/* <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 MaterialParser = require("js/lib/rdge/materials/material-parser").MaterialParser;
var Material = require("js/lib/rdge/materials/material").Material;
var Texture = require("js/lib/rdge/texture").Texture;

var UberMaterial = function UberMaterial() {
    ///////////////////////////////////////////////////////////////////////
    // Instance variables
    ///////////////////////////////////////////////////////////////////////
    this._name = "Uber";
    this._shaderName = "uber";
    this.getShaderName = function () { return this._shaderName; };

    // set some default values
    this._ambientColor = [0.0, 0.0, 0.0, 1.0];
    this._diffuseColor = [1.0, 1.0, 1.0, 1.0];
    this._specularColor = [1.0, 1.0, 1.0, 1.0];
    this._specularPower = 32.0;
    this._environmentAmount = 0.2; 	// 0 .. 1

    // set the default maps
	this._diffuseMapOb = { 'texture' : 'assets/images/rocky-diffuse.jpg', 'wrap' : 'REPEAT' };
	//this._diffuseMapOb = { 'texture' : 'texture', 'wrap' : 'REPEAT' };
    this._normalMapOb = { 'texture': 'assets/images/rocky-normal.jpg', 'wrap': 'REPEAT' };
    this._specularMapOb = { 'texture': 'assets/images/rocky-spec.jpg', 'wrap': 'REPEAT' };
    this._environmentMapOb = { 'texture': 'assets/images/silver.png', 'wrap': 'CLAMP', 'envReflection': this._environmentAmount };

    this._useDiffuseMap = true;
    this._useNormalMap = true;
    this._useSpecularMap = true;
    this._useEnvironmentMap = true;
    this._useLights = [true, true, true, true];

    // these are the abstracted texture objects - defined where they are set
    this._diffuseTexture;

    this._MAX_LIGHTS = 4;

    // array textures indexed by shader uniform name
    this._glTextures = [];

    ///////////////////////////////////////////////////////////////////////
    // Material Property Accessors
    ///////////////////////////////////////////////////////////////////////
    this._propNames = ["ambientColor", "diffuseColor", "specularColor", "specularPower", "diffuseMap", "normalMap", "specularMap", "environmentMap", "environmentAmount"];
    this._propLabels = ["Ambient Color", "Diffuse Color", "Specular Color", "Specular Power", "Texture Map", "Bump Map", "Specular Map", "Environment Map", "Environment Map Amount"];
    this._propTypes = ["color", "color", "color", "float", "file", "file", "file", "file", "float"];
    this._propValues = [];

    this._propValues[this._propNames[0]] = this._ambientColor.slice(0);
    this._propValues[this._propNames[1]] = this._diffuseColor.slice(0);
    this._propValues[this._propNames[2]] = this._specularColor.slice(0);
    this._propValues[this._propNames[3]] = this._specularPower;
    this._propValues[this._propNames[4]] = this._diffuseMapOb['texture'];
    this._propValues[this._propNames[5]] = this._normalMapOb['texture'];
    this._propValues[this._propNames[6]] = this._specularMapOb['texture'];
    this._propValues[this._propNames[7]] = this._environmentMapOb['texture'];
    this._propValues[this._propNames[8]] = this._environmentMapOb['envReflection'];

	this.resetToDefault = function()
	{
		this._propValues[this._propNames[0]] = this._ambientColor.slice(0);
		this._propValues[this._propNames[1]] = this._diffuseColor.slice(0);
		this._propValues[this._propNames[2]] = this._specularColor.slice(0);
		this._propValues[this._propNames[3]] = this._specularPower;
		this._propValues[this._propNames[4]] = this._diffuseMapOb['texture'];
		this._propValues[this._propNames[5]] = this._normalMapOb['texture'];
		this._propValues[this._propNames[6]] = this._specularMapOb['texture'];
		this._propValues[this._propNames[7]] = this._environmentMapOb['texture'];
		this._propValues[this._propNames[8]] = this._environmentMapOb['envReflection'];
	
		var nProps = this._propNames.length;
		for (var i=0; i<nProps;  i++)
			this.setProperty( this._propNames[i],  this._propValues[this._propNames[i]]  );
	};

    this.setProperty = function (prop, value) {
        if (prop == "color") prop = "ambientColor";
        var valid = this.validateProperty(prop, value);
        if (valid) {
            this._propValues[prop] = value;

