class Object3D 
{
    constructor()
    {
        this.posVBO = gl.createBuffer();
        this.colorVBO = gl.createBuffer();
        this.indexVBO = gl.createBuffer();

		this.positions = [];
		this.indices = [];
		this.colors = [];

		this.position = [0, 0, 0];
		this.orientation = [0, 0, 0];
		this.scale = [1, 1, 1];
		this.modelMatrix;
		this.SetModelMatrix();
    }

		getRandomFloat(min, max) {
			return Math.random() * (max-min) + min;
		}

    initBuffers()
    {
    // Create VBO for positions and activate it
	gl.bindBuffer(gl.ARRAY_BUFFER, this.posVBO);

    // Fill VBO with positions
	gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(this.positions), gl.STATIC_DRAW);

	// Create VBO for colors and activate it
	gl.bindBuffer(gl.ARRAY_BUFFER, this.colorVBO);

    // Fill VBO with colors
	gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(this.colors), gl.STATIC_DRAW);

	// Create VBO for indices and activate it
	gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, this.indexVBO);

	// Fill VBO with indices
	gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, new Uint16Array(this.indices), gl.STATIC_DRAW);
    }

	SetModelMatrix(position = this.position, orientation = this.orientation, scale = this.scale)
	{
		this.position = position;
		this.orientation = [orientation[0] * Math.PI / 180, orientation[1] * Math.PI / 180, orientation[2] * Math.PI / 180]; //Convert the orientation to RAD
		this.scale = scale;
		
		this.modelMatrix = mat4.create();
		mat4.scale(this.modelMatrix, this.modelMatrix, scale);
		mat4.rotate(this.modelMatrix, this.modelMatrix, orientation[1], [0, 1, 0]); // orientation nimmt eine zahl, keinen vektor wie in den todos vorgegeben
		mat4.translate(this.modelMatrix, this.modelMatrix, position);
		
		
	}

	UpdateUniforms () 
	{	
		const modelLoc = gl.getUniformLocation(program, "modelMatrix");
		gl.uniformMatrix4fv(modelLoc, false, this.modelMatrix);
	}

    render()
    {
    
    // Link data in VBO to shader variables
	gl.bindBuffer(gl.ARRAY_BUFFER, this.posVBO);
	gl.enableVertexAttribArray(posLoc);
	gl.vertexAttribPointer(posLoc, 3, gl.FLOAT, false, 0, 0);

	this.UpdateUniforms();

    // Link data in VBO to shader variables
    gl.bindBuffer(gl.ARRAY_BUFFER, this.colorVBO);
	gl.enableVertexAttribArray(colorLoc);
	gl.vertexAttribPointer(colorLoc, 4, gl.FLOAT, false, 0, 0);

	// Render
	gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, this.indexVBO);
	gl.drawElements(gl.TRIANGLES, this.indices.length, gl.UNSIGNED_SHORT, 0);
    }
}

class Insel extends Object3D
{
    constructor()
    {
        super();

