à    urn:web3d:x3d:fi-vocabulary-3.2`j@°H Immersive@ûB3.2ð
 n ’    `pHidentifier-Ahttps://savage.nps.edu/Savage/Environment/Atmosphere/CloudsProcedural1.x3d@Ahttps://savage.nps.edu/Savage/Environment/Atmosphere/CloudsProcedural1.x3dÿ¡`pFlicense-H	../../license.html@†ÿ¡`pCTODO-H fix links@ˆÿ¡`pFcreator-HCapt Darren W. Murphy@Šÿ¡`pFcreated-H1 November 2007@Œÿ¡`pHdescription-^X3D utilizing ecmascript to develop quasi volumetric 3D clouds from png image textured billboard nodes.@^X3D utilizing ecmascript to develop quasi volumetric 3D clouds from png image textured billboard nodes.ÿ¡`pGmodified-H20 October 2019@ÿ¡`pH generator-7X3D-Edit, https://www.web3d.org/x3d/content/README.X3D-Edit.html@7X3D-Edit, https://www.web3d.org/x3d/content/README.X3D-Edit.htmlÿ¡`pDtitle-HCloudsProcedural1.x3d@’ÿð  V ’      `i@á’ÿ ¢`g@IE0.7854@m€20h    ?€      ?ÈõÃ10hGCP Dz  G$ @/CMainÿ ¢`g@I“@m€20h    ?€      ?¦ff10hG/È D¡@ G+à @/HLight House Towerÿ ¢`g@I“@m€20h    ?€      @   10hG;€ Dz  Fœ@ @/HcenterWestÿ ¢`@[0h        ?€  @Í0h        ?€  ÿ ¢`B1.0xglobal00h¿€          ÿ ¢O FTerrainð ’         E0hBH  BH  BH  0hFÃP     FÃP ð ’	            `-   š"file:///c:/x3d-code/www.web3d.org/x3d/content/examples/Savage/Locations/MontereyBayCalifornia/MontereyBayLargeMesh.x3d","https://savage.nps.edu/Savage/Locations/MontereyBayCalifornia/MontereyBayLargeMesh.x3d","file:///c:/x3d-code/www.web3d.org/x3d/content/examples/Savage/Locations/MontereyBayCalifornia/MontereyBayLargeMesh.wrl","https://savage.nps.edu/Savage/Locations/MontereyBayCalifornia/MontereyBayLargeMesh.wrl"ÿ £ð £E0h?€          ?ÈõÃ0hFÃP     FÃP ð ¤  ’                ’                  FC"ocean.png","https://savage.nps.edu/Savage/Environment/Atmosphere/ocean.png"ÿ ¥ð ¥`T)0gG–d GVØ ÿ ¤ð £ð ¢ð ¢O HPlacemarksð £E0hBH  BH  BH  0hG/È Að  G+à ð ¤`-¤"Lighthouse.x3d","https://savage.nps.edu/Savage/Environment/Atmosphere/Lighthouse.x3d","Lighthouse.wrl","https://savage.nps.edu/Savage/Environment/Atmosphere/Lighthouse.wrl"ÿ £ð ¢ð ¢O ECloudsð £E FCumulusÿ £E ECirrusÿ £R HPixelScript@2ð £`m8HinitializeOnly@ñESFNode›ð ¤E›ÿ £ð £`m8ž@ñŸœð ¤Eœÿ £ð ¤ƒ  (Êecmascript:
function cumulustranslation() // These values designate the boundary location of the cloud
{
	X = 50000*Math.random();          //  X horizontal range
	Y = 1000 + 300*Math.random();	 //  Y vertical base + range
	Z = 50000*Math.random();         // z horizontal range

	randomt = new String(X+' '+Y+' '+Z);

	return randomt;

}


function cumulusscale() // these values scale a cloud within a designated size
{

	maxscale = 1;

	scale = Math.round(9+maxscale*Math.random());
	X = 1.5*scale;
	Y = scale;
	Z = scale;

	randomscale = new String(X+' '+Y+' '+Z);

	return randomscale;

}


function cirrustranslation() // These values designate the boundary location of the cloud
{
	X = 50000*Math.random();          //  X horizontal range
	Y = 8000 + 1000*Math.random();	 //  Y vertical base + range
	Z = 50000*Math.random();         // z horizontal range

	randomt = new String(X+' '+Y+' '+Z);

	return randomt;

