[Bf-blender-cvs] SVN commit: /data/svn/bf-blender [58527] branches/soc-2013-cycles_mblur/ intern/cycles/blender/blender_object.cpp: Added code to extract the export times.

[Gavin Howard]

Revision: 58527
          http://projects.blender.org/scm/viewvc.php?view=rev&root=bf-blender&revision=58527
Author:   gdh
Date:     2013-07-23 05:14:11 +0000 (Tue, 23 Jul 2013)
Log Message:
-----------
Added code to extract the export times. These times take into account 
the shuttertime set by the user.

Modified Paths:
--------------
    branches/soc-2013-cycles_mblur/intern/cycles/blender/blender_object.cpp

Modified: branches/soc-2013-cycles_mblur/intern/cycles/blender/blender_object.cpp
===================================================================
--- branches/soc-2013-cycles_mblur/intern/cycles/blender/blender_object.cpp	2013-07-23 04:59:20 UTC (rev 58526)
+++ branches/soc-2013-cycles_mblur/intern/cycles/blender/blender_object.cpp	2013-07-23 05:14:11 UTC (rev 58527)
@@ -339,7 +339,24 @@
 		
 		/* Get the new export times. */
 		
+		/* We need to use the shutter time. */
+		float shuttertime = scene->camera->shuttertime;
+		float half_frame = 0.5f * shuttertime;
 		
+		/* This is a float to prevent a lot of casting in a for loop. */
+		float frame = static_cast<float>(b_scene.frame_current());
+		
+		/* XXX: Do ALL compilers optimize the divide by 2? */
+		int half_steps = mblur_steps / 2;
+		float step_width = half_frame / half_steps;
+		float time;
+		
+		for (int i = 1; i <= half_steps; ++i) {
+			time = i * step_width;
+			object_export->insert(frame - time);
+			object_export->insert(frame + time);
+		}
+		
 		/* Add the new export times to the object. */
 		object->export_times = object_export;
 	}