        this.positions = 
        [
			-0.344503,-0.106899,-2.313329,
			0.254658,0.065420,-2.430170,
			0.506020,-0.293147,-2.207084,
			1.415955,0.064912,-1.957500,
			1.489208,-0.318759,-1.320762,
			1.685851,0.084184,-1.268915,
			2.014675,-0.126122,-0.782958,
			0.957233,-1.089151,-0.905606,
			0.454708,-1.256676,-0.897711,
			0.810208,-0.709404,-1.141590,
			0.739686,-1.249709,-0.541415,
			0.231851,-1.904112,-0.621845,
			0.052641,-1.633897,-0.758536,
			-0.020753,-0.743329,-1.377161,
			1.364762,-0.324582,0.647285,
			2.074500,0.090083,0.068582,
			1.608835,0.037777,0.559365,
			1.955554,-0.191974,0.132568,
			1.393132,0.037777,1.383312,
			1.210661,-0.322174,1.134609,
			0.514977,-0.286422,1.576757,
			0.507135,-1.581211,0.348922,
			0.342563,-2.052501,-0.027325,
			0.620568,-1.491335,-0.146730,
			0.745909,-0.723539,0.485115,
			0.089439,-1.345612,0.360167,
			1.089500,-0.770651,-0.314462,
			-0.123718,-0.298339,1.611730,
			-0.930959,0.037777,1.550149,
			-0.866234,-0.291222,1.300128,
			-0.414258,0.037777,1.808618,
			-1.444312,-0.282136,0.794076,
			-1.591571,0.097928,0.827036,
			-1.839477,-0.177971,0.145553,
			-0.936850,-0.751093,-0.176985,
			-0.611777,-1.317411,-0.262516,
			-0.326162,-1.310280,0.225784,
			0.289486,-0.743127,0.679448,
			0.020776,-1.770522,0.330532,
			-1.675519,-0.336500,-0.606829,
			-1.607249,0.010755,-1.680275,
			-0.625318,-0.725192,-1.039731,
			-2.011082,0.043485,-0.744422,
			-1.247727,0.059337,-1.332687,
			-0.934732,-0.314137,-1.943344,
			-0.184171,-0.491687,-2.096484,
			-0.707720,0.065178,-2.205832,
			-0.350659,-1.373304,-0.758204,
			-0.299529,-2.155551,-0.308846,
			-0.086080,-2.478361,-0.004677,
			0.091215,-2.267556,0.130842,
			-0.260030,-2.240649,0.060849,
			-0.470828,-1.954876,0.024811,
			-0.278168,0.037777,-0.209083,
			-0.914878,0.210568,-1.267986,
			-0.862298,0.231412,-0.781910,
			-0.302799,0.520691,-1.301783,
			-1.068480,0.101026,-0.360536,
			-1.736910,0.103204,0.106553,
			0.236277,0.037777,0.701510,
			0.656348,0.037777,-0.098120,
			0.501631,0.037777,1.688231,
			1.034499,0.275328,-1.269756,
			0.471459,0.267036,-1.698558,
			0.637660,0.376390,-1.207861,
			0.812177,0.491673,-0.567514,
			1.244986,0.398908,-0.324291,
			1.002755,0.639249,-0.717163,
			1.381545,0.288786,-0.765328,
			1.348978,0.284964,-1.076072,
			-0.505260,0.213488,-1.704558,
			-0.221831,0.306144,-1.838428,
			-0.274246,0.065420,-2.359878,
			2.054775,0.091828,-0.677912,
			-0.148262,0.773865,-0.947432,
			0.101020,0.922236,-0.839739,
			0.312442,0.779166,-1.109731,
			-0.262315,0.721321,-1.533752,
			-0.404757,0.197895,-0.782219,
			0.568488,0.537125,-0.913448,
			0.115069,0.760356,-1.450921,
			-0.061115,0.654189,-0.643377,
			0.205810,0.801703,-0.757537,
			0.344937,0.262088,-0.492076,
			0.077232,0.934717,-1.202342,
			-0.102879,0.422805,-0.489015,
			-0.269697,0.566033,-0.874217,
			-0.186512,0.743264,-1.152426
        ];

