SoGeometryShader Class Reference
[Properties]
Node that defines a geometry shader.
More...
#include <Inventor/nodes/SoGeometryShader.h>
Public Member Functions | |
| virtual SoType | getTypeId () const |
| SoGeometryShader () | |
| virtual ShaderType | getShaderType () const |
Static Public Member Functions | |
| static SoType | getClassTypeId () |
| static SbBool | isSupported (SoShaderObject::SourceType sourceType, SoState *state=NULL) |
Detailed Description
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,
- See related examples:
-
GPUGeometry, InterleavedVertexAttribFeedback, SimpleVertexAttribFeedback, VertexAttribFeedback, SimplePassthrough
Constructor & Destructor Documentation
| SoGeometryShader::SoGeometryShader | ( | ) |
Constructor.
Member Function Documentation
| static SoType SoGeometryShader::getClassTypeId | ( | ) | [static] |
Returns the type identifier for this class.
Reimplemented from SoShaderObject.
| virtual ShaderType SoGeometryShader::getShaderType | ( | ) | const [inline, virtual] |
Returns the shader type.
Implements SoShaderObject.
| virtual SoType SoGeometryShader::getTypeId | ( | ) | const [virtual] |
Returns the type identifier for this specific instance.
Reimplemented from SoShaderObject.
| static SbBool SoGeometryShader::isSupported | ( | SoShaderObject::SourceType | sourceType, | |
| SoState * | state = NULL | |||
| ) | [static] |
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.
The documentation for this class was generated from the following file:
- Inventor/nodes/SoGeometryShader.h