Calculating Billboard Position on 3DTiles Models Using Oriented Bounding Boxes in Cesium
Problem Overview
When working with 3D building models in Cesium, positioning billboards accurately on top of structures requires precise geometric calculations. The standard bounding sphere appraoch often places billboards at incorrect heights, as it doesn't conform to the actual shape of the building.
Initial Approach and Issue
The initial imp ...
Posted on Wed, 03 Jun 2026 17:02:04 +0000 by snakez
Implementing Dynamic Visual Effects for Cesium Entities using CallbackProperty
1. Creating a Pulsing Point Entity
The following example demonstrates how to make a point entity flash by oscillating the alpha channel of its color. We define a state variable to track the current opacity level and a directional flag to switch between fading in and out.
function createPulsingPoint() {
let currentOpacity = 1.0;
let isFa ...
Posted on Sun, 17 May 2026 05:24:12 +0000 by red-x