        this.indices = 
        [
            0,1,2,
			3,4,2,
			5,6,4,
			7,8,9,
			8,10,11,
			9,12,13,
			14,15,16,
			14,6,17,
			6,15,17,
			14,18,19,
			18,20,19,
			21,22,23,
			24,25,21,
			24,23,26,
			27,28,29,
			20,30,27,
			28,31,29,
			32,33,31,
			34,35,36,
			36,25,37,
			36,38,25,
			39,40,41,
			40,42,43,
			33,42,39,
			40,44,41,
			44,0,45,
			40,46,44,
			46,0,44,
			41,12,47,
			47,12,48,
			41,35,34,
			48,35,47,
			48,11,49,
			11,50,49,
			50,51,49,
			50,52,51,
			51,48,49,
			53,32,28,
			54,55,56,
			57,58,32,
			59,16,60,
			28,59,53,
			59,61,18,
			62,63,64,
			65,66,67,
			68,5,69,
			70,43,54,
			63,1,71,
			71,72,46,
			13,45,2,
			9,4,7,
			4,26,7,
			26,14,24,
			26,6,14,
			19,37,24,
			37,29,36,
			29,34,36,
			44,13,41,
			2,1,3,
			2,45,0,
			0,72,1,
			9,2,4,
			3,5,4,
			5,73,6,
			7,10,8,
			7,26,10,
			9,8,12,
			8,11,12,
			14,17,15,
			6,73,15,
			14,16,18,
			18,61,20,
			24,21,23,
			21,38,22,
			24,37,25,
			21,25,38,
			26,23,10,
			23,22,10,
			27,30,28,
			20,61,30,
			28,32,31,
			32,58,33,
			36,35,52,
			74,75,76,
			36,52,38,
			40,39,42,
			33,58,42,
			40,43,46,
			46,72,0,
			41,13,12,
			41,47,35,
			48,52,35,
			48,12,11,
			11,22,50,
			11,10,22,
			50,38,52,
			22,38,50,
			48,51,52,
			53,57,32,
			43,42,57,
			57,42,58,
			59,18,16,
			28,30,59,
			59,30,61,
			5,62,69,
			60,16,15,
			66,73,68,
			71,70,77,
			63,3,1,
			71,1,72,
			13,2,9,
			4,6,26,
			14,19,24,
			19,20,37,
			37,27,29,
			37,20,27,
			29,31,34,
			31,33,34,
			34,39,41,
			34,33,39,
			44,45,13,
			55,78,56,
			59,60,53,
			79,60,65,
			77,56,80,
			81,82,75,
			82,76,75,
			60,76,83,
			76,80,84,
			53,83,85,
			86,74,87,
			64,76,79,
			74,84,87,
			53,60,83,
			78,85,86,
			67,64,79,
			67,79,65,
			67,66,68,
			67,69,62,
			67,68,69,
			60,66,65,
			67,62,64,
			62,3,63,
			68,73,5,
			5,3,62,
			66,15,73,
			79,76,60,
			64,63,76,
			60,15,66,
			76,82,83,
			85,82,81,
			85,83,82,
			74,85,81,
			56,78,86,
			56,87,84,
			56,86,87,
			56,84,80,
			71,80,63,
			53,55,57,
			56,77,70,
			56,70,54,
			43,55,54,
			70,46,43,
			71,46,70,
			76,63,80,
			86,85,74,
			74,76,84,
			78,53,85,
			71,77,80,
			53,78,55,
			43,57,55,
			74,81,75
        ];

        this.colors = [];
        for(var i = 0; i < this.positions.length; i += 3) 
        {
						let r = this.getRandomFloat(0.4, 0.7);
						let g = this.getRandomFloat(0.4, 0.6);
						let b = this.getRandomFloat(0.4, 0.45);

						this.colors.push(r, g, b, 1);
        }

        this.initBuffers();
    }
}

class River extends Object3D
{
    constructor()
    {
        super();

        this.positions = 
        [
            0.0,  0.0, 14.0, 	 // index 0
			 0.75, 0.0, 12.5, 	 // index 1
			 1.25, 0.0, 12.5, 	 // index 2
			 1.0,  0.0, 11.0, 	 // index 3
			 2.0,  0.0, 11.0, 	 // index 4
			 0.75, 0.0,  9.5, 	 // index 5
			 2.25, 0.0,  9.5, 	 // index 6
			 0.0,  0.0,  8.0, 	 // index 7
			 2.0,  0.0,  8.0, 	 // index 8
			-2.25, 0.0,  6.1875, // index 9
			 0.25, 0.0,  6.1875, // index 10
			-3.0,  0.0,  4.0, 	 // index 11
			 0.0,  0.0,  4.0, 	 // index 12
			-2.25, 0.0,  1.8125, // index 13
			 1.25, 0.0,  1.8125, // index 14
			 0.0,  0.0,  0.0, 	 // index 15
			 4.0,  0.0,  0.0, 	 // index 16
			 0.0, -7.0,  0.0, 	 // index 17 -> additional for waterfall
			 4.0, -6.0,  0.0  	 // index 18 -> additional for waterfall
        ];

        this.indices = 
        [
            0, 1, 2,
			1, 2, 3,
			2, 3, 4,
			3, 4, 5,
			4, 5, 6,
			5, 6, 7,
			6, 7, 8,
			7, 8, 9,
			8, 9, 10,
			9, 10, 11,
			10, 11, 12,
			11, 12, 13,
			12, 13, 14,
			13, 14, 15,
			14, 15, 16,
			15, 16, 17, // additional for waterfall
			16, 17, 18  // additional for waterfall
        ];

