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SoDepthBuffer
Langue: en
Version: 338888 (ubuntu - 24/10/10)
Section: 3 (Bibliothèques de fonctions)
Sommaire
- NAME
- SYNOPSIS
- Detailed Description
- Member Enumeration Documentation
- Constructor & Destructor Documentation
- Member Function Documentation
- Member Data Documentation
- SoSFBool SoDepthBuffer::testEnable depth buffer testing. Defaults to TRUE.
- SoSFBool SoDepthBuffer::writeEnable depth buffer writing. Defaults to TRUE.
- SoSFEnum SoDepthBuffer::functionWhich depth function to use. Defaults to LESS.
- SoSFVec2f SoDepthBuffer::rangeThe value range for the depth buffer data. Defaults to [0.0-1.0]. The range will be clamped to [0.0-1.0].
- Author
NAME
SoDepthBuffer -The SoDepthBuffer class is a node used to control the GL depth buffer.
SYNOPSIS
#include <SoDepthBuffer.h>
Inherits SoNode.
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.
- •
- you can enable and disable depth buffer testing during rendering,
- •
- you can enable and disable writing to the depth buffer during rendering,
- •
- you can set the function used for the depth buffer testing, and
- •
- you can set the value range used in the depth buffer.
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
enum SoDepthBuffer::DepthWriteFunctionEnumeration 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
SoSFBool SoDepthBuffer::testEnable depth buffer testing. Defaults to TRUE.
SoSFBool SoDepthBuffer::writeEnable depth buffer writing. Defaults to TRUE.
SoSFEnum SoDepthBuffer::functionWhich depth function to use. Defaults to LESS.
SoSFVec2f SoDepthBuffer::rangeThe value range for the depth buffer data. Defaults to [0.0-1.0]. The range will be clamped to [0.0-1.0].
Author
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