cgFx/cgfxVector.h

#ifndef _cgfxVector_h_
#define _cgfxVector_h_
//
// Copyright (C) 2002 NVIDIA 
// 
// File: cgfxVector.h
//
// Dependency Graph Node: cgfxVector
//
// Description:
//  The cgfxVector node is used to convert a vector in the scene to
//  world coordinates.  The inputs are a vector in local coordinates,
//  a flag indicating whether the vector is a position or a direction,
//  and a matrix that will transoform the vector to world coordinates.
//  This matrix is generally the worldInverseMatrix of the vector.
//
// Author: Jim Atkinson
//
//-
// ==========================================================================
// Copyright 1995,2006,2008 Autodesk, Inc. All rights reserved.
//
// Use of this software is subject to the terms of the Autodesk
// license agreement provided at the time of installation or download,
// or which otherwise accompanies this software in either electronic
// or hard copy form.
// ==========================================================================
//+
#include "cgfxShaderCommon.h"

#include <maya/MPxNode.h>
#include <maya/MFnNumericAttribute.h>
#include <maya/MTypeId.h> 

class cgfxVector : public MPxNode
{
public:
                        cgfxVector();
    virtual             ~cgfxVector(); 

    virtual MStatus     compute( const MPlug& plug, MDataBlock& data );

    // Create the node ...
    //
    static  void*       creator();

    // ... and initialize it.
    //
    static  MStatus     initialize();

public:

    // The typeid is a unique 32bit indentifier that describes this node.
    // It is used to save and retrieve nodes of this type from the binary
    // file format.  If it is not unique, it will cause file IO problems.
    //
    static  MTypeId sId;

    // There needs to be a MObject handle declared for each attribute that
    // the node will have.  These handles are needed for getting and setting
    // the values later.
    //
    // Input vector attribute
    //
    static  MObject sVector;

    static  MObject sVectorX;
    static  MObject sVectorY;
    static  MObject sVectorZ;

    // Input position/direction flag.  If isDirection is set then
    // the vector represents a direction and the W coordinate is
    // 0.0.  If it is not set then W is 1.0.
    //
    static  MObject sIsDirection;

    // Input matrix attribute
    //
    static  MObject sMatrix;

    // Output world coordinate vector attribute
    //
    static  MObject sWorldVector;
    static  MObject sWorldVectorX;
    static  MObject sWorldVectorY;
    static  MObject sWorldVectorZ;
    static  MObject sWorldVectorW;
};

#endif /* _cgfxVector_h_ */