source: GTP/trunk/App/Demos/Illum/IBRBillboardCloudTrees/OGRE/IBRTreesOGRE/media/oldgeneral/depth_tree_leaves_vp.shd.bak @ 1493

float4 ambientColour;
float4 lightPosition;
float distanceScale;
float4x4 proj_matrix;
float4x4 worldmatrix;
float time_0_X;
//float4 ambient_light;


struct VS_OUTPUT {
   float4 Pos: POSITION;
   float  Depth: TEXCOORD2;
   float3 texCoord: TEXCOORD0;
   float3 texCoordNormalized: TEXCOORD1;
   float4 Color: COLOR0;
};

VS_OUTPUT main(float4 Pos: POSITION, float3 Norm: NORMAL, float3 texCoord: TEXCOORD0, float3 texCoordNormalized: TEXCOORD1)
{
   VS_OUTPUT Out;

   // Project it. For this sample using the normal projection
   // matrix suffices, however, real applications will typically
   // use a separate projection matrix for each light depending
   // on its properties such as FOV and range.  
   Out.Pos = mul(Pos, proj_matrix);
   float4 world_pos = mul(Pos, worldmatrix);
   Out.Depth = length(lightPosition.xyz -Pos.xyz);
   Out.texCoord = texCoord;
   Out.texCoordNormalized = texCoordNormalized;
   Out.Color = float4(0.0,1.0,0.0,1.0);
   
   return Out;
}