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Comparing libgender/view.C (file contents):
Revision 1.25 by root, Wed Oct 6 09:40:50 2004 UTC vs.
Revision 1.36 by root, Sat Oct 9 02:08:29 2004 UTC

1#include <cmath> 1#include <cmath>
2
3#include <GL/gl.h>
4#include <GL/glext.h>
2 5
3#include "oct.h" 6#include "oct.h"
4#include "view.h" 7#include "view.h"
5 8
9 static GLenum gl_error;
6view::view () 10view::view ()
7: gamma(1.0) 11: gamma(1.0)
8{ 12{
9} 13}
10 14
11view::~view () 15view::~view ()
12{ 16{
13} 17}
14 18
15bool view::may_draw (entity_base *e) 19bool view::may_draw (const entity *e)
16{ 20{
17 if (drawn.find (e) != drawn.end ()) 21 if (drawn.find (e) != drawn.end ())
18 return false; 22 return false;
19 23
20 drawn.insert (e); 24 drawn.insert (e);
… …
28 glViewport (0, 0, w, h); 32 glViewport (0, 0, w, h);
29 33
30 glMatrixMode (GL_PROJECTION); 34 glMatrixMode (GL_PROJECTION);
31 glLoadIdentity (); 35 glLoadIdentity ();
32 36
37 gl_error = glGetError ();
33 GLdouble aspect = (GLdouble)w/h; 38 GLdouble aspect = (GLdouble)w/h;
34 GLdouble zNear = 0.1; 39 GLdouble zNear = 1.;
35 GLdouble zFar = 50.; 40 GLdouble zFar = 500.;
36 41
42 gl_error = glGetError ();
37 GLdouble ymax = zNear * tan (fov * (M_PI / 360.0)); 43 GLdouble ymax = zNear * tan (fov * (M_PI / 360.0));
38 glFrustum (-ymax * aspect, ymax * aspect, -ymax, ymax, zNear, zFar); 44 glFrustum (-ymax * aspect, ymax * aspect, -ymax, ymax, zNear, zFar);
39 45
46 gl_error = glGetError ();
40 d = normalize (d);//D 47 d = normalize (d);//D
41 u = normalize (u);//D 48 u = normalize (u);//D
42 vec3 rz = -d; 49 vec3 rz = -d;
43 vec3 rx = cross (u, rz); 50 vec3 rx = cross (u, rz);
44 vec3 ry = cross (rz, rx); 51 vec3 ry = cross (rz, rx);
52 gl_error = glGetError ();
45 53
46 matrix &m = projection; 54 matrix &m = projection;
47 m(0,0) = rx.x; m(0,1) = rx.y; m(0,2) = rx.z; m(0,3) = 0; 55 m(0,0) = rx.x; m(0,1) = rx.y; m(0,2) = rx.z; m(0,3) = 0;
48 m(1,0) = ry.x; m(1,1) = ry.y; m(1,2) = ry.z; m(1,3) = 0; 56 m(1,0) = ry.x; m(1,1) = ry.y; m(1,2) = ry.z; m(1,3) = 0;
49 m(2,0) = rz.x; m(2,1) = rz.y; m(2,2) = rz.z; m(2,3) = 0; 57 m(2,0) = rz.x; m(2,1) = rz.y; m(2,2) = rz.z; m(2,3) = 0;
50 m(3,0) = 0; m(3,1) = 0; m(3,2) = 0; m(3,3) = 1; 58 m(3,0) = 0; m(3,1) = 0; m(3,2) = 0; m(3,3) = 1;
59 gl_error = glGetError ();
51 60
52 glMultMatrixf ((GLfloat *)m.data); 61 glMultMatrixf ((GLfloat *)m.data);
53 62
63 gl_error = glGetError ();
54 glGetFloatv (GL_PROJECTION_MATRIX, (GLfloat *)&m); 64 glGetFloatv (GL_PROJECTION_MATRIX, (GLfloat *)&m);
55 65
66 gl_error = glGetError ();
56 frustum.l = plane ( m(3,0) + m(0,0), m(3,1) + m(0,1), m(3,2) + m(0,2), m(3,3) + m(0,3) ); 67 frustum.l = plane ( m(3,0) + m(0,0), m(3,1) + m(0,1), m(3,2) + m(0,2), m(3,3) + m(0,3) );
57 frustum.r = plane ( m(3,0) - m(0,0), m(3,1) - m(0,1), m(3,2) - m(0,2), m(3,3) - m(0,3) ); 68 frustum.r = plane ( m(3,0) - m(0,0), m(3,1) - m(0,1), m(3,2) - m(0,2), m(3,3) - m(0,3) );
58 frustum.b = plane ( m(3,0) + m(1,0), m(3,1) + m(1,1), m(3,2) + m(1,2), m(3,3) + m(1,3) ); 69 frustum.b = plane ( m(3,0) + m(1,0), m(3,1) + m(1,1), m(3,2) + m(1,2), m(3,3) + m(1,3) );