            switch (prop) {
                case "diffuseMap":
                    this.updateDiffuseMap();
                    break;
                case "normalMap":
                    this.updateNormalMap();
                    break;
                case "specularMap":
                    this.updateSpecularMap();
                    break;
                case "environmentMap":
                    this.updateEnvironmentMap();
                    break;
                case "environmentAmount":
                    this.updateEnvironmentAmount(value);
                    break;
                case "specularPower":
                    this.updateSpecularPower(value);
                    break;
                case "ambientColor":
                    this.updateAmbientColor(value);
                    break;
                case "diffuseColor":
                    this.updateDiffuseColor(value);
                    break;
                case "specularColor":
                    this.updateSpecularColor(value);
                    break;
            }
        }
    };
    ///////////////////////////////////////////////////////////////////////

    // define the 4 lights
    this._lights = [

		{
		    'type': 'point',                           // can be 'directional', 'point' or 'spot'
		    'spotInnerCutoff': 14.0,                   // fragments in the inner cutoff 'cone' are full intensity.
		    'spotOuterCutoff': 15.0,                   // fragments outside the outer cutoff 'cone' are unlit.
		    'position': [8.0, 2.0, 8.0],             // light position; ignored for directional lights
		    'direction': [-1.0, -1.0, -1.0],         // light direction; ignored for point lights
		    'attenuation': [1.0, 0.025, 0.00125],    // light attenuation; constant, linear, quadratic 
		    'diffuseColor': [1.0, 0.5, 0.5, 1.0],    // diffuse light color
		    'specularColor': [1.0, 1.0, 1.0, 1.0]    // specular light color  
		},
		{
		    'type': 'point',
		    'spotInnerCutoff': 9.0,
		    'spotOuterCutoff': 20.0,
		    'position': [-8.0, 2.0, 8.0],
		    'direction': [1.0, -1.0, -1.0],
		    'attenuation': [1.0, 0.025, 0.00125],
		    'diffuseColor': [0.5, 1.0, 0.5, 1.0],
		    'specularColor': [1.0, 1.0, 1.0, 1.0]
		},
		{
		    'type': 'point',
		    'spotInnerCutoff': 9.0,
		    'spotOuterCutoff': 20.0,
		    'position': [-8.0, 2.0, -8.0],
		    'direction': [1.0, -1.0, 1.0],
		    'attenuation': [1.0, 0.25, 0.0125],
		    'diffuseColor': [0.5, 0.5, 1.0, 1.0],
		    'specularColor': [1.0, 1.0, 1.0, 1.0]
		},
		{
		    'type': 'point',
		    'spotInnerCutoff': 9.0,
		    'spotOuterCutoff': 20.0,
		    'position': [8.0, 4.0, -8.0],
		    'direction': [-1.0, -1.0, 1.0],
		    'attenuation': [1.0, 0.25, 0.0125],
		    'diffuseColor': [1.0, 1.0, 0.5, 1.0],
		    'specularColor': [1.0, 1.0, 1.0, 1.0]
		}
	];

    this._ubershaderCaps =
	{
	    // ubershader material properties. 
	    'material': {
	        'ambientColor': this._ambientColor,    // material ambient color
	        'diffuseColor': this._diffuseColor,    // material diffuse color
	        'specularColor': this._specularColor,   // material specular color
	        'specularPower': this._specularPower    // material specular power (shininess)
	    },

	    // ubershader supports up to four lights. 
	    'lighting': {
	        'light0': this._lights[0],
	        'light1': this._lights[1],
	        'light2': this._lights[2],
	        'light3': this._lights[3]
	    },

	    // uvTransform can be used to scale or offset the texture coordinates.
	    'uvTransform': [2.0, 0, 0, 0, 0, 2.0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 1],

