}
}
+// ADA
+#define TEXRES_X 256
+#define TEXRES_Y 256
+unsigned char env_map[TEXRES_X][TEXRES_Y][4];
+// SetColor & SetColor2 functions were provided by Christian Mayer (26 April 2001) - used without change
+void setColor(float x, float y, float z, float angular_size, float r,
+float g, float b, float a)
+{
+ //normalize
+ float inv_length = 1.0 / sqrt(x*x + y*y + z*z);
+ x *= inv_length; y *= inv_length; z *= inv_length;
+
+ float cos_angular_size = cos(angular_size*(22.0/7.0)/180.0);
+
+ for( int s = 0; s < TEXRES_X; s++) {
+ for( int t = 0; t < TEXRES_Y; t++) {
+
+ float s_2 = (float)s/TEXRES_X - 0.5; // centre of texture 0,0
+ float t_2 = (float)t/TEXRES_Y - 0.5; // elev
+
+ float rx, ry, rz;
+
+ if ((1.0 - 4.0*s_2*s_2 - 4.0*t_2*t_2) >= 0.0) {
+ // sphere
+ float m = 4.0 * sqrt(1.0 - 4.0*s_2*s_2 - 4.0*t_2*t_2);
+ rx = m * s_2;
+ ry = m * t_2;
+ rz = m*m / 8.0 - 1.0;
+ } else {
+ // singularity
+ rx = 0.0;
+ ry = 0.0;
+ rz = -1.0;
+ }
+
+ float tx = rx; //mirroring on the z=0 plane
+ float ty = ry; //assumes that the normal is allways
+ float tz = -rz; //n(0.0, 0.0, 1.0)
+
+ if ( cos_angular_size < (x*tx + y*ty + z*tz) ) {
+ env_map[s][t][0] = (unsigned char) r * 255;
+ env_map[s][t][1] = (unsigned char) g * 255;
+ env_map[s][t][2] = (unsigned char) b * 255;
+ env_map[s][t][3] = (unsigned char) a * 255;
+ }
+ }
+ }
+}
+
+// elevation_size, float azimuth_size are the *total* angular size of the light
+void setColor2(float elevation_size,float azimuth_size, float r, float g, float b, float a)
+{
+ for( int s = 0; s < TEXRES_X; s++) {
+ for( int t = 0; t < TEXRES_Y; t++) {
+ float s_2 = (float)s/TEXRES_X - 0.5;
+ float t_2 = (float)t/TEXRES_Y - 0.5;
+
+ float rx, ry, rz;
+
+ if ((1.0 - 4.0*s_2*s_2 - 4.0*t_2*t_2) >= 0.0) {
+
+ float m = 4.0 * sqrt(1.0 - 4.0*s_2*s_2 - 4.0*t_2*t_2);
+ rx = m * s_2;
+ ry = m * t_2;
+ rz = m*m / 8.0 - 1.0;
+ } else {
+ rx = 0.0;
+ ry = 0.0;
+ rz = -1.0;
+ }
+
+ float tx = rx; //mirroring on the z=0 plane to reverse
+ float ty = ry; //OpenGLs automatic mirroring
+ float tz = -rz;
+
+ //get elevation => project t onto the x-z-plane
+ float tz_proj1 = tz / sqrt(tx*tx + tz*tz);
+ float televation = acos( -tz_proj1 ) * 180.0 / 3.1415;
+
+ //get azi => project t onto the y-z-plane
+ float tz_proj2 = tz / sqrt(ty*ty + tz*tz);
+ float tazimuth = acos( -tz_proj2 ) * 180.0 / 3.1415;
+
+ //note televation and tazimuth are the angles *between* the
+ //temporary vector and the normal (0,0,-1). They are *NOT*
+ //the elevation and azimuth angles
+
+ //square:
+ //if (((elevation_size > televation) || (elevation_size < -televation)) &&
+ // ((azimuth_size > tazimuth ) || (azimuth_size < -tazimuth )))
+ //elliptical
+ if (((televation*televation) / (elevation_size*elevation_size / 4.0) +
+ (tazimuth *tazimuth ) / (azimuth_size *azimuth_size / 4.0)) <= 1.0)
+ {
+ env_map[s][t][0] = (unsigned char) r * 255;
+ env_map[s][t][1] = (unsigned char) g * 255;
+ env_map[s][t][2] = (unsigned char) b * 255;
+ env_map[s][t][3] = (unsigned char) a * 255;
+ }
+ }
+ }
+}
+
+// 23 March 2001
+// This function performs billboarding of polygons drawn using the UP and RIGHT vectors obtained
+// from the transpose of the MODEL_VIEW_MATRIX of the ssg_current_context. Each polygon is drawn
+// at the coordinate array and material state as passed thro arguments.
