Revision: 14737
http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=14737
Author: ben2610
Date: 2008-05-08 00:32:45 +0200 (Thu, 08 May 2008)
Log Message:
-----------
Fix BGE bug #6054: Camera actuator crashes Blender. The crash occurs when
min,max << height (bad practice anyway).
Modified Paths:
--------------
trunk/blender/source/gameengine/Ketsji/KX_CameraActuator.cpp
Modified: trunk/blender/source/gameengine/Ketsji/KX_CameraActuator.cpp
===================================================================
--- trunk/blender/source/gameengine/Ketsji/KX_CameraActuator.cpp
2008-05-07 22:26:47 UTC (rev 14736)
+++ trunk/blender/source/gameengine/Ketsji/KX_CameraActuator.cpp
2008-05-07 22:32:45 UTC (rev 14737)
@@ -155,14 +155,25 @@
mat[coz][0]= vec[0];
mat[coz][1]= vec[1];
mat[coz][2]= vec[2];
- Kx_Normalize((float *)mat[coz]);
+ if (Kx_Normalize((float *)mat[coz]) == 0.f) {
+ /* this is a very abnormal situation: the camera has reach the
object center exactly
+ We will choose a completely arbitrary direction */
+ mat[coz][0] = 1.0f;
+ mat[coz][1] = 0.0f;
+ mat[coz][2] = 0.0f;
+ }
inp= mat[coz][2];
mat[coy][0]= - inp*mat[coz][0];
mat[coy][1]= - inp*mat[coz][1];
mat[coy][2]= 1.0 - inp*mat[coz][2];
- Kx_Normalize((float *)mat[coy]);
+ if (Kx_Normalize((float *)mat[coy]) == 0.f) {
+ /* the camera is vertical, chose the y axis arbitrary */
+ mat[coy][0] = 0.f;
+ mat[coy][1] = 1.f;
+ mat[coy][2] = 0.f;
+ }
Kx_Crossf(mat[cox], mat[coy], mat[coz]);
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