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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 *
6 // * the Geant4 Collaboration. It is provided 6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License 7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/ 8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. 9 // * include a list of copyright holders. *
10 // * 10 // * *
11 // * Neither the authors of this software syst 11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing fin 12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warran 13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assum 14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file 15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. *
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 *
22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. *
24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // 26 //
>> 27 // $Id$
27 // 28 //
28 // 29 //
29 // Andrew Walkden 10th February 1997 30 // Andrew Walkden 10th February 1997
30 // OpenGL immediate scene - draws immediately 31 // OpenGL immediate scene - draws immediately to buffer
31 // (saving space on 32 // (saving space on server).
32 33
>> 34 #ifdef G4VIS_BUILD_OPENGL_DRIVER
>> 35
33 #include "G4OpenGLImmediateSceneHandler.hh" 36 #include "G4OpenGLImmediateSceneHandler.hh"
34 37
35 #include "G4OpenGLViewer.hh" 38 #include "G4OpenGLViewer.hh"
36 #include "G4OpenGLTransform3D.hh" 39 #include "G4OpenGLTransform3D.hh"
37 #include "G4Polyline.hh" 40 #include "G4Polyline.hh"
38 #include "G4Polymarker.hh" 41 #include "G4Polymarker.hh"
39 #include "G4Text.hh" 42 #include "G4Text.hh"
40 #include "G4Circle.hh" 43 #include "G4Circle.hh"
41 #include "G4Square.hh" 44 #include "G4Square.hh"
>> 45 #include "G4Scale.hh"
42 #include "G4Polyhedron.hh" 46 #include "G4Polyhedron.hh"
43 #include "G4AttHolder.hh" 47 #include "G4AttHolder.hh"
44 48
45 #include <typeinfo> 49 #include <typeinfo>
46 50
47 G4OpenGLImmediateSceneHandler::G4OpenGLImmedia 51 G4OpenGLImmediateSceneHandler::G4OpenGLImmediateSceneHandler
48 (G4VGraphicsSystem& system,const G4String& nam 52 (G4VGraphicsSystem& system,const G4String& name):
49 G4OpenGLSceneHandler (system, fSceneIdCount+ 53 G4OpenGLSceneHandler (system, fSceneIdCount++, name)
50 {} 54 {}
51 55
52 G4OpenGLImmediateSceneHandler::~G4OpenGLImmedi 56 G4OpenGLImmediateSceneHandler::~G4OpenGLImmediateSceneHandler ()
53 {} 57 {}
54 58
55 #include <iomanip> 59 #include <iomanip>
56 60
57 G4bool G4OpenGLImmediateSceneHandler::AddPrimi 61 G4bool G4OpenGLImmediateSceneHandler::AddPrimitivePreamble(const G4VMarker& visible)
58 { 62 {
59 return AddPrimitivePreambleInternal(visibl 63 return AddPrimitivePreambleInternal(visible, true, false);
60 } 64 }
61 G4bool G4OpenGLImmediateSceneHandler::AddPrimi 65 G4bool G4OpenGLImmediateSceneHandler::AddPrimitivePreamble(const G4Polyline& visible)
62 { 66 {
63 return AddPrimitivePreambleInternal(visible, 67 return AddPrimitivePreambleInternal(visible, false, true);
64 } 68 }
65 G4bool G4OpenGLImmediateSceneHandler::AddPrimi 69 G4bool G4OpenGLImmediateSceneHandler::AddPrimitivePreamble(const G4Polyhedron& visible)
66 { 70 {
67 return AddPrimitivePreambleInternal(visible, 71 return AddPrimitivePreambleInternal(visible, false, false);
68 } 72 }
69 73
70 G4bool G4OpenGLImmediateSceneHandler::AddPrimi 74 G4bool G4OpenGLImmediateSceneHandler::AddPrimitivePreambleInternal(const G4Visible& visible, bool isMarker, bool isPolyline)
71 { 75 {
72 // Get applicable vis attributes for all pri 76 // Get applicable vis attributes for all primitives.
