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1 // 1 //
2 // ******************************************* 2 // ********************************************************************
3 // * License and Disclaimer 3 // * License and Disclaimer *
4 // * 4 // * *
5 // * The Geant4 software is copyright of th 5 // * The Geant4 software is copyright of the Copyright Holders of *
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10 // * 10 // * *
11 // * Neither the authors of this software syst 11 // * Neither the authors of this software system, nor their employing *
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17 // * 17 // * *
18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its *
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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // 26 //
27 // 27 //
28 // 28 //
29 // Andrew Walkden 10th February 1997 29 // Andrew Walkden 10th February 1997
30 // OpenGL immediate scene - draws immediately 30 // OpenGL immediate scene - draws immediately to buffer
31 // (saving space on 31 // (saving space on server).
32 32
>> 33 #ifdef G4VIS_BUILD_OPENGL_DRIVER
>> 34
33 #include "G4OpenGLImmediateSceneHandler.hh" 35 #include "G4OpenGLImmediateSceneHandler.hh"
34 36
35 #include "G4OpenGLViewer.hh" 37 #include "G4OpenGLViewer.hh"
36 #include "G4OpenGLTransform3D.hh" 38 #include "G4OpenGLTransform3D.hh"
37 #include "G4Polyline.hh" 39 #include "G4Polyline.hh"
38 #include "G4Polymarker.hh" 40 #include "G4Polymarker.hh"
39 #include "G4Text.hh" 41 #include "G4Text.hh"
40 #include "G4Circle.hh" 42 #include "G4Circle.hh"
41 #include "G4Square.hh" 43 #include "G4Square.hh"
>> 44 #include "G4Scale.hh"
42 #include "G4Polyhedron.hh" 45 #include "G4Polyhedron.hh"
43 #include "G4AttHolder.hh" 46 #include "G4AttHolder.hh"
44 47
45 #include <typeinfo> 48 #include <typeinfo>
46 49
47 G4OpenGLImmediateSceneHandler::G4OpenGLImmedia 50 G4OpenGLImmediateSceneHandler::G4OpenGLImmediateSceneHandler
48 (G4VGraphicsSystem& system,const G4String& nam 51 (G4VGraphicsSystem& system,const G4String& name):
49 G4OpenGLSceneHandler (system, fSceneIdCount+ 52 G4OpenGLSceneHandler (system, fSceneIdCount++, name)
50 {} 53 {}
51 54
52 G4OpenGLImmediateSceneHandler::~G4OpenGLImmedi 55 G4OpenGLImmediateSceneHandler::~G4OpenGLImmediateSceneHandler ()
53 {} 56 {}
54 57
55 #include <iomanip> 58 #include <iomanip>
56 59
57 G4bool G4OpenGLImmediateSceneHandler::AddPrimi 60 G4bool G4OpenGLImmediateSceneHandler::AddPrimitivePreamble(const G4VMarker& visible)
58 { 61 {
59 return AddPrimitivePreambleInternal(visibl 62 return AddPrimitivePreambleInternal(visible, true, false);
60 } 63 }
61 G4bool G4OpenGLImmediateSceneHandler::AddPrimi 64 G4bool G4OpenGLImmediateSceneHandler::AddPrimitivePreamble(const G4Polyline& visible)
62 { 65 {
63 return AddPrimitivePreambleInternal(visible, 66 return AddPrimitivePreambleInternal(visible, false, true);
64 } 67 }
65 G4bool G4OpenGLImmediateSceneHandler::AddPrimi 68 G4bool G4OpenGLImmediateSceneHandler::AddPrimitivePreamble(const G4Polyhedron& visible)
66 { 69 {
67 return AddPrimitivePreambleInternal(visible, 70 return AddPrimitivePreambleInternal(visible, false, false);
68 } 71 }
69 72
70 G4bool G4OpenGLImmediateSceneHandler::AddPrimi 73 G4bool G4OpenGLImmediateSceneHandler::AddPrimitivePreambleInternal(const G4Visible& visible, bool isMarker, bool isPolyline)
71 { 74 {
72 // Get applicable vis attributes for all pri 75 // Get applicable vis attributes for all primitives.
