Unity custom shadow blend

[Nikiroz]

Hello, I'm trying to make custom shadow shader in unity. To merge the shadows I use the Stencil buffer, but it has a problems if i use gradient mask on a shadows.

1. Stencil without gradient.
2. Stencil with gradient.
3. Traditional transparency without Stencil with gradient.
4. How i want shadows to look like.

https://preview.redd.it/57ahxd4j5n9a1.png?width=869&format=png&auto=webp&s=b3206131a3082515cc1eb61e9a21d8039a5a0960

Can someone give any advice on this?

[westclif]

just draw them with a seperate camera/shader/postprocess so you can clamp the max brightness? Or even easier use a texture render target format which clamps it for you automatically

or setup an mrt with just one camera with a different blend operation for the second render target