Commit: 55a3d48046377444a3c36ffe7a6164030d447f6f
Author: Campbell Barton
Date: Fri Apr 21 17:26:27 2017 +1000
Branches: master
https://developer.blender.org/rB55a3d48046377444a3c36ffe7a6164030d447f6f
Docs: diagram for reflect_v3_v3v3
===================================================================
M source/blender/blenlib/intern/math_vector.c
===================================================================
diff --git a/source/blender/blenlib/intern/math_vector.c
b/source/blender/blenlib/intern/math_vector.c
index dfecc3b556a..37897e2cd32 100644
--- a/source/blender/blenlib/intern/math_vector.c
+++ b/source/blender/blenlib/intern/math_vector.c
@@ -697,7 +697,19 @@ void bisect_v3_v3v3v3(float out[3], const float v1[3],
const float v2[3], const
/**
* Returns a reflection vector from a vector and a normal vector
- * reflect = vec - ((2 * DotVecs(vec, mirror)) * mirror)
+ * reflect = vec - ((2 * dot(vec, mirror)) * mirror).
+ *
+ * <pre>
+ * v
+ * + ^
+ * \ |
+ * \|
+ * + normal: axis of reflection
+ * /
+ * /
+ * +
+ * out: result (negate for a 'bounce').
+ * </pre>
*/
void reflect_v3_v3v3(float out[3], const float v[3], const float normal[3])
{
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