Shader Composition for Globe?

CesiumJS
1

Hi Cesium team!

Is there a mechanism for modifying the Globe shaders at runtime without having to completely replace them? I’m thinking something like the Material/Fabric framework. For example, say I wanted to enable a mode to display the globe using a color ramp based on the height of the terrain. I didn’t see anything obvious, but I was hoping I was overlooking a feature that was already there :wink:

Thanks!

Jason

2

Hi Jason,

You are right, there is not a way to do this with the public API or a clean way to do this internally.

Contributions here would be great. A good place to start is where the shaders are concatenated for different imagery layers and post-processing:

https://github.com/AnalyticalGraphicsInc/cesium/blob/master/Source/Scene/GlobeSurfaceShaderSet.js

The following pull request may also be useful but I have not looked at it.

Apply color palette on render. by NaderCHASER · Pull Request #4953 · CesiumGS/cesium · GitHub

Thanks,

Patrick

3

Great, thanks Patrick, I’ll figure something out :wink: