Conceal sections of a three.js mesh by utilizing an alphaMap within the material

We are currently attempting to conceal certain parts of a mesh by using the alphaMap property on the material. However, we have encountered an issue where this method does not have any effect on the mesh. The code we are using is as follows:

new THREE.MeshPhongMaterial( {
        ambient: 0xBABABA,
        color: 0xBABABA,
        specular: 0xA1A1A1,
        shininess: 10,
        shading: THREE.SmoothShading,
        reflectivity: 0.20,
        envMap: cubemap,
        bumpScale: 0.15,
        // alphaMap
        alphaMap: THREE.ImageUtils.loadTexture("img/TransparentMap.png"),
        transparent: true,
})

We have tried using various alphaMaps such as: this and this.

If there are better alternatives for concealing parts of a mesh other than using alphaMap, we are open to exploring them.

javascriptthree.js

Answer №1

The inclusion of the alphaMap attribute occurred as of revision r.68. It is recommended to perform an update.

When feasible, it is advisable to work with the latest edition.

Note that the alpha map is expected to be in grayscale form. The information extracted from this map will only utilize the green channel.

Version three.js r.69

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