#version 450
#extension GL_ARB_separate_shader_objects : enable
#extension GL_ARB_shading_language_420pack : enable
#extension GL_EXT_nonuniform_qualifier : require

struct MatPropData
{
  vec2 tileMult;
  uint textureIndex;
};

layout(location = 0) in struct
{
  vec4 vertPos; // location 0
  vec2 uv; // location = 1
  vec4 normal; // location = 2

} In;

// material stuff
layout(location = 3) flat in struct
{
  int materialIndex;
  uint eid;
  uint lightLayerIndex;
} In2;

layout (set = 0, binding = 1) uniform sampler2D textures[]; // for textures (global)
layout (std430, set = 3, binding = 0) buffer MaterialProperties     // For materials 
{
  MatPropData data[];
} MatProp;

layout(location = 0) out vec4 position;
layout(location = 1) out uint outEntityID;
layout(location = 2) out uint lightLayerIndices;
layout(location = 3) out vec4 normals;
layout(location = 4) out vec4 albedo;

void main()
{
  position = In.vertPos;
  normals = In.normal;
  albedo = texture(textures[nonuniformEXT(MatProp.data[In2.materialIndex].textureIndex)], In.uv);

  outEntityID = In2.eid;
  lightLayerIndices = In2.lightLayerIndex;
}