Smoke Shader - Frame Buffer

Developer
Omar Shehata
Size
2,672 Kb
Views
56,672
  1. Smoke Shader - Frame Buffer Previews
  2. Smoke Shader - Frame Buffer HTML Codes
  3. Smoke Shader - Frame Buffer CSS Codes
  4. Smoke Shader - Frame Buffer JS Codes

How do I make an smoke shader - frame buffer?

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

Smoke Shader - Frame Buffer Previews
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Smoke Shader - Frame Buffer - Script Codes HTML Codes

<!DOCTYPE html>
<html >
<head> <meta charset="UTF-8"> <title>Smoke Shader - Frame Buffer</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	void main() { vec2 pixel = gl_FragCoord.xy / res.xy; gl_FragColor = texture2D( bufferTexture, pixel ); }	</script> <script src='https://cdnjs.cloudflare.com/ajax/libs/three.js/r71/three.min.js'></script> <script src="js/index.js"></script>
</body>
</html>

Smoke Shader - Frame Buffer - Script Codes CSS Codes

/* We want our scene to span the entire window */	body { margin: 0; }

Smoke Shader - Frame Buffer - 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	},	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();	//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();
Smoke Shader - Frame Buffer - Script Codes
Smoke Shader - Frame Buffer - Script Codes
Home Page Home
Developer Omar Shehata
Username omarshe7ta
Uploaded August 13, 2022
Rating 3
Size 2,672 Kb
Views 56,672
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