Black Models

The "Black Models" issue can be caused by many different things. One thing could be the lack of proper lighting in the area. If the world is bright around the model and yet the model is still black: it is a pretty good indicator the problem is the lighting. Check for leaks and whether fullbright is set to 1. Another important note with models coming out back is if you have a 3D skybox in the map. When using a 3d skybox, make sure to have a light_environment both inside the level AND inside the skybox. This is very critical.

Other known causes for Black Models:

• The color keyvalue is 0 0 0 for the entity it is used in.
• The nearest worldbrush directly beneath the model is either unlit, or using a culled texture such as tools/sky.