Shader not updated?

Questions
1

Hi,

I am trying to write my own ShaderMaterial. The first time it succeeds. However, when I try to modify the shader code at runtime and overwrite the material of my mesh, it does not change anything! That’s a problem because I want to be able to update shader code at runtime.

In this playground, you see what I mean: https://www.babylonjs-playground.com/#59M6SR#1

Click on the textured box, and the texture on the box should now be sampled by a totally different UV factor (just a demo, I really need to change the shader for a different reason!).

Can you help me make the shader update?

Cheers
Matthias

2

Hey! and welcome!

Because you are using the same shader the system does not update its cache
So you need to call engine.releaseEffects() to clean the cache:

https://www.babylonjs-playground.com/#59M6SR#2

3

Hey, Deltakosh, nice to meet you.

Thanks for answering the question, now it works!

By the way: When I click on your version of the playground, the box is initially white whereas in my version, it has a texture. How come?

4

it is because of your UV right?