Hi! I'm making a Wheatley map with one destroyed chamber. In both sides of the chamber I put an observation room. When you enter the chamber, the lights works perfect, but when you touch a trigger_once that I put over a platform, the lights malfunction and the platform becomes dark. What can I do?

Have you checked the outputs that trigger over the platform has? Also can you post some picture? or post the .VMF?

Here are the screenshots (The platform is where I'm standing over in the 'AFTER' screenshot)

2013-07-27_00001.jpg 2013-07-27_00002.jpg

**MORE INFO:**

Sin 4.png sp_untitled2.vmf

I have found the problem. The texture I used for the platform was 'metal/black_wall_metal002a_vertex'. I don't know why, but that thing of 'VERTEX' caused the problem. Instead of it, I now used 'metal/black_wall_metal_002a' and now it works

Yes, I was going to say That is the typical behaviour of the vertex textures. Vertex textures are used by models, never intended to be used for brushes

Thanks for the info! I didn't know that.