6 files changed, 181 insertions, 8 deletions

diff --git a/assets/images/us_flag.png b/assets/images/us_flag.png
new file mode 100644
index 00000000..1545edc2
--- /dev/null
+++ b/assets/images/us_flag.png
diff --git a/assets/shaders/Flag.frag.glsl b/assets/shaders/Flag.frag.glsl
new file mode 100644
index 00000000..79d4bec3
--- /dev/null
+++ b/assets/shaders/Flag.frag.glsl
@@ -0,0 +1,13 @@
+#ifdef GL_ES
+precision highp float;
+#endif
+
+uniform sampler2D u_tex0;
+
+varying vec2 v_uv;
+
+void main(void)
+{
+    vec3 col = texture2D(u_tex0, v_uv).xyz;
+    gl_FragColor = vec4(col,1.0);
+}
\ No newline at end of file
diff --git a/assets/shaders/Flag.vert.glsl b/assets/shaders/Flag.vert.glsl
index 7dc932a7..9da0ee1c 100644
--- a/assets/shaders/Flag.vert.glsl
+++ b/assets/shaders/Flag.vert.glsl
@@ -16,20 +16,33 @@ attribute vec2 texcoord;
 
 // scalar uniforms
 uniform float u_time;
+uniform float u_waveWidth;
+uniform float u_waveHeight;
 
 // matrix uniforms
 uniform mat4 u_mvMatrix;
 uniform mat4 u_projMatrix;
 uniform mat4 u_worldMatrix;
 
