public class SoBackground extends SoNode
Note: Some background nodes can set Alpha values (as well as R, G and B values) in an RGBA framebuffer, but they cannot make Open InventorÂ’s rendering window transparent with respect to other windows on the desktop. This is a window system specific feature and can only be handled through the window system API. Thus, modifying the Alpha value of the background won't have any visible effect on the rendered image. However, setting an Alpha value can be useful when exporting to an image format that supports transparency (like PNG for example). In this case the Alpha value of the background will be exported and can be used to perform some kind of compositing inside an image manipulation program.
See also:
Inventor.ConstructorCommandVERBOSE_LEVEL, ZeroHandleaffectsState, callback, copy, copy, distribute, doAction, getAlternateRep, getBoundingBox, getByName, getMatrix, getPrimitiveCount, getRenderUnitID, GLRender, GLRenderBelowPath, GLRenderInPath, GLRenderOffPath, grabEventsCleanup, grabEventsSetup, handleEvent, isBoundingBoxIgnoring, isOverride, pick, rayPick, search, setOverride, touch, writecopyFieldValues, copyFieldValues, enableNotify, fieldsAreEqual, get, getAllFields, getEventIn, getEventOut, getField, getFieldName, hasDefaultValues, isNotifyEnabled, set, setToDefaultsdispose, getEXTERNPROTO, getName, getPROTO, isDisposable, isSynchronizable, setName, setSynchronizablegetAddress, getNativeResourceHandle, startInternalThreads, stopInternalThreadsGenerated on January 23, 2025, Copyright © Thermo Fisher Scientific. All rights reserved. http://www.openinventor.com