}


function cirrusscale() // these values scale a cloud within a designated size
{

	maxscale = 1;

	scale = Math.round(9+maxscale*Math.random());
	X = 1.5*scale;
	Y = 2*Math.random();
	Z = 1.5*scale;

	randomscale = new String(X+' '+Y+' '+Z);

	return randomscale;

}


function cumulussectiontranslation() // These random values place another portion of cumulus type cloud
{

	randomtheta = 6.28319*Math.random();
	randomphi = .7854*Math.random();
	randomradius = 90 + 5*Math.random();//the first whole number should be close to the sectionradius

	X = randomradius*Math.cos(randomtheta)*Math.sin(randomphi);
	Z = randomradius*Math.sin(randomtheta)*Math.sin(randomphi);
	Y = randomradius*Math.cos(randomphi);


	randomt = new String(X+' '+Y+' '+Z);

	return randomt;

}

function cirrussectiontranslation() // These random values place another portion of cirrus type cloud
{

	randomtheta = 6.28319*Math.random();
	randomphi = .7854*Math.random();
	randomradius = 90 + 5*Math.random();//the first whole number should be close to the sectionradius

	X = randomradius*Math.cos(randomtheta)*Math.sin(randomphi);
	Z = randomradius*Math.sin(randomtheta)*Math.sin(randomphi);
	Y = randomradius*Math.cos(randomphi);


	randomt = new String(X+' '+Y+' '+Z);

	return randomt;

}


function rotation() // This random value is for the billboard rotation not used in this script
{


	radians = 6.28*Math.random();

	randomr = new String('0 0 1 ' + radians );


	return randomr;

}

function cumulus()
{

maxi = 10;  // number of clouds

maxj = 5; // denotes how many portions affecting the size of the cloud

maxk = 8;  // number of billboards indicating cloud density

sectionradius = 100;  //radius of individual cloud sections


for (var i=0; i < maxi; i++)
{


CloudStringA = '	Transform {		\n' +
'    scale '+ cumulusscale() + '               	\n' +
'    translation '+ cumulustranslation() + '    \n' +    // cloud placement
'    children [	                                \n';


CloudStringB = new Array();
CloudStringF = new Array();

   	for (var j=0; j < maxj; j++)
   	{

	radius = 0;

	CloudStringB[j]= '  Transform {		    	       \n' +
	'    translation '+ cumulussectiontranslation() + '    \n' +     // section placement
	'    children [	                                       \n';


	CloudStringC = new Array();
	image = new String();

      		for (var k=1; k < maxk; k++)  // maxk value denotes how many textured billboards make up the cloud
      		{


		randomtheta = 6.28319*Math.random();
		randomphi = 1.57079*Math.random();
		radius = radius+(sectionradius/maxk); // radius incremental steps based on billow radius and max billboards

		X = radius*Math.cos(randomtheta)*Math.sin(randomphi);
		Z = radius*Math.sin(randomtheta)*Math.sin(randomphi);
		Y = radius*Math.cos(randomphi);


		if (Y <= 30) //cloud shading and lighting control
  	{
	image = ' "Spheretexture.png" "https://savage.nps.edu/Savage/Environment/Spheretexture.png" \n';
  	}

  		else
  	{
	image = ' "Spheretexture.png" "https://savage.nps.edu/Savage/Environment/Spheretexture.png" \n';
  	}


		Billboardtranslation = new String(X+' '+Y+' '+Z);

		CloudStringC[k] = '	Transform {		                \n' +
		'            translation '+ Billboardtranslation   + '          \n' +     // random billboard placement within radius designated above
		'	  children [	                                        \n' +
		'	      Billboard {	                                \n' +
		'	        axisOfRotation 0 0 0	                        \n' +     // 0 0 0 designates rotation on all axis
		'	        children [	                                \n' +
		'	            Transform {	                		\n' +
		'	              rotation  0 0 0 0 		        \n' +     // a rotation of the individual billboards can be defined
		'	              children [	                        \n' +
		'	                  Shape {	                        \n' +
		'	                    appearance Appearance {	        \n' +
		'				material Material {		\n' +
		'				                }  		\n' +
		'	                      texture ImageTexture {	        \n' +
		'	                        url [ ' + image + ' ]           \n' +
		'	                      }	                                \n' +
		'	                    }	                                \n' +
		'	geometry Sphere {					\n' +
		'	          radius 50					\n' +
		'	        }						\n' +
		'	                  }	                                \n' +
		'	              ]	                                        \n' +
		'	            }	                                        \n' +
		'	       ]	                                        \n' +
		'	   }	                                                \n' +
		'      ]	                                                \n' +
		'     }	                                                        \n';