59 frustum.t = plane ( m(3,0) - m(1,0), m(3,1) - m(1,1), m(3,2) - m(1,2), m(3,3) - m(1,3) ); 70 frustum.t = plane ( m(3,0) - m(1,0), m(3,1) - m(1,1), m(3,2) - m(1,2), m(3,3) - m(1,3) );
60 frustum.n = plane ( m(3,0) + m(2,0), m(3,1) + m(2,1), m(3,2) + m(2,2), m(3,3) + m(2,3) ); 71 frustum.n = plane ( m(3,0) + m(2,0), m(3,1) + m(2,1), m(3,2) + m(2,2), m(3,3) + m(2,3) );
61 frustum.f = plane ( m(3,0) - m(2,0), m(3,1) - m(2,1), m(3,2) - m(2,2), m(3,3) - m(2,3) ); 72 frustum.f = plane ( m(3,0) - m(2,0), m(3,1) - m(2,1), m(3,2) - m(2,2), m(3,3) - m(2,3) );
62 73
74 gl_error = glGetError ();
63 glMatrixMode (GL_MODELVIEW); 75 glMatrixMode (GL_MODELVIEW);
64 glLoadIdentity (); 76 glLoadIdentity ();
65 glTranslatef (-p.x, -p.y, -p.z); 77 glTranslatef (-p.x, -p.y, -p.z);
78 gl_error = glGetError ();
66} 79}
67 80
68void view::begin () 81void view::begin ()
69{ 82{
83 glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
84 glDepthRange (0, 1. - (1. / pow (2., 16.)));
85
70 vismap.clear (); 86 vismap.clear ();
71 vislist.clear (); 87 vislist.clear ();
72 88
73 generation++; 89 generation++;
74 90
75 reset_projection (); 91 reset_projection ();
92
93 for (vector<octant *>::iterator i = farlist.begin (); i != farlist.end (); ++i)
94 ;
95
96 farlist.clear ();
76 97
77 // check occlusion queries here 98 // check occlusion queries here
78#if 0 99#if 0
79 for (vector<octant *>::iterator i = checklist.begin (); i != checklist.end (); ++i) 100 for (vector<octant *>::iterator i = checklist.begin (); i != checklist.end (); ++i)
80 //printf ("%p %d\n", *i, occ_query_result ((*i)->occ_query)); 101 //printf ("%p %d\n", *i, occ_query_result ((*i)->occ_query));
… …
121 for (vector<octant *>::iterator i = vislist.begin (); i != vislist.end (); ++i) 142 for (vector<octant *>::iterator i = vislist.begin (); i != vislist.end (); ++i)
122 (*i)->display (*this); 143 (*i)->display (*this);
123 144
124 drawn.clear (); 145 drawn.clear ();
125 146
126 if (mode == view::DEPTH) 147 if (mode == view::DEPTH || 1)
127 { 148 {
149 glEnable (GL_DEPTH_CLAMP_NV);
150 glDepthFunc (GL_LESS);
151 if (1) glDepthFunc (GL_LEQUAL);
152 glEnable (GL_COLOR_MATERIAL);
153 glDisable (GL_LIGHTING);
154 cgGLDisableProfile (vsh_profile);
155 cgGLDisableProfile (fsh_profile);
156 glShadeModel (GL_FLAT);
157
158#if 0
128 static int count; count++; 159 static int count; count++;
129 if (farlist.size ()) 160 if (farlist.size ())
130 printf ("%d: size %d\n", count, farlist.size ()); 161 printf ("%d: size %d\n", count, farlist.size ());
162#endif
131 163
132 glDepthFunc (GL_LEQUAL);
133 for (vector<octant *>::iterator i = farlist.begin (); i != farlist.end (); ++i) 164 for (vector<octant *>::iterator i = farlist.begin (); i != farlist.end (); ++i)
165 {
166 glColor3f (1,0,0);
134 (*i)->draw_bbox (*this); 167 (*i)->draw_bbox (*this);
168 }
135 169
136 farlist.clear (); 170 glEnable (GL_DEPTH_TEST);
171 glDisable (GL_DEPTH_CLAMP_NV);
172 glShadeModel (GL_SMOOTH);
137 } 173 }
138 174
139 glColorMask (1, 1, 1, 0); 175 glColorMask (1, 1, 1, 0);
140 glDepthMask (1); 176 glDepthMask (1);
177
141} 178}
142 179
143 180

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