The question was posed of how to change your rain of fire to increase its intensity of spell effects on the screen, and it was mentioned that this may have to do with particle effects. This is actually independent of the particle effects. What this means is you can increase the number of meteors without increasing the intensity of the flame effects on said meteors. I will explain, and also provide the steps to create these effects for any other users.
How to 'beef' up your spell (graphics)
Step 1 : This must be complete exactly as prescribed or this will not work, and this includes case of characters. You will never have to repeat this step again - any other changes can be done as noted in Step 2 while in game.
- Navigate to your WoW folder
- Open WTF folder
- Right click the config.wtf file and open with a text editor (you may have to go into properties and select notepad as the program to use)
- At the very bottom type (or copy and paste what I have here)
SET SpellEffectLevel "500"
- Exit the file and save
- Reload WoW and cast AoE
That was fun! Now let's take a look at this...
Step 2 : To change the effect level from now on in game you can use
where you can change the 500 to any number. The standard effect seems to be around 20, and I like 125-150 or so to see if the pack is still in the AoE without covering things up too much.
/console SET SpellEffectLevel "500"
Particle effects can still be controlled via Esc > System > Graphics > Right hand side of the Graphics tab, right column, 2nd from the very bottom.
By adjusting both numbers (Spell and Particle) you should be able to get a better rain even on budget machines. You may just need to tweak it a little, but you'll find the numbers which work for you.