#include "common.hlsli"

struct vv
{
    float4 P : POSITION;
    float2 tc : TEXCOORD0;
    float4 c : COLOR0;
};

struct v2p_particle
{
    float4 color : COLOR0;
    p_flat base;
};

v2p_particle main(vv I)
{
    float4 w_pos = I.P;

    // Eye-space pos/normal
    p_flat O;
    O.hpos = mul(m_WVP, w_pos);
    O.N = normalize(eye_position - w_pos);
    float3 Pe = mul(m_WV, I.P);
    O.tcdh = float4(I.tc.xyyy);
    O.position = float4(Pe, .2h);

#ifdef USE_TDETAIL
    O.tcdbump = O.tcdh * dt_params; // dt tc
#endif

    v2p_particle pp;
    pp.color = I.c;
    pp.base = O;

    return pp;
}