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This also includes tables to explain how mat4x2, column vectors, and row vectors are represented. Also includes how resulting matrix or vector is formed. Signed-off-by: Vincent Davis Jr <vince@underview.tech>
142 lines
3.5 KiB
ReStructuredText
142 lines
3.5 KiB
ReStructuredText
.. default-domain:: C
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mat4x2
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======
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Header: cglm/mat4x2.h
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Table of contents (click to go):
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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Macros:
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1. GLM_MAT4X2_ZERO_INIT
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#. GLM_MAT4X2_ZERO
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Functions:
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1. :c:func:`glm_mat4x2_copy`
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#. :c:func:`glm_mat4x2_zero`
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#. :c:func:`glm_mat4x2_make`
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#. :c:func:`glm_mat4x2_mul`
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#. :c:func:`glm_mat4x2_mulv`
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#. :c:func:`glm_mat4x2_transpose`
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#. :c:func:`glm_mat4x2_scale`
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Represented
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~~~~~~~~~~~
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.. csv-table:: mat4x2
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:header: "", "column 1", "column 2", "column 3", "column4"
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"row 1", "m00", "m10", "m20", "m30"
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"row 2", "m01", "m11", "m21", "m31"
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Functions documentation
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~~~~~~~~~~~~~~~~~~~~~~~
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.. c:function:: void glm_mat4x2_copy(mat4x2 mat, mat4x2 dest)
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copy mat4x2 to another one (dest).
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Parameters:
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| *[in]* **mat** source
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| *[out]* **dest** destination
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.. c:function:: void glm_mat4x2_zero(mat4x2 mat)
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make given matrix zero
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Parameters:
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| *[in,out]* **mat** matrix
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.. c:function:: void glm_mat4x2_make(const float * __restrict src, mat4x2 dest)
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Create mat4x2 matrix from pointer
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.. note:: **@src** must contain at least 8 elements.
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Parameters:
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| *[in]* **src** pointer to an array of floats
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| *[out]* **dest** destination matrix4x2
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.. c:function:: void glm_mat4x2_mul(mat4x2 m1, mat2x4 m2, mat2 dest)
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multiply m1 and m2 to dest
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.. code-block:: c
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glm_mat4x2_mul(mat4x2, mat2x4, mat2);
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Parameters:
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| *[in]* **m1** left matrix (mat4x2)
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| *[in]* **m2** right matrix (mat2x4)
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| *[out]* **dest** destination matrix (mat2)
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.. csv-table:: mat4x2
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:header: "", "column 1", "column 2", "column 3", "column 4"
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"row 1", "a00", "a10", "a20", "a30"
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"row 2", "a01", "a11", "a21", "a31"
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.. csv-table:: mat2x4
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:header: "", "column 1", "column 2"
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"row 1", "b00", "b10"
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"row 2", "b01", "b11"
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"row 3", "b02", "b12"
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"row 4", "b03", "b13"
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.. csv-table:: mat2x2
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:header: "", "column 1", "column 2"
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"row 1", "a00 * b00 + a10 * b01 + a20 * b02 + a30 * b03", "a00 * b10 + a10 * b11 + a20 * b12 + a30 * b13"
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"row 2", "a01 * b00 + a11 * b01 + a21 * b02 + a31 * b03", "a01 * b10 + a11 * b11 + a21 * b12 + a31 * b13"
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.. c:function:: void glm_mat4x2_mulv(mat4x2 m, vec4 v, vec2 dest)
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multiply mat4x2 with vec4 (column vector) and store in dest vector
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Parameters:
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| *[in]* **m** mat4x2 (left)
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| *[in]* **v** vec4 (right, column vector)
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| *[out]* **dest** destination (result, column vector)
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.. csv-table:: mat4x2
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:header: "", "column 1", "column 2", "column 3"
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"row 1", "m00", "m10", "m20"
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"row 2", "m01", "m11", "m21"
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"row 3", "m02", "m12", "m22"
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"row 4", "m03", "m13", "m23"
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.. csv-table:: column vec4 (1x4)
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:header: "", "column 1"
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"row 1", "v0"
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"row 2", "v1"
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"row 3", "v2"
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"row 4", "v3"
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.. csv-table:: column vec2 (1x2)
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:header: "", "column 1"
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"row 1", "m00 * v0 + m10 * v1 + m20 * v2 + m30 * v3"
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"row 2", "m01 * v0 + m11 * v1 + m21 * v2 + m31 * v3"
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.. c:function:: void glm_mat4x2_transpose(mat4x2 m, mat2x4 dest)
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transpose matrix and store in dest
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Parameters:
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| *[in]* **m** matrix
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| *[out]* **dest** destination
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.. c:function:: void glm_mat4x2_scale(mat4x2 m, float s)
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multiply matrix with scalar
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Parameters:
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| *[in, out]* **m** matrix
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| *[in]* **s** scalar
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