OpenGLContext.scenegraph.shape

Renderable geometry composed of a geometry object with applied appearance

Classes

class Shape( Shape ):

Defines renderable objects by binding Appearance to a geometry node

The Shape node defines a renderable geometric object. Basically it is a binding of a particular geometry node to a particular appearance node. The Shape node coordinates the rendering of the appearance and geometry such that the appearance is applied only to the appropriate geometry.

Attributes of note within the Shape object:

geometry: pointer to the geometry object, often an arraygeometry object, although potentially a Nurb object, or similar geometric primitive.

appearance: pointer to the appearance object. This must be an actual Appearance object or None to the default appearance.

Reference: http://www.web3d.org/x3d/specifications/vrml/ISO-IEC-14772-IS-VRML97WithAmendment1/part1/nodesRef.html#Shape

boundingVolume( self , mode )

Create a bounding-volume object for this node

This is our geometry's boundingVolume, with the addition that any dependent volume must be dependent on our geometry field.

Render( self , mode = None )

Do run-time rendering of the Shape for the given mode

RenderTransparent( self , mode )

sortKey( self , mode , matrix )

Produce the sorting key for this shape's appearance/shaders/etc

visible( self , frustum = None , matrix = None , occlusion = 0 , mode = None )

Check whether this renderable node intersects frustum

frustum: the bounding volume frustum with a planes attribute which defines the plane equations for each active clipping plane
matrix: the active OpenGL transformation matrix for this node, used to determine the transforms for the grouping-node's bounding volumes. Is calculated from current OpenGL state if not provided.