Partial cleanup of timing system, with some guidance from Joshua:

* Fractional frames support has been changed to use a new var, scene->r.subframe. 
This is a 0.0-1.0 float representing a subframe interval, used in generating a final float 
frame number to evaluate animation system etc.
* Changed frame_to_float() and some instances of bsystem_time() into a convenience function:
float BKE_curframe(scene) which retrieves the floating point current frame, after subframe
and frame length corrections.
* Removed blur_offs and field_offs globals. These are now stored in render, used to 
generate a scene->r.subframe before render database processing.

1 files changed, 2 insertions, 1 deletions

diff --git a/source/blender/modifiers/intern/MOD_build.c b/source/blender/modifiers/intern/MOD_build.c
index 05ef85b818a..47693ba337e 100644
--- a/source/blender/modifiers/intern/MOD_build.c
+++ b/source/blender/modifiers/intern/MOD_build.c
@@ -41,6 +41,7 @@
 #include "BKE_modifier.h"
 #include "BKE_object.h"
 #include "BKE_particle.h"
+#include "BKE_scene.h"
 
 
 static void initData(ModifierData *md)
@@ -106,7 +107,7 @@ static DerivedMesh *applyModifier(ModifierData *md, Object *ob,
 		frac = bsystem_time(md->scene, ob, md->scene->r.cfra,
 					bmd->start - 1.0f) / bmd->length;
 	} else {
-		frac = md->scene->r.cfra - bmd->start / bmd->length;
+		frac = BKE_curframe(md->scene) - bmd->start / bmd->length;
 	}
 	CLAMP(frac, 0.0, 1.0);