73 fpVisAttribs = fpViewer->GetApplicableVisAtt 77 fpVisAttribs = fpViewer->GetApplicableVisAttributes(visible.GetVisAttributes());
74 const G4Colour& c = GetColour (); 78 const G4Colour& c = GetColour ();
75 G4double opacity = c.GetAlpha (); 79 G4double opacity = c.GetAlpha ();
76 80
77 G4bool transparency_enabled = true; 81 G4bool transparency_enabled = true;
78 G4bool isMarkerNotHidden = true; 82 G4bool isMarkerNotHidden = true;
79 G4OpenGLViewer* pViewer = dynamic_cast<G4Ope 83 G4OpenGLViewer* pViewer = dynamic_cast<G4OpenGLViewer*>(fpViewer);
80 if (pViewer) { 84 if (pViewer) {
81 transparency_enabled = pViewer->transparen 85 transparency_enabled = pViewer->transparency_enabled;
82 isMarkerNotHidden = pViewer->fVP.IsMarkerN 86 isMarkerNotHidden = pViewer->fVP.IsMarkerNotHidden();
83 } 87 }
84 88
85 G4bool isMarkerOrPolyline = isMarker || isPo 89 G4bool isMarkerOrPolyline = isMarker || isPolyline;
86 G4bool treatAsTransparent = transparency_ena 90 G4bool treatAsTransparent = transparency_enabled && opacity < 1.;
87 G4bool treatAsNotHidden = isMarkerNotHidden 91 G4bool treatAsNotHidden = isMarkerNotHidden && (isMarker || isPolyline);
88 92
89 if (fProcessing2D) glDisable (GL_DEPTH_TEST) 93 if (fProcessing2D) glDisable (GL_DEPTH_TEST);
90 else { 94 else {
91 if (isMarkerOrPolyline && isMarkerNotHidde 95 if (isMarkerOrPolyline && isMarkerNotHidden)
92 glDisable (GL_DEPTH_TEST); 96 glDisable (GL_DEPTH_TEST);
93 else {glEnable (GL_DEPTH_TEST); glDepthFun 97 else {glEnable (GL_DEPTH_TEST); glDepthFunc (GL_LEQUAL);}
94 } 98 }
95 99
96 if (fThreePassCapable) { 100 if (fThreePassCapable) {
97 101
98 // Ensure transparent objects are drawn op 102 // Ensure transparent objects are drawn opaque ones and before
99 // non-hidden markers. The problem of ble 103 // non-hidden markers. The problem of blending/transparency/alpha
100 // is quite a tricky one - see History of 104 // is quite a tricky one - see History of opengl-V07-01-01/2/3.
101 if (!(fSecondPassForTransparency || fThird 105 if (!(fSecondPassForTransparency || fThirdPassForNonHiddenMarkers)) {
102 // First pass... 106 // First pass...
103 if (treatAsTransparent) { // Request pa 107 if (treatAsTransparent) { // Request pass for transparent objects...
104 fSecondPassForTransparencyRequested = 108 fSecondPassForTransparencyRequested = true;
105 } 109 }
106 if (treatAsNotHidden) { // Request pa 110 if (treatAsNotHidden) { // Request pass for non-hidden markers...
107 fThirdPassForNonHiddenMarkersRequested 111 fThirdPassForNonHiddenMarkersRequested = true;
108 } 112 }
109 // On first pass, transparent objects an 113 // On first pass, transparent objects and non-hidden markers are not drawn...
110 if (treatAsTransparent || treatAsNotHidd 114 if (treatAsTransparent || treatAsNotHidden) {
111 return false; 115 return false;
112 } 116 }
113 } 117 }
114 118
115 // On second pass, only transparent object 119 // On second pass, only transparent objects are drawn...
116 if (fSecondPassForTransparency) { 120 if (fSecondPassForTransparency) {
117 if (!treatAsTransparent) { 121 if (!treatAsTransparent) {
118 return false; 122 return false;
119 } 123 }
120 } 124 }
121 125
122 // On third pass, only non-hidden markers 126 // On third pass, only non-hidden markers are drawn...
