Buggy Smoke

Developer
Omar Shehata
Size
3,213 Kb
Views
36,432
  1. Buggy Smoke Previews
  2. Buggy Smoke HTML Codes
  3. Buggy Smoke CSS Codes
  4. Buggy Smoke JS Codes

How do I make an buggy smoke?

What is a buggy smoke? How do you make a buggy smoke? This script and codes were developed by Omar Shehata on 13 August 2022, Saturday.

Buggy Smoke Previews
IQ Test

Buggy Smoke - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Buggy Smoke</title> <link rel="stylesheet" href="css/style.css">
</head>
<body> <script id="fragShader" type="shader-code">	uniform vec2 res;//The width and height of our screen	uniform sampler2D bufferTexture;//Our input texture	uniform vec3 smokeSource;//The x,y are the posiiton. The z is the power/density	void main() { vec2 pixel = gl_FragCoord.xy / res.xy; gl_FragColor = texture2D( bufferTexture, pixel ); //Get the distance of the current pixel from the smoke source float dist = distance(smokeSource.xy,gl_FragCoord.xy); //Generate smoke when mouse is pressed //gl_FragColor.r += smokeSource.z * max(15.0-dist,0.0);	if(dist < 10.0 && smokeSource.z > 0.0){	gl_FragColor.r = 1.0;	} //Smoke diffuse float xPixel = 1.0/res.x;//The size of a single pixel float yPixel = 1.0/res.y; vec4 rightColor = texture2D(bufferTexture,vec2(pixel.x+xPixel,pixel.y)); vec4 leftColor = texture2D(bufferTexture,vec2(pixel.x-xPixel,pixel.y)); vec4 upColor = texture2D(bufferTexture,vec2(pixel.x,pixel.y+yPixel)); vec4 downColor = texture2D(bufferTexture,vec2(pixel.x,pixel.y-yPixel));	//Diffuse equation	float factor = 0.21 * (leftColor.r + rightColor.r + downColor.r + upColor.r - 4.0 * gl_FragColor.r);	float minimum = 0.003;	if(factor >= -minimum && factor < 0.0) factor = -minimum;	if(factor <= minimum && factor > 0.0) factor = minimum*2.0; gl_FragColor.r += factor; }	</script> <script src='http://cdnjs.cloudflare.com/ajax/libs/three.js/r70/three.min.js'></script> <script src="js/index.js"></script>
</body>
</html>

Buggy Smoke - Script Codes CSS Codes

body { margin: 0; }

Buggy Smoke - Script Codes JS Codes

//@author Omar Shehata. 2015.	//We are loading the Three.js library from the cdn here: http://cdnjs.com/libraries/three.js/	var scene;	var camera;	var renderer;	function scene_setup(){	//This is the basic scene setup	scene = new THREE.Scene();	var width = window.innerWidth;	var height = window.innerHeight;	//Note that we're using an orthographic camera here rather than a prespective	camera = new THREE.OrthographicCamera( width / - 2, width / 2, height / 2, height / - 2, 1, 1000 );	camera.position.z = 2;	renderer = new THREE.WebGLRenderer();	renderer.setSize( window.innerWidth, window.innerHeight );	document.body.appendChild( renderer.domElement );	}	//Initialize the Threejs scene	scene_setup();	var bufferScene;	var textureA;	var textureB;	var bufferMaterial;	var plane;	var bufferObject;	var finalMaterial;	var quad;	function buffer_texture_setup(){	//Create buffer scene	bufferScene = new THREE.Scene();	//Create 2 buffer textures	textureA = new THREE.WebGLRenderTarget( window.innerWidth, window.innerHeight, { minFilter: THREE.LinearFilter, magFilter: THREE.NearestFilter});	textureB = new THREE.WebGLRenderTarget( window.innerWidth, window.innerHeight, { minFilter: THREE.LinearFilter, magFilter: THREE.NearestFilter} );	//Pass textureA to shader	bufferMaterial = new THREE.ShaderMaterial( {	uniforms: { bufferTexture: { type: "t", value: textureA }, res : {type: 'v2',value:new THREE.Vector2(window.innerWidth,window.innerHeight)},//Keeps the resolution smokeSource: {type:"v3",value:new THREE.Vector3(0,0,0)}///This keeps the position of the mouse and whether it was clicked or not	},	fragmentShader: document.getElementById( 'fragShader' ).innerHTML	} );	plane = new THREE.PlaneBufferGeometry( window.innerWidth, window.innerHeight );	bufferObject = new THREE.Mesh( plane, bufferMaterial );	bufferScene.add(bufferObject);	//Draw textureB to screen	finalMaterial = new THREE.MeshBasicMaterial({map: textureB});	quad = new THREE.Mesh( plane, finalMaterial );	scene.add(quad);	}	buffer_texture_setup();	//Send position of smoke source with value	var mouseDown = false;	function UpdateMousePosition(X,Y){	var mouseX = X;	var mouseY = window.innerHeight - Y;	bufferMaterial.uniforms.smokeSource.value.x = mouseX;	bufferMaterial.uniforms.smokeSource.value.y = mouseY;	}	document.onmousemove = function(event){	UpdateMousePosition(event.clientX,event.clientY)	}	document.onmousedown = function(event){	mouseDown = true;	bufferMaterial.uniforms.smokeSource.value.z = 0.1;	}	document.onmouseup = function(event){	mouseDown = false;	bufferMaterial.uniforms.smokeSource.value.z = 0;	}	//Render everything!	function render() { requestAnimationFrame( render ); //Draw to textureB renderer.render(bufferScene,camera,textureB,true); //Swap textureA and B var t = textureA; textureA = textureB; textureB = t; quad.material.map = textureB; bufferMaterial.uniforms.bufferTexture.value = textureA; //Finally, draw to the screen renderer.render( scene, camera );	}	render();
Buggy Smoke - Script Codes
Buggy Smoke - Script Codes
Home Page Home
Developer Omar Shehata
Username omarshe7ta
Uploaded August 13, 2022
Rating 3
Size 3,213 Kb
Views 36,432
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