Cycles: Do some logging when motion is detected in the scene

intern/cycles/blender/blender_camera.cpp

@@ -20,6 +20,8 @@
 #include "blender_sync.h"
 #include "blender_util.h"
 
+#include "util_logging.h"
+
 CCL_NAMESPACE_BEGIN
 
 /* Blender Camera Intermediate: we first convert both the offline and 3d view
@@ -400,6 +402,7 @@ void BlenderSync::sync_camera_motion(BL::Object b_ob, float motion_time)
 	tfm = blender_camera_matrix(tfm, cam->type);
 
 	if(tfm != cam->matrix) {
+		VLOG(1) << "Camera " << b_ob.name() << " motion detected.";
 		if(motion_time == -1.0f) {
 			cam->motion.pre = tfm;
 			cam->use_motion = true;

intern/cycles/blender/blender_mesh.cpp

@@ -27,6 +27,7 @@
 #include "subd_split.h"
 
 #include "util_foreach.h"
+#include "util_logging.h"
 
 #include "mikktspace.h"
 
@@ -761,11 +762,13 @@ void BlenderSync::sync_mesh_motion(BL::Object b_ob, Object *object, float motion
 		if(new_attribute) {
 			if(i != numverts || memcmp(mP, &mesh->verts[0], sizeof(float3)*numverts) == 0) {
 				/* no motion, remove attributes again */
+				VLOG(1) << "No actual motion for mesh " << b_mesh.name();
 				mesh->attributes.remove(ATTR_STD_MOTION_VERTEX_POSITION);
 				if(attr_mN)
 					mesh->attributes.remove(ATTR_STD_MOTION_VERTEX_NORMAL);
 			}
 			else if(time_index > 0) {
+				VLOG(1) << "Filling motion for mesh " << b_mesh.name();
 				/* motion, fill up previous steps that we might have skipped because
 				 * they had no motion, but we need them anyway now */
 				float3 *P = &mesh->verts[0];

intern/cycles/blender/blender_object.cpp

@@ -30,6 +30,7 @@
 
 #include "util_foreach.h"
 #include "util_hash.h"
+#include "util_logging.h"
 
 CCL_NAMESPACE_BEGIN
 
@@ -251,6 +252,7 @@ Object *BlenderSync::sync_object(BL::Object b_parent, int persistent_id[OBJECT_P
 		if(object && (scene->need_motion() == Scene::MOTION_PASS || object_use_motion(b_ob))) {
 			/* object transformation */
 			if(tfm != object->tfm) {
+				VLOG(1) << "Object " << b_ob.name() << " motion detected.";
 				if(motion_time == -1.0f) {
 					object->motion.pre = tfm;
 					object->use_motion = true;