SoUniformGridProjectionClipping Class Reference
[Nodes]

Clips a volume with the depth map projection of a shape. More...

#include <VolumeViz/nodes/SoUniformGridProjectionClipping.h>

Inheritance diagram for SoUniformGridProjectionClipping:

Public Member Functions
virtual SoType	getTypeId () const
	SoUniformGridProjectionClipping ()
void	GLRender (SoGLRenderAction *action)
Static Public Member Functions
static SoType	getClassTypeId ()
Public Attributes
SoSFNode	sceneGraph

Detailed Description

Clips a volume with the depth map projection of a shape.

This class is an helper class derived from SoUniformGridClipping. It defines its clipping texture by the depth map of the given sceneGraph in the given axis orientation.

Notes:

Rendering the sceneGraph on top of the clipped volume might result in z-fighting artefacts due to depth precision. In order to avoid this issue it is necessary to use a SoPolygonOffset node before the geometry to render.

sceneGraph should not contain any draggers or manipulators because they will become part of the clipping texture and might lead to unwanted results. As a workaround, you can put draggers outside of sceneGraph, put an SoTransform inside your sceneGraph and connect it to your dragger.

If sceneGraph contains holes, you should set the minFilter and magFilter fields to NEAREST to avoid interpolation issues between holes and the true surface.

The inherited field SoUniformGridClipping::undefinedValue is set to the default depth (i.e. 1).

See SoUniformGridClipping for detailed behavior and limitations.

NOTE: node available since Open Inventor 8.6

FILE FORMAT/DEFAULT

sceneGraph	NULL
axis	Y
extent	-1,0,-1 1,1,1
filename	""
image	0 0 0
wrapS	CLAMP_TO_EDGE
wrapT	CLAMP_TO_EDGE
model	MODULATE
enableCompressedTexture	FALSE
blendColor	0 0 0
enableBorder	FALSE
borderColor	0 0 0 0
maxAnisotropy	1.0
minFilter	AUTO
magFilter	AUTO
loadingMode	AUTO
useAutoMipmap	FALSE
internalFormat	AUTO_INTERNAL_FORMAT
thickness	0
clipBelow	FALSE
clipAbove	TRUE