GLSL help

[jackofchaos]

I'm trying to make a library file that exposes the attributes of the lit surface function in Lighting\Lighting.glsl so I can use it in the node graph to make more expanded shaders. The default tools are good, but without raw access to NoL and others I can't make the kind of shaders I want. I've been trying to do it alone, but I am not familiar with GLSL

[pragma37]

This should do it:

/*  META
    @position: subtype=Vector; default=POSITION;
    @normal: subtype=Normal; default=NORMAL;
*/
LitSurface get_lit_surface(vec3 position, vec3 normal, int light_index)
{
    return lit_surface(position, normal, LIGHTS.lights[light_index], true);
}

Keep in mind this is going to get the lighting information from a single light.
It can be fine for testing, but if you want your custom shading to work with any number of lights you'll need to use a loop, which can't be expressed in node form.