diff --git a/core/src/processing/core/PShape.java b/core/src/processing/core/PShape.java
index ffd4926e4..07a5a6890 100644
--- a/core/src/processing/core/PShape.java
+++ b/core/src/processing/core/PShape.java
@@ -1462,6 +1462,13 @@ public class PShape implements PConstants {
   }
   
   
+  public void setVertex(int index, PVector vec) {
+    vertices[index][X] = vec.x;
+    vertices[index][Y] = vec.y;
+    vertices[index][Z] = vec.z;    
+  }
+  
+  
   public PVector getNormal(int index) {
     return getNormal(index, null);
   }
diff --git a/core/src/processing/opengl/PShapeOpenGL.java b/core/src/processing/opengl/PShapeOpenGL.java
index cd288c48d..cf7137859 100644
--- a/core/src/processing/opengl/PShapeOpenGL.java
+++ b/core/src/processing/opengl/PShapeOpenGL.java
@@ -2007,6 +2007,14 @@ public class PShapeOpenGL extends PShape {
   }
   
   
+  public void setVertex(int index, PVector vec) {
+    inGeo.vertices[3 * index + 0] = vec.x;
+    inGeo.vertices[3 * index + 1] = vec.y;
+    inGeo.vertices[3 * index + 2] = vec.z;
+    markForTessellation();    
+  }
+  
+  
   public PVector getNormal(int index, PVector vec) {
     if (vec == null) {
       vec = new PVector();