xglLoadIdentity();
// set up our view volume (default)
- gluLookAt(v->view_pos.x, v->view_pos.y, v->view_pos.z,
+ fg_gluLookAt(v->view_pos.x, v->view_pos.y, v->view_pos.z,
v->view_pos.x + v->view_forward[0],
v->view_pos.y + v->view_forward[1],
v->view_pos.z + v->view_forward[2],
v->view_up[0], v->view_up[1], v->view_up[2]);
// look almost straight up (testing and eclipse watching)
- /* gluLookAt(v->view_pos.x, v->view_pos.y, v->view_pos.z,
+ /* fg_gluLookAt(v->view_pos.x, v->view_pos.y, v->view_pos.z,
v->view_pos.x + v->view_up[0] + .001,
v->view_pos.y + v->view_up[1] + .001,
v->view_pos.z + v->view_up[2] + .001,
v->view_up[0], v->view_up[1], v->view_up[2]); */
// lock view horizontally towards sun (testing)
- /* gluLookAt(v->view_pos.x, v->view_pos.y, v->view_pos.z,
+ /* fg_gluLookAt(v->view_pos.x, v->view_pos.y, v->view_pos.z,
v->view_pos.x + v->surface_to_sun[0],
v->view_pos.y + v->surface_to_sun[1],
v->view_pos.z + v->surface_to_sun[2],
v->view_up[0], v->view_up[1], v->view_up[2]); */
// lock view horizontally towards south (testing)
- /* gluLookAt(v->view_pos.x, v->view_pos.y, v->view_pos.z,
+ /* fg_gluLookAt(v->view_pos.x, v->view_pos.y, v->view_pos.z,
v->view_pos.x + v->surface_south[0],
v->view_pos.y + v->surface_south[1],
v->view_pos.z + v->surface_south[2],
// $Log$
+// Revision 1.29 1998/07/04 00:52:22 curt
+// Add my own version of gluLookAt() (which is nearly identical to the
+// Mesa/glu version.) But, by calculating the Model View matrix our selves
+// we can save this matrix without having to read it back in from the video
+// card. This hopefully allows us to save a few cpu cycles when rendering
+// out the fragments because we can just use glLoadMatrixd() with the
+// precalculated matrix for each tile rather than doing a push(), translate(),
+// pop() for every fragment.
+//
+// Panel status defaults to off for now until it gets a bit more developed.
+//
+// Extract OpenGL driver info on initialization.
+//
// Revision 1.28 1998/06/27 16:54:32 curt
// Replaced "extern displayInstruments" with a entry in fgOPTIONS.
// Don't change the view port when displaying the panel.
fgPrintf( FG_GENERAL, FG_INFO, "General Initialization\n" );
fgPrintf( FG_GENERAL, FG_INFO, "======= ==============\n" );
+ g->glVendor = glGetString ( GL_VENDOR );
+ g->glRenderer = glGetString ( GL_RENDERER );
+ g->glVersion = glGetString ( GL_VERSION );
+
if ( !strlen(o->fg_root) ) {
// No root path set? Then assume, we will exit if this is
// wrong when looking for support files.
// $Log$
+// Revision 1.22 1998/07/04 00:52:25 curt
+// Add my own version of gluLookAt() (which is nearly identical to the
+// Mesa/glu version.) But, by calculating the Model View matrix our selves
+// we can save this matrix without having to read it back in from the video
+// card. This hopefully allows us to save a few cpu cycles when rendering
+// out the fragments because we can just use glLoadMatrixd() with the
+// precalculated matrix for each tile rather than doing a push(), translate(),
+// pop() for every fragment.
+//
+// Panel status defaults to off for now until it gets a bit more developed.
+//
+// Extract OpenGL driver info on initialization.
+//
// Revision 1.21 1998/06/27 16:54:33 curt
// Replaced "extern displayInstruments" with a entry in fgOPTIONS.
// Don't change the view port when displaying the panel.
// Features
hud_status = 1;
- panel_status = 1;
+ panel_status = 0;
// Rendering options
fog = 2; // nicest
// $Log$
+// Revision 1.14 1998/07/04 00:52:26 curt
+// Add my own version of gluLookAt() (which is nearly identical to the
+// Mesa/glu version.) But, by calculating the Model View matrix our selves
+// we can save this matrix without having to read it back in from the video
+// card. This hopefully allows us to save a few cpu cycles when rendering
+// out the fragments because we can just use glLoadMatrixd() with the
+// precalculated matrix for each tile rather than doing a push(), translate(),
+// pop() for every fragment.
+//
+// Panel status defaults to off for now until it gets a bit more developed.
+//
+// Extract OpenGL driver info on initialization.
+//
// Revision 1.13 1998/06/27 16:54:34 curt
// Replaced "extern displayInstruments" with a entry in fgOPTIONS.
// Don't change the view port when displaying the panel.
}
+// Basically, this is a modified version of the Mesa gluLookAt()
+// function that's been modified slightly so we can capture the result
+// before sending it off to OpenGL land.