+void *fgBillboard( ssgBranch *lightmaps, ssgVertexArray *light_maps, ssgSimpleState *lightmap_state, float size) {
+ sgMat4 tmat;
+ sgVec3 rt, up, nrt, nup, pt, quads[4], lmaps[4];
+
+ ssgGetModelviewMatrix ( tmat );
+ sgSetVec3 (rt, tmat[0][0], tmat[1][0], tmat[2][0]);
+ sgSetVec3 (up, tmat[0][1], tmat[1][1], tmat[2][1]);
+ sgSetVec3 (nrt, tmat[0][0], tmat[1][0], tmat[2][0]);
+ sgSetVec3 (nup, tmat[0][1], tmat[1][1], tmat[2][1]);
+ sgNegateVec3 (nrt);
+ sgNegateVec3 (nup);
+
+ sgAddVec3 (quads[0], nrt, nup);
+ sgAddVec3 (quads[1], rt, nup);
+ sgAddVec3 (quads[2], rt, up);
+ sgAddVec3 (quads[3], nrt, up);
+
+ sgScaleVec3 (quads[0], size);
+ sgScaleVec3 (quads[1], size);
+ sgScaleVec3 (quads[2], size);
+ sgScaleVec3 (quads[3], size);
+ sgVec4 color;
+ sgSetVec4( color, 1.0, 1.0, 0.0, 1.0 );
+
+ sgVec2 texcoords[4];
+ sgSetVec2( texcoords[0], 1.0, 1.0 );
+ sgSetVec2( texcoords[1], 0.0, 1.0 );
+ sgSetVec2( texcoords[2], 0.0, 0.0 );
+ sgSetVec2( texcoords[3], 1.0, 0.0 );
+
+ for (int j = 0; j < 4; j++ ) {
+ sgCopyVec3(lmaps[j] ,quads[j]);
+ }
+
+ for ( int i = 0; i < light_maps->getNum(); ++i ) {
+ // Allocate ssg structure
+ ssgVertexArray *vl = new ssgVertexArray( 1 );
+ ssgTexCoordArray *tl = new ssgTexCoordArray( 1 );
+ ssgColourArray *cl = new ssgColourArray( 1 );
+
+ float *temp = light_maps->get(i);
+ sgSetVec3(pt,temp[0],temp[1],temp[2]);
+
+ for (int k=0; k<4; k++) {
+ sgAddVec3( quads[k],lmaps[k], pt );
+ vl->add(quads[k]);
+ tl->add(texcoords[k]);
+ cl->add(color);
+ }
+
+ ssgLeaf *leaf = NULL;
+ leaf = new ssgVtxTable ( GL_TRIANGLE_FAN, vl, NULL, tl, cl );
+ leaf->setState( lightmap_state );
+ lightmaps->addKid( leaf );
+ }
+}
+
+ssgBranch* FGTileEntry::gen_runway_lights( ssgVertexArray *points,ssgVertexArray *normal,
+ ssgVertexArray *dir, int type[])
+{
+
+ //************** HARD CODED RUNWAY LIGHT TEXTURES BEGIN ************************
+ GLuint texEdge, texTaxi, texCenter, texTouchdown;
+ GLuint texThreshold, texCrossbar, texUndershoot, texApproach;
+ GLuint texRabbit, texVasi, texWhite, texRed, texGreen, texYellow;
+
+ //VASI lights
+ setColor(0.0,0.0,1.0,360.0, 0, 0, 0, 0);
+ setColor2(10.0, 40.0, 1, 1, 1, 1);
+ setColor2(6.0, 40.0, 1, 0.5, 0.5, 1);
+ setColor2(5.0, 40.0, 1, 0, 0, 1);
+ glGenTextures(1, &texVasi);
+ glBindTexture(GL_TEXTURE_2D, texVasi);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, TEXRES_X, TEXRES_Y, 0, GL_RGBA, GL_UNSIGNED_BYTE, env_map);
+ ssgSimpleState *vasi_state;
+ vasi_state = new ssgSimpleState();
+ vasi_state->ref();
+ vasi_state->setTexture( texVasi );
+ vasi_state->disable( GL_LIGHTING );
+ vasi_state->enable( GL_TEXTURE_2D );
+ vasi_state->setShadeModel( GL_SMOOTH );
+
+ //EDGE
+ setColor(0.0,0.0,-1.0,180.0, 1, 1, 0.5, 1);
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ glGenTextures(1, &texEdge);