123 if (fThirdPassForNonHiddenMarkers) { 127 if (fThirdPassForNonHiddenMarkers) {
124 if (!treatAsNotHidden) { 128 if (!treatAsNotHidden) {
125 return false; 129 return false;
126 } 130 }
127 } 131 }
128 } // fThreePassCapable 132 } // fThreePassCapable
129 133
130 // Loads G4Atts for picking... 134 // Loads G4Atts for picking...
131 if (fpViewer->GetViewParameters().IsPicking( 135 if (fpViewer->GetViewParameters().IsPicking()) {
132 glLoadName(++fPickName); 136 glLoadName(++fPickName);
133 G4AttHolder* holder = new G4AttHolder; 137 G4AttHolder* holder = new G4AttHolder;
134 LoadAtts(visible, holder); 138 LoadAtts(visible, holder);
135 fPickMap[fPickName] = holder; 139 fPickMap[fPickName] = holder;
136 } 140 }
137 141
138 if (transparency_enabled) { 142 if (transparency_enabled) {
139 glColor4d(c.GetRed(),c.GetGreen(),c.GetBlu 143 glColor4d(c.GetRed(),c.GetGreen(),c.GetBlue(),c.GetAlpha());
140 } else { 144 } else {
141 glColor3d(c.GetRed(),c.GetGreen(),c.GetBlu 145 glColor3d(c.GetRed(),c.GetGreen(),c.GetBlue());
142 } 146 }
143 147
144 return true; 148 return true;
145 } 149 }
146 150
147 void G4OpenGLImmediateSceneHandler::AddPrimiti 151 void G4OpenGLImmediateSceneHandler::AddPrimitive (const G4Polyline& polyline)
148 { 152 {
149 G4bool furtherprocessing = AddPrimitivePream 153 G4bool furtherprocessing = AddPrimitivePreamble(polyline);
150 if (furtherprocessing) { 154 if (furtherprocessing) {
151 G4OpenGLSceneHandler::AddPrimitive(polylin 155 G4OpenGLSceneHandler::AddPrimitive(polyline);
152 } 156 }
153 } 157 }
154 158
155 void G4OpenGLImmediateSceneHandler::AddPrimiti 159 void G4OpenGLImmediateSceneHandler::AddPrimitive (const G4Polymarker& polymarker)
156 { 160 {
157 G4bool furtherprocessing = AddPrimitivePream 161 G4bool furtherprocessing = AddPrimitivePreamble(polymarker);
158 if (furtherprocessing) { 162 if (furtherprocessing) {
159 G4OpenGLSceneHandler::AddPrimitive(polymar 163 G4OpenGLSceneHandler::AddPrimitive(polymarker);
160 } 164 }
161 } 165 }
162 166
163 void G4OpenGLImmediateSceneHandler::AddPrimiti 167 void G4OpenGLImmediateSceneHandler::AddPrimitive (const G4Text& text)
164 { 168 {
165 // Note: colour is still handled in 169 // Note: colour is still handled in
166 // G4OpenGLSceneHandler::AddPrimitive(const 170 // G4OpenGLSceneHandler::AddPrimitive(const G4Text&).
167 G4bool furtherprocessing = AddPrimitivePream 171 G4bool furtherprocessing = AddPrimitivePreamble(text);
168 if (furtherprocessing) { 172 if (furtherprocessing) {
169 G4OpenGLSceneHandler::AddPrimitive(text); 173 G4OpenGLSceneHandler::AddPrimitive(text);
170 } 174 }
171 } 175 }
172 176
173 void G4OpenGLImmediateSceneHandler::AddPrimiti 177 void G4OpenGLImmediateSceneHandler::AddPrimitive (const G4Circle& circle)
174 { 178 {
175 G4bool furtherprocessing = AddPrimitivePream 179 G4bool furtherprocessing = AddPrimitivePreamble(circle);
176 if (furtherprocessing) { 180 if (furtherprocessing) {
177 G4OpenGLSceneHandler::AddPrimitive(circle) 181 G4OpenGLSceneHandler::AddPrimitive(circle);
178 } 182 }
179 } 183 }
180 184
181 void G4OpenGLImmediateSceneHandler::AddPrimiti 185 void G4OpenGLImmediateSceneHandler::AddPrimitive (const G4Square& square)
182 { 186 {
183 G4bool furtherprocessing = AddPrimitivePream 187 G4bool furtherprocessing = AddPrimitivePreamble(square);
184 if (furtherprocessing) { 188 if (furtherprocessing) {
185 G4OpenGLSceneHandler::AddPrimitive(square) 189 G4OpenGLSceneHandler::AddPrimitive(square);
186 } 190 }
187 } 191 }
188 192
>> 193 void G4OpenGLImmediateSceneHandler::AddPrimitive (const G4Scale& scale)
>> 194 {
>> 195 G4bool furtherprocessing = AddPrimitivePreamble(scale);
>> 196 if (furtherprocessing) {
>> 197 G4OpenGLSceneHandler::AddPrimitive(scale);
>> 198 }
>> 199 }
>> 200
189 void G4OpenGLImmediateSceneHandler::AddPrimiti 201 void G4OpenGLImmediateSceneHandler::AddPrimitive (const G4Polyhedron& polyhedron)
190 { 202 {
191 // Note: colour is still handled in 203 // Note: colour is still handled in
192 // G4OpenGLSceneHandler::AddPrimitive(const 204 // G4OpenGLSceneHandler::AddPrimitive(const G4Polyhedron&).
