a few corrections in the java mode examples

java/examples/Demos/Graphics/Ribbons/Ribbons.pde

@@ -31,6 +31,7 @@ void setup() {
 void draw() {
   background(0);
    
+  ambient(80);   
   lights();
    
   translate(width/2, height/2, 200);
@@ -47,4 +48,4 @@ void mousePressed(){
 
 void mouseDragged(){
   arcball.mouseDragged();
-}
+}

java/examples/Topics/Shaders/Deform/data/deform.glsl

@@ -1,3 +1,8 @@
+#ifdef GL_ES
+precision mediump float;
+precision mediump int;
+#endif
+
 uniform sampler2D textureSampler;
 
 uniform float time;

java/examples/Topics/Shaders/ImageMask/data/mask.glsl

@@ -1,3 +1,8 @@
+#ifdef GL_ES
+precision mediump float;
+precision mediump int;
+#endif
+
 uniform sampler2D textureSampler;
 uniform sampler2D maskSampler;
 

java/examples/Topics/Shaders/ToonShading/data/ToonFrag.glsl

@@ -1,3 +1,8 @@
+#ifdef GL_ES
+precision mediump float;
+precision mediump int;
+#endif
+
 varying vec3 vertNormal;
 varying vec3 vertLightDir;
 

java/examples/Topics/Textures/TextureCube/TextureCube.pde

@@ -17,7 +17,7 @@ float roty = PI/4;
 void setup() {
   size(640, 360, P3D);
   tex = loadImage("berlin-1.jpg");
-  textureMode(NORMALIZED);
+  textureMode(NORMAL);
   fill(255);
   stroke(color(44,48,32));
 }
@@ -88,4 +88,4 @@ void mouseDragged() {
   float rate = 0.01;
   rotx += (pmouseY-mouseY) * rate;
   roty += (mouseX-pmouseX) * rate;
-}
+}