+ glBindTexture(GL_TEXTURE_2D, texEdge);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, TEXRES_X, TEXRES_Y, 0, GL_RGBA, GL_UNSIGNED_BYTE, env_map);
+ ssgSimpleState *edge_state;
+ edge_state = new ssgSimpleState();
+ edge_state->ref();
+ edge_state->setTexture( texEdge );
+ edge_state->disable( GL_LIGHTING );
+ edge_state->enable( GL_TEXTURE_2D );
+ edge_state->setShadeModel( GL_SMOOTH );
+
+ //TOUCHDOWN
+ setColor(0.0,0.0,-1.0,180.0, 0, 1, 0, 1);
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ glGenTextures(1, &texTouchdown);
+ glBindTexture(GL_TEXTURE_2D, texTouchdown);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, TEXRES_X, TEXRES_Y, 0, GL_RGBA, GL_UNSIGNED_BYTE, env_map);
+ ssgSimpleState *touchdown_state;
+ touchdown_state = new ssgSimpleState();
+ touchdown_state->ref();
+ touchdown_state->setTexture( texTouchdown );
+ touchdown_state->disable( GL_LIGHTING );
+ touchdown_state->enable( GL_TEXTURE_2D );
+ touchdown_state->setShadeModel( GL_SMOOTH );
+
+ //THRESHOLD
+ setColor(0.0,0.0,-1.0,180.0, 1, 0, 0, 1);
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ glGenTextures(1, &texThreshold);
+ glBindTexture(GL_TEXTURE_2D, texThreshold);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, TEXRES_X, TEXRES_Y, 0, GL_RGBA, GL_UNSIGNED_BYTE, env_map);
+ ssgSimpleState *threshold_state;
+ threshold_state = new ssgSimpleState();
+ threshold_state->ref();
+ threshold_state->setTexture( texThreshold );
+ threshold_state->disable( GL_LIGHTING );
+ threshold_state->enable( GL_TEXTURE_2D );
+ threshold_state->setShadeModel( GL_SMOOTH );
+
+ //TAXI
+ setColor(0.0,0.0,-1.0,180.0, 0, 0, 1, 1);
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ glGenTextures(1, &texTaxi);
+ glBindTexture(GL_TEXTURE_2D, texTaxi);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, TEXRES_X, TEXRES_Y, 0, GL_RGBA, GL_UNSIGNED_BYTE, env_map);
+ ssgSimpleState *taxi_state;
+ taxi_state = new ssgSimpleState();
+ taxi_state->ref();
+ taxi_state->setTexture( texTaxi );
+ taxi_state->disable( GL_LIGHTING );
+ taxi_state->enable( GL_TEXTURE_2D );
+ taxi_state->setShadeModel( GL_SMOOTH );
+
+ //WHITE
+ setColor(0.0,0.0,-1.0,180.0, 1, 1, 1, 1);
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ glGenTextures(1, &texWhite);
+ glBindTexture(GL_TEXTURE_2D, texWhite);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, TEXRES_X, TEXRES_Y, 0, GL_RGBA, GL_UNSIGNED_BYTE, env_map);
+ ssgSimpleState *white_state;
+ white_state = new ssgSimpleState();
+ white_state->ref();
+ white_state->setTexture( texWhite );
+ white_state->disable( GL_LIGHTING );
+ white_state->enable( GL_TEXTURE_2D );
+ white_state->setShadeModel( GL_SMOOTH );
+
+ //RED
+ setColor(0.0,0.0,-1.0,180.0, 1, 0, 0, 1);
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ glGenTextures(1, &texRed);
+ glBindTexture(GL_TEXTURE_2D, texRed);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, TEXRES_X, TEXRES_Y, 0, GL_RGBA, GL_UNSIGNED_BYTE, env_map);
