In the top left of there is a menu with Scene, Import, Tools and Export options, click on Scene > New Scene. To solve this we will utilize Godot's system of node instancing. Great, we have one sprite with a normal map, what about the other 300? This can be done through Scene > Project Settings > Image Loader > turn off gen_mipmaps and filter as described in this video. The second video displays what normal maps look like with anti-aliasing off, for those who want a pixel art aesthetic. Pixel perfect (anti-aliasing turned off) sprites illuminated and normal mapped Sprites illuminated with and without normal mappings Your browser does not support the video tag. You can also change properties of the light to modify its effect on the normal map.Ĭlick on the 2D light and modify texture, scale, color, energy, and mode in the inspector. Use the dropdown to load your normal map's png file.ĭrag around the 2D light to watch it interact with your sprite. 0 ) Īfter doing so, a "Shader Param" section with a "Normal" variable will be added to the Shader. Uniform texture normal //normal maps expect Y-up, but 2D is Y-down, so must mirror this. Go into this Material by clicking on the ">" button next to it.Ĭreate a new shader named normal_es and copy paste the following code: The Sprite's Inspector also has a CanvasItem section, scroll down to it and create a new Material. Light2D also requires a texture, and note that it can impact the color of light emitted (so white's best). Next, click on the sprite and the "Inspector" will appear in the bottom right - add your texture. It will help you understand the best way to architect your game with Godot, and prevent you from having to wrestle with the editor in the future. If you haven't done this before I highly recommend reading through all of Godot's documentation. Open up your Godot Editor and add a Node2D with Sprite and Light2D children.
I discovered how to do this through the Godot example. The lit textures would not dynamically interact with game lights, and thus would be more performant (ie static baking). This tool also gives the option to directly save the lit textures as a static. is to automatically generate Tile Assets from a selection of Sprites A 2D. Once you have the sprite looking just how you want it, save the normals by clicking "Export Normals" in the top tool bar (paid version required). Godot, Babylon Find this GUI tool & more on the Unity Asset Store Sale It.
There are a bunch of tools to manually modify sprites, I used bevel (width 16, height 100%, smoothness 8%) + emboss (height 100, smoothness 1).Ī few clicks and it's ready to go without any manual editing (though you can edit with the height, angle, structure, etc tools). Since normal mapping is more common for 3D, there aren't too many 2D tools available to create them, but a great one is SpriteIlluminator ( $40).ĭrag your texture into SpriteIlluminator's editor.
They can turn dull, low-polygon models into vibrant textures, and thus help combine performance and beauty.
Normal Mapping is a lighting technique commonly found in 3D games for creating the appearance of bumps and imperfections on a texture.