skyglobe

1 files changed, 25 insertions, 17 deletions

diff --git a/src/model/vertexarray.cc b/src/model/vertexarray.cc
index da9c3d2..b0da6ab 100644
--- a/src/model/vertexarray.cc
+++ b/src/model/vertexarray.cc
@@ -75,34 +75,18 @@ void VertexArray::add_sphere()
 	math::Vector3f v;
 	math::Vector3f n;
 	math::Vector3f tex;
-
 	int count;
 
-	//float h = (float) (SPHERESEGMENTS-1) / 2 -1;
+	// add sphere
 	for (int j=0; j < (SPHERESEGMENTS-1) / 2; j++) {
 
 		float r = sintable[j];
 		float r1 = sintable[j+1];
 
-/*		v.assign(r, 0, costable[j]);
-		n = v;
-		n.normalize();
-		tex.assign(1, (float)(SPHERESEGMENTS-1-j) / (float)(SPHERESEGMENTS-1), 0);
-		add_vertex(v, n, white, tex);
-
-		v = math::Vector3f(r1, 0, costable[j+1]);
-		n = v;
-		n.normalize();
-		tex.assign(1, (float) (SPHERESEGMENTS-2-j) / (float)(SPHERESEGMENTS-1), 0 );
-		add_vertex(v, n, white, tex);
-
-		count =2;
-*/
 		for (int i = 0; i < SPHERESEGMENTS; i++) {
 			v = math::Vector3f(r*costable[i], r*sintable[i], costable[j]);
 			n = v;
 			n.normalize();
-			//tex.assign((float)i/(float)(SPHERESEGMENTS), (float) (j) / h, 0);
 			tex.assign((float)i/(float)(SPHERESEGMENTS-1), -costable[j]/2 + 0.5f , 0);
 			add_vertex(v, n, white, tex);
 			
@@ -116,6 +100,30 @@ void VertexArray::add_sphere()
 		
 	}
 
+	// add inside-out sphere
+	for (int j=0; j < (SPHERESEGMENTS-1) / 2; j++) {
+
+		float r = sintable[j];
+		float r1 = sintable[j+1];
+
+		
+		for (int i = SPHERESEGMENTS -1 ; i >= 0; i--) {
+			v = math::Vector3f(r*costable[i], r*sintable[i], costable[j]);
+			n = v;
+			n.normalize();
+			tex.assign(1-(float)i/(float)(SPHERESEGMENTS-1), -costable[j]/2 + 0.5f , 0);
+			add_vertex(v, n, white, tex);
+			
+			v = math::Vector3f(r1*costable[i], r1*sintable[i], costable[j+1]);
+			n = v;
+			n.normalize();			
+			tex.assign(1-(float)i/(float)(SPHERESEGMENTS-1), -costable[j+1]/2 + 0.5f, 0);
+			add_vertex(v, n, white, tex);
+			count +=2;
+		}
+		
+	}
+
 	delete[] sintable;
 	delete[] costable;
 }