X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FObjects%2Fobj.cxx;h=a33178ae44783b18b51ce93a0cafa334d5e00983;hb=ab381e5c013292935c598dbe80bdd092bcbdd3ff;hp=2f7cef034e3c53ab4655e2ccf45183b0702ec221;hpb=655ce0e20dbe1c8d902d753baee27f77b61fdaf2;p=flightgear.git diff --git a/src/Objects/obj.cxx b/src/Objects/obj.cxx index 2f7cef034..a33178ae4 100644 --- a/src/Objects/obj.cxx +++ b/src/Objects/obj.cxx @@ -25,19 +25,15 @@ # include #endif -#ifdef FG_MATH_EXCEPTION_CLASH +#ifdef SG_MATH_EXCEPTION_CLASH # include #endif #include #include -// #if defined ( __sun__ ) -// extern "C" void *memmove(void *, const void *, size_t); -// extern "C" void *memset(void *, int, size_t); -// #endif - #include +#include #include STL_STRING #include // STL @@ -46,22 +42,23 @@ #include #include -#include -#include #include #include -#include +#include +#include +#include #include #include -#include
+#include
+#include
#include #include "matlib.hxx" #include "obj.hxx" -FG_USING_STD(string); -FG_USING_STD(vector); +SG_USING_STD(string); +SG_USING_STD(vector); typedef vector < int > int_list; @@ -73,25 +70,6 @@ static double normals[FG_MAX_NODES][3]; static double tex_coords[FG_MAX_NODES*3][3]; -#if 0 -// given three points defining a triangle, calculate the normal -static void calc_normal(Point3D p1, Point3D p2, - Point3D p3, sgVec3 normal) -{ - sgVec3 v1, v2; - - v1[0] = p2[0] - p1[0]; v1[1] = p2[1] - p1[1]; v1[2] = p2[2] - p1[2]; - v2[0] = p3[0] - p1[0]; v2[1] = p3[1] - p1[1]; v2[2] = p3[2] - p1[2]; - - sgVectorProductVec3( normal, v1, v2 ); - sgNormalizeVec3( normal ); - - // fgPrintf( FG_TERRAIN, FG_DEBUG, " Normal = %.2f %.2f %.2f\n", - // normal[0], normal[1], normal[2]); -} -#endif - - #define FG_TEX_CONSTANT 69.0 // Calculate texture coordinates for a given point. @@ -107,14 +85,14 @@ static Point3D local_calc_tex_coords(const Point3D& node, const Point3D& ref) { node[1] + ref.y(), node[2] + ref.z() ); - pp = fgCartToPolar3d(cp); + pp = sgCartToPolar3d(cp); - // tmplon = pp.lon() * RAD_TO_DEG; - // tmplat = pp.lat() * RAD_TO_DEG; + // tmplon = pp.lon() * SGD_RADIANS_TO_DEGREES; + // tmplat = pp.lat() * SGD_RADIANS_TO_DEGREES; // cout << tmplon << " " << tmplat << endl; - pp.setx( fmod(RAD_TO_DEG * FG_TEX_CONSTANT * pp.x(), 11.0) ); - pp.sety( fmod(RAD_TO_DEG * FG_TEX_CONSTANT * pp.y(), 11.0) ); + pp.setx( fmod(SGD_RADIANS_TO_DEGREES * FG_TEX_CONSTANT * pp.x(), 11.0) ); + pp.sety( fmod(SGD_RADIANS_TO_DEGREES * FG_TEX_CONSTANT * pp.y(), 11.0) ); if ( pp.x() < 0.0 ) { pp.setx( pp.x() + 11.0 ); @@ -137,6 +115,11 @@ ssgBranch *fgGenTile( const string& path, FGTileEntry *t) { ssgSimpleState *state = NULL; ssgBranch *tile = new ssgBranch () ; + if ( !tile ) { + SG_LOG( SG_TERRAIN, SG_ALERT, "fgGenTile(): NO MEMORY" ); + return NULL; + } + tile -> setName ( (char *)path.c_str() ) ; double tex_width = 1000.0; @@ -153,19 +136,19 @@ ssgBranch *fgGenTile( const string& path, FGTileEntry *t) { // set ssgState state = newmat->get_state(); } else { - FG_LOG( FG_TERRAIN, FG_ALERT, + SG_LOG( SG_TERRAIN, SG_ALERT, "Ack! unknown usemtl name = " << "Ocean" << " in " << path ); } // Calculate center point - FGBucket b = t->tile_bucket; + SGBucket b = t->tile_bucket; double clon = b.get_center_lon(); double clat = b.get_center_lat(); double height = b.get_height(); double width = b.get_width(); - Point3D center = fgGeodToCart(Point3D(clon*DEG_TO_RAD,clat*DEG_TO_RAD,0.0)); + Point3D center = sgGeodToCart(Point3D(clon*SGD_DEGREES_TO_RADIANS,clat*SGD_DEGREES_TO_RADIANS,0.0)); t->center = center; // cout << "center = " << center << endl;; @@ -179,14 +162,15 @@ ssgBranch *fgGenTile( const string& path, FGTileEntry *t) { Point3D rad[4]; int i; for ( i = 0; i < 4; ++i ) { - rad[i] = Point3D( geod[i].x() * DEG_TO_RAD, geod[i].y() * DEG_TO_RAD, - geod[i].z() ); + rad[i] = Point3D( geod[i].x() * SGD_DEGREES_TO_RADIANS, + geod[i].y() * SGD_DEGREES_TO_RADIANS, + geod[i].z() ); } Point3D cart[4], rel[4]; t->nodes.clear(); for ( i = 0; i < 4; ++i ) { - cart[i] = fgGeodToCart(rad[i]); + cart[i] = sgGeodToCart(rad[i]); rel[i] = cart[i] - center; t->nodes.push_back( rel[i] ); // cout << "corner " << i << " = " << cart[i] << endl; @@ -201,21 +185,18 @@ ssgBranch *fgGenTile( const string& path, FGTileEntry *t) { // Calculate normals Point3D normals[4]; for ( i = 0; i < 4; ++i ) { - normals[i] = cart[i]; - double length = normals[i].distance3D( Point3D(0.0) ); - normals[i] /= length; + double length = cart[i].distance3D( Point3D(0.0) ); + normals[i] = cart[i] / length; // cout << "normal = " << normals[i] << endl; } // Calculate texture coordinates point_list geod_nodes; geod_nodes.clear(); - for ( i = 0; i < 4; ++i ) { - geod_nodes.push_back( geod[i] ); - } int_list rectangle; rectangle.clear(); for ( i = 0; i < 4; ++i ) { + geod_nodes.push_back( geod[i] ); rectangle.push_back( i ); } point_list texs = calc_tex_coords( b, geod_nodes, rectangle, @@ -259,17 +240,82 @@ ssgBranch *fgGenTile( const string& path, FGTileEntry *t) { leaf->setState( state ); tile->addKid( leaf ); - // if ( current_options.get_clouds() ) { - // fgGenCloudTile(path, t, tile); - // } return tile; } -// Load a .obj file -ssgBranch *fgObjLoad( const string& path, FGTileEntry *t, const bool is_base) { - FGNewMat *newmat; +static void random_pt_inside_tri( float *res, + float *n1, float *n2, float *n3 ) +{ + sgVec3 p1, p2, p3; + + double a = sg_random(); + double b = sg_random(); + if ( a + b > 1.0 ) { + a = 1.0 - a; + b = 1.0 - b; + } + double c = 1 - a - b; + + sgScaleVec3( p1, n1, a ); + sgScaleVec3( p2, n2, b ); + sgScaleVec3( p3, n3, c ); + + sgAddVec3( res, p1, p2 ); + sgAddVec3( res, p3 ); +} + + +static void gen_random_surface_points( ssgLeaf *leaf, ssgVertexArray *lights, + double factor ) { + int num = leaf->getNumTriangles(); + if ( num > 0 ) { + short int n1, n2, n3; + float *p1, *p2, *p3; + sgVec3 result; + + // generate a repeatable random seed + p1 = leaf->getVertex( 0 ); + unsigned int seed = (unsigned int)p1[0]; + sg_srandom( seed ); + + for ( int i = 0; i < num; ++i ) { + leaf->getTriangle( i, &n1, &n2, &n3 ); + p1 = leaf->getVertex(n1); + p2 = leaf->getVertex(n2); + p3 = leaf->getVertex(n3); + double area = sgTriArea( p1, p2, p3 ); + double num = area / factor; + + // generate a light point for each unit of area + while ( num > 1.0 ) { + random_pt_inside_tri( result, p1, p2, p3 ); + lights->add( result ); + num -= 1.0; + } + // for partial units of area, use a zombie door method to + // create the proper random chance of a light being created + // for this triangle + if ( num > 0.0 ) { + if ( sg_random() <= num ) { + // a zombie made it through our door + random_pt_inside_tri( result, p1, p2, p3 ); + lights->add( result ); + } + } + } + } +} + + +// Load an Ascii obj file +ssgBranch *fgAsciiObjLoad( const string& path, FGTileEntry *t, + ssgVertexArray *lights, const bool is_base) +{ + FGNewMat *newmat = NULL; + string material; + float coverage = -1; Point3D pp; // sgVec3 approx_normal; // double normal[3], scale = 0.0; @@ -301,15 +347,17 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t, const bool is_base) { tile -> setName ( (char *)path.c_str() ) ; // Attempt to open "path.gz" or "path" - fg_gzifstream in( path ); + sg_gzifstream in( path ); if ( ! in.is_open() ) { - FG_LOG( FG_TERRAIN, FG_ALERT, "Cannot open file: " << path ); - FG_LOG( FG_TERRAIN, FG_ALERT, "default to ocean tile: " << path ); + SG_LOG( SG_TERRAIN, SG_DEBUG, "Cannot open file: " << path ); + SG_LOG( SG_TERRAIN, SG_DEBUG, "default to ocean tile: " << path ); + + delete tile; - return fgGenTile( path, t ); + return NULL; } - shading = current_options.get_shading(); + shading = fgGetBool("/sim/rendering/shading"); if ( is_base ) { t->ncount = 0; @@ -321,8 +369,8 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t, const bool is_base) { } center = t->center; - StopWatch stopwatch; - stopwatch.start(); + // StopWatch stopwatch; + // stopwatch.start(); // ignore initial comments and blank lines. (priming the pump) // in >> skipcomment; @@ -338,11 +386,7 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t, const bool is_base) { while ( ! in.eof() ) { #endif -#if defined( macintosh ) in >> ::skipws; -#else - in >> skipws; -#endif if ( in.get( c ) && c == '#' ) { // process a comment line @@ -356,6 +400,16 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t, const bool is_base) { // read scenery versions number in >> scenery_version; // cout << "scenery_version = " << scenery_version << endl; + if ( scenery_version > 0.4 ) { + SG_LOG( SG_TERRAIN, SG_ALERT, + "\nYou are attempting to load a tile format that\n" + << "is newer than this version of flightgear can\n" + << "handle. You should upgrade your copy of\n" + << "FlightGear to the newest version. For\n" + << "details, please see:\n" + << "\n http://www.flightgear.org\n" ); + exit(-1); + } } else if ( token == "gbs" ) { // reference point (center offset) if ( is_base ) { @@ -382,8 +436,9 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t, const bool is_base) { if ( ! shared_done ) { // sanity check if ( (int)nodes.size() != vncount ) { - FG_LOG( FG_TERRAIN, FG_ALERT, - "Tile has mismatched nodes and normals: " + SG_LOG( SG_TERRAIN, SG_ALERT, + "Tile has mismatched nodes = " << nodes.size() + << " and normals = " << vncount << " : " << path ); // exit(-1); } @@ -419,7 +474,6 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t, const bool is_base) { in_faces = false; // scan the material line - string material; in >> material; // find this material in the properties list @@ -435,14 +489,14 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t, const bool is_base) { file += material; cout << "current file = " << file << endl; if ( ! material_lib.add_item( file ) ) { - FG_LOG( FG_TERRAIN, FG_ALERT, + SG_LOG( SG_TERRAIN, SG_ALERT, "Ack! unknown usemtl name = " << material << " in " << path ); } else { // locate our newly created material newmat = material_lib.find( material ); if ( newmat == NULL ) { - FG_LOG( FG_TERRAIN, FG_ALERT, + SG_LOG( SG_TERRAIN, SG_ALERT, "Ack! bad on the fly materia create = " << material << " in " << path ); } @@ -455,11 +509,14 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t, const bool is_base) { tex_width = newmat->get_xsize(); tex_height = newmat->get_ysize(); state = newmat->get_state(); + coverage = newmat->get_light_coverage(); // cout << "(w) = " << tex_width << " (h) = " // << tex_width << endl; + } else { + coverage = -1; } } else { - // unknown comment, just gobble the input untill the + // unknown comment, just gobble the input until the // end of line in >> skipeol; @@ -479,7 +536,7 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t, const bool is_base) { >> normals[vncount][2]; vncount++; } else { - FG_LOG( FG_TERRAIN, FG_ALERT, + SG_LOG( SG_TERRAIN, SG_ALERT, "Read too many vertex normals in " << path << " ... dying :-(" ); exit(-1); @@ -491,7 +548,7 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t, const bool is_base) { >> tex_coords[vtcount][1]; vtcount++; } else { - FG_LOG( FG_TERRAIN, FG_ALERT, + SG_LOG( SG_TERRAIN, SG_ALERT, "Read too many vertex texture coords in " << path << " ... dying :-(" ); @@ -509,14 +566,14 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t, const bool is_base) { t->ncount++; } } else { - FG_LOG( FG_TERRAIN, FG_ALERT, + SG_LOG( SG_TERRAIN, SG_ALERT, "Read too many nodes in " << path << " ... dying :-("); exit(-1); } } else if ( (token == "tf") || (token == "ts") || (token == "f") ) { // triangle fan, strip, or individual face - // FG_LOG( FG_TERRAIN, FG_INFO, "new fan or strip"); + // SG_LOG( SG_TERRAIN, SG_INFO, "new fan or strip"); fan_vertices.clear(); fan_tex_coords.clear(); @@ -572,11 +629,7 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t, const bool is_base) { // read all subsequent numbers until next thing isn't a number while ( true ) { -#if defined( macintosh ) in >> ::skipws; -#else - in >> skipws; -#endif char c; in.get(c); @@ -666,18 +719,25 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t, const bool is_base) { leaf->setState( state ); tile->addKid( leaf ); + + if ( is_base ) { + if ( coverage > 0.0 ) { + if ( coverage < 10000.0 ) { + SG_LOG(SG_INPUT, SG_ALERT, "Light coverage is " + << coverage << ", pushing up to 10000"); + coverage = 10000; + } + gen_random_surface_points(leaf, lights, coverage); + } + } } else { - FG_LOG( FG_TERRAIN, FG_WARN, "Unknown token in " + SG_LOG( SG_TERRAIN, SG_WARN, "Unknown token in " << path << " = " << token ); } // eat white space before start of while loop so if we are // done with useful input it is noticed before hand. -#if defined( macintosh ) in >> ::skipws; -#else - in >> skipws; -#endif } } @@ -685,16 +745,263 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t, const bool is_base) { t->nodes = nodes; } - stopwatch.stop(); - FG_LOG( FG_TERRAIN, FG_DEBUG, - "Loaded " << path << " in " - << stopwatch.elapsedSeconds() << " seconds" ); + // stopwatch.stop(); + // SG_LOG( SG_TERRAIN, SG_DEBUG, + // "Loaded " << path << " in " + // << stopwatch.elapsedSeconds() << " seconds" ); - // Generate a cloud layer above the tiles - // if ( current_options.get_clouds() ) { - // fgGenCloudTile(path, t, tile); - // } return tile; } +ssgLeaf *gen_leaf( const string& path, + const