Question How to create a 2D sprite from an array of Vector3[] vertices

So im currently creating a top down shooter that plays around fog of war, the reason i want to create a sprite this way is because i want to use the sprite mask feature, basically i only want enemies to appear when they are in my FOV, and by creating a sprite dynamically during runtime, i can set the sprite mask to act as my vision cone and render enemies only when they are in the vision cone.

so far i have succeeded in creating a vision cone , but i just cant use the existing data to create a sprite with it. Any pointers would be appreciated and thanks in advance

 

this method is too cost intensive, you would need to use texture2d.setpixels and texture2d.apply, it would lag your game to hell