How To Create a Level Transition (in Portal)

File:Changelevel final setup.png

The finished result. (in BTS style)

Introduction

This tutorial will show you how to create level transitions (in the game Portal).

Construction

Step 1

Create a trigger_changelevel brush textured completely with a trigger texture.

Step 2

Create an info_landmark somewhere near your trigger_changelevel. Give it a targetname of transition_to_next_level_landmark (the name doesn't really matter).

Step 3

Go back to your trigger_changelevel and set these keyvalues:

Key	Value
New Map Name	(whatever the name of the map you want to transition to is)
Landmark Name	transition_to_next_level_landmark (or whatever you named your landmark)

The finished result should look like the picture above.

Conclusion

This is one of multiple ways you can create a level transition. To see more ways you can make level transitions, check out this page.