Created the following mesh in blender:
Whenever I load it into three.js I receive the following result:
I export to .obj format and triangulate all of my faces. Not sure why this is happening. Below is the threejs code I am using to render the mesh. I use the same code with other meshes and they render as expected. I'm guessing I've done something that three.js doesn't like with this mesh?
<!DOCTYPE html>
<html>
<head>
<title></title>
<script type="text/javascript" src="/js/three.js"></script>
<script type="text/javascript" src="/js/DDSLoader.js"></script>
<script type="text/javascript" src="/js/MTLLoader.js"></script>
<script type="text/javascript" src="/js/OBJLoader.js"></script>
<script type="text/javascript" src="/js/OrbitControls.js"></script>
<script type="text/javascript" src="/js/stats.js"></script>
<script type="text/javascript" src="/js/dat.gui.js"></script>
<style>
body {
/* set margin to 0 and overflow to hidden, to go fullscreen */
margin: 0;
overflow: hidden;
}
</style>
</head>
<body>
<div id="Stats-output">
</div>
<!-- Div which will hold the Output -->
<div id="WebGL-output">
</div>
<!-- Javascript code that runs our Three.js examples -->
<script type="text/javascript">
function init() {
var stats = initStats();
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera(45, window.innerWidth / window.innerHeight, 0.1, 1000);
camera.position.x = 130;
camera.position.y = 40;
camera.position.z = 50;
camera.lookAt(scene.position);
scene.add(camera);
// create a render and set the size
var webGLRenderer = new THREE.WebGLRenderer();
//webGLRenderer.setPixelRatio( window.devicePixelRatio );
webGLRenderer.setClearColor(new THREE.Color(0xffffff, 1.0));
webGLRenderer.setSize(window.innerWidth, window.innerHeight);
webGLRenderer.shadowMapEnabled = true;
var ambient = new THREE.AmbientLight( 0x444444 );
ambient.intensity = 5;
scene.add( ambient );
if('stiletto_switchblade_knife.mtl' !== ''){
THREE.Loader.Handlers.add( /\.dds$/i, new THREE.DDSLoader() );
var mtlLoader = new THREE.MTLLoader();
mtlLoader.setBaseUrl( '/assets/download/mesh/18/' );
mtlLoader.setPath( '/assets/download/mesh/18/' );
mtlLoader.load( 'stiletto_switchblade_knife.mtl', function( materials ) {
materials.preload();
var objLoader = new THREE.OBJLoader();
objLoader.setMaterials( materials );
objLoader.setPath( '/assets/download/mesh/18/' );
objLoader.load( 'stiletto_switchblade_knife.obj', function ( object ) {
//object.scale.set(100, 100, 100);
//object.rotation.x = -0.3;
scene.add( object );
});
});
} else {
var objLoader = new THREE.OBJLoader();
objLoader.setPath( '/assets/download/mesh/18/' );
objLoader.load( 'stiletto_switchblade_knife.obj', function ( object ) {
object.material = new THREE.MeshLambertMaterial({color: 0xFFFFFF});
//object.scale.set(100, 100, 100);
//object.rotation.x = -0.3;
scene.add( object );
});
}
// add the output of the renderer to the html element
document.getElementById("WebGL-output").appendChild(webGLRenderer.domElement);
var controls = new THREE.OrbitControls(camera, webGLRenderer.domElement );
render();
// simple render
function render() {
stats.update();
controls.update();
requestAnimationFrame(render);
webGLRenderer.render(scene, camera);
}
function initStats() {
var stats = new Stats();
stats.setMode(0); // 0: fps, 1: ms
// Align top-left
stats.domElement.style.position = 'absolute';
stats.domElement.style.left = '0px';
stats.domElement.style.top = '0px';
document.getElementById("Stats-output").appendChild(stats.domElement);
return stats;
}
}
window.onload = init;
</script>
</body>
</html>
EDIT
Are meshes required to be watertight in three.js? If so that could be the problem as there are a couple areas that are not in this mesh. That's the only thing I can think of at the moment that differs between this and the meshes that render properly.
