Compiled a.osl -> a.oso
Compiled b.osl -> b.oso
Processing group specification:
---
shader a alayer, shader b blayer, connect alayer.f_out blayer.f_in, connect alayer.c_out blayer.c_in
---
Shader group:
---
shader a alayer ;
shader b blayer ;
connect alayer.f_out blayer.f_in ;
connect alayer.c_out blayer.c_in ;

---

Shader group "unnamed_group_2" layers are:
    alayer
	float Kd
	output float f_out
	output color c_out
    blayer
	float f_in
	color c_in

b: f_in = 0.5, c_in = 0.25 1 1