        this.colors = [];
        for(var i = 0; i < this.positions.length; i += 3) {
					let r = this.getRandomFloat(0.1, 0.2);
					let g = this.getRandomFloat(0.2, 0.6);
					let b = this.getRandomFloat(0.6, 0.7);

					this.colors.push(r, g, b, 1);
        }

        this.initBuffers();
    }


}

class Tree extends Object3D 
{
	constructor() 
	{
		super();

		this.positions = [
				-0.056969,0.301313,0.059775,
				-0.056969,0.301313,-0.040876,
				-0.055153,0.236174,-0.050744,
				-0.055153,0.236174,-0.050744,
				0.045498,0.236174,-0.050744,
				0.045498,0.236174,-0.050744,
				0.183358,0.293767,-0.010892,
				0.183358,0.293767,0.016715,
				-0.055153,0.236174,0.049907,
				0.045498,0.236174,0.049907,
				-0.055153,0.051740,0.049907,
				0.045498,0.051740,0.049907,
				0.043682,0.301313,0.059775,
				-0.037898,0.415271,0.149025,
				-0.093419,0.415271,0.149025,
				-0.037898,0.415271,0.093504,
				-0.093419,0.415271,0.093504,
				0.043682,0.301313,-0.040876,
				0.008874,0.422507,-0.242378,
				0.069244,0.422507,-0.242378,
				0.043682,0.301313,-0.040876,
				-0.056969,0.301313,-0.040876,
				0.007785,0.461577,-0.236459,
				0.068155,0.461577,-0.236459,
				0.182859,0.311634,0.019422,
				0.182859,0.311634,-0.008185,
				-0.079447,0.009962,0.074201,
				0.045498,0.051740,-0.050744,
				-0.055153,0.051740,-0.050744,
				-0.079447,0.009962,-0.075038,
				0.069792,0.009962,-0.075038,
				0.069792,0.009962,0.074201,
				-0.023604,0.642852,-0.220543,
				-0.139997,0.499304,-0.220543,
				0.131748,0.574773,-0.100629,
				0.281596,0.451252,-0.218185,
				0.128755,0.410586,-0.109847,
				0.070558,0.502573,-0.052865,
				-0.127460,0.423836,-0.288955,
				-0.139997,0.499304,-0.357368,
				0.164721,0.355756,-0.357368,
				0.070558,0.497457,-0.498071,
				0.202360,0.582881,-0.462644,
				0.258592,0.543865,-0.243667,
				0.239636,0.235546,-0.001961,
				0.322547,0.294289,0.056497,
				0.207968,0.275752,0.097434,
				0.290802,0.292476,-0.067686,
				0.137152,0.290442,0.003639,
				0.207968,0.279664,-0.113150,
				0.305492,0.374381,-0.000033,
				0.271305,0.366839,0.086037,
				0.156725,0.378237,0.060204,
				0.156725,0.378237,-0.060271,
				0.271305,0.378237,-0.097501,
				0.239636,0.412997,0.003822,
				-0.036268,0.361529,0.163458,
				0.091404,0.426523,0.255533,
				-0.091304,0.397046,0.313238,
				0.173261,0.530724,0.313832,
				0.211194,0.504732,0.151857,
				-0.199772,0.427673,0.169213,
				-0.091304,0.415891,0.027848,
				0.084198,0.366894,0.069797,
				0.241174,0.620887,0.254329,
				-0.125322,0.487354,0.416054,
				0.033749,0.468629,0.412686,
				-0.042797,0.620887,0.521313,
				-0.309859,0.487355,0.162063,
				-0.248280,0.463910,0.311354,
				-0.326769,0.617539,0.192386,
				-0.125322,0.487354,-0.091928,
				-0.248280,0.463910,0.012771,
				-0.218301,0.620887,-0.049390,
				0.173261,0.487354,0.005089,
				0.032055,0.467037,-0.060038,
				0.132707,0.620887,-0.079497,
				0.132707,0.620887,0.403623,
				-0.218301,0.620887,0.339866,
				-0.326769,0.620887,0.069796,
				-0.042797,0.615104,-0.156346,
				0.241174,0.620887,0.069796,
				0.053601,0.742690,0.364031,
				0.168557,0.738438,0.269407,
				0.005710,0.823999,0.349044,
				-0.258855,0.754420,0.319037,
				-0.121286,0.777864,0.403622,
				-0.169792,0.874880,0.254329,
				-0.258855,0.754420,0.005089,
				-0.296788,0.777864,0.162063,
				-0.169792,0.874880,0.069797,
				0.010880,0.723391,-0.015800,
				-0.121286,0.777864,-0.079496,
				0.005710,0.846612,0.024079,
				0.224265,0.754419,0.162063,
				0.145085,0.753424,0.056032,
				0.114178,0.853428,0.145975,
				-0.042797,0.900194,0.183269
			];