Renders like that turned up with OBJ models in three.js R76. It turned out that any object containing a stray "l" (line) element blew up just like what you have shown. I found the bad objects by searching the ASCII OBJ file on "l ", got rid of the strays by selecting and hiding all of the faces, and dealing with whatever was left.
Solved. Turned out I had left a few faces drawn inside of the mesh. This was causing the unexpected behavior. Interesting debugging method. I just started stripping away vertices and rendering with threejs until I found the section that was causing the issue.
Related
I've been attempting to get the SSAO post-processing shader to work with the latest (r77) version of three.js. I've been using the EffectComposer, with the code entirely duplicated from the example page here:
http://threejs.org/examples/webgl_postprocessing_ssao.html
The relevant code being:
var renderPass = new THREE.RenderPass( Engine.scene, Engine.camera );
ssaoPass = new THREE.ShaderPass( THREE.SSAOShader );
ssaoPass.renderToScreen = true;
// ...various ShaderPass setup parameters
Engine.effectComposer = new THREE.EffectComposer( Engine.renderer );
Engine.effectComposer.addPass(renderPass);
Engine.effectComposer.addPass(ssaoPass);
The issue I have been having is that that SSAO doesn't seem to work with SkinnedMeshes. It seems to take into account the position of the meshes before the skinning calculations are performed.
It looks like this:
Problem with SSAO on SkinnedMesh
Does anyone have any experience with this on the latest version? I've looked all over the place, but can't find any documentation about how to start fixing this at all.
I found mention of a fix for this in another SO post (ThreeJS SSAO Shader w/ Skinned/Animated Models), but the solution has been deprecated.
Thanks in advance, and happy to go into more detail if needed.
As requested, here is the complete code for the simple demo page:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<script type="text/javascript" src="js/libs/jquery.min.js"></script>
<script type="text/javascript" src="js/libs/three.min.js"></script>
<script type="text/javascript" src="js/libs/postprocessing/CopyShader.js"></script>
<script type="text/javascript" src="js/libs/postprocessing/EffectComposer.js"></script>
<script type="text/javascript" src="js/libs/postprocessing/MaskPass.js"></script>
<script type="text/javascript" src="js/libs/postprocessing/RenderPass.js"></script>
<script type="text/javascript" src="js/libs/postprocessing/ShaderPass.js"></script>
<script type="text/javascript" src="js/libs/postprocessing/DotScreenShader.js"></script>
<script type="text/javascript" src="js/libs/postprocessing/SSAOShader.js"></script>
<link rel="stylesheet" type="text/css" href="demo.css" />
</head>
<body>
<div id="demo-container"></div>
</body>
</html>
<script>
$(document).ready(function() {
window.doPostPro = 0;
scene = new THREE.Scene();
camera = new THREE.PerspectiveCamera(75, window.innerWidth/window.innerHeight, 1, 1000);
camera.position.set(0, 200, 200);
camera.lookAt(new THREE.Vector3(0, 0, 0));
clock = new THREE.Clock();
// Setup the renderer.
renderer = new THREE.WebGLRenderer({
antialias: true
});
renderer.setPixelRatio( window.devicePixelRatio );
renderer.setSize( window.innerWidth, window.innerHeight );
renderer.setClearColor( 0xFFFFFF );
function setupPostProcessing() {
// Setup render pass
var renderPass = new THREE.RenderPass( scene, camera );
// Setup depth pass
depthMaterial = new THREE.MeshDepthMaterial();
depthMaterial.depthPacking = THREE.RGBADepthPacking;
depthMaterial.blending = THREE.NoBlending;
depthRenderTarget = new THREE.WebGLRenderTarget( window.innerWidth, window.innerHeight, {
minFilter: THREE.LinearFilter,
magFilter: THREE.LinearFilter,
stencilBuffer: true
});
// Setup SSAO pass
ssaoPass = new THREE.ShaderPass( THREE.SSAOShader );
ssaoPass.renderToScreen = true;
//ssaoPass.uniforms[ "tDiffuse" ].value will be set by ShaderPass
ssaoPass.uniforms[ "tDepth" ].value = depthRenderTarget.texture;
ssaoPass.uniforms[ 'size' ].value.set( window.innerWidth, window.innerHeight );
ssaoPass.uniforms[ 'cameraNear' ].value = camera.near;
ssaoPass.uniforms[ 'cameraFar' ].value = camera.far;
//ssaoPass.uniforms[ 'onlyAO' ].value = ( postprocessing.renderMode == 1 );
ssaoPass.uniforms[ 'aoClamp' ].value = 0.3;
ssaoPass.uniforms[ 'lumInfluence' ].value = 0.5;
// Add pass to effect composer
effectComposer = new THREE.EffectComposer( renderer );
effectComposer.addPass( renderPass );
effectComposer.addPass( ssaoPass );
};
setupPostProcessing();
// Load the mesh.
