Three.js r62
I have a scene from .obj file with a few meshes.
https://dl.dropboxusercontent.com/u/8913924/terrain/index.html
I try to apply a texture to the "terrain" object.
Result is an invisible/transparent texture.
(if a texture applied to any other objects in the scene - everything seems ok)
check the demo above.
Notes:
.mtl file is empty;
Upload a texture and apply the one to all the objects of the scene:
/* prepare the texture */
var texture = THREE.ImageUtils.loadTexture( 'crate.gif' );
texture.needsUpdate = true;
Apply this texture to terrain and all other objects:
if ( ('string' == typeof o.type) && ( 'terrain' == o.type)){
/*work with terrain*/
//object.children[i].material = object.children[i].material.clone();
object.children[i] = new THREE.Mesh (object.children[i].geometry.clone(), object.children[i].material.clone());
object.children[i].material.color.setHex(0xffffff);
object.children[i].material.map = texture;
object.children[i].material.ownMaterial = true;
//console.log('terrain colored');
} else {
/*work with all other objects*/
object.children[i].material = object.children[i].material.clone();
object.children[i].material.ownMaterial = true;
object.children[i].material.map = texture;
}
Related
I'm trying to map an Image onto my GLB import, however the GLB is just showing up as black. Not really sure where I'm going wrong here.
let textureLoader= new THREE.TextureLoader();
let texture = textureLoader.load("images/pexels-luis-quintero-2471234.jpeg");
texture.flipY = true;
gltfLoader.load( file.path, (gltf) => {
gltf.scene.traverse( (child, key) => {
if(child.isMesh){
child.material = new THREE.MeshBasicMaterial();
let material = new THREE.SpriteMaterial( { map: texture } );
let sprite = new THREE.Sprite( material );
child.material.map = sprite;
}
});
** Added the texture to :-
child.material.map = texture
However the image does not fit to the dimensions of the GLB
An instance of THREE.Sprite is a 3D object similar to THREE.Mesh. You can't assign a sprite to the map property of a material. Do this:
child.material = new THREE.MeshBasicMaterial();
child.material.map = texture;
Besides, if you add a manually loaded color texture to a glTF asset, make sure to add:
texture.encoding = THREE.sRGBEncoding;
I'm having this weird issue, my 3D object is only taking 1 pixel (bottom left) of my texture, this is how i'm loading the object
loaderFrame.load('./models/filterFrame/filterFrame.json',(geometry) =>
{
const mat = new THREE.MeshBasicMaterial({
map: new THREE.TextureLoader().load('./models/filterFrame/textura_polar.jpeg'),
transparent: true,
morphTargets: true
});
mat.transparent = true;
// mat.morphTargets = true;
frameMesh = new THREE.Mesh(geometry, mat);
frameMesh.scale.multiplyScalar(frameOptions.frameScale);
frameMesh.frustumCulled = false;
frameMesh.transparent = true;
frameMesh.renderOrder = 0;
}
);
This is because your loaded object doesn't have proper UV mapping. If UVs are nonexistent, or if they're all 0, 0, then it's only going to sample from the bottom-left corner of your texture.
To fix this, open your model in a 3D editor and make sure the UVs are properly positioned across the texture plane. I don't know what your model looks like, but here's a basic example:
Moving on from yesterday. I'm swapping out a texture on a .GLTF on page refresh. The texture now works fine and dandy...
But only on files that have no animation. The texture update however, seems to stop them in their literal tracks. I've not sure what's causing it or how to reload the animations.
Here's the code:
var creaturePath = "models/gltf/creature/";
var creatureFile = "creature_roar.gltf";
// load the model
var loader = new GLTFLoader().setPath( creaturePath ); // creature
loader.load( creatureFile, function ( gltf )
{
gltf.scene.traverse( function ( child )
{
if ( child.isMesh )
{
// override textures
texture.flipX = false;
texture.flipY = false;
my_material = new THREE.MeshBasicMaterial({map: texture});
// child.material = my_material; // this is the problem line
texture.needsUpdate = true;
}
} );
var model = gltf.scene;
If you replace the material, you have to ensure to set MeshBasicMaterial.skinning and/or MeshBasicMaterial.morphTargets to true. Otherwise skeletal and/or morph target animation won't be supported by the material.
three.js R113
I've got a textured model in three.js and I want to be able to swap out the texture defined in the .gltf file when the page loads. I've looked here for inspiration.
"images": [
{
"uri": "flat_baseColor.png"
},
// etc
So to update the texture I do
var images = [
"./textures/01.jpg",
// "./textures/01.jpg",
];
var texture = new THREE.TextureLoader().load( images[0] );
var my_material = new THREE.MeshBasicMaterial({map: texture});
// load the model
var loader = new GLTFLoader().setPath( 'models/gltf/' ); // trex
loader.load( 'creature_posed.gltf', function ( gltf )
{
gltf.scene.traverse( function ( child )
{
if ( child.isMesh )
{
// The textures go for a double flip, I have no idea why
// Texture compensation
texture.flipX = false;
texture.flipY = false;
child.material = my_material;
texture.needsUpdate = true;
}
} );
var model = gltf.scene;
Only the texture is considerably pale. :(
I've tested it against itself, so it's not the texture). What have a missed out?
When loading textures you'll need to pay attention to colorspace: if the texture has color data (like .map or .emissiveMap) it's probably sRGB.
texture.encoding = THREE.sRGBEncoding;
See GLTFLoader docs and color management in three.js. This assumes that renderer.outputEncoding = THREE.sRGBEncoding as well.
three.js r113
I'm trying to load a model from Blender, apply a PointsMaterial to it and animate it. So far, I've been able to load the model and animate it successfully as long as I use a material other than THREE.PointsMaterial to create the mesh.
When I create a THREE.Points object, the animation doesn't play. I noticed that when I set the PointsMaterial's morphTargets property to true, there's a warning saying that there is no such property of PointsMaterial. Does Threejs not support animation of Points objects using morph targets?
monster refers to a mesh that works when animated. It uses the loaded geometry and material. ParticleSystem is the the THREE.Points object.
Code:
function loadObject(path){
var loader = new THREE.JSONLoader();
loader.load(
path,
function(geometry, materials){
var material = materials[ 0 ];
material.morphTargets = true;
material.color.setHex( 0xffaaaa );
monster = new THREE.Mesh( geometry, materials );
monster.position.set( 0, 0, 0 );
var s = .003;
monster.scale.set( s, s, s );
var particleMaterial = new THREE.PointsMaterial({
color: 0xffffff,
size: .005,
morphTargets: true
});
particleSystem = new THREE.Points(geometry, particleMaterial);
particleSystem.morphTargetInfluences = monster.morphTargetInfluences;
particleSystem.morphTargetDictionary = monster.morphTargetDictionary;
particleSystem.position.set(0, 0, 0);
particleSystem.scale.set(s, s, s);
particleSystem.matrixAutoUpdate = false;
particleSystem.updateMatrix();
particleSystem.geometry.verticesNeedUpdate = true;
scene.add(particleSystem);
mixer.clipAction( geometry.animations[ 0 ], particleSystem )
.setDuration( 5 ) // one second
.startAt( - Math.random() ) // random phase (already running)
.play(); // let's go
}
)
}