diff --git a/Makefile b/Makefile
index 1fc481a..bb29ca1 100644
--- a/Makefile
+++ b/Makefile
@@ -4,7 +4,7 @@ CXXLIBS=-lGL -lGLU -lglut
 
 # In `TARGET`, list the names of the `main_[stuff].cpp` you'd like to compile
 # into a `[stuff].bin`.
-TARGETS=glut ball
+TARGETS=glut ball bounce
 
 OBJS=Implicit.o \
 	 common_structures.o \
@@ -39,3 +39,6 @@ _gen/marching_cubes_data.cpp: tools/gen_marching_cubes_conf.py
 
 clean:
 	rm -rf $(OBJS) $(TARGETS:=.bin) _gen
+
+clean_render:
+	rm -rf render/*.o $(TARGETS:=.bin)