var loader = new THREE.JSONLoader();
loader.load( "js/zombie.js", function( geometry, materials ) {
var originalMaterial = materials[ 0 ];
originalMaterial.skinning = true;
geometry.computeVertexNormals();
var mesh = new THREE.SkinnedMesh(geometry, originalMaterial);
window.animMixer = new THREE.AnimationMixer(mesh);
var animAction = animMixer.clipAction(geometry.animations[0]);
animAction.play();
scene.add(mesh);
});
var ambientLight = new THREE.AmbientLight( 0xCCCCCC );
scene.add( ambientLight );
$("#demo-container").append( renderer.domElement );
function render() {
if ( doPostPro ) {
// Render depth into depthRenderTarget
scene.overrideMaterial = depthMaterial;
renderer.render( scene, camera, depthRenderTarget, true );
// Render renderPass and SSAO shaderPass
scene.overrideMaterial = null;
effectComposer.render();
}
else {
renderer.render( scene, camera );
}
}
function animate() {
requestAnimationFrame( animate );
if ( window.animMixer != undefined ) {
var deltaTime = clock.getDelta();
animMixer.update(deltaTime);
}
render();
}
animate();
$(document).keyup(function(e) {
// P is pressed.
if ( e.which == 80 ) {
window.doPostPro = !window.doPostPro;
}
});
});
</script>
If you are skinning, and using this pattern in your render loop
// Render depth into depthRenderTarget
scene.overrideMaterial = depthMaterial;
renderer.render( scene, camera, depthRenderTarget, true );
you have to make sure to set
depthMaterial.skinning = true;
Thing is, if there are other elements in the scene that are not skinned, doing so will throw errors. In which case, this may be a three.js design issue that will have to be addressed.
three.js r.77
So I am trying to get a JSONLoader to work from threejs.org
Three.js is working for sure because I have no problem creating a cube. But when I try to load a js file throuh JSONLoader then nothing happens.
<html>
<head>
<title>My first Three.js app</title>
<style>
body { margin: 0; }
canvas { width: 100%; height: 100% }
</style>
</head>
<body>
<script src="three.js"></script>
<script>
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera( 75, window.innerWidth/window.innerHeight, 0.1, 1000 );
var renderer = new THREE.WebGLRenderer( { alpha: true } );
renderer.setSize( window.innerWidth, window.innerHeight );
document.body.appendChild( renderer.domElement );
// instantiate a loader
var loader = new THREE.JSONLoader();
// load a resource
loader.load(
// resource URL
'logo.js',
// Function when resource is loaded
function ( geometry, materials ) {
var material = new THREE.MultiMaterial( materials );
var object = new THREE.Mesh( geometry, material );
scene.add( object );
}
);
camera.position.z = 5;
var render = function () {
renderer.setClearColor( 0x000000, 0 );
requestAnimationFrame( render );
renderer.render(scene, camera);
};
render();
</script>
</body>
</html>
As mentioned in the title then the code is copy pasted from threejs own website and should be working.
Can someone help me figure what is going wrong?
here is a fiddle with the script of logo.js https://jsfiddle.net/380z6096/
the object has been exported from 3ds max with the 3ds Max JSExporter
I am using xampp and chrome.
Your camera is inside your geometry.