193 G4bool furtherprocessing = AddPrimitivePream 205 G4bool furtherprocessing = AddPrimitivePreamble(polyhedron);
194 if (furtherprocessing) { 206 if (furtherprocessing) {
195 G4OpenGLSceneHandler::AddPrimitive(polyhed 207 G4OpenGLSceneHandler::AddPrimitive(polyhedron);
196 } 208 }
197 } 209 }
198 210
199 void G4OpenGLImmediateSceneHandler::BeginPrimi 211 void G4OpenGLImmediateSceneHandler::BeginPrimitives
200 (const G4Transform3D& objectTransformation) 212 (const G4Transform3D& objectTransformation)
201 { 213 {
202 G4OpenGLSceneHandler::BeginPrimitives (objec 214 G4OpenGLSceneHandler::BeginPrimitives (objectTransformation);
203 215
204 G4OpenGLTransform3D oglt (objectTransformati 216 G4OpenGLTransform3D oglt (objectTransformation);
205 217
206 glPushMatrix(); 218 glPushMatrix();
207 219
208 /*************************** Check matrix. 220 /*************************** Check matrix.
209 const GLdouble* m = oglt.GetGLMatrix (); 221 const GLdouble* m = oglt.GetGLMatrix ();
210 G4cout << "G4OpenGLTransform3D matrix:"; 222 G4cout << "G4OpenGLTransform3D matrix:";
211 for (int i = 0; i < 16; i++) { 223 for (int i = 0; i < 16; i++) {
212 if ((i % 4) == 0) G4cout << '\n'; 224 if ((i % 4) == 0) G4cout << '\n';
213 G4cout << std::setw (15) << m[i]; 225 G4cout << std::setw (15) << m[i];
214 } 226 }
215 G4cout << G4endl; 227 G4cout << G4endl;
216 *****************************************/ 228 *****************************************/
217 229
218 glMultMatrixd (oglt.GetGLMatrix ()); 230 glMultMatrixd (oglt.GetGLMatrix ());
219 } 231 }
220 232
221 void G4OpenGLImmediateSceneHandler::EndPrimiti 233 void G4OpenGLImmediateSceneHandler::EndPrimitives ()
222 { 234 {
223 glPopMatrix(); 235 glPopMatrix();
224 236
225 // See all primitives immediately... At lea 237 // See all primitives immediately... At least soon...
226 ScaledFlush(); 238 ScaledFlush();
227 239
228 G4OpenGLSceneHandler::EndPrimitives (); 240 G4OpenGLSceneHandler::EndPrimitives ();
229 } 241 }
230 242
231 void G4OpenGLImmediateSceneHandler::BeginPrimi 243 void G4OpenGLImmediateSceneHandler::BeginPrimitives2D
232 (const G4Transform3D& objectTransformation) 244 (const G4Transform3D& objectTransformation)
233 { 245 {
234 G4OpenGLSceneHandler::BeginPrimitives2D(obje 246 G4OpenGLSceneHandler::BeginPrimitives2D(objectTransformation);
235 247
236 // Push current 3D world matrices and load i 248 // Push current 3D world matrices and load identity to define screen
237 // coordinates... 249 // coordinates...
