Work on better texture coordinate handling with the ability to scale textures

via a parameter in the materials file, while having the textures scroll
smoothly at any scaling.

diff --git a/src/Objects/obj.cxx b/src/Objects/obj.cxx
index 523e6414a531bb5bf4c464a05de7deeaef0e8142..06e5d1de750174d7cc68ba917923749b23c054dd 100644 (file)
--- a/src/Objects/obj.cxx
+++ b/src/Objects/obj.cxx
@@ -270,6 +270,7 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t) {
     point_list nodes;
     Point3D node;
     Point3D center;
+    double scenery_version = 0.0;
     double tex_width = 1000.0, tex_height = 1000.0;
     bool shared_done = false;
     int_list fan_vertices;
@@ -329,7 +330,11 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t) {
 
            in >> token;
 
-           if ( token == "gbs" ) {
+           if ( token == "version" ) {
+               // read scenery versions number
+               in >> scenery_version;
+               // cout << "scenery_version = " << scenery_version << endl;
+           } else if ( token == "gbs" ) {
                // reference point (center offset)
                in >> t->center >> t->bounding_radius;
                center = t->center;
@@ -373,7 +378,8 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t) {
                    }
                    for ( i = 0; i < vtcount; ++i ) {
                        sgSetVec2( t->tclist[i],
-                                  tex_coords[i][0], tex_coords[i][1] );
+                                  tex_coords[i][0],
+                                  tex_coords[i][1] );
                    }
                }
 
@@ -576,7 +582,7 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t) {
 
                if ( n4 > 0 ) {
                    fragment.add_face(n3, n2, n4);
-
+                   
                    if ( shading ) {
                        // Shading model is "GL_SMOOTH"
                        // MAT3_SCALE_VEC(normal, normals[n4], scale);
@@ -611,6 +617,10 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t) {
                if ( in.get( c ) && c == '/' ) {
                    in >> tex;
                    fan_tex_coords.push_back( tex );
+                   if ( scenery_version >= 0.4 ) {
+                       t->tclist[tex][0] *= (1000.0 / tex_width);
+                       t->tclist[tex][1] *= (1000.0 / tex_height);
+                   }
                    pp.setx( tex_coords[tex][0] * (1000.0 / tex_width) );
                    pp.sety( tex_coords[tex][1] * (1000.0 / tex_height) );
                } else {
@@ -626,6 +636,10 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t) {
                if ( in.get( c ) && c == '/' ) {
                    in >> tex;
                    fan_tex_coords.push_back( tex );
+                   if ( scenery_version >= 0.4 ) {
+                       t->tclist[tex][0] *= (1000.0 / tex_width);
+                       t->tclist[tex][1] *= (1000.0 / tex_height);
+                   }
                    pp.setx( tex_coords[tex][0] * (1000.0 / tex_width) );
                    pp.sety( tex_coords[tex][1] * (1000.0 / tex_height) );
                } else {
@@ -659,6 +673,10 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t) {
                    if ( in.get( c ) && c == '/' ) {
                        in >> tex;
                        fan_tex_coords.push_back( tex );
+                       if ( scenery_version >= 0.4 ) {
+                           t->tclist[tex][0] *= (1000.0 / tex_width);
+                           t->tclist[tex][1] *= (1000.0 / tex_height);
+                       }
                        pp.setx( tex_coords[tex][0] * (1000.0 / tex_width) );
                        pp.sety( tex_coords[tex][1] * (1000.0 / tex_height) );
                    } else {