Release Notes (3.6)

Older Versions:

Redshift 3.5 Release Notes

Redshift 3.0 Release Notes

3.6.04 (2024.07)

Release Notes

[C4D] Added support for automatic displacement without the need for an RSObject tag. Legacy scenes preserve the previous behaviour via a new compatibility option
[C4D] Added UV scale, offset and rotation to the Substance node
[C4D] Freeze Tessellation is now enabled by default in Viewport IPR and the RenderView
[C4D] Fixed bug where instanced objects were allowed to become visible, even though the instance was hidden
[C4D] Fixed bug where polygon selection changes from node-based objects were not always detected
[C4D] Fixed a performance issue when loading scenes that reference very large file sequences
[C4D] Changed the volume padding range to allow negative values
[Maya] Fixed bug in Redshift installer on Windows which was setting up the Maya.env for Maya 2025 incorrectly with 2024 paths
[Max] Fixed incorrect archival of Bokeh and Distortion image file assets in Redshift Optical Camera settings
[Houdini] Added support for Houdini 20.0.751 and dropped support for 20.0.653
[Houdini] Freeze Tessellation is now enabled by default in the RenderView
[Houdini] Fixed bug that could affect the default value of the OSL nodes popup widget
[Houdini] Fixed bug that could enable the not supported OptiX denoising in Redshift RT
[Houdini] Fixed a problem in the RSLight HDAs related to warnings while loading scenes in H19.x
[Hydra] Added support for Solaris 20.0.751 and dropped support for 20.0.653
[Hydra] Fixed bug that could cause a crash while working with OSL nodes
[Hydra] Fixed bug that could affect the rendering of the ramp nodes with default parameters
[USD Procedural] Fixed bug that could affect the loading of the procedural from the redshiftCmdLine tool on Linux
[Metal] Fix crashes on M3
[RT] Denoiser improvements for both movement and convergence
[RT] Improved first frame quality and responsiveness
[All] Tiles shader now correctly works for lights
[All] Fixed primary ray visibility for Contour shader in production renderer
[All] Add new Distance shader
[All] Fixed a bug with motion vector AOVs when hardware raytracing is enabled
[All] Fixed a bug introduced in 3.6.02 that always bypassed OCIO color management when rendering to file in some plugins
[All] Fixed a hang when using OSL shaders

3.6.03 (2024.06)

Release Notes

[Max] Fixed bug introduced in 3.6.02 that disabled Redshift OCIO color management in 3ds Max 2023 and older
[Max] Fixed script error in Redshift toolbar when pressing Render tool button in 3ds Max 2025
[Max] Add missing parameters "Transparent Shadows" and "Additive Blend" to RS Incandescent material
[Max] Diffuse and specular contribution for non-Redshift lights now honored for RS Toon Material
[Houdini] Added support for Houdini 20.0.724 and dropped support for 20.0.625
[Hydra] Added support for Solaris 20.0.724 and dropped support for 20.0.625
[All] Fix for "NvAPI_GPU_GetMemoryInfoEx failed with return code -3" error on systems without very recent NVidia drivers

3.6.02 (2024.06)