	    // optional diffuse map
	    'diffuseMap': this._diffuseMapOb,

	    // optional normal map
	    'normalMap': this._normalMapOb,

	    // optional specular map
	    'specularMap': this._specularMapOb,

	    // optional environment map
	    'environmentMap': this._environmentMapOb
	};

    this.updateAmbientColor = function () {
        this._ambientColor = this._propValues['ambientColor'].slice(0);
        var material = this._materialNode;
		//console.log( "ambient color: " + this._ambientColor );
        if (material) {
            var technique = material.shaderProgram.defaultTechnique;
            technique.u_ambientColor.set(this._ambientColor);
        }
    };

    this.updateDiffuseColor = function () {
        this._diffuseColor = this._propValues['diffuseColor'].slice(0);

        var material = this._materialNode;
        if (material) {
            var technique = material.shaderProgram.defaultTechnique;
            technique.u_diffuseColor.set(this._diffuseColor);
            this.getWorld().restartRenderLoop();
        }
    };

    this.updateSpecularColor = function (value) {
        this._specularColor = this._propValues['specularColor'];

        var material = this._materialNode;
        if (material) {
            var technique = material.shaderProgram.defaultTechnique;
            technique.u_specularColor.set(this._specularColor);
        }
    };

    this.updateSpecularPower = function (value) {
        this._specularPower = this._propValues['specularPower'];

        var material = this._materialNode;
        if (material) {
            var technique = material.shaderProgram.defaultTechnique;
            technique.u_specularPower.set([this._specularPower]);
        }
    };

    this.updateEnvironmentAmount = function (value) {
        this._environmentMapOb.envReflectionAmount = value;

        var material = this._materialNode;
        if (material) {
            var technique = material.shaderProgram.defaultTechnique;
            technique.u_envReflection.set([this._environmentMapOb.envReflection]);
        }
    };

    this.updateEnvironmentMap = function () {
        var value = this._propValues["environmentMap"];
        this._environmentMapOb.texture = value;

        if ((value == null) || (value.length == 0)) {
            if (this._useEnvironmentMap) {
                this._useEnvironmentMap = false;
                this.rebuildShader();
            }
        } else {
            if (!this._useEnvironmentMap) {
                this._useEnvironmentMap = true;
                this.rebuildShader();
            } else {
                var material = this._materialNode;
                if (material) {
                    var technique = material.shaderProgram.defaultTechnique;
                    var renderer = RDGE.globals.engine.getContext().renderer;
                    if (renderer && technique) {
                        var tex = renderer.getTextureByName(value, this._ubershaderCaps.environmentMap.wrap);
                        this.registerTexture(tex);
                        technique.s_envMap.set(tex);
                    }
                }
            }
        }
    };

 	this.updateDiffuseMap = function(value) {
		var value = this._propValues[ "diffuseMap" ];
		this._diffuseMapOb.texture = value;

		if ((value == null) || (value.length == 0)) {
			if (this._useDiffuseMap) {
				this._useDiffuseMap = false;
                this._diffuseTexture = undefined;
				this.rebuildShader();
			}
		} else {
			if (!this._useDiffuseMap) {
				this._useDiffuseMap = true;
				this.rebuildShader();
			} else {
				var material = this._materialNode;
				if (material) {
					var technique = material.shaderProgram.defaultTechnique;
					var renderer = RDGE.globals.engine.getContext().renderer;
					if (renderer && technique) {
                        this._diffuseTexture = new Texture( this.getWorld(), value,  this._ubershaderCaps.diffuseMap.wrap );
                        var tex = this._diffuseTexture.getTexture();
						technique.s_diffuseMap.set( tex );
					}
				}
			}
		}
	};

    this.updateSpecularMap = function () {
        var value = this._propValues["specularMap"];
        this._specularMapOb.texture = value;

        if ((value == null) || (value.length == 0)) {
            if (this._useSpecularMap) {
                this._useSpecularMap = false;
                this.rebuildShader();
            }
        } else {
            if (!this._useSpecularMap) {
                this._useSpecularMap = true;
                this.rebuildShader();
            } else {
                var material = this._materialNode;
                if (material) {
                    var technique = material.shaderProgram.defaultTechnique;
                    var renderer = RDGE.globals.engine.getContext().renderer;
                    if (renderer && technique) {
                        var tex = renderer.getTextureByName(value, this._ubershaderCaps.specularMap.wrap);
                        this.registerTexture(tex);
                        technique.s_specMap.set(tex);
                    }
                }
            }
        }
    };

    this.updateNormalMap = function (value) {
        var value = this._propValues["normalMap"];
        this._normalMapOb.texture = value;

        if ((value == null) || (value.length == 0)) {
            if (this._useNormalMap) {
                this._useNormalMap = false;
                this.rebuildShader();
            }
        } else {
            if (!this._useNormalMap) {
                this._useNormalMap = true;
                this.rebuildShader();
            } else {
                var material = this._materialNode;
                if (material) {
                    var technique = material.shaderProgram.defaultTechnique;
                    var renderer = RDGE.globals.engine.getContext().renderer;
                    if (renderer && technique) {
                        var tex = renderer.getTextureByName(value, this._ubershaderCaps.normalMap.wrap);
                        this.registerTexture(tex);
                        technique.s_normalMap.set(tex);
                    }
                }
            }
        }
    };

