Coin Logo http://www.sim.no/
http://www.coin3d.org/

SoDepthBuffer Class Reference
[Node Classes]

The SoDepthBuffer class is a node used to control the GL depth buffer. More...

#include <SoDepthBuffer.h>

Inheritance diagram for SoDepthBuffer:
SoNode SoFieldContainer SoBase

List of all members.

Public Types

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

Public Member Functions

 SoDepthBuffer (void)
virtual void GLRender (SoGLRenderAction *action)

Static Public Member Functions

static void initClass (void)

Public Attributes

SoSFBool test
SoSFBool write
SoSFEnum function
SoSFVec2f range

Protected Member Functions

virtual ~SoDepthBuffer ()

Detailed Description

The SoDepthBuffer class is a node used to control the GL depth buffer.

With this node you can control properties related to the OpenGL depth buffer in a variety of ways.

The value range setting is useful if you need to segment the 3D world into different segments with different depth buffer resolutions to get a more optimal depth buffer resolution distribution than what a single, uniform depth buffer value range can give you.

Be aware that this class is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.

Since:
Coin 3.0

Member Enumeration Documentation

Enumeration for the various depth functions.

Enumerator:
NEVER 

Never passes.

ALWAYS 

Always passes.

LESS 

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

LEQUAL 

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

EQUAL 

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

GEQUAL 

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

GREATER 

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

NOTEQUAL 

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


Constructor & Destructor Documentation

SoDepthBuffer::SoDepthBuffer ( void   ) 

Constructor.

SoDepthBuffer::~SoDepthBuffer (  )  [protected, virtual]

Destructor.


Member Function Documentation

void SoDepthBuffer::initClass ( void   )  [static]

Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.

Reimplemented from SoNode.

void SoDepthBuffer::GLRender ( SoGLRenderAction action  )  [virtual]

Action method for the SoGLRenderAction.

This is called during rendering traversals. Nodes influencing the rendering state in any way or who wants to throw geometry primitives at OpenGL overrides this method.

Reimplemented from SoNode.


Member Data Documentation

Enable depth buffer testing. Defaults to TRUE.

Enable depth buffer writing. Defaults to TRUE.

Which depth function to use. Defaults to LESS.

The value range for the depth buffer data. Defaults to [0.0-1.0]. The range will be clamped to [0.0-1.0].


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

Copyright © 1998-2010 by Kongsberg Oil & Gas Technologies. All rights reserved.

Generated on 7 Jan 2016 for Coin by Doxygen 1.6.1.