diff --git a/Makefile_previews b/Makefile_previews
index 61f4499..611f7f8 100644
--- a/Makefile_previews
+++ b/Makefile_previews
@@ -1,4 +1,12 @@
 TEXTURESETS := $(foreach file, $(TEXTURESET_FOLDER), $(basename $(notdir $(wildcard $(TEXTURESET_FOLDER)/*))))
+
+
+RENDER_FOLDER = $(shell cat $(MATERIALLIST) | jq -r --arg folder "$(SET)" '.[] | select(.name==$$folder) | .type')
+
+RENDER_FILES = $(foreach RENDER, $(basename $(notdir $(wildcard $(BLENDFILES_FOLDER)/$(shell cat $(MATERIALLIST) | jq -r --arg folder "$(SET)" '.[] | select(.name==$$folder) | .type')/*.blend))), $(SET)_$(RENDER))
+RENDER_LIST := $(foreach SET, $(TEXTURESETS), $(RENDER_FILES))
+
+
 BLENDFILES := $(foreach file, $(BLENDFILES_FOLDER)/master, $(basename $(notdir $(wildcard $(BLENDFILES_FOLDER)/master/*.blend))))
 BLENDFILES_SUFFIX := $(foreach file, $(BLENDFILES), $(addsuffix $(file), _))
 TARGET := $(foreach file, $(TEXTURESETS), $(addprefix $(file), $(BLENDFILES_SUFFIX)))
@@ -9,14 +17,16 @@ RENDERS := $(foreach file, $(BLENDFILES_SUFFIX), $(addprefix %, $(file)))
 RENDERS := $(foreach file, $(RENDERS), $(addsuffix .png, $(file)))
 RENDERS := $(foreach file, $(RENDERS), $(addprefix $(PREVIEW_FOLDER)/, $(file)))
 
-test:
-	echo "TARGET: $(TARGET)"
-
 all: $(TARGET)
 
 $(RENDERS): $(TEXTURESET_FOLDER)/%
+	@ echo "RENDER_LIST : $(RENDER_LIST)"
+	@ echo "RENDER_FILES : $(RENDER_FILES)"
 	@ echo "RENDERS :" $(RENDERS)
 	@ echo "BLENDFILES :" $(BLENDFILES)
+	@ echo "BLENDFILES_SUFFIX :" $(BLENDFILES_SUFFIX)
+	@ echo "TARGET : $(TARGET)"
+	@ echo "TEXTURESETS : $(TEXTURESETS)"
 	@ echo "Prerequisite :" $<
 	@ pngset=`cat $<`;\
 	echo "pngset :" $$pngset ;\