I've used other HDR effect shaders for Reshade before and wanted to see if I could create one, this one is of course not the real thing found on Nvidia's RTX Graphics cards which use Tensor Cores but it does look decent for a simple post-processing effect.
Frame Blender is fairly self explanatory but its important to disable all in-game post processing such as film grain or motion blur effects for the shader to work, DLSS and FSR4+ should work fine. if you check debug options and see the depth visible like the image below you are good.
link to my Git