Move utility functions from mball to mathutils

2 files changed, 14 insertions, 0 deletions

diff --git a/source/blender/blenlib/intern/math_matrix.c b/source/blender/blenlib/intern/math_matrix.c
index d24200fc0b7..6b96f0515b9 100644
--- a/source/blender/blenlib/intern/math_matrix.c
+++ b/source/blender/blenlib/intern/math_matrix.c
@@ -2070,3 +2070,9 @@ void pseudoinverse_m3_m3(float Ainv[3][3], float A[3][3], float epsilon)
 	}
 }
 
+bool has_zero_axis_m4(float matrix[4][4])
+{
+	return len_squared_v3(matrix[0]) < FLT_EPSILON ||
+	       len_squared_v3(matrix[1]) < FLT_EPSILON ||
+	       len_squared_v3(matrix[2]) < FLT_EPSILON;
+}
diff --git a/source/blender/blenlib/intern/math_vector_inline.c b/source/blender/blenlib/intern/math_vector_inline.c
index ce5d9657c7f..b479b06da3f 100644
--- a/source/blender/blenlib/intern/math_vector_inline.c
+++ b/source/blender/blenlib/intern/math_vector_inline.c
@@ -235,6 +235,14 @@ MINLINE void swap_v4_v4(float a[4], float b[4])
 	SWAP(float, a[3], b[3]);
 }
 
+/* 3 float -> vec */
+MINLINE void copy_v3_fl3(float v[3], float x, float y, float z)
+{
+	v[0] = x;
+	v[1] = y;
+	v[2] = z;
+}
+
 /********************************* Arithmetic ********************************/
 
 MINLINE void add_v2_fl(float r[2], float f)