From fb9347b2e609c3f8458d5c37f65b3cb3154ea18e Mon Sep 17 00:00:00 2001 From: curt Date: Mon, 9 Feb 1998 21:30:18 +0000 Subject: [PATCH] Fixed a nagging problem with terrain tiles not "quite" matching up perfectly. --- Scenery/obj.c | 78 ++++++++++++++++++++--------------------------- Scenery/tilemgr.c | 24 ++++++++++++--- 2 files changed, 52 insertions(+), 50 deletions(-) diff --git a/Scenery/obj.c b/Scenery/obj.c index b7e5c83bc..f11c38736 100644 --- a/Scenery/obj.c +++ b/Scenery/obj.c @@ -71,7 +71,7 @@ GLint fgObjLoad(char *path, struct fgCartesianPoint *ref, double *radius) { GLint tile; FILE *f; int first, ncount, vncount, n1, n2, n3, n4; - static int use_vertex_norms = 0; + static int use_per_vertex_norms = 1; int winding; int last1, last2, odd; @@ -119,14 +119,6 @@ GLint fgObjLoad(char *path, struct fgCartesianPoint *ref, double *radius) { if ( z < zmin ) zmin = z; if ( z > zmax ) zmax = z; - /* reference point is the "center" */ - /* this is overkill to calculate it everytime we get a - * new node, but it's hard to know with the .obj - * format when we are done with vertices */ - ref->x = (xmin + xmax) / 2; - ref->y = (ymin + ymax) / 2; - ref->z = (zmin + zmax) / 2; - ncount++; } else { fgPrintf( FG_TERRAIN, FG_EXIT, @@ -187,21 +179,18 @@ GLint fgObjLoad(char *path, struct fgCartesianPoint *ref, double *radius) { scale = 1.0; } - if ( use_vertex_norms ) { + if ( use_per_vertex_norms ) { MAT3_SCALE_VEC(normal, normals[n1], scale); xglNormal3dv(normal); - xglVertex3d(nodes[n1][0] - ref->x, nodes[n1][1] - ref->y, - nodes[n1][2] - ref->z); + xglVertex3d(nodes[n1][0], nodes[n1][1], nodes[n1][2]); MAT3_SCALE_VEC(normal, normals[n2], scale); xglNormal3dv(normal); - xglVertex3d(nodes[n2][0] - ref->x, nodes[n2][1] - ref->y, - nodes[n2][2] - ref->z); + xglVertex3d(nodes[n2][0], nodes[n2][1], nodes[n2][2]); MAT3_SCALE_VEC(normal, normals[n3], scale); xglNormal3dv(normal); - xglVertex3d(nodes[n3][0] - ref->x, nodes[n3][1] - ref->y, - nodes[n3][2] - ref->z); + xglVertex3d(nodes[n3][0], nodes[n3][1], nodes[n3][2]); } else { if ( odd ) { calc_normal(nodes[n1], nodes[n2], nodes[n3], approx_normal); @@ -211,12 +200,9 @@ GLint fgObjLoad(char *path, struct fgCartesianPoint *ref, double *radius) { MAT3_SCALE_VEC(normal, approx_normal, scale); xglNormal3dv(normal); - xglVertex3d(nodes[n1][0] - ref->x, nodes[n1][1] - ref->y, - nodes[n1][2] - ref->z); - xglVertex3d(nodes[n2][0] - ref->x, nodes[n2][1] - ref->y, - nodes[n2][2] - ref->z); - xglVertex3d(nodes[n3][0] - ref->x, nodes[n3][1] - ref->y, - nodes[n3][2] - ref->z); + xglVertex3d(nodes[n1][0], nodes[n1][1], nodes[n1][2]); + xglVertex3d(nodes[n2][0], nodes[n2][1], nodes[n2][2]); + xglVertex3d(nodes[n3][0], nodes[n3][1], nodes[n3][2]); } odd = 1 - odd; @@ -224,15 +210,14 @@ GLint fgObjLoad(char *path, struct fgCartesianPoint *ref, double *radius) { last2 = n3; if ( n4 > 0 ) { - if ( use_vertex_norms ) { + if ( use_per_vertex_norms ) { MAT3_SCALE_VEC(normal, normals[n4], scale); } else { calc_normal(nodes[n3], nodes[n2], nodes[n4], approx_normal); MAT3_SCALE_VEC(normal, approx_normal, scale); } xglNormal3dv(normal); - xglVertex3d(nodes[n4][0] - ref->x, nodes[n4][1] - ref->y, - nodes[n4][2] - ref->z); + xglVertex3d(nodes[n4][0], nodes[n4][1], nodes[n4][2]); odd = 1 - odd; last1 = n3; @@ -254,16 +239,13 @@ GLint fgObjLoad(char *path, struct fgCartesianPoint *ref, double *radius) { sscanf(line, "f %d %d %d\n", &n1, &n2, &n3); xglNormal3d(normals[n1][0], normals[n1][1], normals[n1][2]); - xglVertex3d(nodes[n1][0] - ref->x, nodes[n1][1] - ref->y, - nodes[n1][2] - ref->z); + xglVertex3d(nodes[n1][0], nodes[n1][1], nodes[n1][2]); xglNormal3d(normals[n2][0], normals[n2][1], normals[n2][2]); - xglVertex3d(nodes[n2][0] - ref->x, nodes[n2][1] - ref->y, - nodes[n2][2] - ref->z); + xglVertex3d(nodes[n2][0], nodes[n2][1], nodes[n2][2]); xglNormal3d(normals[n3][0], normals[n3][1], normals[n3][2]); - xglVertex3d(nodes[n3][0] - ref->x, nodes[n3][1] - ref->y, - nodes[n3][2] - ref->z); + xglVertex3d(nodes[n3][0], nodes[n3][1], nodes[n3][2]); } else if ( line[0] == 'q' ) { /* continue a triangle strip */ n1 = n2 = 0; @@ -273,7 +255,7 @@ GLint fgObjLoad(char *path, struct fgCartesianPoint *ref, double *radius) { sscanf(line, "q %d %d\n", &n1, &n2); /* fgPrintf( FG_TERRAIN, FG_DEBUG, "read %d %d\n", n1, n2); */ - if ( use_vertex_norms ) { + if ( use_per_vertex_norms ) { MAT3_SCALE_VEC(normal, normals[n1], scale); xglNormal3dv(normal); } else { @@ -288,8 +270,7 @@ GLint fgObjLoad(char *path, struct fgCartesianPoint *ref, double *radius) { xglNormal3dv(normal); } - xglVertex3d(nodes[n1][0] - ref->x, nodes[n1][1] - ref->y, - nodes[n1][2] - ref->z); + xglVertex3d(nodes[n1][0], nodes[n1][1], nodes[n1][2]); odd = 1 - odd; last1 = last2; @@ -298,7 +279,7 @@ GLint fgObjLoad(char *path, struct fgCartesianPoint *ref, double *radius) { if ( n2 > 0 ) { /* fgPrintf( FG_TERRAIN, FG_DEBUG, " (cont)\n"); */ - if ( use_vertex_norms ) { + if ( use_per_vertex_norms ) { MAT3_SCALE_VEC(normal, normals[n2], scale); xglNormal3dv(normal); } else { @@ -313,8 +294,7 @@ GLint fgObjLoad(char *path, struct fgCartesianPoint *ref, double *radius) { xglNormal3dv(normal); } - xglVertex3d(nodes[n2][0] - ref->x, nodes[n2][1] - ref->y, - nodes[n2][2] - ref->z); + xglVertex3d(nodes[n2][0], nodes[n2][1], nodes[n2][2]); odd = 1 -odd; last1 = last2; @@ -333,12 +313,12 @@ GLint fgObjLoad(char *path, struct fgCartesianPoint *ref, double *radius) { xglBegin(GL_LINES); xglColor3f(0.0, 0.0, 0.0); for ( i = 0; i < ncount; i++ ) { - xglVertex3d(nodes[i][0] - ref->x, - nodes[i][1] - ref->y, - nodes[i][2] - ref->z); - xglVertex3d(nodes[i][0] - ref->x + 500*normals[i][0], - nodes[i][1] - ref->y + 500*normals[i][1], - nodes[i][2] - ref->z + 500*normals[i][2]); + xglVertex3d(nodes[i][0], + nodes[i][1] , + nodes[i][2]); + xglVertex3d(nodes[i][0] + 500*normals[i][0], + nodes[i][1] + 500*normals[i][1], + nodes[i][2] + 500*normals[i][2]); } xglEnd(); */ @@ -349,14 +329,22 @@ GLint fgObjLoad(char *path, struct fgCartesianPoint *ref, double *radius) { fclose(f); + /* reference point is the "center" */ + ref->x = (xmin + xmax) / 2.0; + ref->y = (ymin + ymax) / 2.0; + ref->z = (zmin + zmax) / 2.0; + return(tile); } /* $Log$ -/* Revision 1.23 1998/02/09 15:07:52 curt -/* Minor tweaks. +/* Revision 1.24 1998/02/09 21:30:18 curt +/* Fixed a nagging problem with terrain tiles not "quite" matching up perfectly. /* + * Revision 1.23 1998/02/09 15:07:52 curt + * Minor tweaks. + * * Revision 1.22 1998/02/01 03:39:54 curt * Minor tweaks. * diff --git a/Scenery/tilemgr.c b/Scenery/tilemgr.c index 8837eb7c6..cba507a96 100644 --- a/Scenery/tilemgr.c +++ b/Scenery/tilemgr.c @@ -177,6 +177,8 @@ void fgTileMgrUpdate( void ) { /* Render the local tiles */ void fgTileMgrRender( void ) { + fgFLIGHT *f; + struct fgBUCKET p; static GLfloat terrain_color[4] = { 0.6, 0.8, 0.4, 1.0 }; static GLfloat terrain_ambient[4]; static GLfloat terrain_diffuse[4]; @@ -185,6 +187,8 @@ void fgTileMgrRender( void ) { int i; int index; + f = current_aircraft.flight; + for ( i = 0; i < 4; i++ ) { terrain_ambient[i] = terrain_color[i] * 0.5; terrain_diffuse[i] = terrain_color[i]; @@ -193,6 +197,11 @@ void fgTileMgrRender( void ) { xglMaterialfv(GL_FRONT, GL_AMBIENT, terrain_ambient); xglMaterialfv(GL_FRONT, GL_DIFFUSE, terrain_diffuse); + /* Find current translation offset */ + fgBucketFind(FG_Longitude * RAD_TO_DEG, FG_Latitude * RAD_TO_DEG, &p); + index = fgTileCacheExists(&p); + fgTileCacheEntryInfo(index, &display_list, &scenery.center ); + for ( i = 0; i < FG_LOCAL_X_Y; i++ ) { index = tiles[i]; /* fgPrintf( FG_TERRAIN, FG_DEBUG, "Index = %d\n", index); */ @@ -200,9 +209,11 @@ void fgTileMgrRender( void ) { if ( display_list >= 0 ) { xglPushMatrix(); - xglTranslatef(local_ref.x - scenery.center.x, + /* xglTranslatef(local_ref.x - scenery.center.x, local_ref.y - scenery.center.y, - local_ref.z - scenery.center.z); + local_ref.z - scenery.center.z); */ + xglTranslatef(-scenery.center.x, -scenery.center.y, + -scenery.center.z); xglCallList(display_list); xglPopMatrix(); } @@ -211,10 +222,13 @@ void fgTileMgrRender( void ) { /* $Log$ -/* Revision 1.13 1998/02/07 15:29:46 curt -/* Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss -/* +/* Revision 1.14 1998/02/09 21:30:19 curt +/* Fixed a nagging problem with terrain tiles not "quite" matching up perfectly. /* + * Revision 1.13 1998/02/07 15:29:46 curt + * Incorporated HUD changes and struct/typedef changes from Charlie Hotchkiss + * + * * Revision 1.12 1998/02/01 03:39:55 curt * Minor tweaks. * -- 2.39.2