Details of the personal division of work：
As I am very interested in special effects, the simulation part, I was responsible for the special effects (particle and volumetric effects), the design and sculpting of the body of Yog-Sothoth, and the compositing of the final shot.
1. Particles Effects Part & Composition ：
The main particles：
Swirl particles：
2. Design of Yog-Sothoth：
In my conception and understanding, I wished to design a Yuggothoth that was not a traditional Cthulhu character, I wanted it to be more mysterious and elegant, to achieve this goal I made several versions of the form and different motion forms, not least with hair dynamics (blender), but finally I chose the idea of using cloud-like eyelids to animate the opening of the eyes to reveal the eyeballs, as it is more mysterious.
References：
First appearance at the lake：
Past visions：
The final vision：
Last act proper (particles emitted from the feet of the body）：