+void fg_gluLookAt( GLdouble eyex, GLdouble eyey, GLdouble eyez,
+ GLdouble centerx, GLdouble centery, GLdouble centerz,
+ GLdouble upx, GLdouble upy, GLdouble upz )
+{
+ GLdouble *m;
+ GLdouble x[3], y[3], z[3];
+ GLdouble mag;
+
+ m = current_view.MODEL_VIEW;
+
+ /* Make rotation matrix */
+
+ /* Z vector */
+ z[0] = eyex - centerx;
+ z[1] = eyey - centery;
+ z[2] = eyez - centerz;
+ mag = sqrt( z[0]*z[0] + z[1]*z[1] + z[2]*z[2] );
+ if (mag) { /* mpichler, 19950515 */
+ z[0] /= mag;
+ z[1] /= mag;
+ z[2] /= mag;
+ }
+
+ /* Y vector */
+ y[0] = upx;
+ y[1] = upy;
+ y[2] = upz;
+
+ /* X vector = Y cross Z */
+ x[0] = y[1]*z[2] - y[2]*z[1];
+ x[1] = -y[0]*z[2] + y[2]*z[0];
+ x[2] = y[0]*z[1] - y[1]*z[0];
+
+ /* Recompute Y = Z cross X */
+ y[0] = z[1]*x[2] - z[2]*x[1];
+ y[1] = -z[0]*x[2] + z[2]*x[0];
+ y[2] = z[0]*x[1] - z[1]*x[0];
+
+ /* mpichler, 19950515 */
+ /* cross product gives area of parallelogram, which is < 1.0 for
+ * non-perpendicular unit-length vectors; so normalize x, y here
+ */
+
+ mag = sqrt( x[0]*x[0] + x[1]*x[1] + x[2]*x[2] );
+ if (mag) {
+ x[0] /= mag;
+ x[1] /= mag;
+ x[2] /= mag;
+ }
+
+ mag = sqrt( y[0]*y[0] + y[1]*y[1] + y[2]*y[2] );
+ if (mag) {
+ y[0] /= mag;
+ y[1] /= mag;
+ y[2] /= mag;
+ }
+
+#define M(row,col) m[col*4+row]
+ M(0,0) = x[0]; M(0,1) = x[1]; M(0,2) = x[2]; M(0,3) = 0.0;
+ M(1,0) = y[0]; M(1,1) = y[1]; M(1,2) = y[2]; M(1,3) = 0.0;
+ M(2,0) = z[0]; M(2,1) = z[1]; M(2,2) = z[2]; M(2,3) = 0.0;
+ M(3,0) = 0.0; M(3,1) = 0.0; M(3,2) = 0.0; M(3,3) = 1.0;
+#undef M
+
+ // Translate Eye to Origin
+ // replaces: glTranslated( -eyex, -eyey, -eyez );
+ m[12] = m[0] * -eyex + m[4] * -eyey + m[8] * -eyez + m[12];
+ m[13] = m[1] * -eyex + m[5] * -eyey + m[9] * -eyez + m[13];
+ m[14] = m[2] * -eyex + m[6] * -eyey + m[10] * -eyez + m[14];
+ m[15] = m[3] * -eyex + m[7] * -eyey + m[11] * -eyez + m[15];
+
+ // xglMultMatrixd( m );
+ xglLoadMatrixd( m );
+}
+
+
// $Log$
+// Revision 1.13 1998/07/04 00:52:27 curt
+// Add my own version of gluLookAt() (which is nearly identical to the
+// Mesa/glu version.) But, by calculating the Model View matrix our selves
+// we can save this matrix without having to read it back in from the video
+// card. This hopefully allows us to save a few cpu cycles when rendering
+// out the fragments because we can just use glLoadMatrixd() with the
+// precalculated matrix for each tile rather than doing a push(), translate(),
+// pop() for every fragment.
+//
+// Panel status defaults to off for now until it gets a bit more developed.
+//
+// Extract OpenGL driver info on initialization.
+//
// Revision 1.12 1998/06/03 00:47:15 curt
// Updated to compile in audio support if OSS available.
// Updated for new version of Steve's audio library.
// coordinates to eye coordinates
MAT3mat WORLD_TO_EYE;
+ // Current model view matrix;
+ GLdouble MODEL_VIEW[16];
+
// Constructor
fgVIEW( void );
extern fgVIEW current_view;
+// Basically, this is a modified version of the Mesa gluLookAt()
+// function that's been modified slightly so we can capture the result
+// before sending it off to OpenGL land.
+void fg_gluLookAt( GLdouble eyex, GLdouble eyey, GLdouble eyez,
+ GLdouble centerx, GLdouble centery, GLdouble centerz,
+ GLdouble upx, GLdouble upy, GLdouble upz );
+
+
#endif // _VIEWS_HXX
// $Log$
+// Revision 1.9 1998/07/04 00:52:27 curt
+// Add my own version of gluLookAt() (which is nearly identical to the
+// Mesa/glu version.) But, by calculating the Model View matrix our selves
+// we can save this matrix without having to read it back in from the video
+// card. This hopefully allows us to save a few cpu cycles when rendering
+// out the fragments because we can just use glLoadMatrixd() with the
+// precalculated matrix for each tile rather than doing a push(), translate(),
+// pop() for every fragment.
+//
+// Panel status defaults to off for now until it gets a bit more developed.
+//
+// Extract OpenGL driver info on initialization.
+//
// Revision 1.8 1998/05/27 02:24:06 curt
// View optimizations by Norman Vine.
//
projects / flightgear.git / commitdiff