// Textured Mesh Vertex Shader

#define NBT 6

uniform float3x4 texmatrix[NBT];
uniform float3 camdir[NBT];

void main(
  float4 position    : POSITION,
  float3 normal      : NORMAL,
  uniform float4x4 ModelViewProj,
  uniform float4x4 ModelView    ,
  uniform float4x4 ModelViewIT  ,

      out float4 ppos        : POSITION,
      out float4 ptexcoord[NBT] : TEXCOORD1,
      out float3 pnormal     : TEXCOORD0)
{
  ppos = mul(ModelViewProj, position);
  pnormal = normalize(mul((float3x3)ModelViewIT, normal));
  for (int t=0;t<NBT;t++)
  {
    ptexcoord[t].xyz = mul(texmatrix[t],position);
    ptexcoord[t].w = -dot(camdir[t],normal);
  }
}