Hi I followed this tutorial, Playground to Production - Fruit Fallin' | Babylon.js Documentation
and when I go to put in my ts code for the background which I am using my own Image for, I get a black and red checkerboard and it is referenced correctly. This is the snippet of code that I am using:
var dome = new BABYLON.PhotoDome(
"testdome","Founders.jpg",
{
resolution: 32,
size: 1000
},
scene
);
dome.imageMode = BABYLON.PhotoDome.MODE_SIDEBYSIDE;
Most probably there is some error in image address in your code; maybe you need to add something like ./ or other depending on your setup, so your relative addresses would work.