Changes to properly handle new style tri-strips.

diff --git a/src/Objects/obj.cxx b/src/Objects/obj.cxx
index 118a7dffcedd976a1f9379bf650c695c3a050e97..4d3cdfb17dbc634d8a63b34c62a30a4a54e2b4ed 100644 (file)
--- a/src/Objects/obj.cxx
+++ b/src/Objects/obj.cxx
@@ -266,7 +266,8 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t) {
     int vncount, vtcount;
     int n1 = 0, n2 = 0, n3 = 0, n4 = 0;
     int tex;
-    int last1 = 0, last2 = 0, odd = 0;
+    int last1 = 0, last2 = 0;
+    bool odd = false;
     point_list nodes;
     Point3D node;
     Point3D center;
@@ -513,7 +514,7 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t) {
                // xglBegin(GL_TRIANGLE_STRIP);
                // printf("xglBegin(tristrip) %d %d %d\n", n1, n2, n3);
 
-               odd = 1; 
+               odd = true; 
                // scale = 1.0;
 
                if ( shading ) {
@@ -563,7 +564,7 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t) {
                }
                // printf("some normals, texcoords, and vertices\n");
 
-               odd = 1 - odd;
+               odd = !odd;
                last1 = n2;
                last2 = n3;
 
@@ -597,7 +598,7 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t) {
                    // xglTexCoord2f(pp.lon(), pp.lat());
                    // xglVertex3dv(nodes[n4].get_n());         
                    
-                   odd = 1 - odd;
+                   odd = !odd;
                    last1 = n3;
                    last2 = n4;
                    // printf("a normal, texcoord, and vertex (4th)\n");
@@ -608,6 +609,7 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t) {
 
                fan_vertices.clear();
                fan_tex_coords.clear();
+               odd = true;
 
                // xglBegin(GL_TRIANGLE_FAN);
 
@@ -698,7 +700,14 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t) {
                    // xglTexCoord2f(pp.x(), pp.y());
                    // xglVertex3dv(nodes[n3].get_n());
 
-                   fragment.add_face(n1, n2, n3);
+                   if ( odd ) {
+                       fragment.add_face(n1, n2, n3);
+                   } else {
+                       fragment.add_face(n2, n1, n3);
+                   }
+
+                   odd = !odd;
+                   n1 = n2;
                    n2 = n3;
                }
 
@@ -816,7 +825,7 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t) {
                // xglVertex3dv(nodes[n1].get_n());
                // printf("a normal, texcoord, and vertex (4th)\n");
    
-               odd = 1 - odd;
+               odd = !odd;
                last1 = last2;
                last2 = n1;
 
@@ -850,7 +859,7 @@ ssgBranch *fgObjLoad( const string& path, FGTileEntry *t) {
                    // xglVertex3dv(nodes[n2].get_n());         
                    // printf("a normal, texcoord, and vertex (4th)\n");
 
-                   odd = 1 -odd;
+                   odd = !odd;
                    last1 = last2;
                    last2 = n2;
                }