© Taichi Kobayashi


Table of Contents

Official release

Date - Jan. 28, 2025

Build 7.00.10


Download V-Ray for Houdini


New features

V-Ray

  • Add support for Gaussian Splats.
  • Add initial implementation of the new V-Ray Volume Shader.
  • Add "Firefly Removal" option under the Sampler tab of the Render Settings.
  • Add support for Caustics when rendering with V-Ray GPU.
  • Updated the Intel Denoiser to version 2.3.0.

Solaris

  • Add V-Ray Hydra builds for Apple Silicon.
  • Add support for Cosmos assets.
  • Add Light Filter support for Emission Color parameter to allow texture projections from the light.
  • Add support for parameter tags.
  • Implement TexUserString node.
  • Add support for Yeti cache files.
  • Add Copernicus nodes support.

USD

  • Add 24.x support.

VFB

  • Add vignetting effect in the VFB.
  • Add Filters tab to the VFB.
  • Added support for custom render regions in the VFB.

MaterialX

  • Add support for Procedural textures.

Houdini

  • Add support for Houdini 20.5.278.
  • Add support for Houdini 20.5.332.
  • Add support for Houdini 20.5.370.
  • Add support for Houdini 20.5.410.
  • Add support for Houdini 20.5.445.
  • Add support for Houdini 20.5.487.
  • Add support for Houdini 20.0.724.
  • Add support for Houdini 19.5.773.
  • Add button for downloading missing Cosmos assets instead of doing it automatically.


Modified features

Solaris

  • Speed up Gaussian Splat LOP GUI when making parameter changes.
  • Update GUI for Toon Material and Toon Effect.
  • Gaussian Splat and V-Ray Proxy containers are of type "Scope" - transforms applied to that primitive are not inherited by the geometry below.
  • Option to apply VFB color corrections for Hydra output.
  • Add support for Hair Procedural Motion Blur.
  • Hide "scale" parameter from the GUI in favor of using the native transform tools fpr Gaussian Splats LOP.
  • Use native USD Camera parameters Shutter Open/Close for the V-Ray Physical Camera motion blur computation.
  • Improve FPS.
  • Use "displayColor" in addition to "Cd" for User Color VOP in shaders.
  • MaterialX: x-visualize not working.
  • Add support for Render Mask.
  • Use base material for polygons not covered by GeomSubsets.

MaterialX

  • Incorrect ND_heighttonormal implementation.
  • Incorrect ND_overlay implementation.
  • Support for value colorspace.
  • Add support for default_color, uadressmode and vadressmode of MtlX Image.
  • Use degrees instead of radians for the Place2D rotation values.
  • Add support for Pivot and Scale parameters for Place2D VOP.
  • Implement ND_colorcorrect and ND_randomcolor.
  • Support Blend value for materialX triplanar texture.

V-Ray

  • Builds are now placed under a /Chaos instead of a /ChaosGroup folder.
  • Significantly reduced V-Ray GPU Time to First Pixel and animation rendering times.
  • Up to 3x speed improvement for V-Ray GPU on OSX using Metal when utilizing Hybrid rendering.
  • Install V-Ray 7 for Houdini builds under "Chaos" instead of "Chaos Group" folder.
  • Enable "Use Light Transform" by default and hide it from the V-Ray Object Properties GUI.
  • Missing Color Space parameter for Gaussian Splats.
  • Set GUI defaults to be the same as the plugin parameter description defaults for Gaussian Splats.
  • Missing "Flip Axis" parameter in both Solaris and vanilla Houdini for Gaussian Splats.

Houdini

  • Missing "camera_visibility" atribute of volumeGrid(vdb) in exported VRscene.
  • Preserve scene_name of imported material through VRScene Import SOP.
  • Avoid unnecessary TexAColor plugins export for ramp attributes.
  • Add "Deep Output", "Color Mapping" and "Denoise" toggles for Light Mix AOV.
  • Hide "Use Displacement from Override Material" toggle when attribute pattern matching is selected.
  • Default to Oren-Nayar roughness model for the V-Ray Material.
  • Add support for instancing IES lights with per-point "intensity" from attribute.
  • Improve UV Projection GUI and Documentation.
  • Allow velocity nsamples from obj props.
  • Update Volume Shader UI for simpler Heat Haze control.