		this.indices = [
				0,1,2,
				2,3,4,
				5,6,7,
				0,8,9,
				8,10,11,
				12,13,14,
				15,16,14,
				17,15,13,
				17,1,16,
				1,0,14,
				3,18,19,
				5,4,20,
				17,20,21,
				1,21,3,
				22,23,19,
				20,4,19,
				21,20,23,
				21,22,18,
				24,7,6,
				12,9,7,
				12,24,25,
				5,17,25,
				11,10,26,
				9,11,27,
				5,27,28,
				2,28,10,
				29,30,31,
				11,31,30,
				28,27,30,
				10,28,29,
				32,33,34,
				35,34,36,
				33,36,37,
				33,38,36,
				36,34,37,
				33,39,38,
				38,39,40,
				41,32,42,
				36,38,40,
				34,35,43,
				39,32,41,
				41,42,40,
				40,39,41,
				42,34,43,
				34,33,37,
				42,35,40,
				32,39,33,
				32,34,42,
				43,35,42,
				35,36,40,
				44,45,46,
				45,44,47,
				44,46,48,
				44,48,49,
				44,49,47,
				45,47,50,
				46,45,51,
				48,46,52,
				49,48,53,
				47,49,54,
				45,50,51,
				46,51,52,
				48,52,53,
				49,53,54,
				47,54,50,
				51,50,55,
				52,51,55,
				53,52,55,
				54,53,55,
				50,54,55,
				56,57,58,
				59,57,60,
				56,58,61,
				56,61,62,
				56,62,63,
				59,60,64,
				65,66,67,
				68,69,70,
				71,72,73,
				74,75,76,
				59,64,77,
				65,67,78,
				68,70,79,
				71,73,80,
				74,76,81,
				82,83,84,
				85,86,87,
				88,89,90,
				91,92,93,
				94,95,96,
				58,66,65,
				58,57,66,
				57,59,66,
				60,63,74,
				60,57,63,
				57,56,63,
				61,69,68,
				61,58,69,
				58,65,69,
				62,72,71,
				62,61,72,
				61,68,72,
				63,75,74,
				63,62,75,
				62,71,75,
				64,81,94,
				64,60,81,
				60,74,81,
				67,77,82,
				67,66,77,
				66,59,77,
				70,78,85,
				70,69,78,
				69,65,78,
				73,79,88,
				73,72,79,
				72,68,79,
				76,80,91,
				76,75,80,
				75,71,80,
				77,83,82,
				77,64,83,
				64,94,83,
				78,86,85,
				78,67,86,
				67,82,86,
				79,89,88,
				79,70,89,
				70,85,89,
				80,92,91,
				80,73,92,
				73,88,92,
				81,95,94,
				81,76,95,
				76,91,95,
				84,96,97,
				84,83,96,
				83,94,96,
				87,84,97,
				87,86,84,
				86,82,84,
				90,87,97,
				90,89,87,
				89,85,87,
				93,90,97,
				93,92,90,
				92,88,90,
				96,93,97,
				96,95,93,
				95,91,93,
				18,22,19,
				8,0,2,
				5,2,4,
				9,5,7,
				12,0,9,
				9,8,11,
				0,12,14,
				13,15,14,
				12,17,13,
				15,17,16,
				16,1,14,
				4,3,19,
				17,5,20,
				1,17,21,
				2,1,3,
				23,20,19,
				22,21,23,
				3,21,18,
				25,24,6,
				24,12,7,
				17,12,25,
				6,5,25,
				31,11,26,
				5,9,27,
				2,5,28,
				8,2,10,
				26,29,31,
				27,11,30,
				29,28,30,
				26,10,29
			];

