Differential D14970 Diff 55893 source/blender/modifiers/intern/MOD_correctivesmooth.c

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Show First 20 Lines • Show All 406 Lines • ▼ Show 20 Lines	static bool calc_tangent_loop(const float v_dir_prev[3],
cross_v3_v3v3(r_tspace[2], v_dir_prev, v_dir_next);		cross_v3_v3v3(r_tspace[2], v_dir_prev, v_dir_next);
normalize_v3(r_tspace[2]);		normalize_v3(r_tspace[2]);

/* Make orthogonal using `r_tspace[2]` as a basis.		/* Make orthogonal using `r_tspace[2]` as a basis.
*		*
* NOTE: while it seems more logical to use `v_dir_prev` & `v_dir_next` as separate X/Y axis		* NOTE: while it seems more logical to use `v_dir_prev` & `v_dir_next` as separate X/Y axis
* (instead of combining them as is done here). It's not necessary as the directions of the		* (instead of combining them as is done here). It's not necessary as the directions of the
* axis aren't important as long as the difference between tangent matrices is equivalent.		* axis aren't important as long as the difference between tangent matrices is equivalent.
* Some computations can be skipped by combining the the two directions,		* Some computations can be skipped by combining the two directions,
* using the cross product for the 3rd axes. */		* using the cross product for the 3rd axes. */
add_v3_v3(r_tspace[0], r_tspace[1]);		add_v3_v3(r_tspace[0], r_tspace[1]);
normalize_v3(r_tspace[0]);		normalize_v3(r_tspace[0]);
cross_v3_v3v3(r_tspace[1], r_tspace[2], r_tspace[0]);		cross_v3_v3v3(r_tspace[1], r_tspace[2], r_tspace[0]);

return true;		return true;
}		}

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