73 fpVisAttribs = fpViewer->GetApplicableVisAtt 76 fpVisAttribs = fpViewer->GetApplicableVisAttributes(visible.GetVisAttributes());
74 const G4Colour& c = GetColour (); 77 const G4Colour& c = GetColour ();
75 G4double opacity = c.GetAlpha (); 78 G4double opacity = c.GetAlpha ();
76 79
77 G4bool transparency_enabled = true; 80 G4bool transparency_enabled = true;
78 G4bool isMarkerNotHidden = true; 81 G4bool isMarkerNotHidden = true;
79 G4OpenGLViewer* pViewer = dynamic_cast<G4Ope 82 G4OpenGLViewer* pViewer = dynamic_cast<G4OpenGLViewer*>(fpViewer);
80 if (pViewer) { 83 if (pViewer) {
81 transparency_enabled = pViewer->transparen 84 transparency_enabled = pViewer->transparency_enabled;
82 isMarkerNotHidden = pViewer->fVP.IsMarkerN 85 isMarkerNotHidden = pViewer->fVP.IsMarkerNotHidden();
83 } 86 }
84 87
85 G4bool isMarkerOrPolyline = isMarker || isPo 88 G4bool isMarkerOrPolyline = isMarker || isPolyline;
86 G4bool treatAsTransparent = transparency_ena 89 G4bool treatAsTransparent = transparency_enabled && opacity < 1.;
87 G4bool treatAsNotHidden = isMarkerNotHidden 90 G4bool treatAsNotHidden = isMarkerNotHidden && (isMarker || isPolyline);
88 91
89 if (fProcessing2D) glDisable (GL_DEPTH_TEST) 92 if (fProcessing2D) glDisable (GL_DEPTH_TEST);
90 else { 93 else {
91 if (isMarkerOrPolyline && isMarkerNotHidde 94 if (isMarkerOrPolyline && isMarkerNotHidden)
92 glDisable (GL_DEPTH_TEST); 95 glDisable (GL_DEPTH_TEST);
93 else {glEnable (GL_DEPTH_TEST); glDepthFun 96 else {glEnable (GL_DEPTH_TEST); glDepthFunc (GL_LEQUAL);}
94 } 97 }
95 98
96 if (fThreePassCapable) { 99 if (fThreePassCapable) {
97 100
98 // Ensure transparent objects are drawn op 101 // Ensure transparent objects are drawn opaque ones and before
99 // non-hidden markers. The problem of ble 102 // non-hidden markers. The problem of blending/transparency/alpha
100 // is quite a tricky one - see History of 103 // is quite a tricky one - see History of opengl-V07-01-01/2/3.
101 if (!(fSecondPassForTransparency || fThird 104 if (!(fSecondPassForTransparency || fThirdPassForNonHiddenMarkers)) {
102 // First pass... 105 // First pass...
103 if (treatAsTransparent) { // Request pa 106 if (treatAsTransparent) { // Request pass for transparent objects...
104 fSecondPassForTransparencyRequested = 107 fSecondPassForTransparencyRequested = true;
105 } 108 }
106 if (treatAsNotHidden) { // Request pa 109 if (treatAsNotHidden) { // Request pass for non-hidden markers...
107 fThirdPassForNonHiddenMarkersRequested 110 fThirdPassForNonHiddenMarkersRequested = true;
108 } 111 }
109 // On first pass, transparent objects an 112 // On first pass, transparent objects and non-hidden markers are not drawn...
110 if (treatAsTransparent || treatAsNotHidd 113 if (treatAsTransparent || treatAsNotHidden) {
111 return false; 114 return false;
112 } 115 }
113 } 116 }
114 117
115 // On second pass, only transparent object 118 // On second pass, only transparent objects are drawn...
116 if (fSecondPassForTransparency) { 119 if (fSecondPassForTransparency) {
117 if (!treatAsTransparent) { 120 if (!treatAsTransparent) {
118 return false; 121 return false;
119 } 122 }
120 } 123 }
121 124
122 // On third pass, only non-hidden markers 125 // On third pass, only non-hidden markers are drawn...
