v0.2.0

This release restructures the UI, fixes several bugs and adds a user documentation at misuka-blender.readthedocs.io, covering installation, a shoebox room tutorial, scene settings, acoustic materials, Acoustic Index, exporting, reference tables, scripting and troubleshooting.

What's Changed

Acoustics

• Exports every acoustic band. Band Resolution picks 10 octave or 30 third-octave bands, and Max Time and Sampling Rate set the tape. Before this, every export simulated a single 500 Hz band. (#10)
• Rebuilt the acoustic material panel. Every band has a Keep checkbox that anchors interpolation, absorption and scattering are drawn side by side, and interpolation runs on log frequency. (#11)
• Acoustic Index asks the API whether a material name is a product id, instead of guessing from the name's shape. (#15)
• An acoustic export writes every material as an acousticbsdf, whatever shader nodes it is built on. (#43)
• An acoustic export can carry several emitters, behind a new Allow Multiple Emitters option, and skips the world background. (#53)
• Only point lights and Emission meshes reach an acoustic scene. Spot, sun and area lights are skipped with a warning, and an export with no emitter is refused. (#36)
• An acoustic mesh emitter exports with a null BSDF, so it no longer absorbs the sound that reaches it. (#51)
• An Emission material's Strength sets one radiance for every band. Color is Visual-only. (#60)
• An acoustic emitter emits the point light's power in watts, independent of the light's radius. (#28)
• Adds a Samples setting to the Integrator panel. The acoustic sample count no longer comes from the render engine. (#27)
• Max Energy Loss defaults to 90 dB, down from 300 dB. (#39)

Export

• An unsupported color input falls back to the socket's own value, instead of throwing the whole material away and writing a magenta dummy. Checker Texture exports, and Linear Rec.709 is recognized. (#24)
• Every exported plugin carries an id, so a script can address a shape, a sensor or an emitter by name. (#52)
• Removes the Export IDs option. Exported elements are always named after their Blender objects. (#50)
• The Ignore Default Background checkbox takes effect. (#49)

Breaking changes

• Import (which was broken for acoustic scenes) is gone. bpy.ops.import_scene.mitsuba and File > Import > misuka (.xml) no longer exist. (#64)
• Everything named mitsuba is now misuka: the MISUKA engine ID, scene.misuka, camera.data.misuka, light.misuka_emitter_radius, bpy.ops.export_scene.misuka and the four preference operators. Scripts written against v0.1.1 need updating. (#73)
• bpy.ops.export_scene.misuka() no longer takes export_ids. (#50)
• Acoustic shape ids gain a mesh- prefix. A shape exported as Sphere is now mesh-Sphere. (#52)
• Scattering defaults to 0.5 instead of 0.25 on materials that were never edited, and the per-band Keep flag was renamed, so a v0.1.1 file opens with the Keep boxes cleared. (#11)
• Absorption coefficients are capped at 1. Values above 1 are no longer accepted. (#25)

Full Changelog: v0.1.1...v0.2.0

misuka Blender nightly

Automated build of master, refreshed whenever master changes.
Untested territory - use a tagged release for anything that matters.

Commit: f1e89c1
Built: 2026-09-10 09:38 CEST

misuka-blender v0.1.1

What's Changed

• Compatibility with misuka v0.1
• Compatibility with Blender 3.6 to 5.2
• Updates to the dependency checks and deprecated API calls removed.
• Several bugfixes
• Testing and release workflows updated
• relicensed to GPL-3.0-or-later

Full Changelog: v0.1.0...v0.1.1

misuka-blender v0.1.0

Initial release of the misuka Blender add-on.

Features

• Acoustic scene export for misuka
• Frequency-dependent absorption and scattering
• Adjustable specular lobe width
• AcousticIndex material lookup
• Automatic conversion of Blender scenes to misuka acoustic XML