Add a -transparent-dim=percent flag to set the extra dimming of transparent materials each depth meter.

cmd/mtseeder/baselevel.go

@@ -45,7 +45,7 @@ func order(a, b int) (int, int) {
 func createBaseLevel(
 	address string,
 	xMin, zMin, xMax, zMax int,
-	transparent bool,
+	transparent bool, transparentDim float32,
 	colorsFile, outDir string,
 	numWorkers int) (err error) {
 
@@ -55,6 +55,8 @@ func createBaseLevel(
 		return
 	}
 
+	colors.TransparentDim = transparentDim
+
 	baseDir := filepath.Join(outDir, baseLevelDir)
 	if err = os.MkdirAll(baseDir, os.ModePerm); err != nil {
 		return

cmd/mtseeder/main.go

@@ -8,20 +8,23 @@ import (
 	"flag"
 	"fmt"
 	"log"
+
+	"bitbucket.org/s_l_teichmann/mtsatellite/common"
 )
 
 func main() {
 	var (
-		port          int
-		host          string
-		xMin, zMin    int
-		xMax, zMax    int
-		colorsFile    string
-		outDir        string
-		numWorkers    int
-		skipBaseLevel bool
-		skipPyramid   bool
-		transparent   bool
+		port           int
+		host           string
+		xMin, zMin     int
+		xMax, zMax     int
+		colorsFile     string
+		outDir         string
+		numWorkers     int
+		skipBaseLevel  bool
+		skipPyramid    bool
+		transparent    bool
+		transparentDim float64
 	)
 
 	flag.IntVar(&port, "port", 6379, "port to of mtredisalize server")
@@ -42,15 +45,22 @@ func main() {
 	flag.BoolVar(&skipPyramid, "sp", false, "Do not generate pyramid tiles (shorthand)")
 	flag.BoolVar(&transparent, "transparent", false, "Render transparent blocks.")
 	flag.BoolVar(&transparent, "t", false, "Render transparent blocks (shorthand).")
+	flag.Float64Var(&transparentDim,
+		"transparent-dim", common.DefaultTransparentDim*100.0,
+		"Extra dimming of transparent nodes each depth meter in percent.")
+	flag.Float64Var(&transparentDim,
+		"td", common.DefaultTransparentDim*100.0,
+		"Extra fimming of transparent nodes each depth meter in percent. (shorthand)")
 
 	flag.Parse()
 
 	if !skipBaseLevel {
+		td := common.Clamp32f(float32(transparentDim/100.0), 0.0, 1.0)
 		address := fmt.Sprintf("%s:%d", host, port)
 		if err := createBaseLevel(
 			address,
 			xMin, zMin, xMax, zMax,
-			transparent,
+			transparent, td,
 			colorsFile,
 			outDir,
 			numWorkers); err != nil {

cmd/mttilemapper/main.go

@@ -27,6 +27,7 @@ func main() {
 		shaded               bool
 		transparent          bool
 		cpuProfile           string
+		transparentDim       float64
 	)
 
 	flag.IntVar(&port, "port", 6379, "port to of mtredisalize server")
@@ -46,6 +47,9 @@ func main() {
 	flag.StringVar(&outfile, "o", "out.png", "image file of result (shorthand)")
 	flag.BoolVar(&shaded, "shaded", true, "draw relief")
 	flag.BoolVar(&transparent, "transparent", false, "render transparent blocks")
+	flag.Float64Var(
+		&transparentDim, "transparent-dim", common.DefaultTransparentDim*100,
+		"Extra dimming of transparent nodes every depth meter in percent (0-100).")
 	flag.StringVar(&cpuProfile, "cpuprofile", "", "write cpu profile to file")
 
 	flag.Parse()
@@ -66,6 +70,9 @@ func main() {
 		log.Fatalf("Cannot open color file: %s", err)
 	}
 
+	colors.TransparentDim = common.Clamp32f(
+		float32(transparentDim/100.0), 0.0, 100.0)
+
 	address := fmt.Sprintf("%s:%d", host, port)
 
 	var client *common.RedisClient

cmd/mtwebmapper/main.go

@@ -18,18 +18,19 @@ import (
 
 func main() {
 	var (
-		webPort     int
-		webHost     string
-		webDir      string
-		mapDir      string
-		redisPort   int
-		redisHost   string
-		colorsFile  string
-		workers     int
-		transparent bool
-		updateHosts string
-		websockets  bool
-		playersFIFO string
+		webPort        int
+		webHost        string
+		webDir         string
+		mapDir         string
+		redisPort      int
+		redisHost      string
+		colorsFile     string
+		workers        int
+		transparent    bool
+		transparentDim float64
+		updateHosts    string
+		websockets     bool
+		playersFIFO    string
 	)
 	flag.IntVar(&webPort, "web-port", 8808, "port of the web server")
 	flag.IntVar(&webPort, "p", 8808, "port of the web server (shorthand)")
@@ -52,6 +53,12 @@ func main() {
 	flag.StringVar(&colorsFile, "c", "colors.txt", "colors used to render map tiles (shorthand).")
 	flag.BoolVar(&transparent, "transparent", false, "Render transparent blocks.")
 	flag.BoolVar(&transparent, "t", false, "Render transparent blocks (shorthand).")
+	flag.Float64Var(&transparentDim,
+		"transparent-dim", common.DefaultTransparentDim*100.0,
+		"Extra dimming of transparent nodes each depth meter in percent.")
+	flag.Float64Var(&transparentDim,
+		"td", common.DefaultTransparentDim*100.0,
+		"Extra fimming of transparent nodes each depth meter in percent. (shorthand)")
 	flag.BoolVar(&websockets, "websockets", false, "Forward tile changes to clients via websockets.")
 	flag.BoolVar(&websockets, "ws", false, "Forward tile changes to clients via websockets (shorthand).")
 	flag.StringVar(&playersFIFO, "players", "", "Path to FIFO file to read active players from.")
@@ -86,6 +93,8 @@ func main() {
 		if colors, err = common.ParseColors(colorsFile); err != nil {
 			log.Fatalf("ERROR: problem loading colors: %s", err)
 		}
+		colors.TransparentDim = common.Clamp32f(
+			float32(transparentDim/100.0), 0.0, 100.0)
 		redisAddress := fmt.Sprintf("%s:%d", redisHost, redisPort)
 
 		var allowedUpdateIps []net.IP