Drawing and refresh

The drawing of custom shapes can be done using class deriving from MPxGeometryOverride, MPxSubSceneOverride, or MPxDrawOverride class in Viewport 2.0.

See apiMeshGeometryOverride class and apiMeshSubSceneOverride class in the apiMeshShape example plug-in for an example of drawing custom shapes.

MPxGeometryOverride

MPxGeometryOverride is the API entry point for defining high level, draw API agnostic support for custom DAG objects in Viewport 2.0. It is relatively simple to work with; but as a result, only limited control of the draw is available.

See more details in the section: Geometry Overrides.

MPxSubSceneOverride

MPxSubSceneOverride is the API entry point for defining high-level Viewport 2.0 drawing of plug-in DAG objects that require a large number of drawable entities. MPxSubSceneOverride falls in between MPxDrawOverride and MPxGeometryOverride with respect to the amount of control given to the implementation.

See more details in the section: Sub-scene Overrides.

MPxDrawOverride

MPxDrawOverride is the API entry point for defining low-level drawing of plug-in DAG objects in Viewport 2.0. MPxDrawOverride allows full control over the entire draw of the object, but as a result the implementation is entirely responsible for the draw.

See more details in the section: Draw Overrides.