Portal, but the portal surfaces are inverted

Video Description

I swapped all of the concrete and metal textures in Portal. Is it still possible to beat the game like this? Mod Download: https://www.moddb.com/mods/portal-inverted Music: https://gist.github.com/Marblr/7ee0d5cbaf6c20814f9158200849f245 TIMESTAMPS 0:00 Introduction 2:05 Chamber 00 2:31 Chamber 01 2:56 Chambers 02 + 03 6:19 Chamber 04 6:41 Chamber 05 7:29 Chambers 06 + 07 + 08 8:33 Chambers 09 + 10 13:12 Chamber 11 13:43 Chamber 12 14:05 Chamber 13 16:22 Chambers 14 + 15 21:37 Chamber 16 22:28 Chamber 17 25:11 Chamber 18 25:47 Chamber 19 29:29 Escape 00 30:30 Escape 01 32:43 Escape 02 SOCIALS Patreon: https://patreon.com/marblr Twitch: https://www.twitch.tv/marblr Twitter: https://www.twitter.com/marblrr Discord: https://discord.com/invite/V33hxwKjEy TikTok: https://www.tiktok.com/@marblrrr