+ ssgSimpleState *red_state;
+ red_state = new ssgSimpleState();
+ red_state->ref();
+ red_state->setTexture( texRed );
+ red_state->disable( GL_LIGHTING );
+ red_state->enable( GL_TEXTURE_2D );
+ red_state->setShadeModel( GL_SMOOTH );
+
+ //GREEN
+ setColor(0.0,0.0,-1.0,180.0, 0, 1, 0, 1);
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ glGenTextures(1, &texGreen);
+ glBindTexture(GL_TEXTURE_2D, texGreen);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, TEXRES_X, TEXRES_Y, 0, GL_RGBA, GL_UNSIGNED_BYTE, env_map);
+ ssgSimpleState *green_state;
+ green_state = new ssgSimpleState();
+ green_state->ref();
+ green_state->setTexture( texGreen );
+ green_state->disable( GL_LIGHTING );
+ green_state->enable( GL_TEXTURE_2D );
+ green_state->setShadeModel( GL_SMOOTH );
+
+ //YELLOW
+ setColor(0.0,0.0,-1.0,180.0, 1, 1, 0, 1);
+ glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+ glGenTextures(1, &texYellow);
+ glBindTexture(GL_TEXTURE_2D, texYellow);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+ glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, TEXRES_X, TEXRES_Y, 0, GL_RGBA, GL_UNSIGNED_BYTE, env_map);
+ ssgSimpleState *yellow_state;
+ yellow_state = new ssgSimpleState();
+ yellow_state->ref();
+ yellow_state->setTexture( texYellow );
+ yellow_state->disable( GL_LIGHTING );
+ yellow_state->enable( GL_TEXTURE_2D );
+ yellow_state->setShadeModel( GL_SMOOTH );
+//************** HARD CODED RUNWAY LIGHT TEXTURES END ************************
+
+ ssgBranch *runway_lights = new ssgBranch;
+ sgVec3 v2,v3,inf,side;
+
+ ssgLeaf *leaf1 = NULL;
+ ssgLeaf *leaf2 = NULL;
+ ssgLeaf *leaf7 = NULL;
+ ssgLeaf *leaf8 = NULL;
+ ssgLeaf *leaf9 = NULL;
+
+ ssgVertexArray *vlw = new ssgVertexArray( 1 );
+ ssgNormalArray *nlw = new ssgNormalArray( 1 );
+ ssgVertexArray *vlt = new ssgVertexArray( 1 );
+ ssgNormalArray *nlt = new ssgNormalArray( 1 );
+ ssgVertexArray *vlr = new ssgVertexArray( 1 );
+ ssgNormalArray *nlr = new ssgNormalArray( 1 );
+ ssgVertexArray *vlg = new ssgVertexArray( 1 );
+ ssgNormalArray *nlg = new ssgNormalArray( 1 );
+ ssgVertexArray *vly = new ssgVertexArray( 1 );
+ ssgNormalArray *nly = new ssgNormalArray( 1 );
+
+ for ( int i = 0; i < points->getNum()-1; i=i++ ) {
+
+ // Allocate ssg structure
+ ssgVertexArray *vl = new ssgVertexArray( 1 );
+ ssgNormalArray *nl = new ssgNormalArray( 1 );
+ ssgVertexArray *vl1 = new ssgVertexArray( 1 );
+ ssgNormalArray *nl1 = new ssgNormalArray( 1 );
+
+ float *n1 = normal->get(i);
+ float *d1 = dir->get(i);
+
+ /* TEMPORARY CODE BEGIN
+ // calculate normal using 1st, 2nd & last vertices of the group
+ sgVec3 n1;
+ sgMakeNormal (n1, points->get(0), points->get(1), points->get(points->getNum()-1) );
+ sgVec3 d1;
+ sgSubVec3(d1,points->get(1),points->get(0));
