Landscape and texture code.

octodragon94 · September 21, 2024, 10:17pm

Godot 4.3
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Question

I need my texture that I saved here → $Wall/SubViewportContainer/SubViewport.get_texture().get_image().save_png(“res://Landspace/Landscape_texture/splat_map/the_splatmap.png”)

to save without quitting . I want it to save when the scene is running. I have tried doing this in the editor as well and running it as a tool and it will save only if I run and quit the project. it doesn’t finish importing until after I have quit the project. I want to Import the Texture while its running , even if I have to Destroy the old one. Making a custom Landscape shader with Gdscript.

snipercup · September 22, 2024, 6:43am

I ran into the same problem. I assume your application is loading all resources at startup?

In this case I recommend keeping a reference to the image you get from get_image() and also save it to disk. Then, you don’t need to load it during runtime (since it’s already in memor). If you need to destroy the image afterwards, just free the variable and call the delete function on your file path.

You can see my implementation here:

github.com

Khaligufzel/Dimensionfall/blob/9c0979c66516e9da1532aad1af774d9c62f7ceae/Scenes/ContentManager/Mapeditor/Scripts/GridContainer.gd#L623-L638


      
          # Function to create and save a 128x128 miniature map of the current level
          func save_miniature_map_image():
          	# Call the function to create the image texture
          	var image = create_miniature_map_image()
          	# Save the image to a file
          	var file_path = mapEditor.currentMap.get_sprite_path()
          
          	# Ensure the image is saved
          	var file = FileAccess.open(file_path, FileAccess.WRITE)
          	if file:
          		image.save_png(file_path)
          		# Create an ImageTexture from the Image
          		var image_texture = ImageTexture.create_from_image(image)
          		mapEditor.currentMap.sprite = image_texture
          	else:
          		print("Failed to save image:", file_path)

I am creating the image and saving it, but I do not load it until the game restarts. Instead, I use the image that’s already in memory. The key is to separate the image and the filepath during runtime and treat them separately.