From: Ash Tyndall <git@atyndall.net>
Date: Fri, 21 Oct 2011 02:55:47 +0000 (+0800)
Subject: (no commit message)
X-Git-Url: https://git.ucc.asn.au/?a=commitdiff_plain;h=ea48dd7a038f3648d49808c3f9444ad6f636ba93;p=atyndall%2Fcits2231.git

---

diff --git a/globals.c b/globals.c
index 210dee4..374d8b3 100644
--- a/globals.c
+++ b/globals.c
@@ -82,7 +82,7 @@ GLfloat specular0[]={1.0, 0.0, 0.0, 1.0};
 GLfloat emission0[] = {0.0, 0.3, 0.3, 1.0};
 
 GLfloat direction0[] = {0.0, 0.0, 0.0};
-GLfloat light0_pos[] ={10.0, 10.0, 0,0, 0.5};
+GLfloat light0_pos[] ={1.0, 1.0, 0,0, 0.5};
 
 GLfloat shine = 100.0;
 
diff --git a/scene.c b/scene.c
index c024bf1..a529c62 100644
--- a/scene.c
+++ b/scene.c
@@ -262,6 +262,13 @@ void motion(int x, int y) {
     starty = y;
     glutPostRedisplay();
   }
+  if (lightMoving) {
+    lightAngle += (x - lightStartX)/40.0;
+    lightHeight += (lightStartY - y)/20.0;
+    lightStartX = x;
+    lightStartY = y;
+    glutPostRedisplay();
+  }
 }
 
 /**
@@ -292,17 +299,27 @@ void display() {
   glLoadIdentity();
 
   gluLookAt(
-    0.0,  0.0,  5.0 + zoomFactor,  /* eye is at (x,y,z) */
+    0.0,  0.0,  5.0 + (zoomFactor*0.2),  /* eye is at (x,y,z) */
     0.0,  0.0,  0.0,  /* center is at (x,y,z) */
     0.0,  1.0,  0.0   /* up is in postivie Y direction */
     );
 
   glRotatef(75.0, 1.0, 0.0, 0.0);
 
+  /* Reposition the light source. */
+  lightPosition[0] = 12*cos(lightAngle);
+  lightPosition[1] = lightHeight;
+  lightPosition[2] = 12*sin(lightAngle);
+  lightPosition[3] = 0.0;
+
+
+    //glRotatef(angle, 0.0, 1.0, 0.0);
+   // glRotatef(angle2, 1.0, 0.0, 0.0);
+
   glPushMatrix();
 
     /* Perform scene rotations based on user mouse/keyboard input. */
-    glRotatef(rotateFactor, 0.0, 0.0, 1.0);
+    glRotatef(rotateFactor*0.2, 0.0, 1.0, 0.0);
     //glTranslatef(camx, camy, camz);
     //glRotatef(rot, 1.0, 0.0, 0.0);