To successfully use archive RIB files, also known as pre-baked RIB's, with the RenderMan
The move, rotate and scale tools support other illusions - that an object can
be directly manipulated with the mouse. What is, infact, being manipulated
is the coordinate system within which the surface or surfaces that comprise
the object are defined. The "raw" geometry of the surfaces themselves remain
totally uneffected by the move, rotate and scale tools.
Figure 1 shows a 1 x 1 (gray) polygon translated 1 unit up the Y axis - confirmed by its translateY attribute. Either the mtor or Rfm Pro plugin can be used to generate a RIB file.
The Freeze Transforms command was applied to the polygon - figure 2. Nothing
appears to have happened to the polygon but the translateY attribute has returned
Before Freeze Transforms
After Freeze Transforms
The text of the RIB files have been formatted for easier reading. You may not
have seen the
ConcatTransform [1 0 0 0 0 1 0 0 0 0 1 0 0 1 0 1]
is equivalent to,
Translate 0 1 0
Think of "Freeze Transforms" as Apply Transforms.
© 2002- Malcolm Kesson. All rights reserved.