123 if (fThirdPassForNonHiddenMarkers) { 126 if (fThirdPassForNonHiddenMarkers) {
124 if (!treatAsNotHidden) { 127 if (!treatAsNotHidden) {
125 return false; 128 return false;
126 } 129 }
127 } 130 }
128 } // fThreePassCapable 131 } // fThreePassCapable
129 132
130 // Loads G4Atts for picking... 133 // Loads G4Atts for picking...
131 if (fpViewer->GetViewParameters().IsPicking( 134 if (fpViewer->GetViewParameters().IsPicking()) {
132 glLoadName(++fPickName); 135 glLoadName(++fPickName);
133 G4AttHolder* holder = new G4AttHolder; 136 G4AttHolder* holder = new G4AttHolder;
134 LoadAtts(visible, holder); 137 LoadAtts(visible, holder);
135 fPickMap[fPickName] = holder; 138 fPickMap[fPickName] = holder;
136 } 139 }
137 140
138 if (transparency_enabled) { 141 if (transparency_enabled) {
139 glColor4d(c.GetRed(),c.GetGreen(),c.GetBlu 142 glColor4d(c.GetRed(),c.GetGreen(),c.GetBlue(),c.GetAlpha());
140 } else { 143 } else {
141 glColor3d(c.GetRed(),c.GetGreen(),c.GetBlu 144 glColor3d(c.GetRed(),c.GetGreen(),c.GetBlue());
142 } 145 }
143 146
144 return true; 147 return true;
145 } 148 }
146 149
147 void G4OpenGLImmediateSceneHandler::AddPrimiti 150 void G4OpenGLImmediateSceneHandler::AddPrimitive (const G4Polyline& polyline)
148 { 151 {
149 G4bool furtherprocessing = AddPrimitivePream 152 G4bool furtherprocessing = AddPrimitivePreamble(polyline);
150 if (furtherprocessing) { 153 if (furtherprocessing) {
151 G4OpenGLSceneHandler::AddPrimitive(polylin 154 G4OpenGLSceneHandler::AddPrimitive(polyline);
152 } 155 }
153 } 156 }
154 157
155 void G4OpenGLImmediateSceneHandler::AddPrimiti 158 void G4OpenGLImmediateSceneHandler::AddPrimitive (const G4Polymarker& polymarker)
156 { 159 {
157 G4bool furtherprocessing = AddPrimitivePream 160 G4bool furtherprocessing = AddPrimitivePreamble(polymarker);
158 if (furtherprocessing) { 161 if (furtherprocessing) {
159 G4OpenGLSceneHandler::AddPrimitive(polymar 162 G4OpenGLSceneHandler::AddPrimitive(polymarker);
160 } 163 }
161 } 164 }
162 165
163 void G4OpenGLImmediateSceneHandler::AddPrimiti 166 void G4OpenGLImmediateSceneHandler::AddPrimitive (const G4Text& text)
164 { 167 {
165 // Note: colour is still handled in 168 // Note: colour is still handled in
166 // G4OpenGLSceneHandler::AddPrimitive(const 169 // G4OpenGLSceneHandler::AddPrimitive(const G4Text&).
