Salt Shaker

I wasn't able to find salt shader online, the most similar one is a magic potion shader that simulates liquid in a container. The link is https://www.youtube.com/watch?v=tI3USKIbnh0&t=203s

However, it doesn't handle several issues:

1. surface height should dynamically adjust to rotation and the shape of the container.

2. texturing and shading, rather than assigning a uniform color.

3. bumpiness of the surface of a pool of salt

In my own shader I take care of all the above to achieve a convincing salt simulation. I also use blue print to create the salt pouring interaction, that spawn salt vfx when tilted down, and decrease the remaining amount of salt when pouring.

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For the next step, I'm planning to improve the texture of the salt and customize the glass shader. I also want to work on a better texture mapping for the fake "salt surface" using the backface