+ printf("%f %f %f\n",n1[0],n1[1],n1[2]);
+ printf("%f %f %f\n",d1[0],d1[1],d1[2]);
+ type[i] = 2;
+ ----TEMPORARY CODE END */
+
+
+ sgNormaliseVec3 ( n1 );
+ sgNormaliseVec3 ( d1 );
+ sgVec3 d2;
+ d2[0] = -d1[0];
+ d2[1] = -d1[1];
+ d2[2] = -d1[2];
+
+ sgVectorProductVec3(side,n1,d1);
+ sgScaleVec3 (inf,n1,-50);
+ sgScaleVec3 (side,5);
+
+ float *v1 = points->get(i);
+ sgAddVec3(v2,v1,inf);
+ sgAddVec3(v3,v2,side);
+
+ if ( type[i] == 1) { //POINT,WHITE
+
+ vlw->add(v1);
+ nlw->add(d1);
+
+ } else if (type[i] == 2) { //POINT,TAXI
+
+ vlt->add(v1);
+ nlt->add(d1);
+
+ } else if (type[i] == 3) { //SINGLE POLYGON,VASI
+
+ vl->add(v1);
+ nl->add(d1);
+ vl->add(v3);
+ nl->add(d1);
+ vl->add(v2);
+ nl->add(d1);
+
+ ssgLeaf *leaf3 = NULL;
+ leaf3 = new ssgVtxTable ( GL_POLYGON, vl, nl, NULL, NULL );
+ leaf3->setState( vasi_state );
+ runway_lights->addKid( leaf3 );
+
+ } else if (type[i] == 4) { //BACK-TO-BACK POLYGONS,TOUCHDOWN/THRESHOLD
+
+ vl->add(v1);
+ nl->add(d1);
+ vl->add(v3);
+ nl->add(d1);
+ vl->add(v2);
+ nl->add(d1);
+
+ vl1->add(v3);
+ nl1->add(d2);
+ vl1->add(v1);
+ nl1->add(d2);
+ vl1->add(v2);
+ nl1->add(d2);
+
+ ssgLeaf *leaf41 = NULL;
+ leaf41 = new ssgVtxTable ( GL_POLYGON, vl, nl, NULL, NULL );
+ leaf41->setState( touchdown_state );
+ runway_lights->addKid( leaf41 );
+
+ ssgLeaf *leaf42 = NULL;
+ leaf42 = new ssgVtxTable ( GL_POLYGON, vl1, nl1, NULL, NULL );
+ leaf42->setState( threshold_state );
+ runway_lights->addKid( leaf42 );
+
+ } else if ( type[i] == 5) { //POINT,WHITE, SEQUENCE LIGHTS (RABBIT)
+
+ vl->add(v1);
+ nl->add(d1);
+ ssgLeaf *leaf5 = NULL;
+ leaf5 = new ssgVtxTable ( GL_POINTS, vl, nl, NULL, NULL );
+ leaf5->setState( white_state );
+ lightmaps_sequence->addKid (leaf5);
+
+ } else if ( type[i] == 6) { //POINT,WHITE, SEQUENCE LIGHTS (RABBIT)
+
+ vl->add(v1);
+ nl->add(d1);
+ ssgLeaf *leaf6 = NULL;
+ leaf6 = new ssgVtxTable ( GL_POINTS, vl, nl, NULL, NULL );
+ leaf6->setState( yellow_state );
+ ols_transform->addKid (leaf6);
+ // DO NOT DELETE THIS CODE - This is to compare a discrete FLOLS (without LOD) with analog FLOLS
+ // lightmaps_sequence->addKid (leaf6);
+ // DO NOT DELETE THIS CODE - This is to compare a discrete FLOLS (without LOD) with analog FLOLS
+
+ } else if (type[i] == 7) { //POINT,RED
+
+ vlr->add(v1);
+ nlr->add(d1);
+
+ } else if (type[i] == 8) { //POINT,GREEN
+
+ vlg->add(v1);
+ nlg->add(d1);
+
+ } else if (type[i] == 9) { //POINT,YELLOW
+
+ vly->add(v1);
+ nly->add(d1);
+
+ }
+
+ }
+
+ leaf1 = new ssgVtxTable ( GL_POINTS, vlw, nlw, NULL, NULL );
+ leaf1->setState( white_state );
+ runway_lights->addKid( leaf1 );
+
+ leaf2 = new ssgVtxTable ( GL_POINTS, vlt, nlt, NULL, NULL );
+ leaf2->setState( taxi_state );
+ runway_lights->addKid( leaf2 );
+
+ leaf7 = new ssgVtxTable ( GL_POINTS, vlr, nlr, NULL, NULL );
+ leaf7->setState( red_state );