GLenum ty, const string& material, + const point_list& nodes, const point_list& normals, + const point_list& texcoords, + const int_list node_index, + const int_list& tex_index, + const bool calc_lights, ssgVertexArray *lights ) +{ + double tex_width = 1000.0, tex_height = 1000.0; + ssgSimpleState *state = NULL; + float coverage = -1; + + FGNewMat *newmat = material_lib.find( material ); + if ( newmat == NULL ) { + // see if this is an on the fly texture + string file = path; + int pos = file.rfind( "/" ); + file = file.substr( 0, pos ); + cout << "current file = " << file << endl; + file += "/"; + file += material; + cout << "current file = " << file << endl; + if ( ! material_lib.add_item( file ) ) { + SG_LOG( SG_TERRAIN, SG_ALERT, + "Ack! unknown usemtl name = " << material + << " in " << path ); + } else { + // locate our newly created material + newmat = material_lib.find( material ); + if ( newmat == NULL ) { + SG_LOG( SG_TERRAIN, SG_ALERT, + "Ack! bad on the fly material create = " + << material << " in " << path ); + } + } + } + + if ( newmat != NULL ) { + // set the texture width and height values for this + // material + tex_width = newmat->get_xsize(); + tex_height = newmat->get_ysize(); + state = newmat->get_state(); + coverage = newmat->get_light_coverage(); + // cout << "(w) = " << tex_width << " (h) = " + // << tex_width << endl; + } else { + coverage = -1; + } + + // cout << "before list allocs" << endl; + + // cout << "before vl, size = " << size << endl; + // cout << "before nl" << endl; + // cout << "before tl" << endl; + // cout << "before cl" << endl; + + sgVec2 tmp2; + sgVec3 tmp3; + sgVec4 tmp4; + int i; + + // vertices + int size = node_index.size(); + if ( size < 1 ) { + SG_LOG( SG_TERRAIN, SG_ALERT, "Woh! node list size < 1" ); + exit(-1); + } + ssgVertexArray *vl = new ssgVertexArray( size ); + Point3D node; + for ( i = 0; i < size; ++i ) { + node = nodes[ node_index[i] ]; + sgSetVec3( tmp3, node[0], node[1], node[2] ); + vl -> add( tmp3 ); + } + + // colors + ssgColourArray *cl = new ssgColourArray( 1 ); + sgSetVec4( tmp4, 1.0, 1.0, 1.0, 1.0 ); + cl->add( tmp4 ); + + // normals + Point3D normal; + ssgNormalArray *nl = new ssgNormalArray( size ); + if ( normals.size() == 1 ) { + normal = normals[ 0 ]; + sgSetVec3( tmp3, normal[0], normal[1], normal[2] ); + nl -> add( tmp3 ); + } else if ( normals.size() > 1 ) { + for ( i = 0; i < size; ++i ) { + normal = normals[ node_index[i] ]; + sgSetVec3( tmp3, normal[0], normal[1], normal[2] ); + nl -> add( tmp3 ); + } + } + + // texture coordinates + size = tex_index.size(); + Point3D texcoord; + ssgTexCoordArray *tl = new ssgTexCoordArray( size ); + if ( size == 1 ) { + texcoord = texcoords[ tex_index[0] ]; + sgSetVec2( tmp2, texcoord[0], texcoord[1] ); + sgSetVec2( tmp2, texcoord[0], texcoord[1] ); + if ( tex_width > 0 ) { + tmp2[0] *= (1000.0 / tex_width); + } + if ( tex_height > 0 ) { + tmp2[1] *= (1000.0 / tex_height); + } + tl -> add( tmp2 ); + } else if ( size > 1 ) { + for ( i = 0; i < size; ++i ) { + texcoord = texcoords[ tex_index[i] ]; + sgSetVec2( tmp2, texcoord[0], texcoord[1] ); + if ( tex_width > 0 ) { + tmp2[0] *= (1000.0 / tex_width); + } + if ( tex_height > 0 ) { + tmp2[1] *= (1000.0 / tex_height); + } + tl -> add( tmp2 ); + } + } + + // cout << "before leaf