anonymous
  • anonymous
write opengl code (function call only) and find composite transformation matrix (the sequence of transformation matrices) in homogeneous form that would produce the same transformation for : scaling a given cube by factor (2,3,4) about given point p(3,1,0)
Computer Science
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
rotation of given point p(3,1,0) about x axis of angle 90?
amistre64
  • amistre64
pfft, i got no idea what this is even saying at the moment
anonymous
  • anonymous
lol its ok actually we have to make a composite matrix to solve this i m like messed up right now with these question :|

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More answers

amistre64
  • amistre64
good luck with it ;)
anonymous
  • anonymous
lol thanks :P
KonradZuse
  • KonradZuse
Okay well in OpenGl you use a 4x4 augmented matrix, where the first 3x3 matrix has to do with it's rotation, the column matrix 4 is where in the world it is, and the 4th row is the transitioning of the matrix. Since you want a homogeneous matrix you will set the 4th column to all 0's. The 4th row would be your (2,3,4) Now about a point you would set that yourself in the 3x3 I believe as x = 3, y = 1, and z = 0. \[\left[\begin{matrix}3 & 0 & 0 & 0 \\ 0 & 1 & 0 & 0 \\ 0 & 0 & 0 & 0 \\ 2 & 3 & 4 &0\end{matrix}\right]\] should be your matrix.
anonymous
  • anonymous
thanks friend :) @KonradZuse
KonradZuse
  • KonradZuse
Np, hope that works.... I normally have GlRotate() and other goodies to do the work for me :P.
KonradZuse
  • KonradZuse
Most schools like to teach you how to do it 100%, but with IDEs and such you don't need half of the crap they teach you.
anonymous
  • anonymous
we are using Visual studio for this ... well its the first programming course i hate lol :)
KonradZuse
  • KonradZuse
Visual Studio for OpenGL? or OpenGL for C++????
KonradZuse
  • KonradZuse
OpenGL is awesome, but hard. IT's also overkill for a lot of things, but just one of the only 3D Libraries out there....
anonymous
  • anonymous
visual studio C++ with openGl libraries
KonradZuse
  • KonradZuse
I code in Java and we have now JavaFX which has an Open GL wrapper.... I don't need all the lighting and shaders and poo poo :P.
anonymous
  • anonymous
lol ... i might need your help with my project too ... actually my favorite site of coding is networking & web development stuff
KonradZuse
  • KonradZuse
not a big fan of the web, html tags are meh.

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