    // duplcate method requirde
    this.dup = function () {

        // get the current values;
        var propNames = [], propValues = [], propTypes = [], propLabels = [];
        this.getAllProperties(propNames, propValues, propTypes, propLabels);
        
        // allocate a new material
        var newMat = new UberMaterial();
        newMat._useDiffuseMap = this._useDiffuseMap;
        newMat._useEnvironmentMap = this._useEnvironmentMap;
        newMat._useLights = this._useLights;
        newMat._useNormalMap = this._useNormalMap;
        newMat._useSpecularMap = this._useSpecularMap;

		// copy over the current values;
        var n = propNames.length;
        for (var i = 0; i < n; i++)
            newMat.setProperty(propNames[i], propValues[i]);

        newMat.rebuildShader();

        return newMat;
    };

    this.init = function (world) {
        // save the world
        if (world) this.setWorld(world);

        // set up the shader
        this._shader = this.buildUberShader(this._ubershaderCaps);

        // set up the material node
        this._materialNode = RDGE.createMaterialNode("uberMaterial" + "_" + world.generateUniqueNodeID());
        this._materialNode.setShader(this._shader);
    };

   this.update = function()
    {
		var material = this._materialNode;
		if (material)
        {
		    var technique = material.shaderProgram.defaultTechnique;
		    var renderer = RDGE.globals.engine.getContext().renderer;
		    if (renderer && technique)
            {
                if (this._diffuseTexture && this._diffuseTexture.isAnimated())
                {
                    this._diffuseTexture.render();
				    technique.s_diffuseMap.set( this._diffuseTexture.getTexture() );
                }
            }
        }
    }
	
    this.isAnimated	= function()
    {
        var anim = (this._diffuseTexture && this._diffuseTexture.isAnimated());
        return anim;
    }

    this.importJSON = function (jObj)
	{
        if (this.getShaderName() != jObj.material) throw new Error("ill-formed material");
        this.setName(jObj.name);

        if (jObj.materialProps) {
            var ambientColor = jObj.materialProps.ambientColor; this.setProperty("ambientColor", ambientColor);
            var diffuseColor = jObj.materialProps.diffuseColor; this.setProperty("diffuseColor", diffuseColor);
            var specularColor = jObj.materialProps.specularColor; this.setProperty("specularColor", specularColor);
            var specularPower = jObj.materialProps.specularPower; this.setProperty("specularPower", specularPower);
        }

        var lightArray = jObj.lights;
        if (lightArray) {
            this._lights = [];
            for (var i = 0; i < this._MAX_LIGHTS; i++) {
                var lightObj = lightArray[i];
                if (lightObj) {
                    var type = lightObj['light' + i];
                    if (type) {
                        var light = new Object;
                        switch (type) {
                            case "directional":
                                light.direction = lightObj['light' + i + 'Dir'];
                                break;

                            case "spot":
                                light.position = lightObj['light' + i + 'Pos'];
                                light['spotInnerCutoff'] = lightObj['light' + i + 'OuterSpotCutoff'];
                                light['spotOuterCutoff'] = lightObj['light' + i + 'InnerSpotCutoff'];
                                break;

                            case "point":
                                light.position = lightObj['light' + i + 'Pos'];
                                light.attenuation = lightObj['light' + i + 'Attenuation'];
                                break;

                            default:
                                throw new Error("unrecognized light type on import: " + type);
                                break;
                        }

                        // common to all lights
                        light.diffuseColor = lightObj['light' + i + 'Color'];
                        light.specularColor = lightObj['light' + i + 'SpecularColor'];