167 G4bool furtherprocessing = AddPrimitivePream 170 G4bool furtherprocessing = AddPrimitivePreamble(text);
168 if (furtherprocessing) { 171 if (furtherprocessing) {
169 G4OpenGLSceneHandler::AddPrimitive(text); 172 G4OpenGLSceneHandler::AddPrimitive(text);
170 } 173 }
171 } 174 }
172 175
173 void G4OpenGLImmediateSceneHandler::AddPrimiti 176 void G4OpenGLImmediateSceneHandler::AddPrimitive (const G4Circle& circle)
174 { 177 {
175 G4bool furtherprocessing = AddPrimitivePream 178 G4bool furtherprocessing = AddPrimitivePreamble(circle);
176 if (furtherprocessing) { 179 if (furtherprocessing) {
177 G4OpenGLSceneHandler::AddPrimitive(circle) 180 G4OpenGLSceneHandler::AddPrimitive(circle);
178 } 181 }
179 } 182 }
180 183
181 void G4OpenGLImmediateSceneHandler::AddPrimiti 184 void G4OpenGLImmediateSceneHandler::AddPrimitive (const G4Square& square)
182 { 185 {
183 G4bool furtherprocessing = AddPrimitivePream 186 G4bool furtherprocessing = AddPrimitivePreamble(square);
184 if (furtherprocessing) { 187 if (furtherprocessing) {
185 G4OpenGLSceneHandler::AddPrimitive(square) 188 G4OpenGLSceneHandler::AddPrimitive(square);
186 } 189 }
187 } 190 }
188 191
>> 192 void G4OpenGLImmediateSceneHandler::AddPrimitive (const G4Scale& scale)
>> 193 {
>> 194 G4bool furtherprocessing = AddPrimitivePreamble(scale);
>> 195 if (furtherprocessing) {
>> 196 G4OpenGLSceneHandler::AddPrimitive(scale);
>> 197 }
>> 198 }
>> 199
189 void G4OpenGLImmediateSceneHandler::AddPrimiti 200 void G4OpenGLImmediateSceneHandler::AddPrimitive (const G4Polyhedron& polyhedron)
190 { 201 {
191 // Note: colour is still handled in 202 // Note: colour is still handled in
192 // G4OpenGLSceneHandler::AddPrimitive(const 203 // G4OpenGLSceneHandler::AddPrimitive(const G4Polyhedron&).
193 G4bool furtherprocessing = AddPrimitivePream 204 G4bool furtherprocessing = AddPrimitivePreamble(polyhedron);
194 if (furtherprocessing) { 205 if (furtherprocessing) {
195 G4OpenGLSceneHandler::AddPrimitive(polyhed 206 G4OpenGLSceneHandler::AddPrimitive(polyhedron);
196 } 207 }
197 } 208 }
198 209
199 void G4OpenGLImmediateSceneHandler::BeginPrimi 210 void G4OpenGLImmediateSceneHandler::BeginPrimitives
200 (const G4Transform3D& objectTransformation) 211 (const G4Transform3D& objectTransformation)
201 { 212 {
202 G4OpenGLSceneHandler::BeginPrimitives (objec 213 G4OpenGLSceneHandler::BeginPrimitives (objectTransformation);
203 214
204 G4OpenGLTransform3D oglt (objectTransformati 215 G4OpenGLTransform3D oglt (objectTransformation);
205 216
206 glPushMatrix(); 217 glPushMatrix();
207 218
208 /*************************** Check matrix. 219 /*************************** Check matrix.
209 const GLdouble* m = oglt.GetGLMatrix (); 220 const GLdouble* m = oglt.GetGLMatrix ();
210 G4cout << "G4OpenGLTransform3D matrix:"; 221 G4cout << "G4OpenGLTransform3D matrix:";
211 for (int i = 0; i < 16; i++) { 222 for (int i = 0; i < 16; i++) {
212 if ((i % 4) == 0) G4cout << '\n'; 223 if ((i % 4) == 0) G4cout << '\n';
213 G4cout << std::setw (15) << m[i]; 224 G4cout << std::setw (15) << m[i];
214 } 225 }
215 G4cout << G4endl; 226 G4cout << G4endl;
216 *****************************************/ 227 *****************************************/
217 228
218 glMultMatrixd (oglt.GetGLMatrix ()); 229 glMultMatrixd (oglt.GetGLMatrix ());
219 } 230 }
220 231
221 void G4OpenGLImmediateSceneHandler::EndPrimiti 232 void G4OpenGLImmediateSceneHandler::EndPrimitives ()
222 { 233 {
223 glPopMatrix(); 234 glPopMatrix();
224 235
225 // See all primitives immediately... At lea 236 // See all primitives immediately... At least soon...
226 ScaledFlush(); 237 ScaledFlush();
227 238
228 G4OpenGLSceneHandler::EndPrimitives (); 239 G4OpenGLSceneHandler::EndPrimitives ();
229 } 240 }
230 241
231 void G4OpenGLImmediateSceneHandler::BeginPrimi 242 void G4OpenGLImmediateSceneHandler::BeginPrimitives2D
232 (const G4Transform3D& objectTransformation) 243 (const G4Transform3D& objectTransformation)
233 { 244 {
234 G4OpenGLSceneHandler::BeginPrimitives2D(obje 245 G4OpenGLSceneHandler::BeginPrimitives2D(objectTransformation);
235 246
236 // Push current 3D world matrices and load i 247 // Push current 3D world matrices and load identity to define screen
237 // coordinates... 248 // coordinates...
