#include "stereokit.hlsli"
#include "dofdev.hlsli"

//--name = dofdev/unlit

//--diffuse          = white

Texture2D    diffuse   : register(t0);
SamplerState diffuse_s : register(s0);

struct vsIn {
	float4 pos  : SV_Position;
	float3 norm : NORMAL0;
	float2 uv   : TEXCOORD0;
	float4 col  : COLOR0;
};
struct psIn {
	float4 pos   : SV_Position;
  float3 norm  : NORMAL0;
	float2 uv    : TEXCOORD0;
	float4 world : WORLD;
	float4 color : COLOR0;
	float3 campos : TEXCOORD1;
	uint view_id : SV_RenderTargetArrayIndex;
};

psIn vs(vsIn input, uint id : SV_InstanceID) {
	psIn o;
	o.view_id = id % sk_view_count;
	id        = id / sk_view_count;

  o.campos  = sk_camera_pos[o.view_id].xyz;

	o.world   = mul(input.pos, sk_inst[id].world);
	o.pos     = mul(o.world, sk_viewproj[o.view_id]);

	o.norm = normalize(mul(input.norm, (float3x3)sk_inst[id].world));

	o.uv     = input.uv;
	o.color  = input.col;
  o.color *= linear_gamma(sk_inst[id].color);
	return o;
}

float4 ps(psIn input) : SV_TARGET {
  return input.color * diffuse.Sample(diffuse_s, input.uv);
}