4. Matrix Question

Matrix Question

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    THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

    On 30/03/2010 at 17:36, xxxxxxxx wrote:

    User Information:
    Cinema 4D Version:   11.5 
    Platform:   Windows  ;   
    Language(s) :     C++  ;

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    Hello,

    I am creating a Matrix that will be used as the matrix for my particles.

    I have a few questions about Matrices.

    When I Create a matrix like...

    Matrix m;

    I would like to know the following...

    is...   m.off = the center position of the matrix.  Where it is centrally located in global space?

    also...  when I define the axis vector (i.e m.v1, m.v2, and m.v3) am I defining the position in global space that the tip of the axis is pointing toward?

    If this is true, by defining a matrix like this.

    Matrix m;
    m.off = Vector(0, 0, 0);
    m.v1 = Vector(100, 0, 0);
    m.v2 = Vector(0, 100, 0);
    m.v3 = Vector(0, 0, 100);

    I am creating a matrix that sits at world center with axis that extend outward a perfect center for x, y, and z 100..   Right?

    Hopefully these questions make sense.   My ultimate goal is to create a matrix for my particles so that they can be moved, rotated, and scaled with the matrix.

    Is my understanding of creating  a matrix correct?

    Thanks..

    PS   If I am noit correct,  could someone explain to me what the v1, v2, and v3 represent.

    Thanks.

    ~Shawn

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  • H

    THE POST BELOW IS MORE THAN 5 YEARS OLD. RELATED SUPPORT INFORMATION MIGHT BE OUTDATED OR DEPRECATED

    On 31/03/2010 at 02:17, xxxxxxxx wrote:

    the length of v1,v2 and v3 also defines the scale of the object. Check the C++ AND coffee documentation, it´s explained in there. Otherwise take a look at matrix operations in general in every math book for further information.

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