238 glMatrixMode (GL_PROJECTION); 249 glMatrixMode (GL_PROJECTION);
239 glPushMatrix(); 250 glPushMatrix();
240 glLoadIdentity(); 251 glLoadIdentity();
241 G4OpenGLViewer* pViewer = dynamic_cast<G4Ope 252 G4OpenGLViewer* pViewer = dynamic_cast<G4OpenGLViewer*>(fpViewer);
242 if (pViewer) { 253 if (pViewer) {
243 pViewer->g4GlOrtho (-1., 1., -1., 1., -G4O 254 pViewer->g4GlOrtho (-1., 1., -1., 1., -G4OPENGL_FLT_BIG, G4OPENGL_FLT_BIG);
244 } 255 }
245 glMatrixMode (GL_MODELVIEW); 256 glMatrixMode (GL_MODELVIEW);
246 glPushMatrix(); 257 glPushMatrix();
247 glLoadIdentity(); 258 glLoadIdentity();
248 G4OpenGLTransform3D oglt (objectTransformati 259 G4OpenGLTransform3D oglt (objectTransformation);
249 glMultMatrixd (oglt.GetGLMatrix ()); 260 glMultMatrixd (oglt.GetGLMatrix ());
250 glDisable(GL_DEPTH_TEST); // But see parent 261 glDisable(GL_DEPTH_TEST); // But see parent scene handler!! In
>> 262 #ifndef G4OPENGL_VERSION_2
251 glDisable (GL_LIGHTING); // some cases, we 263 glDisable (GL_LIGHTING); // some cases, we need to re-iterate this.
>> 264 #endif
252 } 265 }
253 266
254 void G4OpenGLImmediateSceneHandler::EndPrimiti 267 void G4OpenGLImmediateSceneHandler::EndPrimitives2D()
255 { 268 {
256 // Pop current 3D world matrices back again. 269 // Pop current 3D world matrices back again...
257 glMatrixMode (GL_PROJECTION); 270 glMatrixMode (GL_PROJECTION);
258 glPopMatrix(); 271 glPopMatrix();
259 glMatrixMode (GL_MODELVIEW); 272 glMatrixMode (GL_MODELVIEW);
260 glPopMatrix(); 273 glPopMatrix();
261 274
262 // See all primitives immediately... At lea 275 // See all primitives immediately... At least soon...
263 ScaledFlush(); 276 ScaledFlush();
264 277
265 G4OpenGLSceneHandler::EndPrimitives2D (); 278 G4OpenGLSceneHandler::EndPrimitives2D ();
266 } 279 }
267 280
268 void G4OpenGLImmediateSceneHandler::BeginModel 281 void G4OpenGLImmediateSceneHandler::BeginModeling () {
269 G4VSceneHandler::BeginModeling(); 282 G4VSceneHandler::BeginModeling();
270 } 283 }
271 284
272 void G4OpenGLImmediateSceneHandler::EndModelin 285 void G4OpenGLImmediateSceneHandler::EndModeling () {
273 G4VSceneHandler::EndModeling (); 286 G4VSceneHandler::EndModeling ();
274 } 287 }
275 288
276 void G4OpenGLImmediateSceneHandler::ClearTrans 289 void G4OpenGLImmediateSceneHandler::ClearTransientStore ()
277 { 290 {
278 // Nothing to do except redraw the scene rea 291 // Nothing to do except redraw the scene ready for the next event.
279 if (fpViewer) { 292 if (fpViewer) {
280 fpViewer -> SetView (); 293 fpViewer -> SetView ();
281 fpViewer -> ClearView (); 294 fpViewer -> ClearView ();
282 fpViewer -> DrawView (); 295 fpViewer -> DrawView ();
283 } 296 }
284 } 297 }
285 298
286 G4int G4OpenGLImmediateSceneHandler::fSceneIdC 299 G4int G4OpenGLImmediateSceneHandler::fSceneIdCount = 0;
>> 300
>> 301 #endif
287 302