Bug fixes

Solaris

  • Crash in a particular scene setup.
  • Instances go missing randomly with specific scene.
  • Crash when enabling Toon under RenderGeometrySettings LOP if a Toon Effect is already applied at the material level.
  • Undo (Ctrl+Z) operation that creates a connection between nodes in the shading graph does not work.
  • Update rendering progress based on % progress instead of time intervals.
  • Different fov value for RenderView when render usd file with standalone compared to husk.
  • Several crashes with env toon effect.
  • Artifacts in viewport rendering when switching files without stopping renderer delegate.
  • Wrong fov with latest builds.
  • Wrong vertical offset with latest builds.
  • Topology is incorrect for certain frames of an animation.
  • MeshLight Decay parms are not exported.
  • Gaussian Splats "affect_matte_surfaces" and "rgb_color_space" parameters are not used/exported.
  • Crash when opening new scene after rendering scene with volume.
  • Crash to desktop with particular scene related to V-Ray Toon Effect.
  • Missing Render Var Sampler::uvCoord output for hair.
  • Viewport guides disappear behind rendered geometry when using V-Ray Hydra delegate.
  • Wrong triplanar mapping for instanced meshes.
  • Progressive Sampler "Noise Threshold" and "Max. Render Time" are ignored for production rendering with husk.
  • Render Settings UI Toon tab.
  • Default grey color is applied to all scene objects when using Bind VOP data in RenderVar.
  • Crash during IPR when changing the "Enable" flag for Mesh Light under the V-Ray tab of Render Geometry Settings LOP.
  • Instancing breaks subsets material assignment.
  • UV settings in "Mapping" tab of procedural textures are ignored.
  • Segmentation fault with particular scene.
  • Missing curve motion blur with using vray_displace_curves.
  • Crash when hiding sop node containing volumetrics.
  • Changing subdivision scheme during viewport IPR has no effect.
  • Primvars Strength Order Wrong on Instanceable Prims.
  • Changing Subdivision Scheme via Edit Properties node is causing a delay in rendering.
  • Instanced volumes test is failing since 18 april.
  • No IPR update when modifying primvars of instanceable primitives.
  • Toon AOV does not work due to missing "alias=154" export.
  • When Physical Camera as type Video is enabled, use Shutter Open and Shutter Close parameter values if Shutter Offset and Shutter Angle are not explicitly set.
  • Physical Camera parameters related to Motion Blur duration do not update viewport IPR.
  • Wrong motion blur evaluation for regular camera Shutter Open/Close.
  • Shader update may stuck in IPR.
  • Add support for Toon from RenderSettings and RenderGeomSettings nodes.
  • Crash with creaseweight when subdivision scheme manually set to catclark.
  • V-Ray: Exception in CORE: Internal error.
  • Physical Camera 'Bitmap Apperture' doesn't work.
  • Textures not loaded if attribute tags / $F4 are used in file name.
  • Relative asset paths are not resolved.
  • Segmentation fault on close after render with V-Ray.
  • Dome Light LOP Texture Color Tweaks "Saturation" parameter is translated to "hsv_saturation_offset" instead of "hsv_saturation_gain" parameter.
  • IPR update may use viewport geometry instead of render.
  • Light instancing ignores prototype transform.

MaterialX

  • Difference how V-Ray and Karma render saturation in mtlxcolorcorrect.
  • Blend parameter of triplanar is ignored.
  • nd_normalmap scale does not work with inputs.
  • MaterialX Transmission Features values do not affect the render.
  • Tiled Image VOP UV Offset values are flipped compared to Karma.
  • SSS scale not working.
  • Triplanar texture bitmaps are not set.
  • Using "Mix" VOP with a Standard Surface with Opacity < 1.0 produces unexpected results.
  • Wrong MtlX tiling when using mtlxconstant.
  • Wrong MtlX tiling when using mtlxconstant.

IPR

  • Inconsistent behavior when disable/enable display flag of volumes during IPR.
  • Crash with instanced volume.
  • Rare crash when when manually transforming lights or geometry if Motion Blur is enabled and keyframe animation is present with only one key.
  • Crash when changing the timeline frame with a Background Layer from the Renderer ROP.
  • Crash when changing Num. Samples from Object Properties with Velocity motion blur.
  • Creating Lights does not affect IPR.
  • Crash when using a hotkey to access an IPR Debug Shading mode.
  • Python dead-locking.

USD

  • Image aspect is not set in Standalone.
  • Missing motion blur in Standalone.
  • Direct light is too bright.
  • Dome light's Shadow Bias parameter is not exported.
  • Crash on exit / delegate switch in the usdview.

UsdView

  • Incorrect camera switching.
  • Slow exit after using V-Ray Hydra Delegate.

