Package com.openinventor.inventor.nodes

Class SoVertexShader

  • All Implemented Interfaces:
    SafeDisposable
    public class SoVertexShader
extends SoShaderObject
    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:

    File format/default:

    VertexShader {

      sourceProgram ""
      sourceType FILENAME
      isActive true
      parameter NULL
    }

    See Also:
    SoFragmentShader, SoGeometryShader, SoShaderObject, SoShaderProgram, SoTessellationControlShader, SoTessellationEvaluationShader, SoUniformShaderParameter, SoVertexShaderParameter

    • Constructor Detail

      • SoVertexShader

        public SoVertexShader()
        Constructor.

    • Method Detail

      • 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 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.