Horizon:zero Dawn Cloud System

Horizon:zero Dawn Cloud System

recently  i read the gpu pro 7 article <<Real-Time Volumetric Cloudscapes>>, i want to implement a volumetric cloud system myself.

 

i create the 3d noise texture accord to the article.

and write the shader, test it. but i found it's hard to model the cloud.

i use the sample cloud density code from the article, and a weather texture from the video which embed in the siggraph 2015 ppt.

and the result is not good.

 

the article didn't said how to mapping the weather texture to the sky dome?

and how to generate the weather?

i found the left bottom weather texture in the video maybe is not the original weather texture, it's just used show some info.

 

has someone do the same thing?

any suggestion will be so appreciate.

thanks.