User guide

ArnoldObjectSettings

The ArnoldObjectSettings node is populated by the XML files located at ${KATANA_ROOT}

/plugins/Resources/Arnold4.1/GenericAssign. These parameter names and defaults can change between Arnold

versions and, as such, they are provided for you to change. In Katana 2.0v1 the available options as shipped are:

Control (UI) Default Value Function

Geometry

invert_normals Off Flips normal direction.

smoothing Off Controls normal interpolation between polygons.

flip_t none Inverts (flips) the objects T coordinates.

Geometry >Subdivision Surfaces

subdiv_type catclark Only affects subD meshes. Sets the type of mesh subdivision.

iterations 0 Only affects subD meshes. Controls the maximum number of

subD iterations. When set to 0, subD is off (plan polygons).

Setting to an integer n gives n iterations (e.g. if iterations=10

there are 10 iterations).

subdiv_smooth_

derivs

Off Only affects subD meshes. When set to on, this enables

calculation of dPdu and dPdv derivatives, allowing anisotropic

shaders to have a smoother appearance. This capability requires

storing roughly 100 extra bytes of data per vertex, per

keyframe, which is why it’s disabled by default.

Geometry >Subdivision SurfacesGeometry >Adaptive

subdiv_dicing_camera None Can adopt either Scenegraph selection, or Nodegraph selection.

2 NODES A-C | ARNOLDOBJECTSETTINGS