shadow pass

[mic]

hello! tell me please what i'm doing wrong:

i want to render shadow pass using rsl

simple shader:

surface InShadow( )
{
	color C, res;
	normal Nf = normalize(N);
	illuminance(P, Nf, PI/2)
	{
		lightsource("__inShadowC", C);
		res += C;
	}
	Oi = 1;
	Ci = res;
}

then i create point light (hlight), ray-trace shadows on, put this mat on the objects and render. the result is not adequate.) where is the error?

[Alanw]

Did you create a light shader that outputs "__inShadowC"?

[mic]

Did you create a light shader that outputs "__inShadowC"?

yes, that was the answer. i thought (why? =)) that asad_light have this output till i have viewed the code) the problem solved.)