docs: mat4x3 account for latest mulitplication changes

This also includes tables to explain how mat4x3, column vectors, and row vectors are represented. Also includes how resulting matrix or vector is formed. Signed-off-by: Vincent Davis Jr <[email protected]>
recp · Mar 31, 2024 · b601c8d · b601c8d
1 parent e7f0404
commit b601c8d
Showing 1 changed file with 60 additions and 6 deletions.
diff --git a/docs/source/mat4x3.rst b/docs/source/mat4x3.rst
@@ -23,6 +23,16 @@ Functions:
 #. :c:func:`glm_mat4x3_transpose`
 #. :c:func:`glm_mat4x3_scale`
 
+Represented
+~~~~~~~~~~~
+
+.. csv-table:: mat4x3
+   :header: "", "column 1", "column 2", "column 3", "column4"
+
+   "row 1", "m00", "m10", "m20", "m30"
+   "row 2", "m01", "m11", "m21", "m31"
+   "row 3", "m02", "m12", "m22", "m32"
+
 Functions documentation
 ~~~~~~~~~~~~~~~~~~~~~~~
 
@@ -51,28 +61,72 @@ Functions documentation
       | *[in]*  **src**  pointer to an array of floats
       | *[out]* **dest** destination matrix4x3
 
-.. c:function:: void glm_mat4x3_mul(mat4x3 m1, mat3x4 m2, mat4 dest)
+.. c:function:: void glm_mat4x3_mul(mat4x3 m1, mat3x4 m2, mat3 dest)
 
     multiply m1 and m2 to dest
 
     .. code-block:: c
 
-       glm_mat4x3_mul(mat4x3, mat3x4, mat4);
+       glm_mat4x3_mul(mat4x3, mat3x4, mat3);
 
     Parameters:
       | *[in]*  **m1**    left matrix (mat4x3)
       | *[in]*  **m2**    right matrix (mat3x4)
-      | *[out]* **dest**  destination matrix (mat4)
+      | *[out]* **dest**  destination matrix (mat3)
+
+    .. csv-table:: mat4x3
+        :header: "", "column 1", "column 2", "column 3", "column 4"
+
+        "row 1", "a00", "a10", "a20", "a30"
+        "row 2", "a01", "a11", "a21", "a31"
+        "row 3", "a02", "a12", "a22", "a32"
+
+    .. csv-table:: mat3x4
+        :header: "", "column 1", "column 2", "column 3"
+
+        "row 1", "b00", "b10", "b20"
+        "row 2", "b01", "b11", "b21"
+        "row 3", "b02", "b12", "b22"
+        "row 4", "b03", "b13", "b23"
+
+    .. csv-table:: mat3x3
+        :header: "", "column 1", "column 2", "column 3"
 
-.. c:function:: void glm_mat4x3_mulv(mat4x3 m, vec3 v, vec4 dest)
+        "row 1", "a00 * b00 + a10 * b01 + a20 * b02 + a30 * b03", "a00 * b10 + a10 * b11 + a20 * b12 + a30 * b13", "a00 * b20 + a10 * b21 + a20 * b22 + a30 * b23"
+        "row 2", "a01 * b00 + a11 * b01 + a21 * b02 + a31 * b03", "a01 * b10 + a11 * b11 + a21 * b12 + a31 * b13", "a01 * b20 + a11 * b21 + a21 * b22 + a31 * b23"
+        "row 3", "a02 * b00 + a12 * b01 + a22 * b02 + a32 * b03", "a02 * b10 + a12 * b11 + a22 * b12 + a32 * b13", "a02 * b20 + a12 * b21 + a22 * b22 + a32 * b23"
 
-    multiply mat4x3 with vec3 (column vector) and store in dest vector
+.. c:function:: void glm_mat4x3_mulv(mat4x3 m, vec4 v, vec3 dest)
+
+    multiply mat4x3 with vec4 (column vector) and store in dest column vector
 
     Parameters:
       | *[in]*  **m**     mat4x3 (left)
-      | *[in]*  **v**     vec3 (right, column vector)
+      | *[in]*  **v**     vec4 (right, column vector)
       | *[out]* **dest**  destination (result, column vector)
 
+    .. csv-table:: mat4x3
+        :header: "", "column 1", "column 2", "column 3", "column 4"
+
+        "row 1", "m00", "m10", "m20", "m30"
+        "row 2", "m01", "m11", "m21", "m31"
+        "row 3", "m02", "m12", "m22", "m32"
+
+    .. csv-table:: column vec4 (1x4)
+        :header: "", "column 1"
+
+        "row 1", "v0"
+        "row 2", "v1"
+        "row 3", "v2"
+        "row 4", "v3"
+
+    .. csv-table:: column vec3 (1x3)
+        :header: "", "column 1"
+
+        "row 1", "m00 * v0 + m10 * v1 + m20 * v2 + m30 * v3"
+        "row 2", "m01 * v0 + m11 * v1 + m21 * v2 + m31 * v3"
+        "row 3", "m02 * v0 + m12 * v1 + m22 * v2 + m32 * v3"
+
 .. c:function:: void glm_mat4x3_transpose(mat4x3 m, mat3x4 dest)
 
     transpose matrix and store in dest