Every test at Aperture Laboratories is ran through a super computer to see if they fit in the budget, there isn't any water chambers or too many hazards, and that every test chamber has and doesn't have certain objects. This is what Portal would have looked like if these weren't a problem.
required mods
Portal Gun
Custom NPCs
Redstone Paste
Bad Mobs
Atelier Canvas (not required)
Dynamic Lights
Carpenter's Blocks
IChunUtil
mod setup
Bad mobs (should look like this):
S:bannedMobs <
Creeper
Bat
Dynamic Lights: the golden helmet should look like this in the thePlayer, otherPlayers, and mobEquipment config golden_helmet=8
Atelier canvas: don't know if It will work but here's the pictures I used/edited
Other Downloads
the texture pack is an edited version of the precisely portal texture pack.click here for Precisely Portal. Modified Texture pack coming soon.
Map download coming soon.
screenshots