You can determine the dimensions of your geometry like so
geometry.computeBoundingSphere();
console.log( geometry.boundingSphere );
or
geometry.computeBoundingBox();
console.log( geometry.boundingBox );
Scale your geometry
object.scale.multiplyScalar( 0.01 );
Or move your camera back.
three.js r.75
I am trying to import my own 3D models into a three.js viewport but I keep getting this error:
0x800a138f - JavaScript runtime error: Unable to get property
'geometries' of undefined or null reference
My code:
<html>
<head>
<title>My first Three.js app</title>
<style>
body {
margin: 0;
}
canvas {
width: 100%;
height: 100%;
}
</style>
</head>
<body>
<script src="js/three.min.js"></script>
<script>
// Our Javascript will go here.
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera(75, window.innerWidth / window.innerHeight, 0.1, 1000);
var renderer = new THREE.WebGLRenderer();
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
var json = THREE.JSONLoader("teapot.js"); // I Think this loads the model
var loader = new THREE.JSONLoader();
var result = loader.parse(json, texturePath);
var mesh = new THREE.Mesh(result.geometry, result.materials);
scene.add(mesh);
camera.position.z = 5;
function render() {
requestAnimationFrame(render);
cube.rotation.x += 0.1;
cube.rotation.y += 0.1;
renderer.render(scene, camera);
}
render();
</script>
</body>
</html>
You're loading it wrong, when using the loader, first you declare the loader as such:
var loader = new THREE.JSONLoader();
Then you tell the loader to load your model, since this takes a while, you attach a function to handle adding it to the scene AFTER the loading is done
loader.load('path_to_model', function (geometry) {
var material = new THREE.MeshLambertMaterial({
//whatever material properties you want to use
});
// create a mesh with models geometry and material
var mesh = new THREE.Mesh(
geometry,
material
);
scene.add(mesh);
});
That should do the trick
I've been messing around with Threejs trying to get my sea legs, but I've run into a problem long before I expected to and I can't figure out if there's a mistake in my code or a mistake in the framework (I assume it's mine).
I want to replace an object with another when a button is pressed. My test code (below) loads a cube on the initial load, and I was hoping to replace it with a sphere when a button is pressed. However, that's not happening, and instead I'm getting the error:
TypeError: geometry.addEventListener is not a function
geometry.addEventListener( 'dispose', onGeometryDispose );
My html:
<!doctype html>
<html lang="en">
<head>
<title>My test</title>
<meta charset="utf-8">
</head>
<body style="margin: 0;">
<script src="https://cdnjs.cloudflare.com/ajax/libs/three.js/r71/three.js"></script>
<script src="OrbitControls.js"></script>
<script>
var WIDTH = 500,
HEIGHT = 500;
var scene = new THREE.Scene();
var aspect = WIDTH / HEIGHT;
var camera = new THREE.PerspectiveCamera(75, aspect, 0.1, 1000);
camera.position.set(0,0,5);
scene.add(camera);
var renderer = new THREE.WebGLRenderer();
renderer.setSize( WIDTH , HEIGHT );
document.body.appendChild( renderer.domElement );
var geometry = new THREE.BoxGeometry( 1, 1, 1 );
var material = new THREE.MeshNormalMaterial();
var cube = new THREE.Mesh( geometry, material );
scene.add( cube );
controls = new THREE.OrbitControls(camera, renderer.domElement);
function animate() {
requestAnimationFrame(animate);
renderer.render(scene, camera);
controls.update();
}
animate();
</script>
<div>
<button onclick="updateThing();">Update Thing</button>
</div>
</body>
<script src="scripts.js" type="text/javascript" charset="utf-8"></script>
</html>
My function for making the change when the button is pressed:
function updateThing() {
scene.remove(cube)
var pos = new THREE.Vector3(0, 0, 0);
var geo = new THREE.Sphere(pos, parseFloat(1.4));
var mat = new THREE.MeshNormalMaterial();
sphere = new THREE.Mesh( geo, mat );
scene.add( sphere );
}
Am I doing something wrong?
Orbit controls can be found here: https://github.com/mrdoob/three.js/blob/master/examples/js/controls/OrbitControls.js
I believe you are looking for THREE.SphereGeometry instead of THREE.Sphere:
var geo = new THREE.SphereGeometry(parseFloat(1.4));
See documentation here and here.
Hy!
I'm working with three js(webgl). I was trying to embed html webpage, but somehow it don't wants to work.