Release Notes

[C4D] Added a Viewport port to the Output node
[C4D] Added a Contour option to the Reference node
[C4D] Fixed crash when using Freeze Geometry in conjunction with Viewport Solo
[C4D] Fixed hang when loading scenes with certain substances in ShaderGraph materials
[C4D] Fixed bug where ShaderGraph XGroups loaded via the X-Pool were bypassing part of the format upgrade
[C4D] Fixed bug where certain substance channels in float 16-bit or 32-bit formats would use an incorrect color-space
[C4D] Fixed a crash when rendering with motion-blur enabled
[C4D] AOVs that are not supported in progressive mode or RT will now be disabled automatically
[Maya] Added support for Maya 2025
[Maya] Added templates for material nodes that lacked ones
[Maya] Fixed crash caused by invalid input to rsRender via command line
[Maya] Fixed bug with contour node being connected to displacement shader
[Maya] Changed unexpected behavior of Light List selection for Toon material
[Maya] Modified scene translation logic to avoid allocating buffers for unsupported AOVs when progressive rendering
[Maya] Fixed bug that prevented parsing of shading networks connected to the opacity input of an RS physical light
[Max] Added support for 3ds Max 2025
[Max] Added support for 3ds Max OCIO color management (3ds Max 2024 and 2025)
[Max] Fixed bug introduced in 3.5.16 that produced the wrong field of view when using camera shift
[Max] Fixed bug where new Diameter parameter on legacy Volume material was missing
[Max] Fixed bug where cloning RS Material Output material did not clone its sub-materials/textures
[Max] Fixed incorrect ordering of Volume and GI contribution scale controls in UI for all lights
[Max] 3ds Max OCIO color management is supported by Redshift Color Picker, now available to any renderer
[Max] 3ds Max OCIO input colorspace is honored when Redshift input colorspace is Auto
[Max] 3ds Max OCIO output color management is honored except for Redshift EXR output
[Max] Added new 'redshift' MAXScript interface to provide a namespace for any future global functions
[Max] Redshift toolbar now remembers the last-selected Physical Light type
[Max] Redshift toolbar icons improved for light-UI themes (3ds Max 2025 only)
[Houdini] Added support for Houdini 20.0.688 and dropped support for 20.0.590
[Houdini] Added support for point attributes to the procedural packed alembics instances
[Houdini] Added support for "Principled Hair" and "Toon Material" shaders as materials outside material networks
[Houdini] Slight performance improvement in scene extraction code (about 10% faster in some cases)
[Houdini] Modified scene translation logic to avoid allocating buffers for unsupported AOVs when progressive rendering
[Houdini] Fixed recently introduced bug that would cause a rare crash related to some shader setups
[Houdini] Fixed bug that could affect the inclusion of custom camera objects in the RenderView cameras list
[Hydra] Added support for Solaris 20.0.688 and dropped support for 20.0.590
[Hydra] Improved accuracy of camera FOV calculation from the Data Window NDC parameters
[Hydra] Fixed bug that could cause a freeze on exit from Solaris or husk on MacOS
[Hydra] Fixed bug that could cause a freeze or crash when an OpenVDB file is not available
[Hydra] Fixed bug that could affect the ramp parameters shader translation in Solaris 19.5
[Hydra] Fixed bug that could affect the creases tessellation when the mesh is rightHanded
[Hydra] Fixed bug that could affect the normals and tangents when the mesh is rightHanded
[Hydra] Fixed bug that could affect the visibility state of the instances
[Hydra] Fixed bug that could affect the Scene Import Camera LOP script if the camera doesn't have RS parameters
[Hydra] Fixed bug that could affect the camera FOV motion blur if the shutter start is 0.0
[Hydra] Fixed bug that could affect the GPUs configuration from the REDSHIFT_GPUDEVICES env. variable
[Blender] Fix for Color Control 'Contrast' slider UI range(forum report)
[Blender] Added support for Blender 4.0 and 4.1
[Metal] Added Metal hardware ray tracing motion blur support
[Metal] Fix crashes on M3
[RT] Material changes are smoothly and correctly updated
[RT] Fixed a bug where grazing angle views could produce artifacts
[RT] Fixed a crash when adding a dome light in an empty scene
[RT] Improved convergence for glossy surfaces
[RT] Significant performance improvement rendering instanced geometry
[RT] Experimental improvements for light sampling, improved performance and reduced variance in most scenes
[All] Instanced mesh lights now consume much less memory
[All] Fixed a bug that prevented duplicated volumes from having their materials updated correctly
[All] Fixed a bug in the Contour shader that occured when "Detect Separate Meshes" is disabled and the object is transparent
[All] Added new options to the Toon Material to control how opacity affects reflection+rim and also how semi-transparency rays interact with self
[All] Added new additive blend option to the Incandescent Shader
[All] Added new light contribution options to control how toon materials are affected by lights
[All] Fixed rare NV-Link bug when using OptiX ray tracing
[All] Added an option to expand volume bounding box
[All] Added an option to disable contours in reflection and refraction
[All] Added x/y offsets and scaling parameters to Tonemap Pattern shader
[All] Fixed a bug that volumes inside a transmissive object ignored light volume contribution and "Block Volumes in SSS Mediums" option
[All] Fixed an error in the texture mipmap generation that caused a slight darkening of the textures
[All] Reduced texture processing time
[All] Fixed a bug that caused NaN values in high values of volume emission
[All] Fixed a bug that prevented shadow evaluation when a node is connected to multiple volume shader inputs
[All] Fixed a bug that caused incorrect toon rim shading results, including support for point lights with "Shadow Softness"
[All] Fixed a bug that caused incorrect toon specular mask results when rim is also enabled
[All] Fixed a bug that caused incorrect values in volumetric deep
[All] Improved sampling of mesh lights with very thin and scattered meshes
[All] Fixed a bug that would lead to OSL shader instability under certain conditions
[All] Reinstated camera exposure compensation option for global fog color, broken since 3.6.00
[All] Added new cross-hatch pattern to Tonemap Pattern shader
[All] Fixed issues that may affect license check stability, particularly in C4D
[All] Added OCIO override options to the command-line renderer
[All] Fixed issue where display proxy file in mesh mode would crash
[All] Fixed issue where TIFF images saved by Redshift would cause a crash in Nuke
[All] Fixed an issue where HIP devices would fail to calculate volumetric GI
[All] Fixed a bug that caused the Ramp shader not working on polygon selections
[All] Fixed crash with Toon material when rendering with CPU
[Alembic Procedural] Fixed bug that could affect the normals in the subd meshes without tessellation

