OpenGLContext.browser.nodes

class VisualContext( BrowserContext ):

platform

exposedField SFNode SFNode None

userspin

exposedField SFBool userspin 0

userzoom

exposedField SFBool userzoom 0

getBoundingBox( self )

Get the last-known scenegraph bounding-box

getSceneGraph( self )

Get the current scenegraph

getViewPlatform( self )

Customization Point: Instantiate ViewPlatform for this context

The default implementation is to instantiate a viewplatform.ViewPlatform with position equal to self.initialPosition and orientation equal to self.initialOrientation.

See: OpenGLContext.shadow.shadowcontext for example where this method is overridden

ViewPort( self , width , height )

Set the size of the OpenGL rendering viewport for the context

This implementation assumes that the context takes up the entire underlying window (i.e. that it starts at 0,0 and that width, height will represent the entire size of the window).

class VisualScene( SceneGraph ):

A Visual-style scenegraph

ambient

exposedField SFFloat ambient 0.2

background

exposedField SFColor background (0, 0, 1)

lights

exposedField MFVec3f lights 3, 2)

objects

exposedField MFNode objects []

renderedChildren( self , types = (<class 'vrml.vrml97.nodetypes.Children'>, <class 'vrml.vrml97.nodetypes.Rendering'>) )

List of all children that are instances of given types

Default scenegraph uses "children" while the VPython scenegraph uses "objects"...

class VisualViewPlatform( Node ):

View-platform-like functionality

autocenter

exposedField SFBool autocenter 1

autoscale

exposedField SFBool autoscale 1

center

exposedField SFVec3f center (0, 0, 0)

context

exposedField WeakSFNode SFNode None

forward

exposedField SFVec3f forward (0, 0, -1)

fov

exposedField SFFloat fov 1.0471975512

range

exposedField SFVec3f range (10, 10, 10)

scale

exposedField SFVec3f scale (0.1, 0.1, 0.1)

uniform

exposedField SFBool uniform 0

up

exposedField SFVec3f up (0, 1, 0)

frustum( self , mode , size )

Set up the viewing Frustum

render( self , mode )

Set up the perspective and model-view matrices

Basically, we want to back-project

context.getBoundingBox() -> center and range/scale values

setViewport( self , x , y )

Set the viewport for aspect calculations

Classes