RetroArch/gfx/drivers/rsx_shaders/vpshader_basic.vcg

void main
(
  float4 position : POSITION,
  float4 color : COLOR0,
  float2 texcoord : TEXCOORD0,
  uniform float4x4 modelViewProj,
  out float4 oPosition : POSITION,
  out float4 oColor : COLOR0,
  out float2 oTexCoord : TEXCOORD0
)
{
  oPosition = mul(position, modelViewProj);
  oColor = color;
  oTexCoord = texcoord;
}