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[atyndall/cits2231.git] / scene.c

diff --git a/scene.c b/scene.c
index 954d75c..9fc30e7 100644 (file)
--- a/scene.c
+++ b/scene.c
@@ -123,8 +123,8 @@ GLfloat angle = -150;   /* in degrees */
 GLfloat angle2 = 30;   /* in degrees */\r
 \r
 /* Near and far parameters */\r
-GLfloat near = -100;\r
-GLfloat far = 100;\r
+GLfloat near = -10;\r
+GLfloat far = 10;\r
 \r
 /* Zoom factor for mouse movements */\r
 GLfloat zoomFactor = 1.0;\r
@@ -607,6 +607,24 @@ void drawFloor() {
   drawSquare(0, -floorSize, -floorSize, floorSize, floorSize);\r
 }\r
 \r
+/**\r
+ * Draw x, z axis on floor\r
+ */\r
+void drawLine() {\r
+    glDisable(GL_TEXTURE_2D);\r
+    glEnable(GL_BLEND);\r
+    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);\r
+    glColor4ub( 0.0, 0.0, 0.0, 0.5 );\r
+\r
+    glBegin(GL_LINES);\r
+    glVertex3i( 10.0, 0.1, 10.0);\r
+    glVertex3i( -10.0, 0.1, -10.0);\r
+    glEnd();\r
+\r
+    glDisable(GL_BLEND);\r
+    glEnable(GL_TEXTURE_2D);\r
+}\r
+\r
 /**\r
  * Display function\r
  */\r
@@ -639,6 +657,8 @@ void display() {
 \r
     drawFloor();\r
 \r
+    drawLine();\r
+    \r
     // Draw teapot for a test object\r
     glPushMatrix();\r
       glTranslatef(0.0, 1.0, 0.0); // **NOTE: Teapot does not rest on surface\r