X-Git-Url: https://de.git.xonotic.org/?a=blobdiff_plain;f=matrixlib.h;h=d8d14752d4a9463d12ddc9a35cd3034696a6f362;hb=31395fccff216a4286722ccaa6ef5b0bb57f083e;hp=81364c68e2de344284f21b478a19c2ea5bc67af6;hpb=a8e147ca855a521a60e4d1304d4a87fc164e6ec7;p=xonotic%2Fdarkplaces.git

diff --git a/matrixlib.h b/matrixlib.h
index 81364c68..d8d14752 100644
--- a/matrixlib.h
+++ b/matrixlib.h
@@ -73,6 +73,8 @@ void Matrix4x4_Transform4 (const matrix4x4_t *in, const float v[4], float out[4]
 // cases (rotation and translation *ONLY*), this attempts to undo the results
 // of Transform
 //void Matrix4x4_SimpleUntransform (const matrix4x4_t *in, const float v[3], float out[3]);
+// transforms a direction vector through the rotation part of a matrix
+void Matrix4x4_Transform3x3 (const matrix4x4_t *in, const float v[3], float out[3]);
 
 // ease of use functions
 // immediately applies a Translate to the matrix
@@ -139,7 +141,9 @@ void Matrix3x4_Transform (const matrix3x4_t *in, const float v[3], float out[3])
 // reverse transforms a 3D vector through a matrix3x4, at least for *simple*
 // cases (rotation and translation *ONLY*), this attempts to undo the results
 // of Transform
-void Matrix3x4_SimpleUntransform (const matrix3x4_t *in, const float v[3], float out[3]);
+//void Matrix3x4_SimpleUntransform (const matrix3x4_t *in, const float v[3], float out[3]);
+// transforms a direction vector through the rotation part of a matrix
+void Matrix3x4_Transform3x3 (const matrix3x4_t *in, const float v[3], float out[3]);
 
 // ease of use functions
 // immediately applies a Translate to the matrix