Assigned texture to glb model in Three.js is reversed and only working with THREE.RepeatWrapping

问题

I load a glb model in Three.js generated in SketchUp. The file can be found here https://www.graviditetsberegner.dk/bpnew.skp

The model contains a group called text with a mesh. I want to display a texture containing text here. I use the below code:

var modelLoader = new THREE.GLTFLoader();

modelLoader.load("https://www.graviditetsberegner.dk/bpnew.glb", function (gltf) {

model = gltf.scene.clone();
model.scale.set(50,50,50)
scene.add(model);

//Use canvas to draw texture and add it to the model group Text
var textModelMesh = FindMeshWithNameInModel(model, "Text");
var textTexture = CreateCanvasTexture("This is a test");

textTexture.wrapS = THREE.RepeatWrapping;
textTexture.wrapT = THREE.RepeatWrapping;

textModelMesh.material.map = textTexture;

I have two issues with the code:

The text is mirrored. In other formats such as dae, the text is not mirrored
The text is only displayed when I set wrapS and wrapT to RepeatWrapping. However, the texture used in SketchUp should be similar to the dimensions of the generated texture in the canvas.

How can I fix these issues?

A fiddle showing the problem: https://jsfiddle.net/Lgmds9ce/2/

回答1:

The text is mirrored. In other formats such as dae, the text is not mirrored

As mentioned in the official documentation for THREE.GLTFLoader you have to set Texture.flipY to false if you manually replace a texture.

The text is only displayed when I set wrapS and wrapT to RepeatWrapping. However, the texture used in SketchUp should be similar to the dimensions of the generated texture in the canvas.

The texture from the asset has also set Texture.wrapS and Texture.wrapT to THREE.RepeatWrapping.

Updated fiddle: https://jsfiddle.net/d12t6p5q/1/

three.js R105

来源：https://stackoverflow.com/questions/56443872/assigned-texture-to-glb-model-in-three-js-is-reversed-and-only-working-with-thre

标签

three.js

sketchup