+// varying variables
+varying vec2 v_uv;
+
 void main()
 {
-        float angle = (u_time%360)*2;
-
-        a_pos.z  = sin( a_pos.x + angle);
-        a_pos.z += sin( a_pos.y/2 + angle);
-        a_pos.z *= a_pos.x * 0.09;
-        gl_Position = u_projMatrix * u_mvMatrix * vec4(a_pos,1.0) ;
-
-        gl_FragColor = v_color;
+    float pi = 3.14159;
+        float angle = mod(u_time, pi)*2.0;
+
+    vec3 v = a_pos;
+    v_uv = texcoord;
+
+    vec2 pos = texcoord;
+    float tmp = pos.x;  pos.x = pos.y;  pos.y = tmp;
+    pos.x = pos.x * 1.0*pi * u_waveWidth;
+    pos.y = pos.y * 1.0*pi * u_waveWidth;
+
+        v.z  = sin( pos.x + angle);
+        v.z += sin( pos.y/2.0 + angle);
+        v.z *= v.y * 0.09 * u_waveHeight;
+        
+    gl_Position = u_projMatrix * u_mvMatrix * vec4(v,1.0) ;
 }
diff --git a/js/lib/geom/geom-obj.js b/js/lib/geom/geom-obj.js
index 11b9303a..0c0d7c01 100755
--- a/js/lib/geom/geom-obj.js
+++ b/js/lib/geom/geom-obj.js
@@ -309,6 +309,7 @@ var GeomObj = function GLGeomObj() {
                                 case "tunnel":
                                 case "reliefTunnel":
                                 case "squareTunnel":
+                case "flag":
                                 case "twist":
                                 case "fly":
                                 case "julia":
@@ -382,6 +383,7 @@ var GeomObj = function GLGeomObj() {
                                 case "tunnel":
                                 case "reliefTunnel":
                                 case "squareTunnel":
+                case "flag":
                                 case "twist":
                                 case "fly":
                                 case "julia":
diff --git a/js/lib/rdge/materials/flag-material.js b/js/lib/rdge/materials/flag-material.js
new file mode 100644
index 00000000..77991a8c
--- /dev/null
+++ b/js/lib/rdge/materials/flag-material.js
@@ -0,0 +1,142 @@
+/* <copyright>
+ This file contains proprietary software owned by Motorola Mobility, Inc.<br/>
+ No rights, expressed or implied, whatsoever to this software are provided by Motorola Mobility, Inc. hereunder.<br/>
+ (c) Copyright 2011 Motorola Mobility, Inc.  All Rights Reserved.
+ </copyright> */
+
+
+var PulseMaterial = require("js/lib/rdge/materials/pulse-material").PulseMaterial;
+var Texture = require("js/lib/rdge/texture").Texture;
+
+var FlagMaterial = function FlagMaterial() {
+    ///////////////////////////////////////////////////////////////////////
+    // Instance variables
+    ///////////////////////////////////////////////////////////////////////
+        this._name = "FlagMaterial";
+        this._shaderName = "flag";
+
+        this._texMap = 'assets/images/us_flag.png';
+
+        this._time = 0.0;
+        this._dTime = 0.1;
+
+    this._defaultWaveWidth = 1.0;
+    this._defaultWaveHeight = 1.0;
+
+    ///////////////////////////////////////////////////////////////////////
+    // Properties
+    ///////////////////////////////////////////////////////////////////////
+        // all defined in parent PulseMaterial.js
+        // load the local default value
+        this._propNames                 = ["texmap",        "wavewidth",        "waveheight" ];
+        this._propLabels                = ["Texture map",   "Wave Width",       "Wave Height" ];
+        this._propTypes                 = ["file",          "float",            "float" ];
+        this._propValues                = [];
+
+        this._propValues[ this._propNames[0] ] = this._texMap.slice(0);
+    this._propValues[ this._propNames[1] ] = this._defaultWaveWidth;
+    this._propValues[ this._propNames[2] ] = this._defaultWaveHeight;
+
+    ///////////////////////////////////////////////////////////////////////
+    // Methods
+    ///////////////////////////////////////////////////////////////////////
+        // duplcate method requirde
+        this.dup = function( world ) {
+                // allocate a new uber material
+                var newMat = new FlagMaterial();
+
+                // copy over the current values;
+                var propNames = [],  propValues = [],  propTypes = [],  propLabels = [];
+                this.getAllProperties( propNames,  propValues,  propTypes,  propLabels);
+                var n = propNames.length;
+                for (var i=0;  i<n;  i++) {
+                        newMat.setProperty( propNames[i], propValues[i] );
+        }
+
+                return newMat;
+        };
+
+        this.init = function( world )
+        {
+                // save the world
+                if (world)  this.setWorld( world );
+
+                // set up the shader
+                this._shader = new jshader();
+                this._shader.def = flagMaterialDef;
+                this._shader.init();
+
+                // set up the material node
+                this._materialNode = createMaterialNode("flagMaterial" + "_" + world.generateUniqueNodeID());
+                this._materialNode.setShader(this._shader);
+
+                this._time = 0;
+                if (this._shader && this._shader['default']) {
+                        this._shader['default'].u_time.set( [this._time] );
+            this._shader['default'].u_waveWidth.set(  [this._propValues[ this._propNames[1] ]] );
+            this._shader['default'].u_waveHeight.set( [this._propValues[ this._propNames[2] ]] );
+        }
+
+        // set up the texture
+        var texMapName = this._propValues[this._propNames[0]];
+        this._glTex = new Texture( world, texMapName );
+
+                // set the shader values in the shader
+                this.updateTexture();
+                this.update( 0 );
+        }
+};
+
+///////////////////////////////////////////////////////////////////////////////////////
+// RDGE shader
+ 
+// shader spec (can also be loaded from a .JSON file, or constructed at runtime)
+var flagMaterialDef =
+{'shaders': 
+        {
+                'defaultVShader':"assets/shaders/Flag.vert.glsl",
+                'defaultFShader':"assets/shaders/Flag.frag.glsl"
+        },
+        'techniques':
+        { 
+                'default':
+                [
+                        {
+                                'vshader' : 'defaultVShader',
+                                'fshader' : 'defaultFShader',
+                                // attributes
+                                'attributes' :
+                                {
+                                        'vert'  :   { 'type' : 'vec3' },
+                                        'normal' :  { 'type' : 'vec3' },
+                                        'texcoord'  :   { 'type' : 'vec2' }
+                                },
+                                // parameters
+                                'params' : 
+                                {
+                                        'u_tex0': { 'type' : 'tex2d' },
+                                        'u_time' : { 'type' : 'float' },
+                                        'u_waveWidth'  :   { 'type' : 'float' },
+                                        'u_waveHeight'  :   { 'type' : 'float' }
+                                },
+
+                                // render states
+                                'states' : 
+                                {
+                                        'depthEnable' : true,
+                                        'offset':[1.0, 0.1]
+                                }
+                        }
+                ]
+        }
+};
+
+FlagMaterial.prototype = new PulseMaterial();
+
+if (typeof exports === "object") {
+    exports.FlagMaterial = FlagMaterial;
+}
+
+
+