Detective Mode

this was a shader inspired by the detective mode in the arkham games. the purpose of this is to aid the player in my group project game called Marla. This shader highlights items of interest to aid the player with things like obstacles and finding collectables.

Initial implementation:
The first thing I had to take into account when writing this shader is that since renderer features are not monobehaviour it would be impossible to take tags from the scene itself, this led me to create a monobehaviour that is able to be applied in the scene which passes the game Object information of the objects with the tag into the pass to then assign the different colours accordingly from the shader. However, this caused unintentional consequences in the build.

The first experiment had the two different colours happen on the shader itself:

Issue Encountered:

before the shader was built, there were no issues, however, once I ran the build I ended up with a blank screen and a lot of issues.

Therefore this prompted me to change the logic of the shader for a way that's less prone to issues due to it being the more time efficient approach.
The new approach would be to simply use the renderer feature/pass to run the main blue shader and the highlights are a simple texture replacement from the monobehaviour toggle script.

The most likely reason for the error is an issue with variable checks when it comes to applying the red shader, it is likely that there is either an infinite loop for checking and filling the glow objects array or the shader is trying to run before the script is able to pass the array information without having a way to prevent it from causing issues when there are no objects assigned. The last reason(the mismatch between the script's variable assigning/variable calling - premature shader execution without safety if statement) is the most likely due to the shader working in the unity viewport but not the build.