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.. default-domain:: C
mat3
====
Header: cglm/mat3.h
Table of contents (click to go):
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Macros:
1. GLM_MAT3_IDENTITY_INIT
#. GLM_MAT3_ZERO_INIT
#. GLM_MAT3_IDENTITY
#. GLM_MAT3_ZERO
#. glm_mat3_dup(mat, dest)
Functions:
1. :c:func:`glm_mat3_copy`
#. :c:func:`glm_mat3_identity`
#. :c:func:`glm_mat3_identity_array`
#. :c:func:`glm_mat3_zero`
#. :c:func:`glm_mat3_mul`
#. :c:func:`glm_mat3_transpose_to`
#. :c:func:`glm_mat3_transpose`
#. :c:func:`glm_mat3_mulv`
#. :c:func:`glm_mat3_quat`
#. :c:func:`glm_mat3_scale`
#. :c:func:`glm_mat3_det`
#. :c:func:`glm_mat3_inv`
#. :c:func:`glm_mat3_trace`
#. :c:func:`glm_mat3_swap_col`
#. :c:func:`glm_mat3_swap_row`
#. :c:func:`glm_mat3_rmc`
Functions documentation
~~~~~~~~~~~~~~~~~~~~~~~
.. c:function:: void glm_mat3_copy(mat3 mat, mat3 dest)
copy mat3 to another one (dest).
Parameters:
| *[in]* **mat** source
| *[out]* **dest** destination
.. c:function:: void glm_mat3_identity(mat3 mat)
copy identity mat3 to mat, or makes mat to identiy
Parameters:
| *[out]* **mat** matrix
.. c:function:: void glm_mat3_identity_array(mat3 * __restrict mat, size_t count)
make given matrix array's each element identity matrix
Parameters:
| *[in,out]* **mat** matrix array (must be aligned (16/32) if alignment is not disabled)
| *[in]* **count** count of matrices
.. c:function:: void glm_mat3_zero(mat3 mat)
make given matrix zero
Parameters:
| *[in,out]* **mat** matrix to
.. c:function:: void glm_mat3_mul(mat3 m1, mat3 m2, mat3 dest)
multiply m1 and m2 to dest
m1, m2 and dest matrices can be same matrix, it is possible to write this:
.. code-block:: c
mat3 m = GLM_MAT3_IDENTITY_INIT;
glm_mat3_mul(m, m, m);
Parameters:
| *[in]* **m1** left matrix
| *[in]* **m2** right matrix
| *[out]* **dest** destination matrix
.. c:function:: void glm_mat3_transpose_to(mat3 m, mat3 dest)
transpose mat4 and store in dest
source matrix will not be transposed unless dest is m
Parameters:
| *[in]* **mat** source
| *[out]* **dest** destination
.. c:function:: void glm_mat3_transpose(mat3 m)
tranpose mat3 and store result in same matrix
Parameters:
| *[in]* **mat** source
| *[out]* **dest** destination
.. c:function:: void glm_mat3_mulv(mat3 m, vec3 v, vec3 dest)
multiply mat4 with vec4 (column vector) and store in dest vector
Parameters:
| *[in]* **mat** mat3 (left)
| *[in]* **v** vec3 (right, column vector)
| *[out]* **dest** destination (result, column vector)
.. c:function:: void glm_mat3_quat(mat3 m, versor dest)
convert mat3 to quaternion
Parameters:
| *[in]* **m** rotation matrix
| *[out]* **dest** destination quaternion
.. c:function:: void glm_mat3_scale(mat3 m, float s)
multiply matrix with scalar
Parameters:
| *[in, out]* **mat** matrix
| *[in]* **dest** scalar
.. c:function:: float glm_mat3_det(mat3 mat)
returns mat3 determinant
Parameters:
| *[in]* **mat** matrix
Returns:
mat3 determinant
.. c:function:: void glm_mat3_inv(mat3 mat, mat3 dest)
inverse mat3 and store in dest
Parameters:
| *[in]* **mat** matrix
| *[out]* **dest** destination (inverse matrix)
.. c:function:: void glm_mat3_trace(mat3 m)
| sum of the elements on the main diagonal from upper left to the lower right
Parameters:
| *[in]* **m** matrix
Returns:
trace of matrix
.. c:function:: void glm_mat3_swap_col(mat3 mat, int col1, int col2)
swap two matrix columns
Parameters:
| *[in, out]* **mat** matrix
| *[in]* **col1** col1
| *[in]* **col2** col2
.. c:function:: void glm_mat3_swap_row(mat3 mat, int row1, int row2)
swap two matrix rows
Parameters:
| *[in, out]* **mat** matrix
| *[in]* **row1** row1
| *[in]* **row2** row2
.. c:function:: float glm_mat3_rmc(vec3 r, mat3 m, vec3 c)
| **rmc** stands for **Row** * **Matrix** * **Column**
| helper for R (row vector) * M (matrix) * C (column vector)
| the result is scalar because R * M = Matrix1x3 (row vector),
| then Matrix1x3 * Vec3 (column vector) = Matrix1x1 (Scalar)
Parameters:
| *[in]* **r** row vector or matrix1x3
| *[in]* **m** matrix3x3
| *[in]* **c** column vector or matrix3x1
Returns:
scalar value e.g. Matrix1x1
|
