func_illusionary

func_illusionary
Type	brush
Status	supported

Essentially an entirely non-solid func_wall. If it has toggleable textures, they will toggle when the entity is triggered.

1 Keyvalues

Contents : skin

It's used to change the 'contents' of this brush (e.g. volumetric light makes it behave as water when entities going though it). You don't really need to use this.

2 Flags

2 : Use angles

If set, the func_illusionary will use its angles.

3 Notes

Even if non-solid, the compiler will still generate clipnodes for this entity. Set "ZHLT Disable Clipping" to 'Always non-solid' to prevent that (zhlt_noclip key with value of 1).
Alternatively, use SKIP texture instead of NULL on faces that have the texture on the entity.