It would be cool if the position of each rect was saved with the current resolution you're working on. That way, if you change the resolution, it would still remember how it was. Otherwise, every time you change the resolution, you lose the configurations.

A dedicated second camera handles the rendering of the volumetric lights, applying post-processing and blending the result into the main scene using a custom shader.

Thank you!
I used Unity’s ECS to generate the obstructor and light source data.

Then, I leveraged Burst-compiled jobs to construct the volumetric light meshes in parallel for optimal performance.