This is a python port of shadergraph functional GLSL linker.
A snippet is a small piece of vanilla GLSL code having one or more functions. As such, it provides inputs (parameters and prototypes) and outputs (parameters and function). For example, the following function:
vec4 opaque(vec3 color)
{
return vec4(color,1.0);
}
provides one input (vec3) and one output (vec4), while the following:
void black(out vec3 color)
{
color = vec3(0.0);
}
offers only one output (vec3).