Differential D11280 Diff 37175 source/blender/blenlib/intern/math_vector.c

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	return (isfinite(v[0]) && isfinite(v[1]) && isfinite(v[2]) && isfinite(v[3]));	return (isfinite(v[0]) && isfinite(v[1]) && isfinite(v[2]) && isfinite(v[3]));
	}	}

	/******************************** Angles *********************************/	/******************************** Angles *********************************/

	/* Return the angle in radians between vecs 1-2 and 2-3 in radians	/* Return the angle in radians between vecs 1-2 and 2-3 in radians
	* If v1 is a shoulder, v2 is the elbow and v3 is the hand,	* If v1 is a shoulder, v2 is the elbow and v3 is the hand,
	* this would return the angle at the elbow.	* this would return the angle at the elbow.
	*	*
	* note that when v1/v2/v3 represent 3 points along a straight line	* note that when v1/v2/v3 represent 3 points along a straight line
	* that the angle returned will be pi (180deg), rather then 0.0	* that the angle returned will be pi (180deg), rather than 0.0
	*/	*/
	float angle_v3v3v3(const float a[3], const float b[3], const float c[3])	float angle_v3v3v3(const float a[3], const float b[3], const float c[3])
	{	{
	float vec1[3], vec2[3];	float vec1[3], vec2[3];

	sub_v3_v3v3(vec1, b, a);	sub_v3_v3v3(vec1, b, a);
	sub_v3_v3v3(vec2, b, c);	sub_v3_v3v3(vec2, b, c);
	normalize_v3(vec1);	normalize_v3(vec1);
	normalize_v3(vec2);	normalize_v3(vec2);

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