The following illustrates how to rotate the cube about the fixed point P i using postmultiplications:

Which order should be taken in terms of a series of the following postmultiplications to generate the above result? (C is the current transformation matrix.)
Rotate: C ¬ CR
Move fixed point back: C ¬ C T -1
Start with identity matrix: C ¬ I
Move fixed point to origin: C ¬ CT

Question

The following illustrates how to rotate the cube about the fixed point P i  using postmultiplications:  
  
 Which order should be taken in terms of a series of the following postmultiplications to generate the above result? (C is the current transformation matrix.) 
 Rotate: C  ¬  CR 
 Move fixed point back: C  ¬  C T -1    
 Start with identity matrix: C  ¬  I 
 Move fixed point to origin: C  ¬  CT

Answer

C  ¬  CT 
 C  ¬  CR 
 C  ¬  CT -1    
 C  ¬  I

Answer

C  ¬  I 
 C  ¬  CT 
 C  ¬  CR 
 C  ¬  CT -1

Answer

C  ¬  I 
 C  ¬  CT -1    
 C  ¬  CR 
 C  ¬  CT

Answer

C  ¬  CR 
 C  ¬  CT -1    
 C  ¬  I 
 C  ¬  CT

Crowdly

The following illustrates how to rotate the cube about the fixed point P i usin...

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