Arcore：将要素点设置为点（而不是金字塔）

Question

我从here找到了很棒的参考，用于自定义和显示AR特征点。

它的工作原理很棒，但它显示了金字塔，我需要显示出平坦的白色点：

我需要写些什么来显示白点而不是金字塔？

更新：那是我最终所做的，并且效果很好：

if (this.timestamp != cloud.timestamp && materialHolder.getNow(null) != null) {
        timestamp = cloud.timestamp
        val buf = cloud.points

        // Point clouds are 4 values x,y,z and a confidence value.
        numOfFeaturePoints = buf.limit() / 4

        // no features in the cloud
        if (numOfFeaturePoints < 1) {
            renderable = null
            return
        }

        if (isInProcess) {
            return
        }

        isInProcess = true


        // remove current feature points
        for (child in children) {
            child.renderable = null
        }

       // add the new feature points as dots
        val feature = Vector3()
        for (i in 0 until buf.limit() / 4) {
            // feature point
            feature.x = buf.get(i * 4)
            feature.y = buf.get(i * 4 + 1)
            feature.z = buf.get(i * 4 + 2)

            val node = Node()
            node.renderable = ShapeFactory.makeCylinder(0.01f, 0.001f, Vector3(feature.x, feature.y, feature.z), myMaterial)
            node.renderable!!.isShadowCaster = false
            node.setParent(this)

        }

        isInProcess = false
    }