#extension GL_ARB_bindless_texture : require

#include "camera.glsl"
#include "draw_cmds_data.glsl"


VERTEX_EXPORT flat uint DrawID;

VERTEX_EXPORT VertexData {
  vec2 uv;
} VertexOut;

#if VERTEX_SHADER

layout(location = 0) in vec3 aPos;
layout(location = 2) in vec2 aUV;

void main() {
  DrawID = gl_BaseInstance + gl_InstanceID;
  mat4 model = draw_data[DrawID].transform;
  mat4 viewModel = view * model;
  vec4 vPos = viewModel * vec4(aPos.xyz, 1.0);
  gl_Position = projection * vPos;
  VertexOut.uv = aUV;
}

#endif

#if FRAGMENT_SHADER

#include "material.glsl"

out vec4 FragColor;

void main() {
#if BLEND_MODE == 1
  // Alpha Mask material
  int matIdx = draw_data[DrawID].materialIdx;
  if (getAlbedo(matIdx).a < 0.5) {
    discard;
  }
#endif
}

#endif