diff --git a/make_radiantshader.sh b/make_radiantshader.sh
new file mode 100755
index 00000000..7c43d60f
--- /dev/null
+++ b/make_radiantshader.sh
@@ -0,0 +1,102 @@
+#!/bin/sh
+
+# Converts .mat files in a gamedir
+# to a bunch of .shader files.
+# It also overwrites scripts/shaderlist.txt
+# So don't mix environments!
+
+ROOT_DIR="$(pwd)"
+LEGACY_OUT="$ROOT_DIR/$1/scripts"
+SHADERLIST="$ROOT_DIR/$1/scripts/shaderlist.txt"
+
+echo "Dumping all ..mat files into one..."
+
+if [ -f "$SHADERLIST" ]
+then
+	rm "$SHADERLIST"
+fi
+
+# scan a dir inside textures/???/
+scan_dir()
+{
+	SHADER_FILE="$LEGACY_OUT/$1.shader"
+	cd "$1"
+	MAT_COUNT=$(ls | grep \.mat | wc -l | tr -d '\n')
+
+	echo "...$MAT_COUNT .mat files counted"
+
+	if [ "$MAT_COUNT" -eq 0 ]
+	then
+		exit
+	fi
+
+	echo "// THIS FILE HAS BEEN AUTOMATICALLY GENERATED!" > "$SHADER_FILE"
+	echo "// Please refer to the original documentation." >> "$SHADER_FILE"
+	echo "// This shader is for development purposes ONLY." >> "$SHADER_FILE"
+	echo "" >> "$SHADER_FILE"
+
+	find * -type f -name '*.mat'| while read SHADER_N; do
+		BASENAME=$(echo "$SHADER_N" | cut -d '.' -f 1)
+		NAME="textures/$1/$BASENAME"
+
+		echo "$NAME" >> "$SHADER_FILE"
+		cat "$SHADER_N" >> "$SHADER_FILE"
+		sed -i 's|$diffusemap|'"${NAME}".tga'|g' "$SHADER_FILE"
+	done;
+
+
+	#echo "Stripping GLSL parameters..."
+	sed -i '/program /d' "$SHADER_FILE"
+	sed -i '/reflectcube/d' "$SHADER_FILE"
+	sed -i '/reflectmask /d' "$SHADER_FILE"
+	sed -i '/normalmap /d' "$SHADER_FILE"
+	sed -i '/specularmap /d' "$SHADER_FILE"
+
+	#echo "Replacing diffusemap calls with qer_editorimage..."
+	sed -i 's/diffusemap /qer_editorimage /g' "$SHADER_FILE"
+
+	#echo "Swapping DDS references with TARGA..."
+	sed -i 's/.dds/.tga/g' "$SHADER_FILE"
+	sed -i 's/$rt:base/textures\/dev\/rtsurface.tga/g' "$SHADER_FILE"
+	sed -i 's/.shader//g' "$SHADER_FILE"
+
+	echo "$1" >> "$SHADERLIST"
+	echo "...written $SHADER_FILE"
+}
+
+# iterate over all 'categories' inside textures/
+scan_textures()
+{
+	NEW_ROOT="$(pwd)/$1/textures"
+	cd "$NEW_ROOT"
+
+	ls | while read TEXTURE_DIR
+	do
+		cd "$NEW_ROOT"
+		if [ -d "$TEXTURE_DIR" ]
+		then
+			echo "Texture dir: $TEXTURE_DIR ($1)"
+			scan_dir "$TEXTURE_DIR" "$LEGACY_OUT"
+		fi
+	done
+}
+
+#mkdir -p "$(dirname "$LEGACY_OUT")"
+
+# Start with any possible pk3dirs
+find "$1" -type d -name '*.pk3dir'| while read PKDIR; do
+	cd "$ROOT_DIR"
+
+	if [ -d "$PKDIR/textures/" ]
+	then
+		scan_textures "$PKDIR"
+	fi
+done
+
+cd "$ROOT_DIR"
+
+# Then look into the loose dir
+if [ -d "$1/textures" ]
+then
+	scan_textures "$1"
+fi