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Xiang Feng edited this page Jun 16, 2022 · 10 revisions

Welcome to the Asuna wiki! Asuna is a renderer based on vulkan ray tracing pipeline.

This wiki documents the usage, file format, and internal design of the Asuna renderer. It is currently a work in progress, hence some parts may still be incomplete or missing.

Scene description file

Scene is described by a json file in Asuna. A typical scene description json is shown as below:

{
  "state": { ... },
  "camera": { ... },
  "lights": [ ... ],
  "textures": [ ... ],
  "materials": [ ... ],
  "meshes": [ ... ],
  "instances": [ ... ],
  "shots": [ ... ]
}

Scene description file is typically composed of 7 parts:

  • state: settings for path integrator and post processor. This part is required for the scene file.
  • camera: settings for camera used in the scene. Up to now, Asuna supports only one camera per scene. This part is required for the scene file.
  • ➕lights: all the lights in the scene. This part is optional.
  • ➕materials: all the materials in the scene. This part is optional.
  • ➕textures: all the textures in the scene. This part is optional.
  • meshes: all the meshes in the scene. This part is required for the scene file.
  • instances: all the instances in the scene. A instance is composed of a mesh, a material and a transformation used for that mesh. This part is required for the scene file.
  • ➕shots: shot is used to describe the pose or extrinsic parameter of the camera and the state used for that pose. A scene can have multiple shots, so you can render multi view images. This part is optional.

Example scene file can be found in Cornell Box and Asuna-Scenes.

For more details of forementioned 8 parts, please refer to their corresponding pages.

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