                        // push the light
                        this._lights.push(light);
                    }
                    else
                        this._lights[i] = 'undefined';
                }
            }

            if (this._lights.length > 0) {
                this._ubershaderCaps.lighting =
				{
				    'light0': this._lights[0],
				    'light1': this._lights[1],
				    'light2': this._lights[2],
				    'light3': this._lights[3]
				}
            }
        }

        var diffuseMap = jObj['diffuseMap'];
        if (diffuseMap) {
            this.setProperty("diffuseMap", diffuseMap);
        }

        var normalMap = jObj['normalMap'];
        if (normalMap) {
            this.setProperty("normalMap", normalMap);
        }

        var specularMap = jObj['specularMap'];
        if (specularMap) {
            this.setProperty("specularMap", specularMap);
        }

        var environmentMap = jObj['environmentMap'];
        if (environmentMap) {
            this.setProperty("environmentMap", environmentMap);
            this.setProperty("environmentAmount", jObj['environmentAmount']);
        }

        this.rebuildShader();
    };

    this.exportJSON = function () {
        // every material needs the base type and instance name
        var caps = this._ubershaderCaps;
        var jObj =
		{
		    'material': this.getShaderName(),
		    'name': this.getName()
		};

        // export the material properties
        if (typeof caps.material != 'undefined') {
            jObj.materialProps =
			{
			    'ambientColor': this._ambientColor,
			    'diffuseColor': this._diffuseColor,
			    'specularColor': this._specularColor,
			    'specularPower': this._specularPower
			};

        }

        if (typeof caps.lighting != 'undefined') {
            var lightArray = [];
            for (var i = 0; i < this._MAX_LIGHTS; i++) {
                var light = caps.lighting["light" + i];
                if (typeof light != "undefined") {
                    var lightObj = {}
                    lightObj['light' + i] = light.type;

                    // output the light secific data
                    if (light.type === 'directional') {
                        lightObj['light' + i + 'Dir'] = light['direction'];
                    }
                    else if (light.type === 'spot') {
                        lightObj['light' + i + 'Pos'] = light['position'];
                        lightObj['light' + i + 'SpotInnerCutoff'] = light['spotInnerCutoff'];
                        lightObj['light' + i + 'SpotOuterCutoff'] = light['spotOuterCutoff'];
                    }
                    else		// light.type === 'point'
                    {
                        lightObj['light' + i + 'Pos'] = (light['position'] || [0, 0, 0]);
                        lightObj['light' + i + 'Attenuation'] = (light['attenuation'] || [1, 0, 0]);
                    }

                    // common to all lights
                    lightObj['light' + i + 'Color'] = (light['diffuseColor'] || [1, 1, 1, 1]);
                    lightObj['light' + i + 'SpecularColor'] = (light['specularColor'] || [1, 1, 1, 1]);

                    lightArray.push(lightObj);
                }
            }

            if (lightArray.length > 0)
                jObj.lights = lightArray;
        }

        if (typeof caps.diffuseMap != 'undefined') {
            jObj['diffuseMap'] = caps.diffuseMap.texture;
        }

        if (typeof caps.normalMap != 'undefined') {
            jObj['normalMap'] = caps.normalMap.texture;
        }

        if (typeof caps.specularMap != 'undefined') {
            jObj['specularMap'] = caps.specularMap.texture;
        }

        if (typeof caps.environmentMap != 'undefined') {
            jObj['environmentMap'] = caps.environmentMap.texture;
            jObj['environmentAmount'] = caps.environmentMap.envReflection;
        }

        return jObj;
    };

    this.buildUberShader = function (caps) {
        var preproc = "";
        var paramBlock = {};

        paramBlock['u_uvMatrix'] = { 'type': 'mat4' };