		this.colors = [];
		for(var i = 0; i < this.positions.length; i += 3) {
			let r = this.getRandomFloat(0.3, 0.4);
			let g = this.getRandomFloat(0.4, 0.6);
			let b = this.getRandomFloat(0.1, 0.2);

			this.colors.push(r, g, b, 1);
		}

		this.initBuffers();
	}
}

class Cloud extends Object3D 
{

	constructor() {

		super();

		this.positions = [
				-0.308265,-0.282990,-0.001417,
				0.101554,-0.243033,0.459730,
				-0.309308,-0.125191,0.744740,
				0.505238,-0.184567,0.783138,
				0.286346,-0.089592,-0.001417,
				-0.681349,-0.318752,-0.001417,
				-0.309308,-0.233630,-0.747573,
				0.101554,-0.065793,-0.462563,
				0.469048,0.098790,0.415557,
				-0.193767,-0.184567,1.268031,
				0.183178,-0.259167,1.205894,
				-0.000570,0.000000,1.517511,
				-0.963457,-0.122647,-0.001417,
				-0.676801,-0.160374,0.744743,
				-0.860548,0.000000,0.459731,
				-0.193767,-0.184567,-1.270864,
				-0.676801,-0.135416,-0.747576,
				-0.411437,0.000000,-1.208735,
				0.310058,-0.184567,-0.785971,
				0.183178,-0.123648,-1.208727,
				0.410298,0.000000,-1.208735,
				0.410298,0.000000,1.345405,
				-0.384104,0.000000,1.205901,
				-0.860548,0.000000,-0.462565,
				-0.000570,0.000000,-1.598620,
				0.384591,0.090319,-0.462565,
				0.192628,0.380510,1.268031,
				0.480481,0.216971,0.744743,
				-0.002332,0.213378,0.631682,
				-0.624286,0.240846,0.783138,
				-0.184317,0.365906,1.039482,
				-0.605569,0.380903,0.277674,
				-0.701558,0.184567,-0.640105,
				-0.902876,0.216971,-0.001417,
				-0.352763,0.239456,-0.319506,
				0.192628,0.247332,-1.168216,
				-0.184317,0.414270,-1.208727,
				-0.014225,0.327900,-0.747573,
				0.272043,0.363024,-0.001417,
				0.344697,0.335558,-0.747576,
				0.012647,0.279427,-0.001417,
				-0.280090,0.522819,0.081168
			];

		this.indices = [
				0,1,2,
				3,1,4,
				0,2,5,
				0,5,6,
				0,6,7,
				3,4,8,
				9,10,11,
				12,13,14,
				15,16,17,
				18,19,20,
				3,8,21,
				9,11,22,
				12,14,23,
				15,17,24,
				18,20,25,
				26,27,28,
				29,30,31,
				32,33,34,
				35,36,37,
				38,39,40,
				2,10,9,
				2,1,10,
				1,3,10,
				4,7,18,
				4,1,7,
				1,0,7,
				5,13,12,
				5,2,13,
				2,9,13,
				6,16,15,
				6,5,16,
				5,12,16,
				7,19,18,
				7,6,19,
				6,15,19,
				8,25,38,
				8,4,25,
				4,18,25,
				11,21,26,
				11,10,21,
				10,3,21,
				14,22,29,
				14,13,22,
				13,9,22,
				17,23,32,
				17,16,23,
				16,12,23,
				20,24,35,
				20,19,24,
				19,15,24,
				21,27,26,
				21,8,27,
				8,38,27,
				22,30,29,
				22,11,30,
				11,26,30,
				23,33,32,
				23,14,33,
				14,29,33,
				24,36,35,
				24,17,36,
				17,32,36,
				25,39,38,
				25,20,39,
				20,35,39,
				28,40,41,
				28,27,40,
				27,38,40,
				31,28,41,
				31,30,28,
				30,26,28,
				34,31,41,
				34,33,31,
				33,29,31,
				37,34,41,
				37,36,34,
				36,32,34,
				40,37,41,
				40,39,37,
				39,35,37
			];

		this.colors = [];
		for(var i = 0; i < this.positions.length; i += 3) {
			let gray = this.getRandomFloat(0.8, 0.9);

			this.colors.push(gray, gray, gray, 1);
		}

		this.initBuffers();
	}
}