+ runway_lights->addKid( leaf7 );
+
+ leaf8 = new ssgVtxTable ( GL_POINTS, vlg, nlg, NULL, NULL );
+ leaf8->setState( green_state );
+ // DO NOT DELETE THIS CODE - This is to compare a discrete FLOLS (without LOD) with analog FLOLS
+ ols_transform->ref();
+ lightmaps_sequence->addKid (ols_transform);
+ // DO NOT DELETE THIS CODE - This is to compare a discrete FLOLS (without LOD) with analog FLOLS
+ lightmaps_sequence->addKid (leaf8);
+
+ leaf9 = new ssgVtxTable ( GL_POINTS, vly, nly, NULL, NULL );
+ leaf9->setState( yellow_state );
+ runway_lights->addKid( leaf9 );
+
+ lightmaps_sequence->select(0xFFFFFF);
+ return runway_lights;
+}
+// ADA
+
#ifdef WISH_PLIB_WAS_THREADED // but it isn't
// Schedule tile to be freed/removed
// disconnected from the scene graph)
ssgDeRefDelete( lights_transform );
}
+
+ // ADA
+ if ( lightmaps_transform ) {
+ // delete the terrain lighting branch (this should already have been
+ // disconnected from the scene graph)
+ ssgDeRefDelete( lightmaps_transform );
+ }
+ // ADA
}
lights_brightness->select(0x00);
}
}
+
+ // ADA
+ // Transform & Render runway lights - 23 Mar 2001
+ sgSetVec3( sgTrans, offset.x(), offset.y(), offset.z() );
+ if ( lightmaps_transform ) {
+ static unsigned int selectnode = 0;
+ // Run-time extension check.
+ if (!glutExtensionSupported("GL_EXT_point_parameters")) {
+ //use lightmaps on billboarded polygons
+ } else {
+ // using GL_EXT_point_parameters
+
+ // This part is same as ground-lights code above by Curt
+ sgVec3 up1;
+ sgCopyVec3( up1, globals->get_current_view()->get_world_up() );
+
+ double agl1;
+ if ( current_aircraft.fdm_state ) {
+ agl1 = current_aircraft.fdm_state->get_Altitude() * SG_FEET_TO_METER
+ - scenery.cur_elev;
+ } else {
+ agl1 = 0.0;
+ }
+
+ // sgTrans just happens to be the
+ // vector from scenery center to the center of this tile which
+ // is what we want to calculate the distance of
+ sgVec3 to1;
+ sgCopyVec3( to1, sgTrans );
+ double dist1 = sgLengthVec3( to1 );
+
+ if ( general.get_glDepthBits() > 16 ) {
+ sgScaleVec3( up1, 0.0 + agl1 / 2000.0 + dist1 / 10000 );
+ } else {
+ sgScaleVec3( up1, 0.0 + agl1 / 20.0 + dist1 / 5000 );
+ }
+ sgAddVec3( sgTrans, up1 );
+ lightmaps_transform->setTransform( sgTrans );
+
+ float sun_angle1 = cur_light_params.sun_angle * SGD_RADIANS_TO_DEGREES;
+ if ( (sun_angle1 > 89) ) {
+ lightmaps_brightness->select(0x01);
+ selectnode *=2;
+ selectnode = selectnode | 0x000001;
+ if (selectnode > 0xFFFFFF) selectnode = 1;
+ lightmaps_sequence->select(selectnode);
+ } else {
+ lightmaps_brightness->select(0x00);
+ lightmaps_sequence->select(0x000000);
+ }
+ } // end of GL_EXT_point_parameters section
+
+ } // end of runway lights section
+ // ADA
+
}
SG_LOG( SG_TERRAIN, SG_INFO, "Loading tile " << basename.str() );
+#define FG_MAX_LIGHTS 1000
// obj_load() will generate ground lighting for us ...
