I use fast forward (Shift key) in my playthroughs, just to save time. See my autoexec.cfg. To record video I use default Windows 10 Gamebar video capture feature (Win+Alt+R) with the highest quality settings.
Portal 2 PTI editor uses vrad.exe to calculate ligthting, if it slows you down, you can use my vrad.cpp. (Press Shift to skip the lighting stage.) You also can temporarily replace stock vrad.exe with dummy exe that does nothing and returns errorlevel 0.
Many players use custom skins for the portal gun. See skins folder for details. I use Photoshop VTF Plugin to edit .vtf files.
You can also use command line tools:
See singleplayer portal colors tutorial and changing the crosshair and portalgun effects to match your newly colored portals.
I used RGB #ab0808 and #1db773 accordingly and "Image-Adjustments-Gradient Map" in Photoshop.
I use stock Portal 2 PTI editor, BEEmod and (occasionally) Hammer. My released maps added below.
| File | Map Name |
|---|---|
| 1529333920.p2c | Air Tiny |
| 1549696803.p2c | Nacreous Classic |
| 1550088227.p2c | Hell's Gate Part 2 |
| 1578414794.p2c | Print Classic |