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[grits] / src / gis-opengl.c

diff --git a/src/gis-opengl.c b/src/gis-opengl.c
index bf6086204778f1977cf9177f5a5c980f058f25c8..9a88896eccb5d67e3b2c9da580cf7c684157d5b1 100644 (file)
--- a/src/gis-opengl.c
+++ b/src/gis-opengl.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2009 Andy Spencer <spenceal@rose-hulman.edu>
+ * Copyright (C) 2009-2010 Andy Spencer <andy753421@gmail.com>
  *
  * This program is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -88,7 +88,7 @@ static void _set_visuals(GisOpenGL *self)
 
        float material_ambient[]  = {0.2, 0.2, 0.2, 1.0};
        float material_diffuse[]  = {0.8, 0.8, 0.8, 1.0};
-       float material_specular[] = {0.0, 0.0, 0.0, 1.0};
+       float material_specular[] = {0.1, 0.1, 0.1, 1.0};
        float material_emission[] = {0.0, 0.0, 0.0, 1.0};
        glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT,  material_ambient);
        glMaterialfv(GL_FRONT_AND_BACK, GL_DIFFUSE,  material_diffuse);
@@ -102,12 +102,6 @@ static void _set_visuals(GisOpenGL *self)
        glRotatef(lat, 1, 0, 0);
        glRotatef(-lon, 0, 1, 0);
 
-       /* Misc */
-       gdouble rg   = MAX(0, 1-(elev/20000));
-       gdouble blue = MAX(0, 1-(elev/50000));
-       glClearColor(MIN(0.65,rg), MIN(0.65,rg), MIN(1,blue), 1.0f);
-       glColor4f(1, 1, 1, 1);
-
        glDisable(GL_ALPHA_TEST);
 
        glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
@@ -315,7 +309,8 @@ static gboolean _draw_level(gpointer key, gpointer value, gpointer user_data)
 
        /* Freeze depth buffer and draw transparent objects sorted */
        /* TODO: sorting */
-       glDepthMask(FALSE);
+       //glDepthMask(FALSE);
+       glAlphaFunc(GL_GREATER, 0.1);
        for (cur = level->sorted.next; cur; cur = cur->next, nsorted++)
                _draw_object(self, GIS_OBJECT(cur->data));
 
@@ -481,12 +476,30 @@ static void gis_opengl_render_tile(GisViewer *_self, GisTile *tile)
                gdouble londist = e - w;
                gdouble latdist = n - s;
 
-               gdouble xy[][3] = {
+               gdouble xy[3][2] = {
                        {(lon[0]-w)/londist, 1-(lat[0]-s)/latdist},
                        {(lon[1]-w)/londist, 1-(lat[1]-s)/latdist},
                        {(lon[2]-w)/londist, 1-(lat[2]-s)/latdist},
                };
 
+               //if ((lat[0] == 90 && (xy[0][0] < 0 || xy[0][0] > 1)) ||
+               //    (lat[1] == 90 && (xy[1][0] < 0 || xy[1][0] > 1)) ||
+               //    (lat[2] == 90 && (xy[2][0] < 0 || xy[2][0] > 1)))
+               //      g_message("w,e=%4.f,%4.f   "
+               //                "lat,lon,x,y="
+               //                "%4.1f,%4.0f,%4.2f,%4.2f   "
+               //                "%4.1f,%4.0f,%4.2f,%4.2f   "
+               //                "%4.1f,%4.0f,%4.2f,%4.2f   ",
+               //              w,e,
+               //              lat[0], lon[0], xy[0][0], xy[0][1],
+               //              lat[1], lon[1], xy[1][0], xy[1][1],
+               //              lat[2], lon[2], xy[2][0], xy[2][1]);
+
+               /* Fix poles */
+               if (lat[0] == 90 || lat[0] == -90) xy[0][0] = 0.5;
+               if (lat[1] == 90 || lat[1] == -90) xy[1][0] = 0.5;
+               if (lat[2] == 90 || lat[2] == -90) xy[2][0] = 0.5;
+
                glEnable(GL_TEXTURE_2D);
                glBindTexture(GL_TEXTURE_2D, *(guint*)tile->data);
                glBegin(GL_TRIANGLES);