automated snapshot

main.go

@@ -12,16 +12,16 @@ import (
 )
 
 const (
-	targetWidth  = 1000
-	targetHeight = 1000
-	sourceScale  = 2
 	snapshotsDir = "snapshots"
 )
 
 func main() {
 
-	sourceWidth := int32(sourceScale * targetWidth)
-	sourceHeight := int32(sourceScale * targetHeight)
+	var sourceWidth int32 = 8000
+	var sourceHeight int32 = 6400
+
+	var targetWidth int32 = int32(2000)
+	var targetHeight int32 = int32(1200)
 
 	os.MkdirAll(snapshotsDir, 0755)
 	log := log.New(os.Stdout, "", log.Ldate|log.Ltime|log.Lshortfile)
@@ -47,7 +47,7 @@ func main() {
 			x: -float32(sourceWidth / 2.0),
 			y: -float32(sourceHeight / 2.0),
 			field: &ScaleField{
-				scale: 1.0,
+				scale: 4.0,
 				field: &imageField,
 			},
 		}
@@ -74,10 +74,16 @@ func main() {
 		// begin drawing
 		t := time.Since(t0).Seconds()
 
+		targetBounds := rl.Rectangle {
+			X: float32(targetWidth) / 4.0,
+			Y: 0,
+			Width: float32(targetWidth) * 3.0 / 4.0,
+			Height: float32(targetHeight),
+		}
+
 		// set up RenderCtx
 		renderCtx := &RenderCtx{
-			TargetWidth:  int32(targetWidth),
-			TargetHeight: int32(targetHeight),
+			TargetBounds: targetBounds,
 			SourceWidth:  int32(sourceWidth),
 			SourceHeight: int32(sourceHeight),
 			Time:         t,
@@ -91,11 +97,7 @@ func main() {
 		 */
 		rl.BeginDrawing()
 		rl.ClearBackground(rl.Blank)
-
 		sketch.Draw(renderCtx)
-
-		rl.DrawText("Mouse right button drag to move, mouse wheel to zoom", 10, 10, 20, rl.White)
-
 		rl.EndDrawing()
 
 		if rl.IsKeyDown(rl.KeySpace) {