X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=blobdiff_plain;f=scene.c;h=e5d2a172a92a29f7c790b2897f7de19fe30822bd;hp=0841edd9dbc2ae1b0143199c8180500d16bc20a4;hb=2a3932dad3ec48310af0b3c3cbb7685fc6105b03;hpb=741e1b28cd622388927419ba40da12a6e066fae3

diff --git a/scene.c b/scene.c
index 0841edd..e5d2a17 100644
--- a/scene.c
+++ b/scene.c
@@ -132,6 +132,8 @@ GLfloat angle2 = 30;   /* in degrees */
 GLfloat near = -10;
 GLfloat far = 10;
 
+static float zoomFactor = 1.0;
+
 /**
  * Prints out error message when file cannot be read
  * @param fileName Name of file that could not be read
@@ -490,12 +492,15 @@ void windowReshape(int w, int h) {
   glViewport(0, 0, (GLsizei) w, (GLsizei) h);
   glMatrixMode(GL_PROJECTION);
   glLoadIdentity();
+  GLfloat x = 2.0f*(200 + 0.5)/w-1.0;
+  GLfloat y = 2.0f*(200 + 0.5)/h-1.0;
+  glTranslatef(-x,-y,0.0f);
   if (w <= h) 
-    glOrtho(near, far, near*(GLfloat)h/(GLfloat)w,
-             far*(GLfloat)h/(GLfloat)w, near, far);
+    glOrtho(zoomFactor*near, zoomFactor*far, zoomFactor*near*(GLfloat)h/(GLfloat)w,
+             zoomFactor*far*(GLfloat)h/(GLfloat)w, near, far);
   else
-    glOrtho(near*(GLfloat)w/(GLfloat)h,
-             far*(GLfloat)w/(GLfloat)h, near, far, near, far);
+    glOrtho(zoomFactor*near*(GLfloat)w/(GLfloat)h,
+             zoomFactor*far*(GLfloat)w/(GLfloat)h, zoomFactor*near, zoomFactor*far, near, far);
    glMatrixMode(GL_MODELVIEW); 
    glLoadIdentity();
 }
@@ -674,11 +679,17 @@ void init() {
      far   /* Z far */
     );    
 
-  glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, 1);
-  glLightfv(GL_LIGHT0, GL_AMBIENT|GL_SPECULAR|GL_DIFFUSE, lightColor);
-  glLightf(GL_LIGHT0, GL_CONSTANT_ATTENUATION, 0.1);
-  glLightf(GL_LIGHT0, GL_LINEAR_ATTENUATION, 0.05);
-  glEnable(GL_LIGHT0);
+
+GLfloat diffuse0[] = {1.0, 1.0, 1.0, 1.0};
+GLfloat ambient0[] = {1.0, 1.0, 1.0, 1.0};
+GLfloat specular0[] = {1.0, 1.0, 1.0, 1.0};
+GLfloat light0_pos[] ={ 1.0, 2.0, 3,0, 1.0};
+
+glEnable(GL_LIGHT0);
+glLightfv(GL_LIGHT0, GL_POSITION, light0_pos);
+glLightfv(GL_LIGHT0, GL_AMBIENT, ambient0);
+glLightfv(GL_LIGHT0, GL_DIFFUSE, diffuse0);
+glLightfv(GL_LIGHT0, GL_SPECULAR, specular0);
   glEnable(GL_LIGHTING);
 
   glMatrixMode(GL_MODELVIEW);