VFB

  • Undo and Redo are not working properly when there is a Background layer.
  • VRAY_VFB_SRGB = 2 prevent VFB to use ocio settings set via env vars.
  • Crash on Linux on VFB move while rendering.
  • Window elements extra padding on Hi=DPI.

V-Ray

  • Specific LPE label 'msheen' causes all other LPEs that use light tags to start returning empty/black result in Houdini.
  • Light Path Expressions in "vanilla" Houdini have no effect when not using light tags, and the light has to be explicitly included in the Lights parameter.
  • SOP-level Object Properties with a value of -1 (negative) are treated as +1 (positive).
  • UVs are not working on particle system.
  • BRDFAlSurface : consider_all_objects is missing in the UI.
  • VRayMTL Opacity incorrect when VRayImageFile is plugged as a source.
  • Inconsistent motion blur depending on nsamples/duration.
  • Wrong time samples for GeomMeshFile when moblur duration is less than 1 frame.
  • Texture filtering causes blurry textures when using rest attributes (reference mesh) for Triplanar projection.
  • Camera FOV changes between certain frames when focus distance parameter is animated.
  • Motion Blur difference between GUI and Standalone in specific case.
  • 'Save Cryptomatte Separately' does not work for exr files.
  • Wrong V-Ray Material output when TriPlanar texture is used in the bump slot.
  • Crash with textured instanced lights in specific scene.
  • Volume Shader's Fire Lights have no effect.
  • Deep Output is always enabled for Render Channel Color (RE) even if "enableDeepOutput" is Off.
  • Animation of Geographic parameters animation is not taken into account for Sun Light.
  • V-Ray Material Refraction and SSS is missing when layered on top of a Clay/Diffuse shader using Blend material.
  • Visibility options have no effect for volumes in Volumetric Geometry mode.
  • Disabling the "Generate Render Elements" toggle for Matte objects has no effect on Cryptomatte output.
  • Render Overscan with bounding box.
  • Sun Light produces pixels with "nan" on linux.

GPU

  • Exception in Core when rendering a scaled VDB.
  • Wrong matte render if "Enable All" matte obj props button was pressed.

Houdini

  • Mixing include/exclude flags in light flags list causes wrong illumination.
  • Chaos Client App is not installed with V-Ray for Houdini installer.
  • Gaussian Splats GUI parameter values are not exported to the VRScene.
  • SSS option has no effect.
  • Crash when importing any asset from the Chaos Cosmos library.
  • Textures for Transparecy by ID have no effect.
  • Wrong export for Linking Links when using the Illumination Mask parameter for V-Ray lights if Velocity Motion Blur is used for native Houdini geometry and Alembic.
  • Gradient Ramp texture renders wrong when exported to a VRScene.
  • Wrong type of bump map input for the Toon material.
  • Rendering a single VRScene for a frame sequence generates only one output image on disk.
  • "Noise Level", "Reflection IOR" and "Refraction Glossiness" types when using V-Ray Channel Color (RE) AOV have wrong export for "Deep Output".
  • Viewport preview for Packed primitives is missing when assigning V-Ray Material Builder at the SOP level.
  • No way to disable Camera Motion Blur if Velocity AOV is present in the scene.
  • Volume without a shader causes a crash on Linux.
  • Parallax osl file stopped working.
  • OSL shader parameters change from UI doesn't affect render output during IPR run.
  • Material Overrides based on attribute have stopped working.
  • BerconNoise doesn't work by default.
  • Some MacOS arm builds on the OSX machine are broken.
  • hou.shelves.reloadShelfFiles() crash.
  • Disable auto-convertion to explicit normals bump type when TriPlanar is used for GPU.
  • V-Ray BakerTool Preview is not working.
  • Crash when loading a VRScene containing GeomInstancer when Preview is enabled.
  • Mesh light imported from a VRScene is visible in frames previous to its creation.
  • UDIM texture baking regression.
  • Background layer is not saved in output images when using Hython.
  • Missing Alembic material assignments when using the Instance node.
  • Instanced lights are not shown in the render element.
  • LightMix values are not stored in the scene/ROP.
  • Missing geometry on first run of GUI IPR or Production render, or VRScene export with particular scene.
  • Invalid handling of geometry scopes.
  • Mix texture's "Use Curve" parameter has no effect.
  • Wrong behavior for Instanced lights when not present in Candidate or Forced ROP Objects lists.
  • Wrong Cosmos texture import of Enscape models.
  • VFB is not showing in latest nightly builds for OSX.
Was this helpful?