#version 450 core
// Shadow pass for 3D scenery: alpha-tested so leaves cast dappled shadows.

in VS {
    vec3 worldPos;
    vec3 normal;
    vec2 uv;
    vec3 color;
    float height;
} v;

layout(binding = 0) uniform sampler2D uTex;
uniform int uAlphaMask;
uniform float uCutoff;

void main() {
    if (uAlphaMask == 1 && texture(uTex, v.uv).a < uCutoff) discard;
}