diff --git a/RenderScript.h b/RenderScript.h
index e7c0274..f01eadd 100644
--- a/RenderScript.h
+++ b/RenderScript.h
@@ -103,19 +103,12 @@
 
 enum RsDataKind {
     RS_KIND_USER,
-    RS_KIND_COLOR,
-    RS_KIND_POSITION,
-    RS_KIND_TEXTURE,
-    RS_KIND_NORMAL,
-    RS_KIND_INDEX,
-    RS_KIND_POINT_SIZE,
 
-    RS_KIND_PIXEL_L,
+    RS_KIND_PIXEL_L = 7,
     RS_KIND_PIXEL_A,
     RS_KIND_PIXEL_LA,
     RS_KIND_PIXEL_RGB,
     RS_KIND_PIXEL_RGBA,
-
 };
 
 enum RsSamplerParam {
diff --git a/java/Fountain/res/raw/fountain.rs b/java/Fountain/res/raw/fountain.rs
index fe2ca33..7573398 100644
--- a/java/Fountain/res/raw/fountain.rs
+++ b/java/Fountain/res/raw/fountain.rs
@@ -40,17 +40,7 @@
     return 1;
 }
 
-// Putting the overloadable attribute on this function breaks rendering
-// appears to be a bug.
-static uchar4 /*__attribute__((overloadable))*/ pack(float r, float g, float b)
-{
-    uchar4 c;
-    c.x = (uchar)(r * 255.f);
-    c.y = (uchar)(g * 255.f);
-    c.z = (uchar)(b * 255.f);
-    c.w = 255;
-    return c;
-}
+#pragma rs export_func(addParticles)
 
 void addParticles(int rate, int x, int y)
 {
@@ -63,10 +53,7 @@
     float rMax = ((float)rate) * 0.005f;
     int size = rsAllocationGetDimX(rsGetAllocation(point));
 
-    //uchar4 c = rsPackColorTo8888(partColor.x, partColor.y, partColor.z);
-    uchar4 c = pack(partColor.x, partColor.y, partColor.z);
-    c.x = 255;
-    c.w = 255;
+    uchar4 c = rsPackColorTo8888(partColor.x, partColor.y, partColor.z);
 
     //rsDebug("color ", ((int *)&c)[0]);
     Point_t * np = &point[newPart];
diff --git a/java/Fountain/res/raw/fountain_bc.bc b/java/Fountain/res/raw/fountain_bc.bc
index d223460..b01098b 100644
--- a/java/Fountain/res/raw/fountain_bc.bc
+++ b/java/Fountain/res/raw/fountain_bc.bc
Binary files differ
diff --git a/java/Fountain/src/com/android/fountain/FountainRS.java b/java/Fountain/src/com/android/fountain/FountainRS.java
index 6f60134..5433597 100644
--- a/java/Fountain/src/com/android/fountain/FountainRS.java
+++ b/java/Fountain/src/com/android/fountain/FountainRS.java
@@ -34,7 +34,7 @@
         mRS = rs;
         mRes = res;
 
-        ScriptField_Point points = new ScriptField_Point(mRS, PART_COUNT);
+        ScriptField_Point_s points = new ScriptField_Point_s(mRS, PART_COUNT);
 
         SimpleMesh.Builder smb = new SimpleMesh.Builder(mRS);
         int vtxSlot = smb.addVertexType(points.getType());
@@ -59,7 +59,7 @@
                 tmpColor.z = mRand.nextFloat();
                 mScript.set_partColor(tmpColor);
             }
-            mScript.invokable_addParticles(rate, x, y);
+            mScript.invoke_addParticles(rate, x, y);
             holdingColor = true;
         } else {
             holdingColor = false;
diff --git a/java/Fountain/src/com/android/fountain/ScriptC_Fountain.java b/java/Fountain/src/com/android/fountain/ScriptC_Fountain.java
index cace1ec..f6bef27 100644
--- a/java/Fountain/src/com/android/fountain/ScriptC_Fountain.java
+++ b/java/Fountain/src/com/android/fountain/ScriptC_Fountain.java
@@ -1,46 +1,77 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
 package com.android.fountain;
 
-import android.content.res.Resources;
 import android.renderscript.*;
+import android.content.res.Resources;
 import android.util.Log;
 
-public class ScriptC_Fountain
-    extends android.renderscript.ScriptC
-{
-    public ScriptC_Fountain(RenderScript rs, Resources resources, boolean isRoot) {
+public class ScriptC_Fountain extends ScriptC {
+    // Constructor
+    public  ScriptC_Fountain(RenderScript rs, Resources resources, boolean isRoot) {
         super(rs, resources, R.raw.fountain_bc, isRoot);
     }
 
