Sphere Map
Sphere Map
Define a view-independent `pseudo-environment' using a single `sphere map'.
File Name: A suitable image.
o The valid file types are Tiff, TGA, BMP, JPG, EPIX, LWI, HDR, EXR and PNG.
Up: Allows the (possibly rotated) environment to be tilted so that the zaxis matches the "up" vector.
o Default : 0,0,1
o Range: Cartesian coordinates.
Twist: Specifies how much the environment has been rotated about the z-axis, the units are degrees.
o Default : 0
o Range: - 180° / +180°