How can I create linear-gradient as texture in Babylon

what if I want to create such a background in the scene

Hello and welcome!

The simplest way is to set canvas transparent with
scene.clearColor = new BABYLON.Color4(0,0,0,0);

and use any CSS background behind the canvas.
Example: Mu-so Wood Edition 3D

Please note, that this is just background, it is not a texture.
For textures one may use Color3Gradient | Babylon.js Documentation


Just to add you can also use layers

or create a cube map


You can also set the clearColor to transparent, and do a CSS gradient on the canvas parent node

1 Like

nice thanks