        if (typeof caps.material != 'undefined') {
            preproc += '#define MATERIAL\n';
            paramBlock['u_ambientColor'] = { 'type': 'vec4' };
            paramBlock['u_diffuseColor'] = { 'type': 'vec4' };
            paramBlock['u_specularColor'] = { 'type': 'vec4' };
            paramBlock['u_specularPower'] = { 'type': 'float' };
        }
        if (typeof caps.lighting != 'undefined') {
            preproc += '#define LIGHTING\n';
            preproc += '#define SPECULAR\n';
            for (var i = 0; i < 4; ++i) {
                var light = caps.lighting['light' + i];
                var t;
                if (typeof light != 'undefined') {
                    switch (light.type) {
                        case 'directional': t = 0; break;
                        case 'point': t = 1; break;
                        case 'spot': t = 2; break;
                    }
                    preproc += '#define LIGHT_' + i + ' ' + t + '\n';
                    preproc += '#define LIGHT_' + i + '_SPECULAR\n';
                    if (t == 0 || t == 2) {
                        paramBlock['u_light' + i + 'Dir'] = { 'type': 'vec3' };
                    }
                    if (t == 2) {
                        paramBlock['u_light' + i + 'Spot'] = { 'type': 'vec2' };
                    }
                    paramBlock['u_light' + i + 'Pos'] = { 'type': 'vec3' };
                    paramBlock['u_light' + i + 'Color'] = { 'type': 'vec4' };
                    paramBlock['u_light' + i + 'Atten'] = { 'type': 'vec3' };
                    paramBlock['u_light' + i + 'Specular'] = { 'type': 'vec4' };
                }
            }
        }

        if (typeof caps.diffuseMap != 'undefined') {
            preproc += '#define DIFFUSE_MAP\n';
            paramBlock['s_diffuseMap'] = { 'type': 'tex2d' };
        }

        if (typeof caps.normalMap != 'undefined') {
            preproc += '#define NORMAL_MAP\n';
            paramBlock['s_normalMap'] = { 'type': 'tex2d' };
        }

        if (typeof caps.specularMap != 'undefined') {
            preproc += '#define SPECULAR_MAP\n';
            paramBlock['s_specMap'] = { 'type': 'tex2d' };
        }

        if (typeof caps.environmentMap != 'undefined') {
            preproc += '#define ENVIRONMENT_MAP\n';
            paramBlock['s_envMap'] = { 'type': 'tex2d' };
            paramBlock['u_envReflection'] = { 'type': 'float' };
        }

        // load the shaders as text
        var uberVShader, uberFShader;
        var r = new XMLHttpRequest();
        r.open('GET', "assets/shaders/ub_vshader.glsl", false);
        r.send(null);
        if (r.status == 200) {
            uberVShader = r.responseText;
        }

        r.open('GET', "assets/shaders/ub_fshader.glsl", false);
        r.send(null);
        if (r.status == 200) {
            uberFShader = r.responseText;
        }

        // prefix preprocessor settings
        var vshader = preproc + uberVShader;
        var fshader = preproc + uberFShader;

        // build output jshader  
        var uberJShader = new RDGE.jshader();
        uberJShader.def = {
            'shaders': {
                'defaultVShader': vshader,
                'defaultFShader': fshader
            },
            'techniques': {
                'defaultTechnique': [{
                    'vshader': 'defaultVShader',
                    'fshader': 'defaultFShader',
                    'attributes': {
                        'a_pos': { 'type': 'vec3' },
                        'a_normal': { 'type': 'vec3' },
                        'a_texcoord': { 'type': 'vec2' }
                    },
                    'params': paramBlock,
                    'states': {
                        'depthEnable': true,
                        'blendEnable': false,
                        'culling': true,
                        'cullFace': "FRONT"
                    }
                }]
            }
        };
        // initialize the jshader
        try {
            uberJShader.init();
        }
        catch (e) {
            console.log("error initializing the uber shader: " + e);
        }

        // initialize shader parameters
        var technique = uberJShader.defaultTechnique;
        if (typeof caps.material != 'undefined') {
            technique.u_ambientColor.set(caps.material.ambientColor);
            technique.u_diffuseColor.set(caps.material.diffuseColor);
            technique.u_specularColor.set(caps.material.specularColor);
            technique.u_specularPower.set([caps.material.specularPower]);
        }

