Package com.openinventor.inventor.nodes

Class SoGeometryShader

java.lang.Object

com.openinventor.inventor.Inventor

com.openinventor.inventor.misc.SoBase

com.openinventor.inventor.fields.SoFieldContainer

com.openinventor.inventor.nodes.SoNode

com.openinventor.inventor.nodes.SoShaderObject

com.openinventor.inventor.nodes.SoGeometryShader

All Implemented Interfaces:

SafeDisposable

public class SoGeometryShader
extends SoShaderObject

Node that defines a geometry shader. This node defines a geometry shader.

See SoShaderProgram for general information about using shaders and shader parameters.

See parent class SoShaderObject for details about using the inherited fields.

Notes:

• Shader object nodes cannot be inserted directly in a scene graph.
  They must be added to the shaderObject field of an SoShaderProgram node.
• Since Open Inventor 10.0, when writing geometry shaders, the input and output primitive types must be specified in the shader code. See https://developer.openinventor.com/index.php/general-documentation/how-to-write-shaders-with-oiv-10/#geomshader for more information.

Limitations:

• Transparency and fast editing are compatible with shader modified geometry, but most actions use the vertices of the basic shape (the vertices stored in the scene graph). This includes, for example, SoGetBoundingBoxAction, SoGetPrimitiveCountAction and SoRayPickAction.
• The input primitive type must match the primitive type used with the rendering command that renders with this shader program. Valid inputs are points, lines and triangles so shapes like SoCube, SoIndexedFaceSet defines with quads or polygons, SoQuadMesh are not compatible with SoGeometryShader.

File format/default:

GeometryShader {

sourceProgram	""
sourceType	FILENAME
isActive	true
parameter	NULL

}

See Also:

• SoFragmentShader
• SoVertexShader
• SoShaderObject
• SoShaderProgram
• SoTessellationControlShader
• SoTessellationEvaluationShader
• SoUniformShaderParameter

Nested Class Summary

Nested classes/interfaces inherited from class com.openinventor.inventor.nodes.SoShaderObject

SoShaderObject.ShaderTypes, SoShaderObject.SourceTypes

Nested classes/interfaces inherited from class com.openinventor.inventor.nodes.SoNode

SoNode.RenderModes

Nested classes/interfaces inherited from class com.openinventor.inventor.Inventor

Inventor.ConstructorCommand

Field Summary

Fields inherited from class com.openinventor.inventor.nodes.SoShaderObject

isActive, parameter, sourceProgram, sourceType

Fields inherited from class com.openinventor.inventor.Inventor

VERBOSE_LEVEL, ZeroHandle

Constructor Summary

Constructors

Constructor	Description
SoGeometryShader()	Constructor.

Method Summary

Modifier and Type	Method	Description
static boolean	isSupported(SoShaderObject.SourceTypes sourceType)	Calls isSupported(sourceType, (com.openinventor.inventor.misc.SoState)null).
static boolean	isSupported(SoShaderObject.SourceTypes sourceType, SoState state)	Indicates if geometry shaders in the specified language are supported by your graphics board.

Methods inherited from class com.openinventor.inventor.nodes.SoShaderObject

getShaderType

Methods inherited from class com.openinventor.inventor.nodes.SoNode

affectsState, callback, copy, copy, distribute, doAction, getAlternateRep, getBoundingBox, getByName, getMatrix, getPrimitiveCount, getRenderEngineMode, getRenderUnitID, GLRender, GLRenderBelowPath, GLRenderInPath, GLRenderOffPath, grabEventsCleanup, grabEventsSetup, handleEvent, isBoundingBoxIgnoring, isOverride, pick, rayPick, search, setOverride, touch, write

Methods inherited from class com.openinventor.inventor.fields.SoFieldContainer

copyFieldValues, copyFieldValues, enableNotify, fieldsAreEqual, get, getAllFields, getEventIn, getEventOut, getField, getFieldName, hasDefaultValues, isNotifyEnabled, set, setToDefaults

Methods inherited from class com.openinventor.inventor.misc.SoBase

dispose, getName, isDisposable, isSynchronizable, setName, setSynchronizable

Methods inherited from class com.openinventor.inventor.Inventor

getNativeResourceHandle

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SoGeometryShader

public SoGeometryShader()

Constructor.

Method Details

isSupported

public static boolean isSupported(SoShaderObject.SourceTypes sourceType)

Calls isSupported(sourceType, (com.openinventor.inventor.misc.SoState)null).

isSupported

public static boolean isSupported(SoShaderObject.SourceTypes sourceType,
 SoState state)

Indicates if geometry shaders in the specified language are supported by your graphics board. When using a debug build of Open Inventor, some "no context available" warning messages may be generated. You can ignore them or see SoGLExtension for an example of using SoGLContext to avoid them.