Exporting a Blender Scene - mitsuba-renderer/mitsuba-blender GitHub Wiki

The active Blender scene can be exported as a Mitsuba XML scene under File -> Export -> Mitsuba (.xml).

Export parameters

  • Selection Only: Only export the currently selected Blender objects.
  • Split File: Separate the resulting XML into multiple files depending on the type of data (meshes, materials, etc...).
  • Export IDs: Use the object's Blender name as an identifier in the Mitsuba XML. This identifier can be used as a reference to a definition to limit duplications.
  • Ignore Default Background: Do not export Blender's default gray sky color, resulting in a black background.
  • Forward/Up: Coordinate system transformation during export. The default values should work in most cases.

ℹī¸ In case of errors, log messages are printed to the console window. To enable it under Windows, click on Window -> Toggle System Console. Under MacOS and Linux, simply run blender from the command-line.

What's supported ?

Currently, this feature only allows you to save a Blender scene as a Mitsuba-compatible scene. Future versions may support more fancy features, such as custom nodes for materials or in-blender rendering.

Exporting the following Blender objects is supported:

  • Objects:
    • Meshes
    • Metaballs
    • Text
    • Nurbs surfaces
  • Material Nodes:
    • Diffuse BSDF :warning: Mitsuba does not handle rough diffuse BSDFs currently
    • Glossy BSDF
    • Emission BSDF
    • Glass BSDF
    • Principled BSDF
    • Image Texture
    • Vertex Colors
    • Mix Shader
    • Add Shader :warning: Adding two BSDFs is not supported
  • Light Sources:
    • Point Light
    • Spot Light
    • Sun Light
    • Area Lights :warning: Ellipse area lights are not supported
    • Environment Maps