Reflection Probes

How to add reflections to make your map look nice

I will cover the absolute basics here. I strongly recommend watching VerK0's Reflection Probe Tutorial for a more in-depth tutorial

My understanding is, as long as the density isn't too high, the more reflection probes the merrier

Basic Probe

1. Place your reflection probe in the center of the area. You can drag it by holding Ctrl + Shift and left click dragging inside the probe box in the 2D view
2. Hold Ctrl + Shift and left click a wall to automatically snap the probe to that wall
3. Adjust the falloff by holding Ctrl + Shift and left click dragging outside of the probe box

Box Probe

1. Place your probe in your area and uncheck the box KVP
2. Left click all of the faces (ceiling and floor too!)
3. You'll know it's good when the walls turn green in the 3D view, or the shape preview on the 3D view turns white

Subtraction Probe

Subtract an area from a probe

1. Place your probe in the area you want another probe to be subtracted from
2. Check the subtract KVP
3. Set the target KVP of the subtract probe to the targetname KVP of the probe you want to subtract from

_{Or simply select the subtract probe, then select the target probe, and press W. W will automatically setup targetting for any entity.}

Probe Density

Adjusts probe coverage. 4x (or blue) is the target to aim for

1. Set a keybind (or toolbar) for Show Probe Density

2. Bake your lighting
3. Toggle Show Probe Density on
4. Adjust the resolution KVP of your probes to hit the 4x target

KVPs

Optional KVPs you can set to adjust the look of your probe

Override Probe

Alternative to subtraction probe, this sets the probes priority over other probes.

1. Place your probe in the area you want to override
2. Enable the override KVP

Tips

• Set a keybind for making unselected reflection probes visible:

1. Settings > Key Bindings... (or Ctrl + K)
2. Search "Unselected"
3. Set a keybind for Show Unselected Probe Boxes