        if (typeof caps.lighting != 'undefined') {
            for (i = 0; i < 4; ++i) {
                var light = caps.lighting["light" + i];
                if (typeof light != "undefined") {
                    if (light.type == 'directional') {
                        paramBlock['u_light' + i + 'Dir'] = { 'type': 'vec3' };
                        technique['u_light' + i + 'Dir'].set(light['direction'] || [0, 0, 1]);
                    } else if (light.type == 'spot') {
                        paramBlock['u_light' + i + 'Spot'] = { 'type': 'vec2' };
                        technique['u_light' + i + 'Pos'].set(light['position'] || [0, 0, 0]);
                        var deg2Rad = Math.PI / 180;
                        technique['u_light' + i + 'Spot'].set([Math.cos((light['spotInnerCutoff'] || 45.0) * deg2Rad),
															Math.cos((light['spotOuterCutoff'] || 90.0) * deg2Rad)]);
                        technique['u_light' + i + 'Atten'].set(light['attenuation'] || [1, 0, 0]);
                    } else {
                        technique['u_light' + i + 'Pos'].set(light['position'] || [0, 0, 0]);
                        technique['u_light' + i + 'Atten'].set(light['attenuation'] || [1, 0, 0]);
                    }
                    technique['u_light' + i + 'Color'].set(light['diffuseColor'] || [1, 1, 1, 1]);
                    technique['u_light' + i + 'Specular'].set(light['specularColor'] || [1, 1, 1, 1]);
                }
            }
        }
        technique.u_uvMatrix.set(caps.uvTransform || RDGE.mat4.identity());

        var renderer = RDGE.globals.engine.getContext().renderer;
        if (this._useDiffuseMap) {
			this._diffuseTexture = new Texture( this.getWorld(), caps.diffuseMap.texture,  caps.diffuseMap.wrap, caps.diffuseMap.mips );
            var tex = this._diffuseTexture.getTexture();
			technique.s_diffuseMap.set( tex );
        }

        if (this._useNormalMap) {
            var tex = renderer.getTextureByName(caps.normalMap.texture, caps.normalMap.wrap, caps.normalMap.mips);
            this.registerTexture(tex);
            technique.s_normalMap.set(tex);
        }

        if (this._useSpecularMap) {
            var tex = renderer.getTextureByName(caps.specularMap.texture, caps.specularMap.wrap);
            this.registerTexture(tex);
            technique.s_specMap.set(tex);
        }

        if (this._useEnvironmentMap) {
            var tex = renderer.getTextureByName(caps.environmentMap.texture, caps.environmentMap.wrap);
            this.registerTexture(tex);
            technique.s_envMap.set(tex);
            technique.u_envReflection.set([caps.environmentMap.envReflection || 1.0]);
        }

        return uberJShader;
    };

    this.rebuildShader = function () {
        this._ubershaderCaps['material']['ambientColor'] = this._ambientColor;
        this._ubershaderCaps['material']['diffuseColor'] = this._diffuseColor;
        this._ubershaderCaps['material']['specularColor'] = this._specularColor;
        this._ubershaderCaps['material']['specularPower'] = this._specularPower;
        var useDiffuse = this._useDiffuseMap;
        if (!useDiffuse) {
            if (typeof this._ubershaderCaps['diffuseMap'] != 'undefined') {
                delete this._ubershaderCaps['diffuseMap'];
            }
        } else {
            this._ubershaderCaps['diffuseMap'] = this._diffuseMapOb;
        }

        var useNormal = this._useNormalMap;
        if (!useNormal) {
            if (typeof this._ubershaderCaps['normalMap'] != 'undefined') {
                delete this._ubershaderCaps['normalMap'];
            }
        } else {
            this._ubershaderCaps['normalMap'] = this._normalMapOb;
        }

        var useSpecular = this._useSpecularMap;
        if (!useSpecular) {
            if (typeof this._ubershaderCaps['specularMap'] != 'undefined') {
                delete this._ubershaderCaps['specularMap'];
            }
        } else {
            this._ubershaderCaps['specularMap'] = this._specularMapOb;
        }

        var useEnvironment = this._useEnvironmentMap;
        if (!useEnvironment) {
            if (typeof this._ubershaderCaps['environmentMap'] != 'undefined') {
                delete this._ubershaderCaps['environmentMap'];
            }
        } else {
            this._ubershaderCaps['environmentMap'] = this._environmentMapOb;
        }

        for (i = 0; i < 4; ++i) {
            var useLight = this._useLights[i];
            if (!useLight) {
                if (typeof this._ubershaderCaps['lighting']['light' + i] != 'undefined') {
                    delete this._ubershaderCaps['lighting']['light' + i];
                }
            } else {
                this._ubershaderCaps['lighting']['light' + i] = this._lights[i];
            }
        }

        var material = this._materialNode;
        if (material) {
            material.setShader( this.buildUberShader(this._ubershaderCaps) );
        }
    };
};

UberMaterial.prototype = new Material();

if (typeof exports === "object") {
    exports.UberMaterial = UberMaterial;
}