shadow_outline.mesh.glsl

//Copyright (c) 2020 BlenderNPR and contributors. MIT license.

#include "Pipelines/NPR_Pipeline.glsl"

uniform sampler1D color_gradient;

uniform vec4 line_color = vec4(0.0,0.0,0.0,1.0);
uniform float line_id_boundary_width = 1.0;


void COMMON_PIXEL_SHADER(Surface S, inout PixelOutput PO)
{
    vec3 diffuse = get_diffuse_gradient(color_gradient);
    
    #ifdef PRE_PASS
    {
        int shadow = 0;
        for (int i = 0; i < LIGHTS.lights_count; i++)
        {
            Light L = LIGHTS.lights[i];
            LitSurface LS = NPR_lit_surface(S.position, S.normal, S.id, L, i);

            if(LS.shadow) shadow++;
        }
        PO.id += 1000*shadow;
    }
    #endif


    float line = get_line_advanced(line_id_boundary_width,0,0,0,0,0,0,0,0);

    PO.color.rgb = diffuse;
    PO.line_color = line_color;
    PO.line_width = line;
}