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// missing_texture.glsl
extern float scale = 16.0;
vec4 effect(vec4 color, Image texture, vec2 uv, vec2 screen_coords)
{
vec4 tex = Texel(texture, uv);
// checker pattern
float cx = floor(screen_coords.x / scale);
float cy = floor(screen_coords.y / scale);
float checker = mod(cx + cy, 2.0);
// vec3 magenta = vec3(1.0, 0.0, 1.0);
//magenta main menu hurts my eyes
// {0.22, 0.38, 0.22, 1},
// {0.18, 0.30, 0.18, 1},
vec3 magenta = vec3(0.22, 0.38, 0.22);
vec3 black = vec3(0.18, 0.30, 0.18);
vec3 pattern = mix(magenta, black, checker);
return vec4(pattern, tex.a) * color;
}
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