SoVertexShader Class Reference
[Shaders]
Node that defines a vertex shader.
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#include <Inventor/nodes/SoVertexShader.h>
Public Member Functions | |
| virtual SoType | getTypeId () const |
| SoVertexShader () | |
| 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 vertex shader.
This node defines a vertex 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.
- Predefined GLSL variables.
Open Inventor uses a compatibility profile context for rendering. So legacy GLSL predefined variables, for example gl_ModelViewMatrix, can be used in vertex shaders. However, if you use the GLSL "#version" directive in a shader, you should append the keyword "compatibility", for example: "#version 150 compatibility".
- Shadows.
To integrate with Open Inventor's shadow casting algorithm, vertex shaders should call the GLSL method OivSetupShadowVertex(). Please see SoShadowGroup for example code.
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.
FILE FORMAT/DEFAULT
- VertexShader {
| sourceProgram | "" |
| sourceType | FILENAME |
| isActive | TRUE |
| parameter | NULL |
SEE ALSO
SoFragmentShader, SoGeometryShader, SoShaderObject, SoShaderProgram, SoTessellationControlShader, SoTessellationEvaluationShader, SoUniformShaderParameter, SoVertexShaderParameter
- See related examples:
-
GPUGeometry, InterleavedVertexAttribFeedback, SimpleVertexAttribFeedback, VertexAttribFeedback, AnimatedFlag, GeometryShader, PixelLighting, shadowShader, SimplePassthrough, ToonShading, ShadersBrowser
Constructor & Destructor Documentation
| SoVertexShader::SoVertexShader | ( | ) |
Constructor.
Member Function Documentation
| static SoType SoVertexShader::getClassTypeId | ( | ) | [static] |
Returns the type identifier for this class.
Reimplemented from SoShaderObject.
| virtual ShaderType SoVertexShader::getShaderType | ( | ) | const [inline, virtual] |
Returns the shader type.
Implements SoShaderObject.
| virtual SoType SoVertexShader::getTypeId | ( | ) | const [virtual] |
Returns the type identifier for this specific instance.
Reimplemented from SoShaderObject.
| static SbBool SoVertexShader::isSupported | ( | SoShaderObject::SourceType | sourceType, | |
| SoState * | state = NULL | |||
| ) | [static] |
Indicates if vertex 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/SoVertexShader.h