#version 460 core
#define STAGE_VERTEX 1
layout(std140, binding = 0) uniform scene_ubo
{
    mat4 projection;
    mat4 lightview;
    float time;
};

const vec2 vert[4] = vec2[]
(
  vec2(-1.0,  1.0),
  vec2(-1.0, -1.0),
  vec2( 1.0,  1.0),
  vec2( 1.0, -1.0)
);

const vec2 uv[4] = vec2[]
(
  vec2(0.0, 1.0),
  vec2(0.0, 0.0),
  vec2(1.0, 1.0),
  vec2(1.0, 0.0)
);

layout(location = 14) out vec2 f_coords;

void main()
{
    gl_Position = vec4(vert[gl_VertexID], 0.0, 1.0); 
    f_coords = vec2(mat3(projection) * vec3(uv[gl_VertexID], 1.0));
}