3.6.01 (2024.04)

Release Notes

[C4D] Fixed a crash when rendering previews for certain materials (eg imported from GLTF files)
[Max] Fixed bug where Render View used Optical camera mode in non-upgraded scenes, resulting in a mismatch between display and file output
[Max] Fixed bug introduced in 3.6.00 where legacy Volume material grid names did not work
[Max] Fixed bug where new Anisotropy Mode parameter on legacy Volume material was missing
[Hydra] Fixed bug that could affect the camera FOV in some DataWindowNDC cases
[Katana] Fixed several issues in the Katana 7.0 live rendering mode
[Metal] Fixed the issue that offline compiled Metal kernels for AMD GPUs were not being used
[Metal] Fixed problem with volumes on Metal using AMD GPUs
[CPU] Fix macOS cpu crashes related to empty scenes and material preview rendering
[All] Added option to toggle contours between different meshes; By default separate meshes are not detected
[All] Fixed a performance issue in scenes with spot lights
[All] Fixed a bug in the Distorter shader where the distortion texture leaked into the primary texture
[All] Multiple performance-related improvements over 3.6.00, especially for scenes with global volumes or no volumes
[All] Fixed various legacy issues related to global volume interaction with transparent materials
[All] Fixed recently introduced bug that would cause invalid material connections to crash instead of issuing a warning
[All] Toon material light lists now work in proxy files
[All] Resolve problem with node locked licenses which expire in april 2024

3.6.00 (2024.04)

