Added presentations from EVI 2017

EVI - 2017/EVI 21/EVIray/Makefile

@@ -0,0 +1,30 @@
+CXX = g++
+TARGET = ray
+OBJECTS = main.o sampling.o camera.o plane.o sphere.o \
+          phong_brdf.o directional_light.o point_light.o \
+          spot_light.o sphere_area_light.o scene.o tracer.o \
+          path_tracer.o whitted_tracer.o
+DEPENDS = $(OBJECTS:.o=.d)
+CXXFLAGS = -std=c++11 -pedantic -Wall -DGLM_FORCE_RADIANS -DUSE_CPP11_RANDOM -fno-builtin	
+LDLIBS = -lfreeimage -ljson_spirit
+
+.PHONY: all
+all: CXXFLAGS += -O3 -DNDEBUG
+all: $(TARGET)
+
+.PHONY: debug
+debug: CXXFLAGS += -g
+debug: $(TARGET)
+
+$(TARGET): $(OBJECTS)
+	$(CXX) -o $@ $^ $(CXXFLAGS) $(LDLIBS)
+
+-include $(DEPENDS)
+
+%.o: %.cpp
+	$(CXX) -c $(CXXFLAGS) $*.cpp -o $*.o
+	$(CXX) -MM $(CXXFLAGS) $*.cpp > $*.d
+
+.PHONY: clean
+clean:
+	$(RM) $(TARGET) $(OBJECTS) $(DEPENDS)