SoDepthBuffer Class Reference

VSG extension Depth buffer parameters node. More...

#include <Inventor/nodes/SoDepthBuffer.h>

Inheritance diagram for SoDepthBuffer:
SoNode SoFieldContainer SoBase SoRefCounter SoTypedObject

List of all members.

Public Types

enum  DepthWriteFunction {
  NEVER = SoDepthBufferElement::NEVER,
  LESS = SoDepthBufferElement::LESS,
  EQUAL = SoDepthBufferElement::EQUAL,
  LEQUAL = SoDepthBufferElement::LEQUAL,
  GREATER = SoDepthBufferElement::GREATER,
  NOTEQUAL = SoDepthBufferElement::NOTEQUAL,
  GEQUAL = SoDepthBufferElement::GEQUAL,
  ALWAYS = SoDepthBufferElement::ALWAYS

Public Member Functions

virtual SoType getTypeId () const
 SoDepthBuffer ()
virtual void setOverride (const SbBool state)
virtual SbBool isOverride () const

Static Public Member Functions

static SoType getClassTypeId ()

Public Attributes

SoSFBool test
SoSFBool write
SoSFEnum function
SoSFVec2f range
SoSFBool clearBuffer

Detailed Description

VSG extension Depth buffer parameters node.

This class specifies the depth buffer parameters used for rendering, including:

It can also be used to clear the depth buffer by setting the clearBuffer field to true.

To control whether frame buffer color components are written or not, see SoColorMask.





SoPolygonOffset, SoDepthOffset, SoColorMask, SoGLRenderAction

See related examples:

DepthBuffer, DepthOffset, PolygonOffset

Member Enumeration Documentation

Depth function mode as defined by OpenGL.


Never passes.


Passes if the incoming depth value is less than the stored depth value.


Passes if the incoming depth value is equal to the stored depth value.


Passes if the incoming depth value is less than or equal to the stored depth value.


Passes if the incoming depth value is greater than the stored depth value.


Passes if the incoming depth value is not equal to the stored depth value.


Passes if the incoming depth value is greater than or equal to the stored depth value.


Always passes.

Constructor & Destructor Documentation

SoDepthBuffer::SoDepthBuffer (  ) 


Member Function Documentation

static SoType SoDepthBuffer::getClassTypeId (  )  [static]

Returns the type identifier for this class.

Reimplemented from SoNode.

virtual SoType SoDepthBuffer::getTypeId (  )  const [virtual]

Returns the type identifier for this specific instance.

Reimplemented from SoNode.

virtual SbBool SoDepthBuffer::isOverride (  )  const [inline, virtual]

Returns the state of the override flag. .

Reimplemented from SoNode.

virtual void SoDepthBuffer::setOverride ( const SbBool  state  )  [inline, virtual]

Turns the override flag on or off.

The following property nodes are affected by the override flag: SoBaseColor, SoColorIndex, SoComplexity, SoDepthBuffer, SoDrawStyle, SoEnvironment, SoFont, SoFullSceneAntialiasing, SoLightModel, SoMaterial, SoMaterialBinding, SoPackedColor, SoPattern, SoPickStyle, SoPolygonOffset, SoShapeHints, SoVertexProperty, SoTextProperty.

Every node has an override flag associated with it. The override flag is a powerful mechanism typically used (sparingly) near the top of a scene graph. When this flag is set, any nodes of the same type encountered later in the graph are ignored even if they also have their own override flag set. For example, you might insert a line-style SoDrawStyle node at the top of a graph to ensure that the whole scene is drawn as wireframe objects, regardless of drawing styles specified lower in the scene graph. Use the setOverride() method to set and reset the override flag. The isOverride() method returns the state of the override flag.Normally, the override flag is not used within a scene graph for modeling. Use it in applications where you need to specify a temporary change to the whole graph.Note: The override flag is not written to a file.Setting the override flag on a node whose field values are not inherited (for example on a sphere with a radius of 7) has no effect on other nodes in the graph of that type. .

Reimplemented from SoNode.

Member Data Documentation

If true, the depth buffer is cleared when the node is traversed.

The extent of the buffer that is actually cleared may be limited using an SoViewportClipping node. Default is FALSE.

Note: Be careful when using this feature along with a transparency mode other than SoGLRenderAction::NO_SORT because the objects rendering order might be different from their ordering in the scene graph.

NOTE: field available since Open Inventor 8.6

Depth comparison function to use (glDepthFunc).

Use enum DepthWriteFunction. Default is LESS.

Value range for the depth buffer (glDepthRange).

Default is [0.0-1.0]. The range will be clamped to [0.0-1.0] by OpenGL.

Enable depth buffer testing (glEnable).

Default is TRUE.

Note that disabling depth testing will prevent the depth buffer from being updated even if depth buffer writing is set to TRUE.

Enable depth buffer writing (glDepthMask).

Default is TRUE.

The documentation for this class was generated from the following file:

Open Inventor Toolkit reference manual, generated on 15 Mar 2023
Copyright © Thermo Fisher Scientific All rights reserved.