Raycast doesn't work with embedded types

[gamerscomplete]

The type switch in the raycast specifically looks for graphic types, if the graphic type is embedded in another type the raycast will skip checking for the intersection.

Example of what does not work

type Cube struct {
    *graphic.Mesh
}

geom := geometry.NewCube(1)    
mat := material.NewStandard(&_cubeColor)
mat.SetSide(material.SideFront)
mesh := graphic.NewMesh(geom, mat)
cube := Cube{Mesh: mesh2}
app.Scene().Add(cube)

The cube added to the scene will not be able to be hit by the raycaster, but if

app.Scene().Add(cube.Mesh)

is used it can hit by the raycaster.

[danaugrs]

Thanks @gamerscomplete - I agree this should be improved. Not sure what's the best approach.