Tutorials that I was checking:
http://learningthreejs.com/blog/2013/04/30/closing-the-gap-between-html-and-webgl/
http://stemkoski.github.io/Three.js/CSS3D.html
The stemkoski one was working with three js v58, also v60. But it don't realy wants to work using v68(newest version). I don't get any error message, just a black screen where the website should be.
Also I'm able to do something similiar like http://threejs.org/examples/#css3d_youtube .
My question is is there a workaround, or "hot fix" for this problem because I'm out of ideas.
Thanks for your answers.
---UPDATE---
Then let's say I'm using this code:
<!doctype html>
<html lang="en">
<head>
<title>CSS3D (Three.js)</title>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, user-scalable=no, minimum-scale=1.0, maximum-scale=1.0">
<link rel=stylesheet href="css/base.css"/>
</head>
<body>
<script src="js/Three58.js"></script>
<script src="js/Detector.js"></script>
<script src="js/Stats.js"></script>
<script src="js/OrbitControls.js"></script>
<script src="js/THREEx.KeyboardState.js"></script>
<script src="js/THREEx.FullScreen.js"></script>
<script src="js/THREEx.WindowResize.js"></script>
<!-- new for this example -->
<script src="js/CSS3DRenderer.js"></script>
<!-- jQuery code to display an information button and box when clicked. -->
<script src="js/jquery-1.9.1.js"></script>
<script src="js/jquery-ui.js"></script>
<link rel=stylesheet href="css/jquery-ui.css" />
<link rel=stylesheet href="css/info.css"/>
<script src="js/info.js"></script>
<div id="infoButton"></div>
<div id="infoBox" title="Demo Information">
This three.js demo is part of a collection at
http://stemkoski.github.io/Three.js/
</div>
<!-- ------------------------------------------------------------ -->
<div id="ThreeJS" style="position: absolute; left:0px; top:0px"></div>
<script>
/*
Three.js "tutorials by example"
Author: Lee Stemkoski
Date: July 2013 (three.js v58)
This demo is based on the work of Jerome Etienne:
http://learningthreejs.com/blog/2013/04/30/closing-the-gap-between-html-and-webgl/
*/
// MAIN
// standard global variables
var container, scene, camera, renderer, controls, stats;
var keyboard = new THREEx.KeyboardState();
var clock = new THREE.Clock();
// custom global variables
var rendererCSS;
init();
animate();
// FUNCTIONS
function init()
{
// SCENE
scene = new THREE.Scene();
// CAMERA
var SCREEN_WIDTH = window.innerWidth, SCREEN_HEIGHT = window.innerHeight;
var VIEW_ANGLE = 45, ASPECT = SCREEN_WIDTH / SCREEN_HEIGHT, NEAR = 0.1, FAR = 20000;
camera = new THREE.PerspectiveCamera( VIEW_ANGLE, ASPECT, NEAR, FAR);
scene.add(camera);
camera.position.set(0,150,400);
camera.lookAt(scene.position);
// RENDERER
if ( Detector.webgl )
renderer = new THREE.WebGLRenderer( {antialias:true} );
else
renderer = new THREE.CanvasRenderer();
renderer.setSize(SCREEN_WIDTH, SCREEN_HEIGHT);
container = document.getElementById( 'ThreeJS' );
container.appendChild( renderer.domElement );
// EVENTS
THREEx.WindowResize(renderer, camera);
THREEx.FullScreen.bindKey({ charCode : 'm'.charCodeAt(0) });
// CONTROLS
controls = new THREE.OrbitControls( camera, renderer.domElement );
// STATS
stats = new Stats();
stats.domElement.style.position = 'absolute';
stats.domElement.style.bottom = '0px';
stats.domElement.style.zIndex = 100;
container.appendChild( stats.domElement );
// LIGHT
var light = new THREE.PointLight(0xffffff);
light.position.set(0,250,0);
scene.add(light);
// FLOOR
var floorTexture = new THREE.ImageUtils.loadTexture( 'images/checkerboard.jpg' );
floorTexture.wrapS = floorTexture.wrapT = THREE.RepeatWrapping;
floorTexture.repeat.set( 10, 10 );
var floorMaterial = new THREE.MeshBasicMaterial( { map: floorTexture, side: THREE.DoubleSide } );
var floorGeometry = new THREE.PlaneGeometry(1000, 1000, 10, 10);