+    private final static int mExportVarIdx_partColor = 0;
+    private Float4 mExportVar_partColor;
     public void set_partColor(Float4 v) {
+        mExportVar_partColor = v;
         FieldPacker fp = new FieldPacker(16);
         fp.addF32(v);
-        setVar(0, fp);
+        setVar(mExportVarIdx_partColor, fp);
     }
+
+    public Float4 get_partColor() {
+        return mExportVar_partColor;
+    }
+
+    private final static int mExportVarIdx_partMesh = 1;
+    private SimpleMesh mExportVar_partMesh;
     public void set_partMesh(SimpleMesh v) {
-        setVar(1, v.getID());
+        mExportVar_partMesh = v;
+        int id = 0;
+        if (v != null) id = v.getID();
+        setVar(mExportVarIdx_partMesh, id);
     }
 
-    private ScriptField_Point mField_point;
-    public void bind_point(ScriptField_Point f) {
-        mField_point = f;
-        if (f == null) {
-            bindAllocation(null, 2);
-        } else {
-            bindAllocation(f.getAllocation(), 2);
-        }
-    }
-    public ScriptField_Point get_point() {
-        return mField_point;
+    public SimpleMesh get_partMesh() {
+        return mExportVar_partMesh;
     }
 
-
-    public void invokable_addParticles(int count, int x, int y) {
-        FieldPacker fp = new FieldPacker(12);
-        fp.addI32(count);
-        fp.addI32(x);
-        fp.addI32(y);
-        invokeV(0, fp);
+    private final static int mExportVarIdx_point = 2;
+    private ScriptField_Point_s mExportVar_point;
+    public void bind_point(ScriptField_Point_s v) {
+        mExportVar_point = v;
+        if(v == null) bindAllocation(null, mExportVarIdx_point);
+        else bindAllocation(v.getAllocation(), mExportVarIdx_point);
     }
+
+    public ScriptField_Point_s get_point() {
+        return mExportVar_point;
+    }
+
+    private final static int mExportFuncIdx_addParticles = 0;
+    public void invoke_addParticles(int rate, int x, int y) {
+        FieldPacker addParticles_fp = new FieldPacker(12);
+        addParticles_fp.addI32(rate);
+        addParticles_fp.addI32(x);
+        addParticles_fp.addI32(y);
+        invokeV(mExportFuncIdx_addParticles, addParticles_fp);
+    }
+
 }
 
diff --git a/java/Fountain/src/com/android/fountain/ScriptField_Point.java b/java/Fountain/src/com/android/fountain/ScriptField_Point.java
deleted file mode 100644
index 91db2c6..0000000
--- a/java/Fountain/src/com/android/fountain/ScriptField_Point.java
+++ /dev/null
@@ -1,67 +0,0 @@
-
-package com.android.fountain;
-
-import android.content.res.Resources;
-import android.renderscript.*;
-import android.util.Log;
-
-public class ScriptField_Point
-    extends android.renderscript.Script.FieldBase
-{
-
-    static public class Item {
-        Item() {
-            delta = new Float2();
-            pos = new Float2();
-            color = new Short4();
-        }
-
-        public static final int sizeof = (5*4);
-        Float2 delta;
-        Float2 pos;
-        Short4 color;
-    }
-    private Item mItemArray[];
-
-
-    public ScriptField_Point(RenderScript rs, int count) {
-        // Allocate a pack/unpack buffer
-        mIOBuffer = new FieldPacker(Item.sizeof * count);
-        mItemArray = new Item[count];
-
-        Element.Builder eb = new Element.Builder(rs);
-        eb.add(Element.F32_2(rs), "delta");
-        eb.add(Element.F32_2(rs), "position");
-        eb.add(Element.U8_4(rs), "color");
-        mElement = eb.create();
-
-        init(rs, count);
-    }
-
-    private void copyToArray(Item i, int index) {
-        mIOBuffer.reset(index * Item.sizeof);
-        mIOBuffer.addF32(i.delta);
-        mIOBuffer.addF32(i.pos);
-        mIOBuffer.addU8(i.color);
-    }
-
-    public void set(Item i, int index, boolean copyNow) {
-        mItemArray[index] = i;
-        if (copyNow) {
-            copyToArray(i, index);
-            mAllocation.subData1D(index * Item.sizeof, Item.sizeof, mIOBuffer.getData());
-        }
-    }
-
-    public void copyAll() {
-        for (int ct=0; ct < mItemArray.length; ct++) {
-            copyToArray(mItemArray[ct], ct);
-        }
-        mAllocation.data(mIOBuffer.getData());
-    }
-
-
-    private FieldPacker mIOBuffer;
-
-
-}
diff --git a/java/Fountain/src/com/android/fountain/ScriptField_Point_s.java b/java/Fountain/src/com/android/fountain/ScriptField_Point_s.java
new file mode 100644
index 0000000..9697a4d
--- /dev/null
+++ b/java/Fountain/src/com/android/fountain/ScriptField_Point_s.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.fountain;
+
+import android.renderscript.*;
+import android.content.res.Resources;
+import android.util.Log;
+
+public class ScriptField_Point_s extends android.renderscript.Script.FieldBase {
+    static public class Item {
+        public static final int sizeof = 20;
+
+        Float2 delta;
+        Float2 position;
+        Short4 color;
+
+        Item() {
+            delta = new Float2();
+            position = new Float2();
+            color = new Short4();
+        }
+
+    }
+
+    private Item mItemArray[];
+    private FieldPacker mIOBuffer;
+    public  ScriptField_Point_s(RenderScript rs, int count) {
+        mItemArray = null;
+        mIOBuffer = null;
+        {
+            Element.Builder eb = new Element.Builder(rs);
+            eb.add(Element.createVector(rs, Element.DataType.FLOAT_32, 2), "delta");
+            eb.add(Element.createVector(rs, Element.DataType.FLOAT_32, 2), "position");
+            eb.add(Element.createVector(rs, Element.DataType.UNSIGNED_8, 4), "color");
+            mElement = eb.create();
+        }
+
+        init(rs, count);
+    }
+
+    private void copyToArray(Item i, int index) {
+        if (mIOBuffer == null) mIOBuffer = new FieldPacker(Item.sizeof * mType.getX() /* count */);
+        mIOBuffer.reset(index * Item.sizeof);
+        mIOBuffer.addF32(i.delta);
+        mIOBuffer.addF32(i.position);
+        mIOBuffer.addU8(i.color);
+    }
+
+    public void set(Item i, int index, boolean copyNow) {
+        if (mItemArray == null) mItemArray = new Item[mType.getX() /* count */];
+        mItemArray[index] = i;
+        if (copyNow)  {
+            copyToArray(i, index);
+            mAllocation.subData1D(index * Item.sizeof, Item.sizeof, mIOBuffer.getData());
+        }
+
+    }
+
+    public void copyAll() {
+        for (int ct=0; ct < mItemArray.length; ct++) copyToArray(mItemArray[ct], ct);
+        mAllocation.data(mIOBuffer.getData());
+    }
+
+}
+
diff --git a/rsScriptC.cpp b/rsScriptC.cpp
index 374a07f..ef37286 100644
--- a/rsScriptC.cpp
+++ b/rsScriptC.cpp
@@ -196,32 +196,9 @@
     setupScript(rsc);
     Script * oldTLS = setTLS(this);
 
