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32
33 /*!
34 \class SoBumpMapCoordinate SoBumpMapCoordinate.h Inventor/nodes/SoBumpMapCoordinate.h
35 \brief The SoBumpMapCoordinate class is a node for providing bump map coordinates to shape nodes.
36
37 \ingroup nodes
38
39 When encountering nodes of this type during traversal, the
40 coordinates it contains will be put on the state stack for later use
41 by shape nodes. The bump map coordinates can be used to specify
42 explicit coordinates for a bump map. The SoBumpMap node is used to
43 specify a bump map for the shape nodes.
44
45 Note that an SoBumpMapCoordinate node will \e replace the bump map
46 coordinates already present in the state (if any).
47
48 Also note that since the indexed shape nodes have no
49 bumpMapCoordIndex field, the textureCoordIndex field will be used
50 for selecting bump map coordinate indices. You can set the bump map
51 coordinate binding using the SoTextureCoordinateBinding node. Bump
52 map coordinates must therefore have the same binding as the texture
53 coordinates for texture unit 0.
54
55 If you supply no bump map coordinates for a shape, the texture
56 coordinates for texture unit 0 will be used.
57
58 <b>FILE FORMAT/DEFAULTS:</b>
59 \code
60 BumpMapCoordinate {
61 point [ ]
62 }
63 \endcode
64
65 \since Coin 2.2
66 */
67
68 #include <Inventor/nodes/SoBumpMapCoordinate.h>
69
70 #include <Inventor/actions/SoGLRenderAction.h>
71 #include <Inventor/actions/SoCallbackAction.h>
72 #include <Inventor/actions/SoRayPickAction.h>
73 #include <Inventor/elements/SoBumpMapCoordinateElement.h>
74
75 #include "nodes/SoSubNodeP.h"
76
77 /*!
78 \var SoMFVec3f SoBumpMapCoordinate::point
79 Set of 2D points. Contains no points by default.
80 */
81
82
83 // *************************************************************************
84
85 SO_NODE_SOURCE(SoBumpMapCoordinate);
86
87 /*!
88 Constructor.
89 */
SoBumpMapCoordinate(void)90 SoBumpMapCoordinate::SoBumpMapCoordinate(void)
91 {
92 SO_NODE_INTERNAL_CONSTRUCTOR(SoBumpMapCoordinate);
93
94 SO_NODE_ADD_FIELD(point, (0.0f, 0.0f));
95 this->point.setNum(0);
96 this->point.setDefault(TRUE);
97 }
98
99 /*!
100 Destructor.
101 */
~SoBumpMapCoordinate()102 SoBumpMapCoordinate::~SoBumpMapCoordinate()
103 {
104 }
105
106 // Doc from superclass.
107 void
initClass(void)108 SoBumpMapCoordinate::initClass(void)
109 {
110 SO_NODE_INTERNAL_INIT_CLASS(SoBumpMapCoordinate, SO_FROM_COIN_2_2);
111
112 SO_ENABLE(SoGLRenderAction, SoBumpMapCoordinateElement);
113 SO_ENABLE(SoCallbackAction, SoBumpMapCoordinateElement);
114 SO_ENABLE(SoPickAction, SoBumpMapCoordinateElement);
115 }
116
117 // Doc from superclass.
118 void
doAction(SoAction * action)119 SoBumpMapCoordinate::doAction(SoAction * action)
120 {
121 SoBumpMapCoordinateElement::set(action->getState(), this,
122 point.getNum(), point.getValues(0));
123 }
124
125 // Doc from superclass.
126 void
GLRender(SoGLRenderAction * action)127 SoBumpMapCoordinate::GLRender(SoGLRenderAction * action)
128 {
129 SoBumpMapCoordinateElement::set(action->getState(), this,
130 point.getNum(), point.getValues(0));
131 }
132
133 // Doc from superclass.
134 void
callback(SoCallbackAction * action)135 SoBumpMapCoordinate::callback(SoCallbackAction * action)
136 {
137 SoBumpMapCoordinate::doAction((SoAction*)action);
138 }
139
140 // Doc from superclass.
141 void
pick(SoPickAction * action)142 SoBumpMapCoordinate::pick(SoPickAction * action)
143 {
144 SoBumpMapCoordinate::doAction((SoAction*) action);
145 }
146