X-Git-Url: https://git.ucc.asn.au/?p=atyndall%2Fcits2231.git;a=blobdiff_plain;f=scene.c;h=b9d9c0733d0009ecdc68f3f7135cf80b97b2e9c9;hp=4e4c5f5e56a9b982581f3e8668feb1369f77a737;hb=7799fe040a5e1c58d43d3d79cf30b282cc5c7096;hpb=5fb3d584d42d4502a5d0854fc6d6c9c4be665aa8

diff --git a/scene.c b/scene.c
index 4e4c5f5..b9d9c07 100644
--- a/scene.c
+++ b/scene.c
@@ -281,11 +281,18 @@ 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;
+  if (lightMoving0) {
+    lightAngle0 += (x - lightStartX0)/40.0;
+    lightHeight0 += (lightStartY0 - y)/20.0;
+    lightStartX0 = x;
+    lightStartY0 = y;
+    glutPostRedisplay();
+  }
+  if (lightMoving1) {
+    lightAngle1 += (x - lightStartX1)/40.0;
+    lightHeight1 += (lightStartY1 - y)/20.0;
+    lightStartX1 = x;
+    lightStartY1 = y;
     glutPostRedisplay();
   }
 }
@@ -311,25 +318,31 @@ void display() {
     75.0,
     aspect,
     0.1,
-    200
+    300
     );
 
   glMatrixMode(GL_MODELVIEW);
   glLoadIdentity();
 
   gluLookAt(
-    0.0,  0.0,  5.0 + (zoom*zoomFactor),  /* eye is at (x,y,z) */
+    0.0,  0.0,  15.0 + (zoom*zoomFactor),  /* 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 */
+    0.0,  10.0,  0.0   /* up is in postivie Y direction */
     );
 
-  glRotatef(50.0, 1.0, 0.0, 0.0);
+  glRotatef(40.0, 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;
+  /* Reposition the light source 0. */
+  lightPosition0[0] = 12*cos(lightAngle0);
+  lightPosition0[1] = lightHeight0;
+  lightPosition0[2] = 12*sin(lightAngle0);
+  lightPosition0[3] = 0.0;
+
+  /* Reposition the light source 1. */
+  lightPosition1[0] = 12*cos(lightAngle1);
+  lightPosition1[1] = lightHeight1;
+  lightPosition1[2] = 12*sin(lightAngle1);
+  lightPosition1[3] = 0.0;
 
   glPushMatrix();
 
@@ -338,17 +351,16 @@ void display() {
     glTranslatef(camx, camy, camz);
     glRotatef(keyrot, 1.0, 0.0, 0.0);
 
-    glLightfv(GL_LIGHT0, GL_POSITION, lightPosition);
+    glLightfv(GL_LIGHT0, GL_POSITION, lightPosition0);
+    glLightfv(GL_LIGHT1, GL_POSITION, lightPosition1);
 
     drawFloor();
-
-    drawLine();
     
     // Draw teapot for a test object
     glPushMatrix();
       glTranslatef(0.0, 0.5, 0.0); // **NOTE: Teapot currently does not rest on surface
       glColor3f(0.0, 0.0, 0.0);
-      glFrontFace(GL_CW);
+      glFrontFace(GL_CW); // The teapot does not obey the right-hand rule
       glutSolidTeapot(1);
       glFrontFace(GL_CCW);
     glPopMatrix();
@@ -356,12 +368,23 @@ void display() {
     // Draw a white ball over the light source
     glPushMatrix();
       glDisable(GL_LIGHTING);
-      glColor3f(1.0, 1.0, 0.0);
-      glTranslatef(lightPosition[0], lightPosition[1], lightPosition[2]);
-      glutSolidSphere(1.0, 50, 50);
+      glColor3f(1.0, 1.0, 1.0);
+      glTranslatef(lightPosition0[0], lightPosition0[1], lightPosition0[2]);
+      glutSolidSphere(0.5, 50, 50);
       glEnable(GL_LIGHTING);
     glPopMatrix();
 
+    // Draw a white ball over the light source
+    glPushMatrix();
+      glDisable(GL_LIGHTING);
+      glColor3f(1.0, 1.0, 1.0);
+      glTranslatef(lightPosition1[0], lightPosition1[1], lightPosition1[2]);
+      glutSolidSphere(0.5, 50, 50);
+      glEnable(GL_LIGHTING);
+    glPopMatrix();
+
+    drawAxisLines();
+
   glPopMatrix();
 
   glutSwapBuffers();
@@ -378,15 +401,23 @@ void init() {
 
   glLightf(GL_LIGHT0, GL_SPOT_CUTOFF, 90.0);
 
+  glLightfv(GL_LIGHT1, GL_AMBIENT, ambient1);
+  glLightfv(GL_LIGHT1, GL_DIFFUSE, diffuse1);
+  glLightfv(GL_LIGHT1, GL_SPECULAR, specular1);
+  glLightfv(GL_LIGHT1, GL_SPOT_DIRECTION, direction1);
+
+  glLightf(GL_LIGHT1, GL_SPOT_CUTOFF, 90.0);
+
   glLightModelfv(GL_LIGHT_MODEL_AMBIENT, glightmodel);
 
   glMaterialfv(GL_FRONT, GL_AMBIENT, ambient);
   glMaterialfv(GL_FRONT, GL_DIFFUSE, diffuse);
   glMaterialfv(GL_FRONT, GL_SPECULAR, specular);
-  glMaterialfv(GL_FRONT, GL_EMISSION, emission0);
+  glMaterialfv(GL_FRONT, GL_EMISSION, emission);
   glMaterialf(GL_FRONT, GL_SHININESS, shine);
 
   glEnable(GL_LIGHT0);
+  //glEnable(GL_LIGHT1);
   glEnable(GL_LIGHTING);
 }
 
@@ -422,7 +453,7 @@ int main(int argc, char **argv) {
   glEnable(GL_DEPTH_TEST); // Enables Depth Testing
   glDepthFunc(GL_LEQUAL);  // the type
   glEnable(GL_TEXTURE_2D);
-  glEnable(GL_CULL_FACE);
+  //glEnable(GL_CULL_FACE);
   glEnable(GL_NORMALIZE);
   glLineWidth(2.0);