var floor = new THREE.Mesh(floorGeometry, floorMaterial);
floor.position.y = -0.5;
floor.rotation.x = Math.PI / 2;
scene.add(floor);
////////////
// CUSTOM //
////////////
var planeMaterial = new THREE.MeshBasicMaterial({color: 0x000000, opacity: 0.1, side: THREE.DoubleSide });
var planeWidth = 360;
var planeHeight = 120;
var planeGeometry = new THREE.PlaneGeometry( planeWidth, planeHeight );
var planeMesh= new THREE.Mesh( planeGeometry, planeMaterial );
planeMesh.position.y += planeHeight/2;
// add it to the standard (WebGL) scene
scene.add(planeMesh);
// create a new scene to hold CSS
cssScene = new THREE.Scene();
// create the iframe to contain webpage
var element = document.createElement('iframe')
// webpage to be loaded into iframe
element.src = "index.html";
// width of iframe in pixels
var elementWidth = 1024;
// force iframe to have same relative dimensions as planeGeometry
var aspectRatio = planeHeight / planeWidth;
var elementHeight = elementWidth * aspectRatio;
element.style.width = elementWidth + "px";
element.style.height = elementHeight + "px";
// create a CSS3DObject to display element
var cssObject = new THREE.CSS3DObject( element );
// synchronize cssObject position/rotation with planeMesh position/rotation
cssObject.position = planeMesh.position;
cssObject.rotation = planeMesh.rotation;
// resize cssObject to same size as planeMesh (plus a border)
var percentBorder = 0.05;
cssObject.scale.x /= (1 + percentBorder) * (elementWidth / planeWidth);
cssObject.scale.y /= (1 + percentBorder) * (elementWidth / planeWidth);
cssScene.add(cssObject);
// create a renderer for CSS
rendererCSS = new THREE.CSS3DRenderer();
rendererCSS.setSize( window.innerWidth, window.innerHeight );
rendererCSS.domElement.style.position = 'absolute';
rendererCSS.domElement.style.top = 0;
rendererCSS.domElement.style.margin = 0;
rendererCSS.domElement.style.padding = 0;
document.body.appendChild( rendererCSS.domElement );
// when window resizes, also resize this renderer
THREEx.WindowResize(rendererCSS, camera);
renderer.domElement.style.position = 'absolute';
renderer.domElement.style.top = 0;
// make sure original renderer appears on top of CSS renderer
renderer.domElement.style.zIndex = 1;
rendererCSS.domElement.appendChild( renderer.domElement );
}
function animate()
{
requestAnimationFrame( animate );
render();
update();
}
function update()
{
if ( keyboard.pressed("z") )
{
// do something
}
controls.update();
stats.update();
}
function render()
{
// remember to call both renderers!
rendererCSS.render( cssScene, camera );
renderer.render( scene, camera );
}
</script>
</body>
</html>
As I mentioned above, this is the code from http://stemkoski.github.io/Three.js/CSS3D.html, and he made his code from another tutorial: http://learningthreejs.com/blog/2013/04/30/closing-the-gap-between-html-and-webgl/ this one.
The problem is, theese are working on three js r58-r60(Let's say theese are old codes). I want to do the same thing with three js r68(the newest version). But somehow, when I launch the same code on r68 that screen goes black instead of showing a html page. This is a known bug, you can check it http://learningthreejs.com/blog/2013/04/30/closing-the-gap-between-html-and-webgl/ here:
Hi Jerome, thanks for your interest. Here are a couple of jsfiddles
copied from stemkoski's github showing the results of Three r58 and
r68. Observe that the only difference between the samples is the
library in use: Threejs 58 (working) - http://jsfiddle.net/jL48v/2/
Threejs 68 (broken) - http://jsfiddle.net/jL48v/3/
I've tried several approaches to get this technique working in r68,
but without much luck so far.
Just realized that I messed up the dependency load order. Here's a
"fixed" broken version of r68 - http://jsfiddle.net/jL48v/4/
But he/she forgot to write the solution. and the v4 not working either.