diff --git a/DynmapCore/src/main/java/org/dynmap/modsupport/impl/PatchBlockModelImpl.java b/DynmapCore/src/main/java/org/dynmap/modsupport/impl/PatchBlockModelImpl.java
index 80f26e16..b94a4e5f 100644
--- a/DynmapCore/src/main/java/org/dynmap/modsupport/impl/PatchBlockModelImpl.java
+++ b/DynmapCore/src/main/java/org/dynmap/modsupport/impl/PatchBlockModelImpl.java
@@ -45,13 +45,22 @@ public class PatchBlockModelImpl extends BlockModelImpl implements PatchBlockMod
         patches.add(pi);
         return pi;
     }
-
+    
     @Override
+    @Deprecated
     public String addPatch(double x0, double y0, double z0, double xu, double yu,
-            double zu, double xv, double yv, double zv, SideVisible sidevis) {
-        return addPatch(x0, y0, z0, xu, yu, zu, xv, yv, zv, 0.0, 1.0, 0.0, 0.0, 1.0, 1.0, sidevis);
+            double zu, double xv, double yv, double zv, double umin,
+            double umax, double vmin, double vmax, double uplusvmax,
+            SideVisible sidevis) {
+        return addPatch(x0, y0, z0, xu, yu, zu, xv, yv, zv, umin, umax, vmin, vmin, vmax, ((uplusvmax - umax) < vmax) ? uplusvmax - umax : vmax, sidevis);
     }
 
+	@Override
+	public String addPatch(double x0, double y0, double z0, double xu, double yu, double zu, double xv, double yv,
+			double zv, SideVisible sidevis) {
+        return addPatch(x0, y0, z0, xu, yu, zu, xv, yv, zv, 0.0, 1.0, 0.0, 0.0, 1.0, 1.0, sidevis);
+	}
+
     @Override
     public String addPatch(double x0, double y0, double z0, double xu, double yu,
             double zu, double xv, double yv, double zv) {
diff --git a/DynmapCoreAPI/src/main/java/org/dynmap/modsupport/PatchBlockModel.java b/DynmapCoreAPI/src/main/java/org/dynmap/modsupport/PatchBlockModel.java
index 38aa6946..af967a7c 100644
--- a/DynmapCoreAPI/src/main/java/org/dynmap/modsupport/PatchBlockModel.java
+++ b/DynmapCoreAPI/src/main/java/org/dynmap/modsupport/PatchBlockModel.java
@@ -6,6 +6,36 @@ import org.dynmap.renderer.RenderPatchFactory.SideVisible;
  * Patch block model
  */
 public interface PatchBlockModel extends BlockModel {
+    /**
+     * Add patch with given attributes.
+     * 
+     * Definition is a 2D parallelogram surface, with origin &lt;x0,y0,z0&gt; within the block, and defined by two edge vectors -
+     * one with and end point of &lt;xu,yu,zu&gt;, and a second with an end point of &lt;xv,yv,zv&gt;.  The patch is
+     * defined within the unit vector range umin to umax (parallel to the U vecotr) and vmin to vmax
+     * (parallel to the V vector).
+     * The surface can be visible via one side (SideVisible.TOP, SideVisible.BOTTOM) or both sides (SideVisible.BOTH).
+     * 
+     * @param x0 - X coordinate of origin of patch
+     * @param y0 - Y coordinate of origin of patch
+     * @param z0 - Z coordinate of origin of patch
+     * @param xu - X coordinate of end of U vector
+     * @param yu - Y coordinate of end of U vector
+     * @param zu - Z coordinate of end of U vector
+     * @param xv - X coordinate of end of V vector
+     * @param yv - Y coordinate of end of V vector
+     * @param zv - Z coordinate of end of V vector
+     * @param umin - lower bound for visibility along U vector (use 0.0 by default)
+     * @param umax - upper bound for visibility along U vector (use 1.0 by default)
+     * @param vmin - lower bound for visibility along V vector (use 0.0 by default)
+     * @param vmax - upper bound for visibility along V vector (use 1.0 by default)
+     * @param uplusvmax - upper bound for visibility for U+V (use 100.0 by default: &lt;=1.0 for triangle)
+     * @param sidevis - Controls which sides of the surface are visible (U cross V defines normal - TOP is from that side, BOTTOM is opposite side)
+     * @return patch ID
+     */
+    @Deprecated
+    public String addPatch(double x0, double y0, double z0, double xu,
+            double yu, double zu, double xv, double yv, double zv, double umin,
+            double umax, double vmin, double vmax, double uplusvmax, SideVisible sidevis);
     /**
      * Add patch with given attributes.
      *