void main(
	float3 in_position,
	float4 in_color, 
	float2 in_texcoord,
	uniform float4x4 mvp_matrix,
	out float4 out_position : POSITION, 
	out float4 out_color : COLOR, 
	out float2 out_texcoord: TEXCOORD0)
{
	out_position = mul(mvp_matrix, float4(in_position, 1.0f));
	out_color    = in_color;
	out_texcoord = in_texcoord;
}