		}

	CloudStringD = CloudStringC.join(' ');


	CloudStringE = '   ]	                 \n' +
	'	}	                         \n';

	CloudStringF[j] = CloudStringB[j] + CloudStringD +CloudStringE;


	}

CloudStringG = CloudStringF.join(' ');

CloudStringH = '      ]	                                        \n' +
'     }	                                                        \n' +
'#########################################################      \n';

CloudString = CloudStringA + CloudStringG + CloudStringH;


newNode = Browser.createVrmlFromString(CloudString);
Cumulus.children[i] = newNode[0];


   }

}

function cirrus()

{

maxi = 2;  // number of clouds

maxj = 5; // denotes how many portions affecting the size of the cloud

maxk = 8;  // number of billboards indicating cloud density

sectionradius = 1000;  //radius of individual cloud sections


for (var i=0; i < maxi; i++)
{


CloudStringA = '	Transform {		 \n' +
'    scale '+ cirrusscale() + '               	 \n' +
'    translation '+ cirrustranslation() + '      \n' +    // cloud placement
'    children [	                                 \n';


CloudStringB = new Array();
CloudStringF = new Array();

   	for (var j=0; j < maxj; j++)
   	{

	radius = 0;

	CloudStringB[j]= '  Transform {		    	      \n' +
	'    translation '+ cirrussectiontranslation() + '    \n' +     // section placement
	'    children [	                                      \n';


	CloudStringC = new Array();

      		for (var k=1; k < maxk; k++)  // maxk value denotes how many textured billboards make up the cloud
      		{


		randomtheta = 6.28319*Math.random();
		randomphi = 1.57079*Math.random();
		radius = radius+(sectionradius/maxk); // radius incremental steps based on section radius and max billboards

		X = radius*Math.cos(randomtheta)*Math.sin(randomphi);
		Z = radius*Math.sin(randomtheta)*Math.sin(randomphi);
		Y = radius*Math.cos(randomphi);

		Billboardtranslation = new String(X+' '+Y+' '+Z);

		CloudStringC[k] = '	Transform {		                \n' +
		'            translation '+ Billboardtranslation   + '          \n' +     // random billboard placement within radius designated above
		'	  children [	                                        \n' +
		'	      Billboard {	                                \n' +
		'	        axisOfRotation 0 0 0	                        \n' +     // 0 0 0 designates rotation on all axis
		'	        children [	                                \n' +
		'	            Transform {	                		\n' +
		'	              rotation '  + rotation() + '	        \n' +
		'	              children [	                        \n' +
		'	                  Shape {	                        \n' +
		'	                    appearance Appearance {	        \n' +
		'			    material Material {			\n' +
		'			    }					\n' +
 		'	                      texture ImageTexture {	        \n' +
		'	                        url ["cloudtexture3.png" "https://savage.nps.edu/Savage/Environment/cloudtexture1_4.png" ] \n' +
		'	                      }	                                \n' +
		'	                    }	                                \n' +
		'	                    geometry IndexedFaceSet {	        \n' +     // define type of geometry to texture
		'	                      coordIndex [ 0, 1, 2, 3 ]	        \n' +
		'			      solid FALSE		        \n' +
		'	                      coord Coordinate {	        \n' +
		'	                        point [ 500 500 0,	        \n' +     // define size of the geometry. Here 100 meter 2D square.
		'	                                500 -500 0,	        \n' +
		'	                               -500 -500 0,	        \n' +
		'	                               -500 500 0 ]	        \n' +
		'	                      }	                                \n' +
		'	                    }	                                \n' +
		'	                  }	                                \n' +
		'	              ]	                                        \n' +
		'	            }	                                        \n' +
		'	       ]	                                        \n' +
		'	   }	                                                \n' +
		'      ]	                                                \n' +
		'     }	                                                        \n';


		}

	CloudStringD = CloudStringC.join(' ');

	CloudStringE = '   ]	                 \n' +
	'	}	                         \n';

	CloudStringF[j] = CloudStringB[j] + CloudStringD +CloudStringE;


	}

CloudStringG = CloudStringF.join(' ');

CloudStringH = '      ]	                                        \n' +
'     }	                                                        \n' +
'#########################################################      \n';

CloudString = CloudStringA + CloudStringG + CloudStringH;


newNode = Browser.createVrmlFromString(CloudString);
Cirrus.children[i] = newNode[0];

  }

}


function initialize()

{

cumulus();

cirrus();
} ¤ð £ð ð ÿ