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StencilRefNode.cc
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40 \*===========================================================================*/
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44 * $Revision$ *
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48 \*===========================================================================*/
49
50
51
52
53 //=============================================================================
54 //
55 // CLASS StencilRefNode - IMPLEMENTATION
56 //
57 //=============================================================================
58
59
60 //== INCLUDES =================================================================
61
62
63 #include "StencilRefNode.hh"
64
65
66 //== NAMESPACES ===============================================================
67
68
69 namespace ACG {
70 namespace SceneGraph {
71
72
73 //== IMPLEMENTATION ==========================================================
74
75
76 StencilRefNode::StencilRefNode (BaseNode* _parent,
77 const std::string& _name)
78 : BaseNode(_parent, _name),
79 reference_ (0)
80 {}
81
82 //----------------------------------------------------------------------------
83
84 StencilRefNode::StencilRefNode (BaseNode* _parent,
85 BaseNode* _child,
86 const std::string& _name)
87 : BaseNode(_parent, _child, _name),
88 reference_ (0)
89 {}
90
91 //----------------------------------------------------------------------------
92
93 void StencilRefNode::enter(GLState& /*_state*/, const DrawModes::DrawMode& /*_drawmode*/)
94 {
95 if(visible()) {
96 glPushAttrib (GL_STENCIL_BUFFER_BIT);
97 glStencilFunc (GL_ALWAYS, reference_, ~0);
98 glStencilOp (GL_KEEP, GL_KEEP, GL_REPLACE);
99 }
100 }
101
102 //----------------------------------------------------------------------------
103
104 void StencilRefNode::leave(GLState& /*_state*/, const DrawModes::DrawMode& /*_drawmode*/)
105 {
106 if(visible()) {
107 glPopAttrib ();
108 }
109 }
110
111 //----------------------------------------------------------------------------
112
113 void StencilRefNode::enterPick(GLState& /*_state*/ , PickTarget /*_target*/, const DrawModes::DrawMode& /*_drawMode*/ ) {
114
115 }
116
117 //----------------------------------------------------------------------------
118
119 void StencilRefNode::leavePick(GLState& /*_state*/, PickTarget /*_target*/, const DrawModes::DrawMode& /*_drawMode*/ ) {
120 }
121
122 void StencilRefNode::setReference(GLuint _ref)
123 {
124 reference_ = _ref;
125 }
126
127 //=============================================================================
128 } // namespace SceneGraph
129 } // namespace ACG
130 //=============================================================================
131
ACG::SceneGraph::StencilRefNode::enterPick
void enterPick(GLState &_state, PickTarget _target, const DrawModes::DrawMode &_drawMode)
Do nothing in picking.
Definition: StencilRefNode.cc:113
ACG
Namespace providing different geometric functions concerning angles.
Definition: DBSCANT.cc:51
ACG::SceneGraph::BaseNode
Definition: BaseNode.hh:135
ACG::SceneGraph::StencilRefNode::leavePick
void leavePick(GLState &_state, PickTarget _target, const DrawModes::DrawMode &_drawMode)
Do nothing in picking.
Definition: StencilRefNode.cc:119
ACG::SceneGraph::PickTarget
PickTarget
What target to use for picking.
Definition: BaseNode.hh:99
ACG::SceneGraph::ACG::SceneGraph::BaseNode::visible
bool visible()
Is node visible (status == Active)?
Definition: MeshNode2T.cc:385
ACG::GLState
Definition: GLState.hh:220
ACG::SceneGraph::DrawModes::DrawMode
Specifies a DrawMode.
Definition: DrawModes.hh:294
ACG::SceneGraph::StencilRefNode::setReference
void setReference(GLuint _ref)
set stencil reference number
Definition: StencilRefNode.cc:122
ACG::SceneGraph::StencilRefNode::enter
void enter(GLState &_state, const DrawModes::DrawMode &_drawmode)
set stencil reference for all z-pass pixels
Definition: StencilRefNode.cc:93
ACG::SceneGraph::StencilRefNode::StencilRefNode
StencilRefNode(BaseNode *_parent=0, const std::string &_name="<StencilRefNode>")
Default constructor.
Definition: StencilRefNode.cc:76
ACG::SceneGraph::StencilRefNode::leave
void leave(GLState &_state, const DrawModes::DrawMode &_drawmode)
restores original stencil behavior
Definition: StencilRefNode.cc:104