diff --git a/core/PApplet.java b/core/PApplet.java
index bfab7eac2..243a3f182 100644
--- a/core/PApplet.java
+++ b/core/PApplet.java
@@ -4028,7 +4028,7 @@ public class PApplet extends Applet
       Frame frame = new Frame();
       frame.setResizable(false);  // remove the grow box
       frame.pack();  // get insets. get more.
-      frame.show();  // gl hack
+      //frame.show();  // gl hack
       Class c = Class.forName(name);
       PApplet applet = (PApplet) c.newInstance();
 
@@ -4141,6 +4141,11 @@ public class PApplet extends Applet
   // public functions for processing.core
 
 
+  public void modified() {
+     g.modified();
+  }
+
+
   public void alpha(int alpha[]) {
      g.alpha(alpha);
   }
diff --git a/core/PFont.java b/core/PFont.java
index c2d8ec48c..c30cce551 100644
--- a/core/PFont.java
+++ b/core/PFont.java
@@ -191,11 +191,10 @@ public class PFont implements PConstants {
       for (int y = 0; y < h; y++) {
         for (int x = 0; x < w; x++) {
           int valu = temp[y*w + x] & 0xff;
-          //images[i].pixels[y*64 + x] = valu;
-          images[i].pixels[y * twidth + x] = valu;
-          // the following makes javagl more happy..
-          // not sure what's going on
-          //(valu << 24) | (valu << 16) | (valu << 8) | valu; //0xffffff;
+          //images[i].pixels[y * twidth + x] = valu;
+
+          images[i].pixels[y * twidth + x] =
+            (valu << 24) | (valu << 16) | (valu << 8) | valu;
           //System.out.print((images[i].pixels[y*64+x] > 128) ? "*" : ".");
         }
         //System.out.println();
diff --git a/core/PImage.java b/core/PImage.java
index 9c408bd82..94522e541 100644
--- a/core/PImage.java
+++ b/core/PImage.java
@@ -85,7 +85,9 @@ public class PImage implements PConstants, Cloneable {
   public boolean smooth = false;
 
   /** for gl subclass / hardware accel */
-  public int cacheIndex;
+  public int tindex;
+  public int tpixels[];
+  public int twidth, theight;
 
   // private fields
   private int fracU, ifU, fracV, ifV, u1, u2, v1, v2, sX, sY, iw, iw1, ih1;
@@ -108,7 +110,7 @@ public class PImage implements PConstants, Cloneable {
    */
   public PImage() {
     format = RGB;  // makes sure that this guy is useful
-    cacheIndex = -1;
+    tindex = -1;
   }
 
 
@@ -136,7 +138,7 @@ public class PImage implements PConstants, Cloneable {
     this.width = width;
     this.height = height;
     this.format = format;
-    this.cacheIndex = -1;
+    this.tindex = -1;
   }
 
 
@@ -148,7 +150,39 @@ public class PImage implements PConstants, Cloneable {
     this.height = height;
     this.pixels = new int[width*height];
     this.format = format;
-    this.cacheIndex = -1;
+    this.tindex = -1;
+  }
+
+
+  public void modified() {
+    tindex = -1;
+
+    int width2 = (int) Math.pow(2, Math.ceil(Math.log(width) / Math.log(2)));
+    int height2 = (int) Math.pow(2, Math.ceil(Math.log(height) / Math.log(2)));
+
+    if ((width2 == width) && (height2 == height)) {
+      // image can be used by itself as the texture image
+      tpixels = pixels;
+
+    } else {
+      if ((width2 > twidth) || (height2 > theight)) {
+        // either twidth/theight are zero, or size has changed
+        tpixels = null;
+      }
+      if (tpixels == null) {
+        twidth = width2;
+        theight = height2;
+        tpixels = new int[twidth * theight];
+      }
+      // copy image data into the texture
+      int p = 0;
+      int t = 0;
+      for (int y = 0; y < height; y++) {
+        System.arraycopy(pixels, p, tpixels, t, width);
+        p += width;
+        t += twidth;
+      }
+    }
   }
 
 
@@ -171,7 +205,7 @@ public class PImage implements PConstants, Cloneable {
     } catch (InterruptedException e) { }
 
     format = RGB;
-    cacheIndex = -1;
+    tindex = -1;
   }
 
 
diff --git a/core/PMethods.java b/core/PMethods.java
index 70623802e..a1148a1f0 100755
--- a/core/PMethods.java
+++ b/core/PMethods.java
@@ -6,6 +6,8 @@ package processing.core;
 
 public interface PMethods {
 
+  public void modified();
+
   public void alpha(int alpha[]);
 
   public void alpha(PImage alpha);
diff --git a/core/todo.txt b/core/todo.txt
index b095eb432..e5c411e98 100644
--- a/core/todo.txt
+++ b/core/todo.txt
@@ -12,6 +12,10 @@ X eyeX, eyeY etc have been renamed cameraX/Y/Z, and cameraNear/Far
 X modify targa and tiff writing routines to break into header writing
 X   writeTIFF, writeHeaderTIFF, writeTGA, writeHeaderTGA
 
+_ remove need to use depth() at the beginning
+_ and cameraMode(PERSPECTIVE) on each frame
+_ reverse y coordinates
+
 _ implement size(0, 0) -> just doesn't bother doing a frame.show();
 _ implement fullscreen().. this takes over the screen as best it can
 _   really more like present mode..