ssgVertexArray *light_pts = new ssgVertexArray( 100 );
+
+ // ADA
+ ssgVertexArray *lights_rway = new ssgVertexArray( 100 );
+ ssgVertexArray *lights_dir = new ssgVertexArray( 100 );
+ ssgVertexArray *lights_normal = new ssgVertexArray( 100 );
+ int lights_type[FG_MAX_LIGHTS];
+ // ADA
+
ssgBranch* new_tile = new ssgBranch;
// Check for master .stg (scene terra gear) file
// ground->addKid( lights_transform );
}
/* end of ground light section */
+
+ // ADA
+ // Create runway lights - 23 Mar 2001
+ lightmaps_transform = NULL;
+ lightmaps_sequence = NULL;
+ ols_transform = NULL;
+ // lightmaps_range = NULL;
+
+ if ( lights_rway->getNum() ) {
+ SG_LOG( SG_TERRAIN, SG_DEBUG, "generating airport lights" );
+ lightmaps_transform = new ssgTransform;
+ // lightmaps_range = new ssgRangeSelector;
+ lightmaps_brightness = new ssgSelector;
+ lightmaps_sequence = new ssgSelector;
+ ols_transform = new ssgTransform;
+ ssgBranch *lightmaps_branch;
+
+ // call function to generate the runway lights
+ lightmaps_branch = gen_runway_lights( lights_rway,
+ lights_normal, lights_dir, lights_type);
+ lightmaps_brightness->addKid( lightmaps_branch );
+
+ // build the runway lights' scene
+ // lightmaps_range->addKid( lightmaps_brightness ); //dont know why this doesnt work !!
+ // lightmaps_transform->addKid( lightmaps_range ); //dont know why this doesnt work !!
+ lightmaps_transform->addKid( lightmaps_brightness );
+ lightmaps_sequence->setTraversalMaskBits( SSGTRAV_HOT );
+ lightmaps_transform->addKid( lightmaps_sequence );
+ lightmaps_transform->setTransform( &sgcoord );
+ }
+ // ADA
}
ground->addKid( lights_transform );
}
+ // ADA
+ if ( lightmaps_transform != 0 ) {
+ // bump up the ref count so we can remove this later without
+ // having ssg try to free the memory.
+ lightmaps_transform->ref();
+ ground->addKid( lightmaps_transform );
+ }
+ // ADA
+
loaded = true;
}
exit(-1);
}
}
+
+ // ADA
+ //runway lights - 23 Mar 2001
+ // Delete runway lights and free memory
+ if ( lightmaps_transform ) {
+ // delete the runway lighting branch
+ pcount = lightmaps_transform->getNumParents();
+ if ( pcount > 0 ) {
+ // find the first parent (should only be one)
+ ssgBranch *parent = lightmaps_transform->getParent( 0 ) ;
+ if( parent ) {
+ parent->removeKid( lightmaps_transform );
+ lightmaps_transform = NULL;
+ } else {
+ SG_LOG( SG_TERRAIN, SG_ALERT,
+ "lightmaps parent pointer is NULL! Dying" );
+ exit(-1);
+ }
+ } else {
+ SG_LOG( SG_TERRAIN, SG_ALERT,
+ "Parent count is zero for an ssg lightmap tile! Dying" );
+ exit(-1);
+ }
+ }
+ // ADA
}
projects / flightgear.git / commitdiff