table of contents
al_invert_transform(3) | al_invert_transform(3) |
NAME¶
al_invert_transform - Allegro 5 API
SYNOPSIS¶
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#include <allegro5/allegro.h> void al_invert_transform(ALLEGRO_TRANSFORM *trans)
DESCRIPTION¶
Inverts the passed transformation. If the transformation is nearly singular (close to not having an inverse) then the returned transformation may be invalid. Use al_check_inverse(3) to ascertain if the transformation has an inverse before inverting it if you are in doubt.
Parameters:
- •
- trans - Transformation to invert
Note: Allegro’s transformation inversion functions work correctly only with 2D transformations.
SEE ALSO¶
Allegro reference manual |