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→The role of "x_gl_mat1"
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== The role of "x_gl_mat1" == | == The role of "x_gl_mat1" == | ||
The following section of code assembles the matrix "x_view", which is a subset of "x_gl_mat1". The matrix "x_gl_mat1" consists of | The following section of code assembles the matrix "x_view", which is a subset of "x_gl_mat1". The matrix "x_gl_mat1" consists of multiple translations, scalings and one rotation operation. | ||
{{Code|Section of axes::properties::update_camera ()"|<syntaxhighlight lang="C" style="font-size:13px"> | {{Code|Section of axes::properties::update_camera ()"|<syntaxhighlight lang="C" style="font-size:13px"> | ||
// Unit length | // Unit length vector for direction of view "f" | ||
// up vector "UP" scaled so that "s = f x UP" gets unit length | |||
ColumnVector F (c_center), f (F), UP (c_upv); | ColumnVector F (c_center), f (F), UP (c_upv); | ||
normalize (f); | normalize (f); | ||