create" << endl; + ssgLeaf *leaf = new ssgVtxTable ( ty, vl, nl, tl, cl ); + // cout << "after leaf create" << endl; + + // lookup the state record + // cout << "looking up material = " << endl; + // cout << material << endl; + // cout << "'" << endl; + + leaf->setState( state ); + + if ( calc_lights ) { + if ( coverage > 0.0 ) { + if ( coverage < 10000.0 ) { + SG_LOG(SG_INPUT, SG_ALERT, "Light coverage is " + << coverage << ", pushing up to 10000"); + coverage = 10000; + } + gen_random_surface_points(leaf, lights, coverage); + } + } + + return leaf; +} + + +// Load an Binary obj file +ssgBranch *fgBinObjLoad( const string& path, FGTileEntry *t, + ssgVertexArray *lights, const bool is_base) +{ + int i; + + SGBinObject obj; + bool result = obj.read_bin( path ); + + if ( !result ) { + return NULL; + } + + // cout << "fans size = " << obj.get_fans_v().size() + // << " fan_mats size = " << obj.get_fan_materials().size() << endl; + + ssgBranch *object = new ssgBranch(); + object->setName( (char *)path.c_str() ); + + if ( is_base && t != NULL ) { + // reference point (center offset/bounding sphere) + t->center = obj.get_gbs_center(); + t->bounding_radius = obj.get_gbs_radius(); + } + + point_list nodes = obj.get_wgs84_nodes(); + point_list colors = obj.get_colors(); + point_list normals = obj.get_normals(); + point_list texcoords = obj.get_texcoords(); + + string material; + int_list vertex_index; + int_list tex_index; + + // generate points + string_list pt_materials = obj.get_pt_materials(); + group_list pts_v = obj.get_pts_v(); + for ( i = 0; i < (int)pts_v.size(); ++i ) { + cout << "pts_v.size() = " << pts_v.size() << endl; + material = pt_materials[i]; + vertex_index = pts_v[i]; + tex_index.clear(); + ssgLeaf *leaf = gen_leaf( path, GL_POINTS, material, + nodes, normals, texcoords, + vertex_index, tex_index, + false, lights ); + + object->addKid( leaf ); + } + + // generate triangles + string_list tri_materials = obj.get_tri_materials(); + group_list tris_v = obj.get_tris_v(); + group_list tris_tc = obj.get_tris_tc(); + for ( i = 0; i < (int)tris_v.size(); ++i ) { + material = tri_materials[i]; + vertex_index = tris_v[i]; + tex_index = tris_tc[i]; + ssgLeaf *leaf = gen_leaf( path, GL_TRIANGLES, material, + nodes, normals, texcoords, + vertex_index, tex_index, + is_base, lights ); + + object->addKid( leaf ); + } + + // generate strips + string_list strip_materials = obj.get_strip_materials(); + group_list strips_v = obj.get_strips_v(); + group_list strips_tc = obj.get_strips_tc(); + for ( i = 0; i < (int)strips_v.size(); ++i ) { + material = strip_materials[i]; + vertex_index = strips_v[i]; + tex_index = strips_tc[i]; + ssgLeaf *leaf = gen_leaf( path, GL_TRIANGLE_STRIP, material, + nodes, normals, texcoords, + vertex_index, tex_index, + is_base, lights ); + + object->addKid( leaf ); + } + + // generate fans + string_list fan_materials = obj.get_fan_materials(); + group_list fans_v = obj.get_fans_v(); + group_list fans_tc = obj.get_fans_tc(); + for ( i = 0; i < (int)fans_v.size(); ++i ) { + material = fan_materials[i]; + vertex_index = fans_v[i]; + tex_index = fans_tc[i]; + ssgLeaf *leaf = gen_leaf( path, GL_TRIANGLE_FAN, material, + nodes, normals, texcoords, + vertex_index, tex_index, + is_base, lights ); + + object->addKid( leaf ); + } + + return object; +}