Edge Watertightness

QTProject/subdivideRegular.tes

@@ -54,11 +54,38 @@ void main()
     vec3 p11 = tcPosition[11];
 
     vec3 newPos= a0*p0+a1*p1+a2*p2+a3*p3+a4*p4+a5*p5+a6*p6+a7*p7+a8*p8+a9*p9+a10*p10+a11*p11;
+
+    if(v == 0){
+        newPos = (a0*p0+a11*p11)
+                   +(a1*p1+a10*p10)
+                   +(a4*p4+a6*p6)
+                   +(a2*p2+a8*p8)
+                   +(a3*p3+a7*p7);
+    }
+    if(u == 0){
+        newPos = (a2*p2+a11*p11)
+                   +(a3*p3+a10*p10)
+                   +(a4*p4+a9*p9)
+                   +(a5*p5+a8*p8)
+                   +(a6*p6+a7*p7);
+    }
+    if(w == 0){
+        newPos = (a0*p0+a10*p10)
+                   +(a3*p3+a6*p6)
+                   +(a1*p1+a9*p9)
+                   +(a5*p5+a4*p4)
+                   +(a2*p2+a7*p7);
+    }
+
+
     if (subdiv == 0) {
         newPos = u * p3 + v * p6 + w * p7;
     }
     vec4 pos = vec4(newPos, 1.0f);
 
+
+
+
     tePatchDistance = gl_TessCoord.xyz;
     teCamPosition = vec4(MV*pos).xyz;
     gl_Position = MVP * pos;