renderer beta

utils/utils.py

@@ -23,3 +23,15 @@ class Accumulator():
 
     def reset(self):
         self.dict = dict()
+
+
+
+def mask_faces(F, mask):
+    F_mask = np.take(mask, F.reshape(-1), axis=0)
+    F_mask = F_mask.reshape((-1, 3)).sum(axis=1) == 3
+
+    V_ind = np.zeros(mask.shape, dtype=np.int32)
+    V_ind[mask] = np.arange(mask.sum())
+    F_new = np.take(V_ind, F[F_mask, :].reshape(-1), axis=0).reshape((-1, 3))
+
+    return F_new