• r_raytracedReflectionsTemporalUpscaleQuality 0 // Gets rid of the flickering in reflections as well as makes them overall more cleaner and less blurry. Best used with DLSS, FSR, or XeSS based on your GPU vendor, because the reflections render based on your INTERNAL resolution. Consider keeping this setting unmodified if you're going for high/native resolutions. Performance impact: Medium
  
• r_ssr 0 // Disables the game's screen-space reflections that blend over the ray traced ones. Because of how this game's RT reflections work by default, there's a lot less particles in the ray traced structure compared to Doom Eternal's raw RT reflections. This is where the below command comes in... Performance impact: Next to none
  
• r_skipBlendedTLAS 0 // Allows particles to be captured in RT reflections, just like Eternal's RT reflections! Performance impact: High
  
• r_ssrMinSmoothness X // Allows way more surfaces to use reflections. REPLACE X WITH YOUR DESIRED VALUE: Default cutoff is 0.8, Eternal's Low-High cutoff is 0.65, Eternal's Ultra cutoff is 0.58. Performance impact: Medium-High

THIS WILL HAVE A CONSIDERABLE HIT TO PERFORMANCE, but not as large of a hit as enabling Full Path Tracing is. Test each command out as your preferences align. Hebeth is probably the best stage to test this out, particularly around where you get the Plasma Gun.

If you want to turn these commands on all at once, you can do the following

• Go to your DOOMTheDarkAges install folder
  
• Go into the base folder and make a new txt/cfg file
  
• Put the desired commands in said text file ON DIFFERENT LINES, then save the file
  
• Launch the game, then in the console opened by pressing Tilde (`/~ key), type "exec x" without quotes, and with x = the txt/cfg file you just made WITH the file extension at the end!!
  
• You will need to re-execute the command(s) every time you launch the game and every time you make any changes to your video settings, so this makes it way easier. You can also press the up or down arrows on your keyboard in the console to cycle through the previous console commands you entered from the current session.

These don't pertain to raytracing at all, but you can put the following in your Steam launch options (without quotes!) for some benefits

"+com_skipIntroVideo 1" - Skips the startup logos completely, which helps with bootup times immensely
"+com_skipKeyPressOnLoadScreens 1" - Skips having to press space when a loading screen is finished, good for getting right back into the action, but if you appreciate the loading screen tips and pointers, perhaps ignore this one