///////////////////////////////////////////////////////////////////////////////
//
//      ##  ######
//       ######  ###
//  ## ###############        Shark 3D Engine (www.shark3d.com)
//   ########## # # #
//    ########                Copyright (c) 1996-2006 Spinor GmbH.
//   ######### # # #          All rights reserved.
//  ##   ##########
//      ##
//
///////////////////////////////////////////////////////////////////////////////

#include \
    <levelutil/shader/prog/d3d9_hlsl/include_stddef_d3d9_hlsl.s3d_shadercode_run>

///////////////////////////////////////////////////////////////////////////////

struct VS_INPUT
{
    float4 posObj: POSITION;
    S3D_BONE_DECL_STD(boneWgh, boneSubscr)
    float2 tex0:TEXCOORD0;
   float3 normal:NORMAL;
};

struct VS_OUTPUT
{
    float4 posScr : POSITION;
    float3 eye    : TEXCOORD0;
    float3 normal : TEXCOORD1;
    float3 posView: TEXCOORD2;    
};

///////////////////////////////////////////////////////////////////////////////

const float4x4 matProj;
const float4x4 matProjView;
const float4x4 matView;
const float4x4 matViewInvTrans;
S3D_MATBONE_DECL_STD(matBone)


///////////////////////////////////////////////////////////////////////////////
// Vertexshader
// Profile: 1x1
float4 last_Center;
float4x4 worldMat;
float4x4 worldMatIT;

VS_OUTPUT main(VS_INPUT input)
{
    VS_OUTPUT output = (VS_OUTPUT)0;

    float4x4 matBoneFinal;
    S3D_BONE_TRANSF_STD(matBoneFinal, matBone, input.boneWgh, input.boneSubscr);
    // Transform vectors by matBoneFinal
    float4 posView = mul(input.posObj, matBoneFinal);
    
    output.posScr = mul(posView, matProj);
    
    // vector from vertex to the eye in view-space
    //output.eye = mul(input.posObj, matView);    
    //output.normal = mul(input.normal, matViewInvTrans);
    //output.posView = mul(float4(input.posObj.xyz, 0), matView);

    output.normal = mul(mul(input.normal, matViewInvTrans), worldMatIT);
    output.eye = mul(posView, worldMatIT).xyz; 
    output.posView = mul(posView, worldMat);
    output.posView -= last_Center;   

    return output;
}

///////////////////////////////////////////////////////////////////////////////