Release Notes

[C4D] Added localization for German and Korean (in all supported versions of C4D)
[C4D] Added support for rendering material previews in the background with the CPU, at the same time as any IPR or final renders. This is controlled by a new material preview mode option in the preferences
[C4D] Added support for the new Cinema 4D particle system in 2024.4
[C4D] Fixed a color-management issue with Substances in Nodes, ShaderGraph, and emulated Standard materials
[C4D] Fixed bug where the default material was ignored when material override was enabled
[C4D] Fixed bug where material previews in Nodes might be blank under certain conditions
[C4D] Fixed bug where objects with no materials were ignored by the material override options
[C4D] Fixed bug where the IPR would not detect changes to the RSObject tag under certain conditions
*** IMPORTANT *** To support the new particle system in Cinema 4D 2024 the minimum required version of the 2024 plugin has been increased to 2024.4
[Maya] Added mechanism for specifying light lists on Toon material
[Maya] Fixed bug with broken Custom AOV
[Maya] RS shader menu button now defaults to rsStandardMaterial
[Maya] Added optimization for processing of n-gons during scene parsing
[Max] Added support for RS Material Output material
[Max] Fixed bug in Redshift Color Picker where alpha controls were not shown/hidden correctly
[Max] Support Autodesk fixes from 3ds Max 2024.2 that address quantization/overflow of colors sent to and from Redshift Color Picker
[Max] Redshift Light Lister now opens color picker as a modeless (non-blocking) window to work around 3ds Max SDK limitations
[Houdini] Added support for Houdini 20.0.625 and 20.0.653 and dropped support for 20.0.506 and 20.0.547
[Houdini] Additional improvements to the error handling functions to prevent Houdini crashes after any Redshift render-time critical issue
[Houdini] Added new option to the RS OBJ spare parameters to disable the automatic instancing of the procedural packed alembics
[Houdini] Added error messages when failing to write image or proxy files on disk
[Houdini] Fixed bug that could affect the IPR updating of the materials params just after assigning them to any new object
[Houdini] Fixed bug that could affect the IPR updating of the materials after some VOP nodes rewiring events
[Houdini] Fixed bug that could affect the RSLight and RSDomeLight texture color space options
[Houdini] Fixed bug that could crash Redshift if a new scene is loaded while the IPR is rendering
[Houdini] Fixed bug that could affect the rendering of shader nodes already available in previous scenes with the same node name
[Houdini] Fixed bug that could affect the "Redshift_setGPU" hscript command if used after initialize Redshift
[Houdini] Fixed bug that could affect the transformations of the alembic procedural instances
[Houdini] Fixed bug that could affect the viewport rendering feature on Linux
[Houdini] Improved IPR update of volume objects after modifying the grid names in the volume shaders
[Houdini] Addressed the Single Pass Deep Output "Disable Lights" feature to also disable global and sky environments
[Hydra] Added support for Solaris 20.0.625 and 20.0.653 and dropped support for 20.0.506 and 20.0.547
[Hydra] Added support for ramps with multiple interpolation types in the knots
[Hydra] Added RSPhysicalSky LOP to help in the configuration of the RS sun/sky environment
[Hydra] Added support for the Solaris/Hydra "Stop/Resume" rendering workflow as replacement for the "Pause/Resume" feature not supported by the core
[Hydra] Fixed bug that could cause a crash if the tangent attributes can't be computed due to the lack of normals or uvs
[Hydra] Fixed bug that could cause that matting or visivility do not work with PointInstancer using instanceable primitives as prototypes
[Hydra] Fixed bug that could cause viewport updating problems in the instances visibility or matte options
[Hydra] Fixed bug that could cause problems while working with multiple UV maps
[Hydra] Fixed bug in the Redshift and RenderVars LOPs single layer EXR files when there are no additional AOVs
[Hydra] Fixed bug in the Redshift LOP that was making it time-dependent while rendering cryptomatte or deep AOVs
[Hydra] Fixed bug that could cause problems to load the Hydra plugin on Linux in some Solaris 20.0 versions
[Hydra] Fixed bug that could affect the default light intensity in batch rendering
[Hydra] Fixed bug that could affect the orientation of the volume instances
[Hydra] Devices configuration options exposed in the Solaris viewport settings
[Hydra] Downsampling Rate parameter exposed in the Redshift LOP
[USD Procedural] Added support for MacOS Apple Silicon
[Katana] Added support for global arbitrary user attributes
[Katana] Added error messages when failing to write image or proxy files on disk
[Metal] Fix crash when first rendering with IPR on M3
[HIP] Added support for OSL, required driver 23.Q4
[CPU] Fixed random CPU crashes
[RT] Fixed a bug leading to strong fireflies
[RT] Fixed several convergence issues, leading to better convergence in a large number of cases, leading to significantly better sampling convergence
[RT] Improved navigation quality and fixed a bug producing ghosting effects
[RT] The denosier has less color bleeding and flickering under motion
[RT] Improved Mesh Light sampling
[All] Added Programmable Volume Shaders (inc. major refactor and improvements of volume sampling and shading technology)
[All] Added new Toon Material
[All] Added new Tonemap Pattern Shader for toon
[All] Added new Contour Shader for toon
[All] All new mesh light technology, to bring mesh light features and quality in line with other area lights
[All] Added texturable opacity control to area lights
[All] Unified Volumetric Fog and Volume Object rendering techonology for a better integration
[All] Added Jendersie-D'Eon anisotropy model
[All] Added Scalar and Color Volume Attribute Shaders that allow volume attribute lookup
[All] Changed the behaviour of the shadow cut-off threshold optimization
[All] Added raybouncelevel output to RS State Shader
[All] Changed Standard Material transmission single scatter to be more artist friendly and predictable, based on the new OpenPBR spec
[All] Fixed a bug that caused volume emission being too strong in reflection
[All] Fixed a CUBE file parsing bug resulting in some LUT files failing to load
[All] Fixed a crash when knots were removed from the RS Ramp shader
[All] Fixed recently introduced bug that could cause this error message: "Range for 'm_InstanceIDMOD' has been overwritten (by later recursions) and was not marked as 'WillBeReadInTheFuture'"