# Last edited on 2010-10-14 19:07:25 by stolfilocal

SCENE_PREFIX := ps16L
LIGHT_NUM := 00

IN_PREFIX := data/${SCENE_PREFIX}_${LIGHT_NUM}
OUT_PREFIX := out/${SCENE_PREFIX}_${LIGHT_NUM}

TEMP := ${shell /tmp/$$$$}

MAIN_POV_FILE := ${SCENE_PREFIX}_scene.pov
LIGHT_DATA_FILE := ${IN_PREFIX}_light_data.inc

SOURCE_FILES := \
  ${MAIN_POV_FILE} \
  ${wildcard ${SCENE_PREFIX}_*.inc} \
  ${LIGHT_DATA_FILE}

SYN_IMG_FILE := ${OUT_PREFIX}_syn.png
REF_IMG_FILE := ${IN_PREFIX}_ref.png
DIF_IMG_FILE := ${OUT_PREFIX}_dif.png

all: ${SYN_IMG_FILE} ${DIF_IMG_FILE}

${SYN_IMG_FILE}: ${SOURCE_FILES} out Makefile
	cp -v ${LIGHT_DATA_FILE} light_data.inc
	-rm -f ${SYN_IMG_FILE}
	povray \
	    +AM1 +A0.0 +R${NRAYS} \
            +D +SP32 +EP4 \
            Bits_Per_Color=16 \
	    Display_Gamma=1 \
	    +Q9 \
	    Height=500 Width=500 \
	    Input_File_Name=${MAIN_POV_FILE} \
	    Output_File_Type=N \
	    Output_File_Name=${SYN_IMG_FILE}

${DIF_IMG_FILE}: ${SYN_IMG_FILE} ${REF_IMG_FILE} Makefile
	convert ${SYN_IMG_FILE} ${TEMP}_syn.ppm
	convert ${REF_IMG_FILE} ${TEMP}_ref.ppm
	pnmxarith \
            -scale 2.0 -offset 0.5 -subtract \
            ${TEMP}_syn.ppm \
            ${TEMP}_ref.ppm \
	    > ${TEMP}_dif.ppm
	convert ${TEMP}_dif.ppm ${DIF_IMG_FILE}
	-rm -f ${TEMP}_*.ppm
	-display -title '%f' ${SYN_IMG_FILE} ${REF_IMG_FILE} ${DIF_IMG_FILE}

out:
	mkdir -p out