diff --git a/src/physics.rs b/src/physics.rs
index 4b710ff..efd5a1f 100644
--- a/src/physics.rs
+++ b/src/physics.rs
@@ -956,6 +956,7 @@ impl TouchingState{
 			//detect model collision in reverse
 			let model_mesh=models.mesh(intersect.model_id);
 			let minkowski=crate::model_physics::MinkowskiMesh::minkowski_sum(&model_mesh,&style_mesh);
+			println!("### predict_collision_out id={} body={} time_limit={}",intersect.model_id,relative_body,collector.time());
 			collector.collect(minkowski.predict_collision_out(&relative_body,collector.time()).map(|(face,time)|{
 				TimedInstruction{
 					time,
@@ -1295,6 +1296,7 @@ impl crate::instruction::InstructionEmitter<PhysicsInstruction> for PhysicsState
 			//no checks are needed because of the time limits.
 			let model_mesh=self.models.mesh(id);
 			let minkowski=crate::model_physics::MinkowskiMesh::minkowski_sum(&model_mesh,&style_mesh);
+			println!("### predict_collision_in id={} body={} time_limit={}",id,relative_body,collector.time());
 			collector.collect(minkowski.predict_collision_in(&relative_body,collector.time())
 				//temp (?) code to avoid collision loops
 				.map_or(None,|(face,time)|if time==self.time{None}else{Some((face,time))})
@@ -1916,4 +1918,4 @@ fn already_inside_hit_nothing(){
 		Planar64Vec3::int(0,1,0),
 		Time::ZERO
 	),None);
-}
\ No newline at end of file
+}