture parameters were not exported when no input node is provided to the input slot causing V-Ray to use the "background" texture - Added a "Save Deep Data to Separate Files" toggle on the V-Ray Renderer ROP's Images -> Advanced tab - Rendering splines with V-Ray GPU would produce dark artifacts on the hairs in some scenes that contain a V-Ray Rect or Sphere light - Crash on render start under Mac OSX **Volume** - Fixed a bug causing wrong VRScene export for volume sequences loaded as Packed Disk Primitive types - Fixed wrong objectID parameter export for volumes causing wrong ObjectID and MultiMatte elements output - Duplicate "Disabling Light Cache for ..." message printed for volumes even when Volume Light Cache is disabled when rendering in IPR **Volumes** - Fixed a crash when rendering volumes instanced over points with a @pscale of 0 **Houdini** - Fixed a bug causing the Houdini “hou” python module to fail loading when starting Houdini in batch - Fixed an issue with the V-Ray TOP node caused by using a relative, rather than absolute path in the VRayTOP HDA - Referenced parameters are sometimes not evaluated for the V-Ray Renderer ROP when placed inside a locked HDA - Referenced python expressions would sometimes not be evaluated correctly for the V-Ray Renderer ROP - The "Pack Scene" option from the V-Ray menu used to crash Houdini when used on an empty scene with no V-Ray Renderer ROP present **Lights** - Lights instanced over template points do not disappear if the template point is removed during animation - Fixed a crash on render end with instanced Mesh lights - Fixed HDA errors thrown by Mesh light when attempting to create a digital asset - Sphere and IES lights were not exported to the VRScene - Fixed a bug causing instanced lights to emit no light in the scene **Materials** - Light links are not considered by the Volume Scatter material - Fixed an issue with Dispersion when using the acesCG color space - Fixed a bug causing scrambled material assignments when assigning a Multi ID Material to a mesh with OpenSubdiv enabled from the Object Properties **VRScene** - Materials are not re-built correctly when importing them from a VRScene that uses the parameter::socket notation - Crash when importing material from VRScene generated in Houdini using the "Plugin Name" option - Empty material import with VRScenes generated from Houdini when using the "Scene Name" option