dark props

[Prosciutto]

for some wierd reason some cliff props on my map are completely black

 

[Muddy]

Thaaaat's Source! This usually happens because the prop's origin is inside a brush. Easiest way to fix this is to create a info_lighting entity somewhere above the displacement and link the cliff props to it.

VDC article about info_lighting

 

[YM]

Thaaaat's Source! This usually happens because the prop's origin is inside a brush. Easiest way to fix this is to create a info_lighting entity somewhere above the displacement and link the cliff props to it.

VDC article about info_lighting

Wait, does that prop even use a normal map?????

If it doesn't (which I don't think it does?) then it's not a lighting origin thing, it's a compile options thing: http://www.nodraw.net/2010/12/lighting-compile-options/

 

[DrSquishy]

I think I heard somewhere that it might be because there aren't enough cubemaps near the prop, although that might be a different error entirely

 

[MOCOLONI]

I think I heard somewhere that it might be because there aren't enough cubemaps near the prop, although that might be a different error entirely

Reflections have nothing to do with the lighting. Not even with a rock model (except some from HL2).