public Vector4 Vertex(int iface, int nthvert)
{
Vector3 gl_Vertex = Model.GetVertex(iface, nthvert);
varying_uv.Set_Col(Model.GetUV(iface, nthvert), nthvert);
var m = VPM.MultiplyByVector3_V4(gl_Vertex);
return(m);
}
public Vector4 Vertex(int iface, int nthvert)
{
Vector3 gl_Vertex = Model.GetVertex(iface, nthvert);
varying_uv.Set_Col(Model.GetUV(iface, nthvert), nthvert);
var m = VPM.MultiplyByVector3_V4(gl_Vertex);
switch (nthvert)
{
case 0:
varying_intensity.X = Math.Max(0, Vector3.Dot(Model.GetNormal(iface, nthvert), light_dir));
break;
case 1:
varying_intensity.Y = Math.Max(0, Vector3.Dot(Model.GetNormal(iface, nthvert), light_dir));
break;
case 2:
varying_intensity.Z = Math.Max(0, Vector3.Dot(Model.GetNormal(iface, nthvert), light_dir));
break;
}
return(m);
}