238 glMatrixMode (GL_PROJECTION); 250 glMatrixMode (GL_PROJECTION);
239 glPushMatrix(); 251 glPushMatrix();
240 glLoadIdentity(); 252 glLoadIdentity();
241 G4OpenGLViewer* pViewer = dynamic_cast<G4Ope 253 G4OpenGLViewer* pViewer = dynamic_cast<G4OpenGLViewer*>(fpViewer);
242 if (pViewer) { 254 if (pViewer) {
243 pViewer->g4GlOrtho (-1., 1., -1., 1., -G4O 255 pViewer->g4GlOrtho (-1., 1., -1., 1., -G4OPENGL_FLT_BIG, G4OPENGL_FLT_BIG);
244 } 256 }
245 glMatrixMode (GL_MODELVIEW); 257 glMatrixMode (GL_MODELVIEW);
246 glPushMatrix(); 258 glPushMatrix();
247 glLoadIdentity(); 259 glLoadIdentity();
248 G4OpenGLTransform3D oglt (objectTransformati 260 G4OpenGLTransform3D oglt (objectTransformation);
249 glMultMatrixd (oglt.GetGLMatrix ()); 261 glMultMatrixd (oglt.GetGLMatrix ());
250 glDisable(GL_DEPTH_TEST); // But see parent 262 glDisable(GL_DEPTH_TEST); // But see parent scene handler!! In
>> 263 #ifndef G4OPENGL_VERSION_2
251 glDisable (GL_LIGHTING); // some cases, we 264 glDisable (GL_LIGHTING); // some cases, we need to re-iterate this.
>> 265 #endif
252 } 266 }
253 267
254 void G4OpenGLImmediateSceneHandler::EndPrimiti 268 void G4OpenGLImmediateSceneHandler::EndPrimitives2D()
255 { 269 {
256 // Pop current 3D world matrices back again. 270 // Pop current 3D world matrices back again...
257 glMatrixMode (GL_PROJECTION); 271 glMatrixMode (GL_PROJECTION);
258 glPopMatrix(); 272 glPopMatrix();
259 glMatrixMode (GL_MODELVIEW); 273 glMatrixMode (GL_MODELVIEW);
260 glPopMatrix(); 274 glPopMatrix();
261 275
262 // See all primitives immediately... At lea 276 // See all primitives immediately... At least soon...
263 ScaledFlush(); 277 ScaledFlush();
264 278
265 G4OpenGLSceneHandler::EndPrimitives2D (); 279 G4OpenGLSceneHandler::EndPrimitives2D ();
266 } 280 }
267 281
268 void G4OpenGLImmediateSceneHandler::BeginModel 282 void G4OpenGLImmediateSceneHandler::BeginModeling () {
269 G4VSceneHandler::BeginModeling(); 283 G4VSceneHandler::BeginModeling();
270 } 284 }
271 285
272 void G4OpenGLImmediateSceneHandler::EndModelin 286 void G4OpenGLImmediateSceneHandler::EndModeling () {
273 G4VSceneHandler::EndModeling (); 287 G4VSceneHandler::EndModeling ();
274 } 288 }
275 289
276 void G4OpenGLImmediateSceneHandler::ClearTrans 290 void G4OpenGLImmediateSceneHandler::ClearTransientStore ()
277 { 291 {
278 // Nothing to do except redraw the scene rea 292 // Nothing to do except redraw the scene ready for the next event.
279 if (fpViewer) { 293 if (fpViewer) {
280 fpViewer -> SetView (); 294 fpViewer -> SetView ();
281 fpViewer -> ClearView (); 295 fpViewer -> ClearView ();
282 fpViewer -> DrawView (); 296 fpViewer -> DrawView ();
283 } 297 }
284 } 298 }
285 299
286 G4int G4OpenGLImmediateSceneHandler::fSceneIdC 300 G4int G4OpenGLImmediateSceneHandler::fSceneIdCount = 0;
>> 301
>> 302 #endif
287 303