-    const uint32_t * dPtr = (const uint32_t *)data;
-    switch(len) {
-    case 0:
-        mEnviroment.mInvokeFunctions[slot]();
-        break;
-    case 4:
-        ((void (*)(uint32_t))
-         mEnviroment.mInvokeFunctions[slot])(dPtr[0]);
-        break;
-    case 8:
-        ((void (*)(uint32_t, uint32_t))
-         mEnviroment.mInvokeFunctions[slot])(dPtr[0], dPtr[1]);
-        break;
-    case 12:
-        ((void (*)(uint32_t, uint32_t, uint32_t))
-         mEnviroment.mInvokeFunctions[slot])(dPtr[0], dPtr[1], dPtr[2]);
-        break;
-    case 16:
-        ((void (*)(uint32_t, uint32_t, uint32_t, uint32_t))
-         mEnviroment.mInvokeFunctions[slot])(dPtr[0], dPtr[1], dPtr[2], dPtr[3]);
-        break;
-    case 20:
-        ((void (*)(uint32_t, uint32_t, uint32_t, uint32_t, uint32_t))
-         mEnviroment.mInvokeFunctions[slot])(dPtr[0], dPtr[1], dPtr[2], dPtr[3], dPtr[4]);
-        break;
-    }
+    ((void (*)(const void *, uint32_t))
+        mEnviroment.mInvokeFunctions[slot])(data, len);
+
     setTLS(oldTLS);
 }
 
diff --git a/scriptc/rs_core.rsh b/scriptc/rs_core.rsh
index c0ba4af..8005a70 100644
--- a/scriptc/rs_core.rsh
+++ b/scriptc/rs_core.rsh
@@ -1,8 +1,6 @@
 #ifndef __RS_CORE_RSH__
 #define __RS_CORE_RSH__
 
-//uchar4 __attribute__((overloadable)) rsPackColorTo8888(float r, float g, float b);
-//uchar4 __attribute__((overloadable)) rsPackColorTo8888(float r, float g, float b, float a);
 
 static uchar4 __attribute__((overloadable)) rsPackColorTo8888(float r, float g, float b)
 {
@@ -24,8 +22,6 @@
     return c;
 }
 
-
-/*
 static uchar4 __attribute__((overloadable)) rsPackColorTo8888(float3 color)
 {
     color *= 255.f;
@@ -51,10 +47,11 @@
     return ret;
 }
 
-extern uchar4 __attribute__((overloadable)) rsPackColorTo565(float r, float g, float b);
-extern uchar4 __attribute__((overloadable)) rsPackColorTo565(float3);
-extern float4 rsUnpackColor565(uchar4);
-*/
+//extern uchar4 __attribute__((overloadable)) rsPackColorTo565(float r, float g, float b);
+//extern uchar4 __attribute__((overloadable)) rsPackColorTo565(float3);
+//extern float4 rsUnpackColor565(uchar4);
+
+
 
 
 #endif