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Offset and Scale
Changes the origin of the bitmap relative to the origin of the UV projection
coordinates. Offset values can range from –1 to 1 in either dimension (U or
V). Adjust the offset by using the two scroll bars to the right and below the
diagram (enclosed by the outer box, labeled Offset) or by entering a value in
Offset U and Offset V. The bitmap rectangle moves to reflect the new offset.
If Tile is selected and you change the offset so that the bitmap rectangle appears
outside the projection rectangle, the bitmap is still applied to the object when
you render it. (During tiling, the offset acts as a displacement, not an absolute
position.) However, if Crop is selected, the bitmap is rendered only where you
place it, as indicated by the diagram; so if the diagram shows the bitmap
outside the projection rectangle, the bitmap does not appear in a rendering.
The bitmap scale is the number of times the bitmap fits onto the object in the
U or V direction. Adjust the bitmap scaling by using the two scroll bars to the
left and above the diagram (enclosed by the inner box, labeled Scale) or by
entering a value in the Scale U and Scale V boxes. The dimensions of the
bitmap rectangle change to reflect the new scaling.
Maintain Aspect Ratio
Locks the U and V scaling dimensions together. When Maintain Aspect Ratio
is turned on, moving one scroll bar moves the other, and a value you enter
in the Scale U or Scale V box changes the other.
Tiling
With the following options, you can control how the bitmap is tiled:
1062 | Chapter 20