Correct UV mapping Three.js

user2402179 picture user2402179 · Nov 10, 2013 · Viewed 9.7k times · Source

I'm trying to map the UV-texture correctly, but failing...

I've got the next result in my app:

enter image description here

The result isn't that I was awaiting. I want to have the next described view:

enter image description here

The source code is here:

http://pastebin.com/aDg981Bk

Answer

WestLangley picture WestLangley · Nov 10, 2013

You need to look at PlaneGeometry.js and understand how the UVs are set. Then you will be able to figure out how to reset them. This should work -- there are two triangles per "face".

for(var i = 0; i < geometry.faces.length / 2; i++) {

    geometry.faceVertexUvs[ 0 ].push(
    [
        new THREE.Vector2( 0, 0 ),
        new THREE.Vector2( 0, 1 ),
        new THREE.Vector2( 1, 0 ),    
    ] );

    geometry.faces[ 2 * i ].materialIndex = i;

    geometry.faceVertexUvs[ 0 ].push(
    [
        new THREE.Vector2( 0, 1 ),
        new THREE.Vector2( 1, 1 ),
        new THREE.Vector2( 1, 0 ),    
    ] );

    geometry.faces[ 2 * i + 1 ].materialIndex = i;

    materials.push( createTexture( i ) );

}    

//geometry.computeFaceNormals(); // not needed
//geometry.dynamic = true; // not needed
//geometry.uvsNeedUpdate = true; // not needed since plane has not been rendered yet    

three.js r.62